Linear.Matrix:det33 from linear-1.19.1.3

Percentage Accurate: 72.9% → 81.6%
Time: 30.1s
Alternatives: 36
Speedup: 0.7×

Specification

?
\[\begin{array}{l} \\ \left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (+
  (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* i a))))
  (* j (- (* c t) (* i y)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    code = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)))
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
}
def code(x, y, z, t, a, b, c, i, j):
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)))
function code(x, y, z, t, a, b, c, i, j)
	return Float64(Float64(Float64(x * Float64(Float64(y * z) - Float64(t * a))) - Float64(b * Float64(Float64(c * z) - Float64(i * a)))) + Float64(j * Float64(Float64(c * t) - Float64(i * y))))
end
function tmp = code(x, y, z, t, a, b, c, i, j)
	tmp = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := N[(N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(N[(c * z), $MachinePrecision] - N[(i * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right)
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 36 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 72.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (+
  (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* i a))))
  (* j (- (* c t) (* i y)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    code = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)))
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
}
def code(x, y, z, t, a, b, c, i, j):
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)))
function code(x, y, z, t, a, b, c, i, j)
	return Float64(Float64(Float64(x * Float64(Float64(y * z) - Float64(t * a))) - Float64(b * Float64(Float64(c * z) - Float64(i * a)))) + Float64(j * Float64(Float64(c * t) - Float64(i * y))))
end
function tmp = code(x, y, z, t, a, b, c, i, j)
	tmp = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := N[(N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(N[(c * z), $MachinePrecision] - N[(i * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right)
\end{array}

Alternative 1: 81.6% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ \mathbf{if}\;t\_1 \leq \infty:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;\left(t \cdot b\right) \cdot \left(\frac{j \cdot c}{b} - \frac{x \cdot a}{b}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1
         (+
          (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* i a))))
          (* j (- (* c t) (* i y))))))
   (if (<= t_1 INFINITY) t_1 (* (* t b) (- (/ (* j c) b) (/ (* x a) b))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
	double tmp;
	if (t_1 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = (t * b) * (((j * c) / b) - ((x * a) / b));
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
	double tmp;
	if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = (t * b) * (((j * c) / b) - ((x * a) / b));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)))
	tmp = 0
	if t_1 <= math.inf:
		tmp = t_1
	else:
		tmp = (t * b) * (((j * c) / b) - ((x * a) / b))
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(Float64(Float64(x * Float64(Float64(y * z) - Float64(t * a))) - Float64(b * Float64(Float64(c * z) - Float64(i * a)))) + Float64(j * Float64(Float64(c * t) - Float64(i * y))))
	tmp = 0.0
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(Float64(t * b) * Float64(Float64(Float64(j * c) / b) - Float64(Float64(x * a) / b)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + (j * ((c * t) - (i * y)));
	tmp = 0.0;
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = (t * b) * (((j * c) / b) - ((x * a) / b));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(N[(c * z), $MachinePrecision] - N[(i * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], t$95$1, N[(N[(t * b), $MachinePrecision] * N[(N[(N[(j * c), $MachinePrecision] / b), $MachinePrecision] - N[(N[(x * a), $MachinePrecision] / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\
\mathbf{if}\;t\_1 \leq \infty:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;\left(t \cdot b\right) \cdot \left(\frac{j \cdot c}{b} - \frac{x \cdot a}{b}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (+.f64 (-.f64 (*.f64 x (-.f64 (*.f64 y z) (*.f64 t a))) (*.f64 b (-.f64 (*.f64 c z) (*.f64 i a)))) (*.f64 j (-.f64 (*.f64 c t) (*.f64 i y)))) < +inf.0

    1. Initial program 90.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing

    if +inf.0 < (+.f64 (-.f64 (*.f64 x (-.f64 (*.f64 y z) (*.f64 t a))) (*.f64 b (-.f64 (*.f64 c z) (*.f64 i a)))) (*.f64 j (-.f64 (*.f64 c t) (*.f64 i y))))

    1. Initial program 0.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around -inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 2: 59.6% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := j \cdot \left(c \cdot t - i \cdot y\right)\\ t_2 := i \cdot \left(y \cdot j\right)\\ t_3 := i \cdot \left(b \cdot a\right)\\ t_4 := y \cdot z - a \cdot t\\ \mathbf{if}\;x \leq -7.2 \cdot 10^{+160}:\\ \;\;\;\;x \cdot t\_4\\ \mathbf{elif}\;x \leq -3.2 \cdot 10^{-96}:\\ \;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\ \mathbf{elif}\;x \leq -3.9 \cdot 10^{-151}:\\ \;\;\;\;c \cdot \left(t \cdot j - z \cdot b\right) - t\_2\\ \mathbf{elif}\;x \leq 10^{-276}:\\ \;\;\;\;a \cdot \left(i \cdot b\right) + t\_1\\ \mathbf{elif}\;x \leq 2.22 \cdot 10^{-153}:\\ \;\;\;\;\left(z \cdot c\right) \cdot \left(-b\right) + t\_1\\ \mathbf{elif}\;x \leq 1.6 \cdot 10^{-84}:\\ \;\;\;\;\left(0 - t\_2\right) - b \cdot \left(z \cdot c\right)\\ \mathbf{elif}\;x \leq 6 \cdot 10^{+75}:\\ \;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + t\_3\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(t\_4 + \frac{t\_3}{x}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* c t) (* i y))))
        (t_2 (* i (* y j)))
        (t_3 (* i (* b a)))
        (t_4 (- (* y z) (* a t))))
   (if (<= x -7.2e+160)
     (* x t_4)
     (if (<= x -3.2e-96)
       (+ (* y (* x z)) (* a (- (* b i) (* x t))))
       (if (<= x -3.9e-151)
         (- (* c (- (* t j) (* z b))) t_2)
         (if (<= x 1e-276)
           (+ (* a (* i b)) t_1)
           (if (<= x 2.22e-153)
             (+ (* (* z c) (- b)) t_1)
             (if (<= x 1.6e-84)
               (- (- 0.0 t_2) (* b (* z c)))
               (if (<= x 6e+75)
                 (+ (* t (- (* j c) (* x a))) t_3)
                 (* x (+ t_4 (/ t_3 x))))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((c * t) - (i * y));
	double t_2 = i * (y * j);
	double t_3 = i * (b * a);
	double t_4 = (y * z) - (a * t);
	double tmp;
	if (x <= -7.2e+160) {
		tmp = x * t_4;
	} else if (x <= -3.2e-96) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= -3.9e-151) {
		tmp = (c * ((t * j) - (z * b))) - t_2;
	} else if (x <= 1e-276) {
		tmp = (a * (i * b)) + t_1;
	} else if (x <= 2.22e-153) {
		tmp = ((z * c) * -b) + t_1;
	} else if (x <= 1.6e-84) {
		tmp = (0.0 - t_2) - (b * (z * c));
	} else if (x <= 6e+75) {
		tmp = (t * ((j * c) - (x * a))) + t_3;
	} else {
		tmp = x * (t_4 + (t_3 / x));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: t_4
    real(8) :: tmp
    t_1 = j * ((c * t) - (i * y))
    t_2 = i * (y * j)
    t_3 = i * (b * a)
    t_4 = (y * z) - (a * t)
    if (x <= (-7.2d+160)) then
        tmp = x * t_4
    else if (x <= (-3.2d-96)) then
        tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
    else if (x <= (-3.9d-151)) then
        tmp = (c * ((t * j) - (z * b))) - t_2
    else if (x <= 1d-276) then
        tmp = (a * (i * b)) + t_1
    else if (x <= 2.22d-153) then
        tmp = ((z * c) * -b) + t_1
    else if (x <= 1.6d-84) then
        tmp = (0.0d0 - t_2) - (b * (z * c))
    else if (x <= 6d+75) then
        tmp = (t * ((j * c) - (x * a))) + t_3
    else
        tmp = x * (t_4 + (t_3 / x))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((c * t) - (i * y));
	double t_2 = i * (y * j);
	double t_3 = i * (b * a);
	double t_4 = (y * z) - (a * t);
	double tmp;
	if (x <= -7.2e+160) {
		tmp = x * t_4;
	} else if (x <= -3.2e-96) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= -3.9e-151) {
		tmp = (c * ((t * j) - (z * b))) - t_2;
	} else if (x <= 1e-276) {
		tmp = (a * (i * b)) + t_1;
	} else if (x <= 2.22e-153) {
		tmp = ((z * c) * -b) + t_1;
	} else if (x <= 1.6e-84) {
		tmp = (0.0 - t_2) - (b * (z * c));
	} else if (x <= 6e+75) {
		tmp = (t * ((j * c) - (x * a))) + t_3;
	} else {
		tmp = x * (t_4 + (t_3 / x));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((c * t) - (i * y))
	t_2 = i * (y * j)
	t_3 = i * (b * a)
	t_4 = (y * z) - (a * t)
	tmp = 0
	if x <= -7.2e+160:
		tmp = x * t_4
	elif x <= -3.2e-96:
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
	elif x <= -3.9e-151:
		tmp = (c * ((t * j) - (z * b))) - t_2
	elif x <= 1e-276:
		tmp = (a * (i * b)) + t_1
	elif x <= 2.22e-153:
		tmp = ((z * c) * -b) + t_1
	elif x <= 1.6e-84:
		tmp = (0.0 - t_2) - (b * (z * c))
	elif x <= 6e+75:
		tmp = (t * ((j * c) - (x * a))) + t_3
	else:
		tmp = x * (t_4 + (t_3 / x))
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(c * t) - Float64(i * y)))
	t_2 = Float64(i * Float64(y * j))
	t_3 = Float64(i * Float64(b * a))
	t_4 = Float64(Float64(y * z) - Float64(a * t))
	tmp = 0.0
	if (x <= -7.2e+160)
		tmp = Float64(x * t_4);
	elseif (x <= -3.2e-96)
		tmp = Float64(Float64(y * Float64(x * z)) + Float64(a * Float64(Float64(b * i) - Float64(x * t))));
	elseif (x <= -3.9e-151)
		tmp = Float64(Float64(c * Float64(Float64(t * j) - Float64(z * b))) - t_2);
	elseif (x <= 1e-276)
		tmp = Float64(Float64(a * Float64(i * b)) + t_1);
	elseif (x <= 2.22e-153)
		tmp = Float64(Float64(Float64(z * c) * Float64(-b)) + t_1);
	elseif (x <= 1.6e-84)
		tmp = Float64(Float64(0.0 - t_2) - Float64(b * Float64(z * c)));
	elseif (x <= 6e+75)
		tmp = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + t_3);
	else
		tmp = Float64(x * Float64(t_4 + Float64(t_3 / x)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((c * t) - (i * y));
	t_2 = i * (y * j);
	t_3 = i * (b * a);
	t_4 = (y * z) - (a * t);
	tmp = 0.0;
	if (x <= -7.2e+160)
		tmp = x * t_4;
	elseif (x <= -3.2e-96)
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	elseif (x <= -3.9e-151)
		tmp = (c * ((t * j) - (z * b))) - t_2;
	elseif (x <= 1e-276)
		tmp = (a * (i * b)) + t_1;
	elseif (x <= 2.22e-153)
		tmp = ((z * c) * -b) + t_1;
	elseif (x <= 1.6e-84)
		tmp = (0.0 - t_2) - (b * (z * c));
	elseif (x <= 6e+75)
		tmp = (t * ((j * c) - (x * a))) + t_3;
	else
		tmp = x * (t_4 + (t_3 / x));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$4 = N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -7.2e+160], N[(x * t$95$4), $MachinePrecision], If[LessEqual[x, -3.2e-96], N[(N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision] + N[(a * N[(N[(b * i), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -3.9e-151], N[(N[(c * N[(N[(t * j), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - t$95$2), $MachinePrecision], If[LessEqual[x, 1e-276], N[(N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], If[LessEqual[x, 2.22e-153], N[(N[(N[(z * c), $MachinePrecision] * (-b)), $MachinePrecision] + t$95$1), $MachinePrecision], If[LessEqual[x, 1.6e-84], N[(N[(0.0 - t$95$2), $MachinePrecision] - N[(b * N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 6e+75], N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$3), $MachinePrecision], N[(x * N[(t$95$4 + N[(t$95$3 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := j \cdot \left(c \cdot t - i \cdot y\right)\\
t_2 := i \cdot \left(y \cdot j\right)\\
t_3 := i \cdot \left(b \cdot a\right)\\
t_4 := y \cdot z - a \cdot t\\
\mathbf{if}\;x \leq -7.2 \cdot 10^{+160}:\\
\;\;\;\;x \cdot t\_4\\

\mathbf{elif}\;x \leq -3.2 \cdot 10^{-96}:\\
\;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\

\mathbf{elif}\;x \leq -3.9 \cdot 10^{-151}:\\
\;\;\;\;c \cdot \left(t \cdot j - z \cdot b\right) - t\_2\\

\mathbf{elif}\;x \leq 10^{-276}:\\
\;\;\;\;a \cdot \left(i \cdot b\right) + t\_1\\

\mathbf{elif}\;x \leq 2.22 \cdot 10^{-153}:\\
\;\;\;\;\left(z \cdot c\right) \cdot \left(-b\right) + t\_1\\

\mathbf{elif}\;x \leq 1.6 \cdot 10^{-84}:\\
\;\;\;\;\left(0 - t\_2\right) - b \cdot \left(z \cdot c\right)\\

\mathbf{elif}\;x \leq 6 \cdot 10^{+75}:\\
\;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + t\_3\\

\mathbf{else}:\\
\;\;\;\;x \cdot \left(t\_4 + \frac{t\_3}{x}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 8 regimes
  2. if x < -7.20000000000000042e160

    1. Initial program 62.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -7.20000000000000042e160 < x < -3.20000000000000012e-96

    1. Initial program 79.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    8. Simplified0

      \[\leadsto expr\]

    if -3.20000000000000012e-96 < x < -3.90000000000000007e-151

    1. Initial program 64.6%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -3.90000000000000007e-151 < x < 1e-276

    1. Initial program 72.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 1e-276 < x < 2.2200000000000001e-153

    1. Initial program 66.6%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 2.2200000000000001e-153 < x < 1.6e-84

    1. Initial program 68.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.6e-84 < x < 6e75

    1. Initial program 84.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 6e75 < x

    1. Initial program 68.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around -inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 8 regimes into one program.
  4. Add Preprocessing

Alternative 3: 60.1% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := c \cdot \left(t \cdot j - z \cdot b\right) - i \cdot \left(y \cdot j\right)\\ t_2 := x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{if}\;x \leq -1.1 \cdot 10^{+162}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;x \leq -8 \cdot 10^{-103}:\\ \;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\ \mathbf{elif}\;x \leq -6.8 \cdot 10^{-149}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq -1.22 \cdot 10^{-151}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{elif}\;x \leq 1.9 \cdot 10^{-182}:\\ \;\;\;\;\left(z \cdot c\right) \cdot \left(-b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ \mathbf{elif}\;x \leq 1.65 \cdot 10^{-84}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq 7.2 \cdot 10^{+116}:\\ \;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + i \cdot \left(b \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (- (* c (- (* t j) (* z b))) (* i (* y j))))
        (t_2 (* x (- (* y z) (* a t)))))
   (if (<= x -1.1e+162)
     t_2
     (if (<= x -8e-103)
       (+ (* y (* x z)) (* a (- (* b i) (* x t))))
       (if (<= x -6.8e-149)
         t_1
         (if (<= x -1.22e-151)
           (* a (- (* i b) (* x t)))
           (if (<= x 1.9e-182)
             (+ (* (* z c) (- b)) (* j (- (* c t) (* i y))))
             (if (<= x 1.65e-84)
               t_1
               (if (<= x 7.2e+116)
                 (+ (* t (- (* j c) (* x a))) (* i (* b a)))
                 t_2)))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (c * ((t * j) - (z * b))) - (i * (y * j));
	double t_2 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -1.1e+162) {
		tmp = t_2;
	} else if (x <= -8e-103) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= -6.8e-149) {
		tmp = t_1;
	} else if (x <= -1.22e-151) {
		tmp = a * ((i * b) - (x * t));
	} else if (x <= 1.9e-182) {
		tmp = ((z * c) * -b) + (j * ((c * t) - (i * y)));
	} else if (x <= 1.65e-84) {
		tmp = t_1;
	} else if (x <= 7.2e+116) {
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (c * ((t * j) - (z * b))) - (i * (y * j))
    t_2 = x * ((y * z) - (a * t))
    if (x <= (-1.1d+162)) then
        tmp = t_2
    else if (x <= (-8d-103)) then
        tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
    else if (x <= (-6.8d-149)) then
        tmp = t_1
    else if (x <= (-1.22d-151)) then
        tmp = a * ((i * b) - (x * t))
    else if (x <= 1.9d-182) then
        tmp = ((z * c) * -b) + (j * ((c * t) - (i * y)))
    else if (x <= 1.65d-84) then
        tmp = t_1
    else if (x <= 7.2d+116) then
        tmp = (t * ((j * c) - (x * a))) + (i * (b * a))
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (c * ((t * j) - (z * b))) - (i * (y * j));
	double t_2 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -1.1e+162) {
		tmp = t_2;
	} else if (x <= -8e-103) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= -6.8e-149) {
		tmp = t_1;
	} else if (x <= -1.22e-151) {
		tmp = a * ((i * b) - (x * t));
	} else if (x <= 1.9e-182) {
		tmp = ((z * c) * -b) + (j * ((c * t) - (i * y)));
	} else if (x <= 1.65e-84) {
		tmp = t_1;
	} else if (x <= 7.2e+116) {
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = (c * ((t * j) - (z * b))) - (i * (y * j))
	t_2 = x * ((y * z) - (a * t))
	tmp = 0
	if x <= -1.1e+162:
		tmp = t_2
	elif x <= -8e-103:
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
	elif x <= -6.8e-149:
		tmp = t_1
	elif x <= -1.22e-151:
		tmp = a * ((i * b) - (x * t))
	elif x <= 1.9e-182:
		tmp = ((z * c) * -b) + (j * ((c * t) - (i * y)))
	elif x <= 1.65e-84:
		tmp = t_1
	elif x <= 7.2e+116:
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a))
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(Float64(c * Float64(Float64(t * j) - Float64(z * b))) - Float64(i * Float64(y * j)))
	t_2 = Float64(x * Float64(Float64(y * z) - Float64(a * t)))
	tmp = 0.0
	if (x <= -1.1e+162)
		tmp = t_2;
	elseif (x <= -8e-103)
		tmp = Float64(Float64(y * Float64(x * z)) + Float64(a * Float64(Float64(b * i) - Float64(x * t))));
	elseif (x <= -6.8e-149)
		tmp = t_1;
	elseif (x <= -1.22e-151)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	elseif (x <= 1.9e-182)
		tmp = Float64(Float64(Float64(z * c) * Float64(-b)) + Float64(j * Float64(Float64(c * t) - Float64(i * y))));
	elseif (x <= 1.65e-84)
		tmp = t_1;
	elseif (x <= 7.2e+116)
		tmp = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + Float64(i * Float64(b * a)));
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = (c * ((t * j) - (z * b))) - (i * (y * j));
	t_2 = x * ((y * z) - (a * t));
	tmp = 0.0;
	if (x <= -1.1e+162)
		tmp = t_2;
	elseif (x <= -8e-103)
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	elseif (x <= -6.8e-149)
		tmp = t_1;
	elseif (x <= -1.22e-151)
		tmp = a * ((i * b) - (x * t));
	elseif (x <= 1.9e-182)
		tmp = ((z * c) * -b) + (j * ((c * t) - (i * y)));
	elseif (x <= 1.65e-84)
		tmp = t_1;
	elseif (x <= 7.2e+116)
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(N[(c * N[(N[(t * j), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -1.1e+162], t$95$2, If[LessEqual[x, -8e-103], N[(N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision] + N[(a * N[(N[(b * i), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -6.8e-149], t$95$1, If[LessEqual[x, -1.22e-151], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.9e-182], N[(N[(N[(z * c), $MachinePrecision] * (-b)), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.65e-84], t$95$1, If[LessEqual[x, 7.2e+116], N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$2]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := c \cdot \left(t \cdot j - z \cdot b\right) - i \cdot \left(y \cdot j\right)\\
t_2 := x \cdot \left(y \cdot z - a \cdot t\right)\\
\mathbf{if}\;x \leq -1.1 \cdot 10^{+162}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;x \leq -8 \cdot 10^{-103}:\\
\;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\

\mathbf{elif}\;x \leq -6.8 \cdot 10^{-149}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq -1.22 \cdot 10^{-151}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{elif}\;x \leq 1.9 \cdot 10^{-182}:\\
\;\;\;\;\left(z \cdot c\right) \cdot \left(-b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\

\mathbf{elif}\;x \leq 1.65 \cdot 10^{-84}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq 7.2 \cdot 10^{+116}:\\
\;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + i \cdot \left(b \cdot a\right)\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 6 regimes
  2. if x < -1.1000000000000001e162 or 7.19999999999999941e116 < x

    1. Initial program 65.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.1000000000000001e162 < x < -7.99999999999999966e-103

    1. Initial program 79.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    8. Simplified0

      \[\leadsto expr\]

    if -7.99999999999999966e-103 < x < -6.7999999999999998e-149 or 1.9000000000000002e-182 < x < 1.64999999999999992e-84

    1. Initial program 70.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -6.7999999999999998e-149 < x < -1.21999999999999997e-151

    1. Initial program 3.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.21999999999999997e-151 < x < 1.9000000000000002e-182

    1. Initial program 71.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 1.64999999999999992e-84 < x < 7.19999999999999941e116

    1. Initial program 84.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 6 regimes into one program.
  4. Add Preprocessing

Alternative 4: 56.5% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ t_2 := x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{if}\;x \leq -6.2 \cdot 10^{+124}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;x \leq -3.2 \cdot 10^{+22}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq -2.2 \cdot 10^{-29}:\\ \;\;\;\;y \cdot \left(x \cdot z - \frac{x \cdot \left(a \cdot t\right)}{y}\right)\\ \mathbf{elif}\;x \leq -5.1 \cdot 10^{-84}:\\ \;\;\;\;y \cdot \left(x \cdot z - j \cdot i\right)\\ \mathbf{elif}\;x \leq 3.2 \cdot 10^{-228}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq 1.6 \cdot 10^{-84}:\\ \;\;\;\;\left(0 - i \cdot \left(y \cdot j\right)\right) - b \cdot \left(z \cdot c\right)\\ \mathbf{elif}\;x \leq 1.02 \cdot 10^{+116}:\\ \;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + i \cdot \left(b \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (+ (* a (* i b)) (* j (- (* c t) (* i y)))))
        (t_2 (* x (- (* y z) (* a t)))))
   (if (<= x -6.2e+124)
     t_2
     (if (<= x -3.2e+22)
       t_1
       (if (<= x -2.2e-29)
         (* y (- (* x z) (/ (* x (* a t)) y)))
         (if (<= x -5.1e-84)
           (* y (- (* x z) (* j i)))
           (if (<= x 3.2e-228)
             t_1
             (if (<= x 1.6e-84)
               (- (- 0.0 (* i (* y j))) (* b (* z c)))
               (if (<= x 1.02e+116)
                 (+ (* t (- (* j c) (* x a))) (* i (* b a)))
                 t_2)))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	double t_2 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -6.2e+124) {
		tmp = t_2;
	} else if (x <= -3.2e+22) {
		tmp = t_1;
	} else if (x <= -2.2e-29) {
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	} else if (x <= -5.1e-84) {
		tmp = y * ((x * z) - (j * i));
	} else if (x <= 3.2e-228) {
		tmp = t_1;
	} else if (x <= 1.6e-84) {
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	} else if (x <= 1.02e+116) {
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)))
    t_2 = x * ((y * z) - (a * t))
    if (x <= (-6.2d+124)) then
        tmp = t_2
    else if (x <= (-3.2d+22)) then
        tmp = t_1
    else if (x <= (-2.2d-29)) then
        tmp = y * ((x * z) - ((x * (a * t)) / y))
    else if (x <= (-5.1d-84)) then
        tmp = y * ((x * z) - (j * i))
    else if (x <= 3.2d-228) then
        tmp = t_1
    else if (x <= 1.6d-84) then
        tmp = (0.0d0 - (i * (y * j))) - (b * (z * c))
    else if (x <= 1.02d+116) then
        tmp = (t * ((j * c) - (x * a))) + (i * (b * a))
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	double t_2 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -6.2e+124) {
		tmp = t_2;
	} else if (x <= -3.2e+22) {
		tmp = t_1;
	} else if (x <= -2.2e-29) {
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	} else if (x <= -5.1e-84) {
		tmp = y * ((x * z) - (j * i));
	} else if (x <= 3.2e-228) {
		tmp = t_1;
	} else if (x <= 1.6e-84) {
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	} else if (x <= 1.02e+116) {
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)))
	t_2 = x * ((y * z) - (a * t))
	tmp = 0
	if x <= -6.2e+124:
		tmp = t_2
	elif x <= -3.2e+22:
		tmp = t_1
	elif x <= -2.2e-29:
		tmp = y * ((x * z) - ((x * (a * t)) / y))
	elif x <= -5.1e-84:
		tmp = y * ((x * z) - (j * i))
	elif x <= 3.2e-228:
		tmp = t_1
	elif x <= 1.6e-84:
		tmp = (0.0 - (i * (y * j))) - (b * (z * c))
	elif x <= 1.02e+116:
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a))
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(Float64(a * Float64(i * b)) + Float64(j * Float64(Float64(c * t) - Float64(i * y))))
	t_2 = Float64(x * Float64(Float64(y * z) - Float64(a * t)))
	tmp = 0.0
	if (x <= -6.2e+124)
		tmp = t_2;
	elseif (x <= -3.2e+22)
		tmp = t_1;
	elseif (x <= -2.2e-29)
		tmp = Float64(y * Float64(Float64(x * z) - Float64(Float64(x * Float64(a * t)) / y)));
	elseif (x <= -5.1e-84)
		tmp = Float64(y * Float64(Float64(x * z) - Float64(j * i)));
	elseif (x <= 3.2e-228)
		tmp = t_1;
	elseif (x <= 1.6e-84)
		tmp = Float64(Float64(0.0 - Float64(i * Float64(y * j))) - Float64(b * Float64(z * c)));
	elseif (x <= 1.02e+116)
		tmp = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + Float64(i * Float64(b * a)));
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	t_2 = x * ((y * z) - (a * t));
	tmp = 0.0;
	if (x <= -6.2e+124)
		tmp = t_2;
	elseif (x <= -3.2e+22)
		tmp = t_1;
	elseif (x <= -2.2e-29)
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	elseif (x <= -5.1e-84)
		tmp = y * ((x * z) - (j * i));
	elseif (x <= 3.2e-228)
		tmp = t_1;
	elseif (x <= 1.6e-84)
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	elseif (x <= 1.02e+116)
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -6.2e+124], t$95$2, If[LessEqual[x, -3.2e+22], t$95$1, If[LessEqual[x, -2.2e-29], N[(y * N[(N[(x * z), $MachinePrecision] - N[(N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -5.1e-84], N[(y * N[(N[(x * z), $MachinePrecision] - N[(j * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 3.2e-228], t$95$1, If[LessEqual[x, 1.6e-84], N[(N[(0.0 - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.02e+116], N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$2]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\
t_2 := x \cdot \left(y \cdot z - a \cdot t\right)\\
\mathbf{if}\;x \leq -6.2 \cdot 10^{+124}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;x \leq -3.2 \cdot 10^{+22}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq -2.2 \cdot 10^{-29}:\\
\;\;\;\;y \cdot \left(x \cdot z - \frac{x \cdot \left(a \cdot t\right)}{y}\right)\\

\mathbf{elif}\;x \leq -5.1 \cdot 10^{-84}:\\
\;\;\;\;y \cdot \left(x \cdot z - j \cdot i\right)\\

\mathbf{elif}\;x \leq 3.2 \cdot 10^{-228}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq 1.6 \cdot 10^{-84}:\\
\;\;\;\;\left(0 - i \cdot \left(y \cdot j\right)\right) - b \cdot \left(z \cdot c\right)\\

\mathbf{elif}\;x \leq 1.02 \cdot 10^{+116}:\\
\;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + i \cdot \left(b \cdot a\right)\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 6 regimes
  2. if x < -6.2000000000000004e124 or 1.0199999999999999e116 < x

    1. Initial program 67.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -6.2000000000000004e124 < x < -3.2e22 or -5.0999999999999996e-84 < x < 3.20000000000000022e-228

    1. Initial program 73.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -3.2e22 < x < -2.1999999999999999e-29

    1. Initial program 87.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -2.1999999999999999e-29 < x < -5.0999999999999996e-84

    1. Initial program 63.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 3.20000000000000022e-228 < x < 1.6e-84

    1. Initial program 69.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.6e-84 < x < 1.0199999999999999e116

    1. Initial program 84.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 6 regimes into one program.
  4. Add Preprocessing

Alternative 5: 56.2% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ t_2 := x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{if}\;x \leq -3 \cdot 10^{+126}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;x \leq -1.32 \cdot 10^{+22}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq -4.2 \cdot 10^{-33}:\\ \;\;\;\;y \cdot \left(x \cdot z - \frac{x \cdot \left(a \cdot t\right)}{y}\right)\\ \mathbf{elif}\;x \leq -6 \cdot 10^{-87}:\\ \;\;\;\;y \cdot \left(x \cdot z - j \cdot i\right)\\ \mathbf{elif}\;x \leq 1.04 \cdot 10^{-221}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq 1.22 \cdot 10^{-80}:\\ \;\;\;\;\left(0 - i \cdot \left(y \cdot j\right)\right) - b \cdot \left(z \cdot c\right)\\ \mathbf{elif}\;x \leq 1.22 \cdot 10^{+100}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (+ (* a (* i b)) (* j (- (* c t) (* i y)))))
        (t_2 (* x (- (* y z) (* a t)))))
   (if (<= x -3e+126)
     t_2
     (if (<= x -1.32e+22)
       t_1
       (if (<= x -4.2e-33)
         (* y (- (* x z) (/ (* x (* a t)) y)))
         (if (<= x -6e-87)
           (* y (- (* x z) (* j i)))
           (if (<= x 1.04e-221)
             t_1
             (if (<= x 1.22e-80)
               (- (- 0.0 (* i (* y j))) (* b (* z c)))
               (if (<= x 1.22e+100) t_1 t_2)))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	double t_2 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -3e+126) {
		tmp = t_2;
	} else if (x <= -1.32e+22) {
		tmp = t_1;
	} else if (x <= -4.2e-33) {
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	} else if (x <= -6e-87) {
		tmp = y * ((x * z) - (j * i));
	} else if (x <= 1.04e-221) {
		tmp = t_1;
	} else if (x <= 1.22e-80) {
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	} else if (x <= 1.22e+100) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)))
    t_2 = x * ((y * z) - (a * t))
    if (x <= (-3d+126)) then
        tmp = t_2
    else if (x <= (-1.32d+22)) then
        tmp = t_1
    else if (x <= (-4.2d-33)) then
        tmp = y * ((x * z) - ((x * (a * t)) / y))
    else if (x <= (-6d-87)) then
        tmp = y * ((x * z) - (j * i))
    else if (x <= 1.04d-221) then
        tmp = t_1
    else if (x <= 1.22d-80) then
        tmp = (0.0d0 - (i * (y * j))) - (b * (z * c))
    else if (x <= 1.22d+100) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	double t_2 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -3e+126) {
		tmp = t_2;
	} else if (x <= -1.32e+22) {
		tmp = t_1;
	} else if (x <= -4.2e-33) {
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	} else if (x <= -6e-87) {
		tmp = y * ((x * z) - (j * i));
	} else if (x <= 1.04e-221) {
		tmp = t_1;
	} else if (x <= 1.22e-80) {
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	} else if (x <= 1.22e+100) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)))
	t_2 = x * ((y * z) - (a * t))
	tmp = 0
	if x <= -3e+126:
		tmp = t_2
	elif x <= -1.32e+22:
		tmp = t_1
	elif x <= -4.2e-33:
		tmp = y * ((x * z) - ((x * (a * t)) / y))
	elif x <= -6e-87:
		tmp = y * ((x * z) - (j * i))
	elif x <= 1.04e-221:
		tmp = t_1
	elif x <= 1.22e-80:
		tmp = (0.0 - (i * (y * j))) - (b * (z * c))
	elif x <= 1.22e+100:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(Float64(a * Float64(i * b)) + Float64(j * Float64(Float64(c * t) - Float64(i * y))))
	t_2 = Float64(x * Float64(Float64(y * z) - Float64(a * t)))
	tmp = 0.0
	if (x <= -3e+126)
		tmp = t_2;
	elseif (x <= -1.32e+22)
		tmp = t_1;
	elseif (x <= -4.2e-33)
		tmp = Float64(y * Float64(Float64(x * z) - Float64(Float64(x * Float64(a * t)) / y)));
	elseif (x <= -6e-87)
		tmp = Float64(y * Float64(Float64(x * z) - Float64(j * i)));
	elseif (x <= 1.04e-221)
		tmp = t_1;
	elseif (x <= 1.22e-80)
		tmp = Float64(Float64(0.0 - Float64(i * Float64(y * j))) - Float64(b * Float64(z * c)));
	elseif (x <= 1.22e+100)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	t_2 = x * ((y * z) - (a * t));
	tmp = 0.0;
	if (x <= -3e+126)
		tmp = t_2;
	elseif (x <= -1.32e+22)
		tmp = t_1;
	elseif (x <= -4.2e-33)
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	elseif (x <= -6e-87)
		tmp = y * ((x * z) - (j * i));
	elseif (x <= 1.04e-221)
		tmp = t_1;
	elseif (x <= 1.22e-80)
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	elseif (x <= 1.22e+100)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -3e+126], t$95$2, If[LessEqual[x, -1.32e+22], t$95$1, If[LessEqual[x, -4.2e-33], N[(y * N[(N[(x * z), $MachinePrecision] - N[(N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -6e-87], N[(y * N[(N[(x * z), $MachinePrecision] - N[(j * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.04e-221], t$95$1, If[LessEqual[x, 1.22e-80], N[(N[(0.0 - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.22e+100], t$95$1, t$95$2]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\
t_2 := x \cdot \left(y \cdot z - a \cdot t\right)\\
\mathbf{if}\;x \leq -3 \cdot 10^{+126}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;x \leq -1.32 \cdot 10^{+22}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq -4.2 \cdot 10^{-33}:\\
\;\;\;\;y \cdot \left(x \cdot z - \frac{x \cdot \left(a \cdot t\right)}{y}\right)\\

\mathbf{elif}\;x \leq -6 \cdot 10^{-87}:\\
\;\;\;\;y \cdot \left(x \cdot z - j \cdot i\right)\\

\mathbf{elif}\;x \leq 1.04 \cdot 10^{-221}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq 1.22 \cdot 10^{-80}:\\
\;\;\;\;\left(0 - i \cdot \left(y \cdot j\right)\right) - b \cdot \left(z \cdot c\right)\\

\mathbf{elif}\;x \leq 1.22 \cdot 10^{+100}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if x < -3.0000000000000002e126 or 1.21999999999999995e100 < x

    1. Initial program 67.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -3.0000000000000002e126 < x < -1.32e22 or -6.00000000000000033e-87 < x < 1.0399999999999999e-221 or 1.22e-80 < x < 1.21999999999999995e100

    1. Initial program 76.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.32e22 < x < -4.2e-33

    1. Initial program 87.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -4.2e-33 < x < -6.00000000000000033e-87

    1. Initial program 63.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 1.0399999999999999e-221 < x < 1.22e-80

    1. Initial program 71.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 6: 67.6% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(a \cdot i - z \cdot c\right)\\ t_2 := y \cdot z - a \cdot t\\ t_3 := x \cdot t\_2\\ t_4 := \left(t\_3 + a \cdot \left(i \cdot b\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ \mathbf{if}\;x \leq -3.55 \cdot 10^{+134}:\\ \;\;\;\;x \cdot \left(t\_2 + \frac{i \cdot \left(b \cdot a\right)}{x}\right)\\ \mathbf{elif}\;x \leq -6.3 \cdot 10^{-143}:\\ \;\;\;\;t\_4\\ \mathbf{elif}\;x \leq 2.3 \cdot 10^{-239}:\\ \;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + t\_1\\ \mathbf{elif}\;x \leq 1.55 \cdot 10^{-80}:\\ \;\;\;\;y \cdot \left(x \cdot z - i \cdot j\right) + c \cdot \left(j \cdot t - z \cdot b\right)\\ \mathbf{elif}\;x \leq 5.8 \cdot 10^{+171}:\\ \;\;\;\;t\_4\\ \mathbf{else}:\\ \;\;\;\;t\_3 + t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (- (* a i) (* z c))))
        (t_2 (- (* y z) (* a t)))
        (t_3 (* x t_2))
        (t_4 (+ (+ t_3 (* a (* i b))) (* j (- (* c t) (* i y))))))
   (if (<= x -3.55e+134)
     (* x (+ t_2 (/ (* i (* b a)) x)))
     (if (<= x -6.3e-143)
       t_4
       (if (<= x 2.3e-239)
         (+ (* t (- (* j c) (* x a))) t_1)
         (if (<= x 1.55e-80)
           (+ (* y (- (* x z) (* i j))) (* c (- (* j t) (* z b))))
           (if (<= x 5.8e+171) t_4 (+ t_3 t_1))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((a * i) - (z * c));
	double t_2 = (y * z) - (a * t);
	double t_3 = x * t_2;
	double t_4 = (t_3 + (a * (i * b))) + (j * ((c * t) - (i * y)));
	double tmp;
	if (x <= -3.55e+134) {
		tmp = x * (t_2 + ((i * (b * a)) / x));
	} else if (x <= -6.3e-143) {
		tmp = t_4;
	} else if (x <= 2.3e-239) {
		tmp = (t * ((j * c) - (x * a))) + t_1;
	} else if (x <= 1.55e-80) {
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	} else if (x <= 5.8e+171) {
		tmp = t_4;
	} else {
		tmp = t_3 + t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: t_4
    real(8) :: tmp
    t_1 = b * ((a * i) - (z * c))
    t_2 = (y * z) - (a * t)
    t_3 = x * t_2
    t_4 = (t_3 + (a * (i * b))) + (j * ((c * t) - (i * y)))
    if (x <= (-3.55d+134)) then
        tmp = x * (t_2 + ((i * (b * a)) / x))
    else if (x <= (-6.3d-143)) then
        tmp = t_4
    else if (x <= 2.3d-239) then
        tmp = (t * ((j * c) - (x * a))) + t_1
    else if (x <= 1.55d-80) then
        tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)))
    else if (x <= 5.8d+171) then
        tmp = t_4
    else
        tmp = t_3 + t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((a * i) - (z * c));
	double t_2 = (y * z) - (a * t);
	double t_3 = x * t_2;
	double t_4 = (t_3 + (a * (i * b))) + (j * ((c * t) - (i * y)));
	double tmp;
	if (x <= -3.55e+134) {
		tmp = x * (t_2 + ((i * (b * a)) / x));
	} else if (x <= -6.3e-143) {
		tmp = t_4;
	} else if (x <= 2.3e-239) {
		tmp = (t * ((j * c) - (x * a))) + t_1;
	} else if (x <= 1.55e-80) {
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	} else if (x <= 5.8e+171) {
		tmp = t_4;
	} else {
		tmp = t_3 + t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * ((a * i) - (z * c))
	t_2 = (y * z) - (a * t)
	t_3 = x * t_2
	t_4 = (t_3 + (a * (i * b))) + (j * ((c * t) - (i * y)))
	tmp = 0
	if x <= -3.55e+134:
		tmp = x * (t_2 + ((i * (b * a)) / x))
	elif x <= -6.3e-143:
		tmp = t_4
	elif x <= 2.3e-239:
		tmp = (t * ((j * c) - (x * a))) + t_1
	elif x <= 1.55e-80:
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)))
	elif x <= 5.8e+171:
		tmp = t_4
	else:
		tmp = t_3 + t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(Float64(a * i) - Float64(z * c)))
	t_2 = Float64(Float64(y * z) - Float64(a * t))
	t_3 = Float64(x * t_2)
	t_4 = Float64(Float64(t_3 + Float64(a * Float64(i * b))) + Float64(j * Float64(Float64(c * t) - Float64(i * y))))
	tmp = 0.0
	if (x <= -3.55e+134)
		tmp = Float64(x * Float64(t_2 + Float64(Float64(i * Float64(b * a)) / x)));
	elseif (x <= -6.3e-143)
		tmp = t_4;
	elseif (x <= 2.3e-239)
		tmp = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + t_1);
	elseif (x <= 1.55e-80)
		tmp = Float64(Float64(y * Float64(Float64(x * z) - Float64(i * j))) + Float64(c * Float64(Float64(j * t) - Float64(z * b))));
	elseif (x <= 5.8e+171)
		tmp = t_4;
	else
		tmp = Float64(t_3 + t_1);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * ((a * i) - (z * c));
	t_2 = (y * z) - (a * t);
	t_3 = x * t_2;
	t_4 = (t_3 + (a * (i * b))) + (j * ((c * t) - (i * y)));
	tmp = 0.0;
	if (x <= -3.55e+134)
		tmp = x * (t_2 + ((i * (b * a)) / x));
	elseif (x <= -6.3e-143)
		tmp = t_4;
	elseif (x <= 2.3e-239)
		tmp = (t * ((j * c) - (x * a))) + t_1;
	elseif (x <= 1.55e-80)
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	elseif (x <= 5.8e+171)
		tmp = t_4;
	else
		tmp = t_3 + t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x * t$95$2), $MachinePrecision]}, Block[{t$95$4 = N[(N[(t$95$3 + N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -3.55e+134], N[(x * N[(t$95$2 + N[(N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -6.3e-143], t$95$4, If[LessEqual[x, 2.3e-239], N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], If[LessEqual[x, 1.55e-80], N[(N[(y * N[(N[(x * z), $MachinePrecision] - N[(i * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(c * N[(N[(j * t), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 5.8e+171], t$95$4, N[(t$95$3 + t$95$1), $MachinePrecision]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b \cdot \left(a \cdot i - z \cdot c\right)\\
t_2 := y \cdot z - a \cdot t\\
t_3 := x \cdot t\_2\\
t_4 := \left(t\_3 + a \cdot \left(i \cdot b\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\
\mathbf{if}\;x \leq -3.55 \cdot 10^{+134}:\\
\;\;\;\;x \cdot \left(t\_2 + \frac{i \cdot \left(b \cdot a\right)}{x}\right)\\

\mathbf{elif}\;x \leq -6.3 \cdot 10^{-143}:\\
\;\;\;\;t\_4\\

\mathbf{elif}\;x \leq 2.3 \cdot 10^{-239}:\\
\;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + t\_1\\

\mathbf{elif}\;x \leq 1.55 \cdot 10^{-80}:\\
\;\;\;\;y \cdot \left(x \cdot z - i \cdot j\right) + c \cdot \left(j \cdot t - z \cdot b\right)\\

\mathbf{elif}\;x \leq 5.8 \cdot 10^{+171}:\\
\;\;\;\;t\_4\\

\mathbf{else}:\\
\;\;\;\;t\_3 + t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if x < -3.54999999999999995e134

    1. Initial program 64.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around -inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -3.54999999999999995e134 < x < -6.30000000000000037e-143 or 1.55000000000000008e-80 < x < 5.79999999999999969e171

    1. Initial program 78.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -6.30000000000000037e-143 < x < 2.2999999999999999e-239

    1. Initial program 69.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 2.2999999999999999e-239 < x < 1.55000000000000008e-80

    1. Initial program 70.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 5.79999999999999969e171 < x

    1. Initial program 68.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 7: 62.3% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \left(j \cdot c - x \cdot a\right) + b \cdot \left(a \cdot i - z \cdot c\right)\\ t_2 := y \cdot z - a \cdot t\\ \mathbf{if}\;x \leq -2.6 \cdot 10^{+161}:\\ \;\;\;\;x \cdot t\_2\\ \mathbf{elif}\;x \leq -1.42 \cdot 10^{-96}:\\ \;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\ \mathbf{elif}\;x \leq -1.25 \cdot 10^{-143}:\\ \;\;\;\;\left(0 - x \cdot \left(a \cdot t\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ \mathbf{elif}\;x \leq 6.2 \cdot 10^{-245}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq 1.6 \cdot 10^{-84}:\\ \;\;\;\;c \cdot \left(t \cdot j - z \cdot b\right) - i \cdot \left(y \cdot j\right)\\ \mathbf{elif}\;x \leq 6.6 \cdot 10^{+71}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(t\_2 + \frac{i \cdot \left(b \cdot a\right)}{x}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (+ (* t (- (* j c) (* x a))) (* b (- (* a i) (* z c)))))
        (t_2 (- (* y z) (* a t))))
   (if (<= x -2.6e+161)
     (* x t_2)
     (if (<= x -1.42e-96)
       (+ (* y (* x z)) (* a (- (* b i) (* x t))))
       (if (<= x -1.25e-143)
         (+ (- 0.0 (* x (* a t))) (* j (- (* c t) (* i y))))
         (if (<= x 6.2e-245)
           t_1
           (if (<= x 1.6e-84)
             (- (* c (- (* t j) (* z b))) (* i (* y j)))
             (if (<= x 6.6e+71) t_1 (* x (+ t_2 (/ (* i (* b a)) x)))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (t * ((j * c) - (x * a))) + (b * ((a * i) - (z * c)));
	double t_2 = (y * z) - (a * t);
	double tmp;
	if (x <= -2.6e+161) {
		tmp = x * t_2;
	} else if (x <= -1.42e-96) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= -1.25e-143) {
		tmp = (0.0 - (x * (a * t))) + (j * ((c * t) - (i * y)));
	} else if (x <= 6.2e-245) {
		tmp = t_1;
	} else if (x <= 1.6e-84) {
		tmp = (c * ((t * j) - (z * b))) - (i * (y * j));
	} else if (x <= 6.6e+71) {
		tmp = t_1;
	} else {
		tmp = x * (t_2 + ((i * (b * a)) / x));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (t * ((j * c) - (x * a))) + (b * ((a * i) - (z * c)))
    t_2 = (y * z) - (a * t)
    if (x <= (-2.6d+161)) then
        tmp = x * t_2
    else if (x <= (-1.42d-96)) then
        tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
    else if (x <= (-1.25d-143)) then
        tmp = (0.0d0 - (x * (a * t))) + (j * ((c * t) - (i * y)))
    else if (x <= 6.2d-245) then
        tmp = t_1
    else if (x <= 1.6d-84) then
        tmp = (c * ((t * j) - (z * b))) - (i * (y * j))
    else if (x <= 6.6d+71) then
        tmp = t_1
    else
        tmp = x * (t_2 + ((i * (b * a)) / x))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (t * ((j * c) - (x * a))) + (b * ((a * i) - (z * c)));
	double t_2 = (y * z) - (a * t);
	double tmp;
	if (x <= -2.6e+161) {
		tmp = x * t_2;
	} else if (x <= -1.42e-96) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= -1.25e-143) {
		tmp = (0.0 - (x * (a * t))) + (j * ((c * t) - (i * y)));
	} else if (x <= 6.2e-245) {
		tmp = t_1;
	} else if (x <= 1.6e-84) {
		tmp = (c * ((t * j) - (z * b))) - (i * (y * j));
	} else if (x <= 6.6e+71) {
		tmp = t_1;
	} else {
		tmp = x * (t_2 + ((i * (b * a)) / x));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = (t * ((j * c) - (x * a))) + (b * ((a * i) - (z * c)))
	t_2 = (y * z) - (a * t)
	tmp = 0
	if x <= -2.6e+161:
		tmp = x * t_2
	elif x <= -1.42e-96:
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
	elif x <= -1.25e-143:
		tmp = (0.0 - (x * (a * t))) + (j * ((c * t) - (i * y)))
	elif x <= 6.2e-245:
		tmp = t_1
	elif x <= 1.6e-84:
		tmp = (c * ((t * j) - (z * b))) - (i * (y * j))
	elif x <= 6.6e+71:
		tmp = t_1
	else:
		tmp = x * (t_2 + ((i * (b * a)) / x))
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + Float64(b * Float64(Float64(a * i) - Float64(z * c))))
	t_2 = Float64(Float64(y * z) - Float64(a * t))
	tmp = 0.0
	if (x <= -2.6e+161)
		tmp = Float64(x * t_2);
	elseif (x <= -1.42e-96)
		tmp = Float64(Float64(y * Float64(x * z)) + Float64(a * Float64(Float64(b * i) - Float64(x * t))));
	elseif (x <= -1.25e-143)
		tmp = Float64(Float64(0.0 - Float64(x * Float64(a * t))) + Float64(j * Float64(Float64(c * t) - Float64(i * y))));
	elseif (x <= 6.2e-245)
		tmp = t_1;
	elseif (x <= 1.6e-84)
		tmp = Float64(Float64(c * Float64(Float64(t * j) - Float64(z * b))) - Float64(i * Float64(y * j)));
	elseif (x <= 6.6e+71)
		tmp = t_1;
	else
		tmp = Float64(x * Float64(t_2 + Float64(Float64(i * Float64(b * a)) / x)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = (t * ((j * c) - (x * a))) + (b * ((a * i) - (z * c)));
	t_2 = (y * z) - (a * t);
	tmp = 0.0;
	if (x <= -2.6e+161)
		tmp = x * t_2;
	elseif (x <= -1.42e-96)
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	elseif (x <= -1.25e-143)
		tmp = (0.0 - (x * (a * t))) + (j * ((c * t) - (i * y)));
	elseif (x <= 6.2e-245)
		tmp = t_1;
	elseif (x <= 1.6e-84)
		tmp = (c * ((t * j) - (z * b))) - (i * (y * j));
	elseif (x <= 6.6e+71)
		tmp = t_1;
	else
		tmp = x * (t_2 + ((i * (b * a)) / x));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -2.6e+161], N[(x * t$95$2), $MachinePrecision], If[LessEqual[x, -1.42e-96], N[(N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision] + N[(a * N[(N[(b * i), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -1.25e-143], N[(N[(0.0 - N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 6.2e-245], t$95$1, If[LessEqual[x, 1.6e-84], N[(N[(c * N[(N[(t * j), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 6.6e+71], t$95$1, N[(x * N[(t$95$2 + N[(N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \left(j \cdot c - x \cdot a\right) + b \cdot \left(a \cdot i - z \cdot c\right)\\
t_2 := y \cdot z - a \cdot t\\
\mathbf{if}\;x \leq -2.6 \cdot 10^{+161}:\\
\;\;\;\;x \cdot t\_2\\

\mathbf{elif}\;x \leq -1.42 \cdot 10^{-96}:\\
\;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\

\mathbf{elif}\;x \leq -1.25 \cdot 10^{-143}:\\
\;\;\;\;\left(0 - x \cdot \left(a \cdot t\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\

\mathbf{elif}\;x \leq 6.2 \cdot 10^{-245}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq 1.6 \cdot 10^{-84}:\\
\;\;\;\;c \cdot \left(t \cdot j - z \cdot b\right) - i \cdot \left(y \cdot j\right)\\

\mathbf{elif}\;x \leq 6.6 \cdot 10^{+71}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;x \cdot \left(t\_2 + \frac{i \cdot \left(b \cdot a\right)}{x}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 6 regimes
  2. if x < -2.5999999999999998e161

    1. Initial program 62.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -2.5999999999999998e161 < x < -1.42000000000000003e-96

    1. Initial program 79.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    8. Simplified0

      \[\leadsto expr\]

    if -1.42000000000000003e-96 < x < -1.2500000000000001e-143

    1. Initial program 74.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.2500000000000001e-143 < x < 6.20000000000000006e-245 or 1.6e-84 < x < 6.5999999999999996e71

    1. Initial program 75.6%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 6.20000000000000006e-245 < x < 1.6e-84

    1. Initial program 69.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 6.5999999999999996e71 < x

    1. Initial program 67.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around -inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 6 regimes into one program.
  4. Add Preprocessing

Alternative 8: 51.1% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := c \cdot \left(t \cdot j - z \cdot b\right)\\ t_2 := b \cdot \left(a \cdot i - z \cdot c\right)\\ t_3 := x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{if}\;x \leq -4.9 \cdot 10^{+50}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;x \leq -3 \cdot 10^{-109}:\\ \;\;\;\;y \cdot \left(x \cdot z - j \cdot i\right)\\ \mathbf{elif}\;x \leq -1.22 \cdot 10^{-147}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq -2.26 \cdot 10^{-302}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;x \leq 1.6 \cdot 10^{-247}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq 1.8 \cdot 10^{-84}:\\ \;\;\;\;\left(0 - i \cdot \left(y \cdot j\right)\right) - b \cdot \left(z \cdot c\right)\\ \mathbf{elif}\;x \leq 4.1 \cdot 10^{+81}:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_3\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* c (- (* t j) (* z b))))
        (t_2 (* b (- (* a i) (* z c))))
        (t_3 (* x (- (* y z) (* a t)))))
   (if (<= x -4.9e+50)
     t_3
     (if (<= x -3e-109)
       (* y (- (* x z) (* j i)))
       (if (<= x -1.22e-147)
         t_1
         (if (<= x -2.26e-302)
           t_2
           (if (<= x 1.6e-247)
             t_1
             (if (<= x 1.8e-84)
               (- (- 0.0 (* i (* y j))) (* b (* z c)))
               (if (<= x 4.1e+81) t_2 t_3)))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * ((t * j) - (z * b));
	double t_2 = b * ((a * i) - (z * c));
	double t_3 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -4.9e+50) {
		tmp = t_3;
	} else if (x <= -3e-109) {
		tmp = y * ((x * z) - (j * i));
	} else if (x <= -1.22e-147) {
		tmp = t_1;
	} else if (x <= -2.26e-302) {
		tmp = t_2;
	} else if (x <= 1.6e-247) {
		tmp = t_1;
	} else if (x <= 1.8e-84) {
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	} else if (x <= 4.1e+81) {
		tmp = t_2;
	} else {
		tmp = t_3;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: tmp
    t_1 = c * ((t * j) - (z * b))
    t_2 = b * ((a * i) - (z * c))
    t_3 = x * ((y * z) - (a * t))
    if (x <= (-4.9d+50)) then
        tmp = t_3
    else if (x <= (-3d-109)) then
        tmp = y * ((x * z) - (j * i))
    else if (x <= (-1.22d-147)) then
        tmp = t_1
    else if (x <= (-2.26d-302)) then
        tmp = t_2
    else if (x <= 1.6d-247) then
        tmp = t_1
    else if (x <= 1.8d-84) then
        tmp = (0.0d0 - (i * (y * j))) - (b * (z * c))
    else if (x <= 4.1d+81) then
        tmp = t_2
    else
        tmp = t_3
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * ((t * j) - (z * b));
	double t_2 = b * ((a * i) - (z * c));
	double t_3 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -4.9e+50) {
		tmp = t_3;
	} else if (x <= -3e-109) {
		tmp = y * ((x * z) - (j * i));
	} else if (x <= -1.22e-147) {
		tmp = t_1;
	} else if (x <= -2.26e-302) {
		tmp = t_2;
	} else if (x <= 1.6e-247) {
		tmp = t_1;
	} else if (x <= 1.8e-84) {
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	} else if (x <= 4.1e+81) {
		tmp = t_2;
	} else {
		tmp = t_3;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = c * ((t * j) - (z * b))
	t_2 = b * ((a * i) - (z * c))
	t_3 = x * ((y * z) - (a * t))
	tmp = 0
	if x <= -4.9e+50:
		tmp = t_3
	elif x <= -3e-109:
		tmp = y * ((x * z) - (j * i))
	elif x <= -1.22e-147:
		tmp = t_1
	elif x <= -2.26e-302:
		tmp = t_2
	elif x <= 1.6e-247:
		tmp = t_1
	elif x <= 1.8e-84:
		tmp = (0.0 - (i * (y * j))) - (b * (z * c))
	elif x <= 4.1e+81:
		tmp = t_2
	else:
		tmp = t_3
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(c * Float64(Float64(t * j) - Float64(z * b)))
	t_2 = Float64(b * Float64(Float64(a * i) - Float64(z * c)))
	t_3 = Float64(x * Float64(Float64(y * z) - Float64(a * t)))
	tmp = 0.0
	if (x <= -4.9e+50)
		tmp = t_3;
	elseif (x <= -3e-109)
		tmp = Float64(y * Float64(Float64(x * z) - Float64(j * i)));
	elseif (x <= -1.22e-147)
		tmp = t_1;
	elseif (x <= -2.26e-302)
		tmp = t_2;
	elseif (x <= 1.6e-247)
		tmp = t_1;
	elseif (x <= 1.8e-84)
		tmp = Float64(Float64(0.0 - Float64(i * Float64(y * j))) - Float64(b * Float64(z * c)));
	elseif (x <= 4.1e+81)
		tmp = t_2;
	else
		tmp = t_3;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = c * ((t * j) - (z * b));
	t_2 = b * ((a * i) - (z * c));
	t_3 = x * ((y * z) - (a * t));
	tmp = 0.0;
	if (x <= -4.9e+50)
		tmp = t_3;
	elseif (x <= -3e-109)
		tmp = y * ((x * z) - (j * i));
	elseif (x <= -1.22e-147)
		tmp = t_1;
	elseif (x <= -2.26e-302)
		tmp = t_2;
	elseif (x <= 1.6e-247)
		tmp = t_1;
	elseif (x <= 1.8e-84)
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	elseif (x <= 4.1e+81)
		tmp = t_2;
	else
		tmp = t_3;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(c * N[(N[(t * j), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -4.9e+50], t$95$3, If[LessEqual[x, -3e-109], N[(y * N[(N[(x * z), $MachinePrecision] - N[(j * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, -1.22e-147], t$95$1, If[LessEqual[x, -2.26e-302], t$95$2, If[LessEqual[x, 1.6e-247], t$95$1, If[LessEqual[x, 1.8e-84], N[(N[(0.0 - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 4.1e+81], t$95$2, t$95$3]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := c \cdot \left(t \cdot j - z \cdot b\right)\\
t_2 := b \cdot \left(a \cdot i - z \cdot c\right)\\
t_3 := x \cdot \left(y \cdot z - a \cdot t\right)\\
\mathbf{if}\;x \leq -4.9 \cdot 10^{+50}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;x \leq -3 \cdot 10^{-109}:\\
\;\;\;\;y \cdot \left(x \cdot z - j \cdot i\right)\\

\mathbf{elif}\;x \leq -1.22 \cdot 10^{-147}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq -2.26 \cdot 10^{-302}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;x \leq 1.6 \cdot 10^{-247}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq 1.8 \cdot 10^{-84}:\\
\;\;\;\;\left(0 - i \cdot \left(y \cdot j\right)\right) - b \cdot \left(z \cdot c\right)\\

\mathbf{elif}\;x \leq 4.1 \cdot 10^{+81}:\\
\;\;\;\;t\_2\\

\mathbf{else}:\\
\;\;\;\;t\_3\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if x < -4.9000000000000002e50 or 4.10000000000000012e81 < x

    1. Initial program 70.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -4.9000000000000002e50 < x < -3.00000000000000021e-109

    1. Initial program 75.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -3.00000000000000021e-109 < x < -1.21999999999999995e-147 or -2.2600000000000001e-302 < x < 1.59999999999999997e-247

    1. Initial program 66.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.21999999999999995e-147 < x < -2.2600000000000001e-302 or 1.80000000000000002e-84 < x < 4.10000000000000012e81

    1. Initial program 78.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 1.59999999999999997e-247 < x < 1.80000000000000002e-84

    1. Initial program 68.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 9: 28.7% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -9.5 \cdot 10^{+138}:\\ \;\;\;\;\left(z \cdot c\right) \cdot \left(-b\right)\\ \mathbf{elif}\;c \leq -21000:\\ \;\;\;\;-x \cdot \left(a \cdot t\right)\\ \mathbf{elif}\;c \leq -1.4 \cdot 10^{-111}:\\ \;\;\;\;i \cdot \left(b \cdot a\right)\\ \mathbf{elif}\;c \leq -1.5 \cdot 10^{-237}:\\ \;\;\;\;\left(x \cdot t\right) \cdot \left(-a\right)\\ \mathbf{elif}\;c \leq 2.3 \cdot 10^{-296}:\\ \;\;\;\;\left(a \cdot i\right) \cdot b\\ \mathbf{elif}\;c \leq 3.5 \cdot 10^{-85}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;c \leq 2 \cdot 10^{+125}:\\ \;\;\;\;0 - i \cdot \left(y \cdot j\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -9.5e+138)
   (* (* z c) (- b))
   (if (<= c -21000.0)
     (- (* x (* a t)))
     (if (<= c -1.4e-111)
       (* i (* b a))
       (if (<= c -1.5e-237)
         (* (* x t) (- a))
         (if (<= c 2.3e-296)
           (* (* a i) b)
           (if (<= c 3.5e-85)
             (* y (* x z))
             (if (<= c 2e+125) (- 0.0 (* i (* y j))) (* j (* c t))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -9.5e+138) {
		tmp = (z * c) * -b;
	} else if (c <= -21000.0) {
		tmp = -(x * (a * t));
	} else if (c <= -1.4e-111) {
		tmp = i * (b * a);
	} else if (c <= -1.5e-237) {
		tmp = (x * t) * -a;
	} else if (c <= 2.3e-296) {
		tmp = (a * i) * b;
	} else if (c <= 3.5e-85) {
		tmp = y * (x * z);
	} else if (c <= 2e+125) {
		tmp = 0.0 - (i * (y * j));
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-9.5d+138)) then
        tmp = (z * c) * -b
    else if (c <= (-21000.0d0)) then
        tmp = -(x * (a * t))
    else if (c <= (-1.4d-111)) then
        tmp = i * (b * a)
    else if (c <= (-1.5d-237)) then
        tmp = (x * t) * -a
    else if (c <= 2.3d-296) then
        tmp = (a * i) * b
    else if (c <= 3.5d-85) then
        tmp = y * (x * z)
    else if (c <= 2d+125) then
        tmp = 0.0d0 - (i * (y * j))
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -9.5e+138) {
		tmp = (z * c) * -b;
	} else if (c <= -21000.0) {
		tmp = -(x * (a * t));
	} else if (c <= -1.4e-111) {
		tmp = i * (b * a);
	} else if (c <= -1.5e-237) {
		tmp = (x * t) * -a;
	} else if (c <= 2.3e-296) {
		tmp = (a * i) * b;
	} else if (c <= 3.5e-85) {
		tmp = y * (x * z);
	} else if (c <= 2e+125) {
		tmp = 0.0 - (i * (y * j));
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -9.5e+138:
		tmp = (z * c) * -b
	elif c <= -21000.0:
		tmp = -(x * (a * t))
	elif c <= -1.4e-111:
		tmp = i * (b * a)
	elif c <= -1.5e-237:
		tmp = (x * t) * -a
	elif c <= 2.3e-296:
		tmp = (a * i) * b
	elif c <= 3.5e-85:
		tmp = y * (x * z)
	elif c <= 2e+125:
		tmp = 0.0 - (i * (y * j))
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -9.5e+138)
		tmp = Float64(Float64(z * c) * Float64(-b));
	elseif (c <= -21000.0)
		tmp = Float64(-Float64(x * Float64(a * t)));
	elseif (c <= -1.4e-111)
		tmp = Float64(i * Float64(b * a));
	elseif (c <= -1.5e-237)
		tmp = Float64(Float64(x * t) * Float64(-a));
	elseif (c <= 2.3e-296)
		tmp = Float64(Float64(a * i) * b);
	elseif (c <= 3.5e-85)
		tmp = Float64(y * Float64(x * z));
	elseif (c <= 2e+125)
		tmp = Float64(0.0 - Float64(i * Float64(y * j)));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -9.5e+138)
		tmp = (z * c) * -b;
	elseif (c <= -21000.0)
		tmp = -(x * (a * t));
	elseif (c <= -1.4e-111)
		tmp = i * (b * a);
	elseif (c <= -1.5e-237)
		tmp = (x * t) * -a;
	elseif (c <= 2.3e-296)
		tmp = (a * i) * b;
	elseif (c <= 3.5e-85)
		tmp = y * (x * z);
	elseif (c <= 2e+125)
		tmp = 0.0 - (i * (y * j));
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -9.5e+138], N[(N[(z * c), $MachinePrecision] * (-b)), $MachinePrecision], If[LessEqual[c, -21000.0], (-N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision]), If[LessEqual[c, -1.4e-111], N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, -1.5e-237], N[(N[(x * t), $MachinePrecision] * (-a)), $MachinePrecision], If[LessEqual[c, 2.3e-296], N[(N[(a * i), $MachinePrecision] * b), $MachinePrecision], If[LessEqual[c, 3.5e-85], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 2e+125], N[(0.0 - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -9.5 \cdot 10^{+138}:\\
\;\;\;\;\left(z \cdot c\right) \cdot \left(-b\right)\\

\mathbf{elif}\;c \leq -21000:\\
\;\;\;\;-x \cdot \left(a \cdot t\right)\\

\mathbf{elif}\;c \leq -1.4 \cdot 10^{-111}:\\
\;\;\;\;i \cdot \left(b \cdot a\right)\\

\mathbf{elif}\;c \leq -1.5 \cdot 10^{-237}:\\
\;\;\;\;\left(x \cdot t\right) \cdot \left(-a\right)\\

\mathbf{elif}\;c \leq 2.3 \cdot 10^{-296}:\\
\;\;\;\;\left(a \cdot i\right) \cdot b\\

\mathbf{elif}\;c \leq 3.5 \cdot 10^{-85}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;c \leq 2 \cdot 10^{+125}:\\
\;\;\;\;0 - i \cdot \left(y \cdot j\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 8 regimes
  2. if c < -9.49999999999999998e138

    1. Initial program 56.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -9.49999999999999998e138 < c < -21000

    1. Initial program 65.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -21000 < c < -1.39999999999999998e-111

    1. Initial program 81.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -1.39999999999999998e-111 < c < -1.50000000000000012e-237

    1. Initial program 86.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -1.50000000000000012e-237 < c < 2.30000000000000004e-296

    1. Initial program 81.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if 2.30000000000000004e-296 < c < 3.49999999999999978e-85

    1. Initial program 77.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 3.49999999999999978e-85 < c < 1.9999999999999998e125

    1. Initial program 73.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.9999999999999998e125 < c

    1. Initial program 66.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 8 regimes into one program.
  4. Add Preprocessing

Alternative 10: 28.7% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -7.4 \cdot 10^{+136}:\\ \;\;\;\;\left(z \cdot c\right) \cdot \left(-b\right)\\ \mathbf{elif}\;c \leq -13000:\\ \;\;\;\;-x \cdot \left(a \cdot t\right)\\ \mathbf{elif}\;c \leq -2.2 \cdot 10^{-111}:\\ \;\;\;\;i \cdot \left(b \cdot a\right)\\ \mathbf{elif}\;c \leq -2.9 \cdot 10^{-238}:\\ \;\;\;\;\left(x \cdot t\right) \cdot \left(-a\right)\\ \mathbf{elif}\;c \leq 3.5 \cdot 10^{-296}:\\ \;\;\;\;\left(a \cdot i\right) \cdot b\\ \mathbf{elif}\;c \leq 1.6 \cdot 10^{-85}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;c \leq 2.8 \cdot 10^{+125}:\\ \;\;\;\;y \cdot \left(j \cdot \left(-i\right)\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -7.4e+136)
   (* (* z c) (- b))
   (if (<= c -13000.0)
     (- (* x (* a t)))
     (if (<= c -2.2e-111)
       (* i (* b a))
       (if (<= c -2.9e-238)
         (* (* x t) (- a))
         (if (<= c 3.5e-296)
           (* (* a i) b)
           (if (<= c 1.6e-85)
             (* y (* x z))
             (if (<= c 2.8e+125) (* y (* j (- i))) (* j (* c t))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -7.4e+136) {
		tmp = (z * c) * -b;
	} else if (c <= -13000.0) {
		tmp = -(x * (a * t));
	} else if (c <= -2.2e-111) {
		tmp = i * (b * a);
	} else if (c <= -2.9e-238) {
		tmp = (x * t) * -a;
	} else if (c <= 3.5e-296) {
		tmp = (a * i) * b;
	} else if (c <= 1.6e-85) {
		tmp = y * (x * z);
	} else if (c <= 2.8e+125) {
		tmp = y * (j * -i);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-7.4d+136)) then
        tmp = (z * c) * -b
    else if (c <= (-13000.0d0)) then
        tmp = -(x * (a * t))
    else if (c <= (-2.2d-111)) then
        tmp = i * (b * a)
    else if (c <= (-2.9d-238)) then
        tmp = (x * t) * -a
    else if (c <= 3.5d-296) then
        tmp = (a * i) * b
    else if (c <= 1.6d-85) then
        tmp = y * (x * z)
    else if (c <= 2.8d+125) then
        tmp = y * (j * -i)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -7.4e+136) {
		tmp = (z * c) * -b;
	} else if (c <= -13000.0) {
		tmp = -(x * (a * t));
	} else if (c <= -2.2e-111) {
		tmp = i * (b * a);
	} else if (c <= -2.9e-238) {
		tmp = (x * t) * -a;
	} else if (c <= 3.5e-296) {
		tmp = (a * i) * b;
	} else if (c <= 1.6e-85) {
		tmp = y * (x * z);
	} else if (c <= 2.8e+125) {
		tmp = y * (j * -i);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -7.4e+136:
		tmp = (z * c) * -b
	elif c <= -13000.0:
		tmp = -(x * (a * t))
	elif c <= -2.2e-111:
		tmp = i * (b * a)
	elif c <= -2.9e-238:
		tmp = (x * t) * -a
	elif c <= 3.5e-296:
		tmp = (a * i) * b
	elif c <= 1.6e-85:
		tmp = y * (x * z)
	elif c <= 2.8e+125:
		tmp = y * (j * -i)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -7.4e+136)
		tmp = Float64(Float64(z * c) * Float64(-b));
	elseif (c <= -13000.0)
		tmp = Float64(-Float64(x * Float64(a * t)));
	elseif (c <= -2.2e-111)
		tmp = Float64(i * Float64(b * a));
	elseif (c <= -2.9e-238)
		tmp = Float64(Float64(x * t) * Float64(-a));
	elseif (c <= 3.5e-296)
		tmp = Float64(Float64(a * i) * b);
	elseif (c <= 1.6e-85)
		tmp = Float64(y * Float64(x * z));
	elseif (c <= 2.8e+125)
		tmp = Float64(y * Float64(j * Float64(-i)));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -7.4e+136)
		tmp = (z * c) * -b;
	elseif (c <= -13000.0)
		tmp = -(x * (a * t));
	elseif (c <= -2.2e-111)
		tmp = i * (b * a);
	elseif (c <= -2.9e-238)
		tmp = (x * t) * -a;
	elseif (c <= 3.5e-296)
		tmp = (a * i) * b;
	elseif (c <= 1.6e-85)
		tmp = y * (x * z);
	elseif (c <= 2.8e+125)
		tmp = y * (j * -i);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -7.4e+136], N[(N[(z * c), $MachinePrecision] * (-b)), $MachinePrecision], If[LessEqual[c, -13000.0], (-N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision]), If[LessEqual[c, -2.2e-111], N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, -2.9e-238], N[(N[(x * t), $MachinePrecision] * (-a)), $MachinePrecision], If[LessEqual[c, 3.5e-296], N[(N[(a * i), $MachinePrecision] * b), $MachinePrecision], If[LessEqual[c, 1.6e-85], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 2.8e+125], N[(y * N[(j * (-i)), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -7.4 \cdot 10^{+136}:\\
\;\;\;\;\left(z \cdot c\right) \cdot \left(-b\right)\\

\mathbf{elif}\;c \leq -13000:\\
\;\;\;\;-x \cdot \left(a \cdot t\right)\\

\mathbf{elif}\;c \leq -2.2 \cdot 10^{-111}:\\
\;\;\;\;i \cdot \left(b \cdot a\right)\\

\mathbf{elif}\;c \leq -2.9 \cdot 10^{-238}:\\
\;\;\;\;\left(x \cdot t\right) \cdot \left(-a\right)\\

\mathbf{elif}\;c \leq 3.5 \cdot 10^{-296}:\\
\;\;\;\;\left(a \cdot i\right) \cdot b\\

\mathbf{elif}\;c \leq 1.6 \cdot 10^{-85}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;c \leq 2.8 \cdot 10^{+125}:\\
\;\;\;\;y \cdot \left(j \cdot \left(-i\right)\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 8 regimes
  2. if c < -7.4000000000000002e136

    1. Initial program 56.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -7.4000000000000002e136 < c < -13000

    1. Initial program 65.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -13000 < c < -2.2e-111

    1. Initial program 81.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -2.2e-111 < c < -2.8999999999999998e-238

    1. Initial program 86.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -2.8999999999999998e-238 < c < 3.4999999999999999e-296

    1. Initial program 81.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if 3.4999999999999999e-296 < c < 1.60000000000000014e-85

    1. Initial program 77.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.60000000000000014e-85 < c < 2.8000000000000001e125

    1. Initial program 73.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 2.8000000000000001e125 < c

    1. Initial program 66.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 8 regimes into one program.
  4. Add Preprocessing

Alternative 11: 28.7% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -5.4 \cdot 10^{+135}:\\ \;\;\;\;\left(c \cdot j\right) \cdot t\\ \mathbf{elif}\;c \leq -17000:\\ \;\;\;\;-x \cdot \left(a \cdot t\right)\\ \mathbf{elif}\;c \leq -7 \cdot 10^{-111}:\\ \;\;\;\;i \cdot \left(b \cdot a\right)\\ \mathbf{elif}\;c \leq -1.35 \cdot 10^{-237}:\\ \;\;\;\;\left(x \cdot t\right) \cdot \left(-a\right)\\ \mathbf{elif}\;c \leq 3.3 \cdot 10^{-296}:\\ \;\;\;\;\left(a \cdot i\right) \cdot b\\ \mathbf{elif}\;c \leq 2.2 \cdot 10^{-85}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;c \leq 2.6 \cdot 10^{+125}:\\ \;\;\;\;y \cdot \left(j \cdot \left(-i\right)\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -5.4e+135)
   (* (* c j) t)
   (if (<= c -17000.0)
     (- (* x (* a t)))
     (if (<= c -7e-111)
       (* i (* b a))
       (if (<= c -1.35e-237)
         (* (* x t) (- a))
         (if (<= c 3.3e-296)
           (* (* a i) b)
           (if (<= c 2.2e-85)
             (* y (* x z))
             (if (<= c 2.6e+125) (* y (* j (- i))) (* j (* c t))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -5.4e+135) {
		tmp = (c * j) * t;
	} else if (c <= -17000.0) {
		tmp = -(x * (a * t));
	} else if (c <= -7e-111) {
		tmp = i * (b * a);
	} else if (c <= -1.35e-237) {
		tmp = (x * t) * -a;
	} else if (c <= 3.3e-296) {
		tmp = (a * i) * b;
	} else if (c <= 2.2e-85) {
		tmp = y * (x * z);
	} else if (c <= 2.6e+125) {
		tmp = y * (j * -i);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-5.4d+135)) then
        tmp = (c * j) * t
    else if (c <= (-17000.0d0)) then
        tmp = -(x * (a * t))
    else if (c <= (-7d-111)) then
        tmp = i * (b * a)
    else if (c <= (-1.35d-237)) then
        tmp = (x * t) * -a
    else if (c <= 3.3d-296) then
        tmp = (a * i) * b
    else if (c <= 2.2d-85) then
        tmp = y * (x * z)
    else if (c <= 2.6d+125) then
        tmp = y * (j * -i)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -5.4e+135) {
		tmp = (c * j) * t;
	} else if (c <= -17000.0) {
		tmp = -(x * (a * t));
	} else if (c <= -7e-111) {
		tmp = i * (b * a);
	} else if (c <= -1.35e-237) {
		tmp = (x * t) * -a;
	} else if (c <= 3.3e-296) {
		tmp = (a * i) * b;
	} else if (c <= 2.2e-85) {
		tmp = y * (x * z);
	} else if (c <= 2.6e+125) {
		tmp = y * (j * -i);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -5.4e+135:
		tmp = (c * j) * t
	elif c <= -17000.0:
		tmp = -(x * (a * t))
	elif c <= -7e-111:
		tmp = i * (b * a)
	elif c <= -1.35e-237:
		tmp = (x * t) * -a
	elif c <= 3.3e-296:
		tmp = (a * i) * b
	elif c <= 2.2e-85:
		tmp = y * (x * z)
	elif c <= 2.6e+125:
		tmp = y * (j * -i)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -5.4e+135)
		tmp = Float64(Float64(c * j) * t);
	elseif (c <= -17000.0)
		tmp = Float64(-Float64(x * Float64(a * t)));
	elseif (c <= -7e-111)
		tmp = Float64(i * Float64(b * a));
	elseif (c <= -1.35e-237)
		tmp = Float64(Float64(x * t) * Float64(-a));
	elseif (c <= 3.3e-296)
		tmp = Float64(Float64(a * i) * b);
	elseif (c <= 2.2e-85)
		tmp = Float64(y * Float64(x * z));
	elseif (c <= 2.6e+125)
		tmp = Float64(y * Float64(j * Float64(-i)));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -5.4e+135)
		tmp = (c * j) * t;
	elseif (c <= -17000.0)
		tmp = -(x * (a * t));
	elseif (c <= -7e-111)
		tmp = i * (b * a);
	elseif (c <= -1.35e-237)
		tmp = (x * t) * -a;
	elseif (c <= 3.3e-296)
		tmp = (a * i) * b;
	elseif (c <= 2.2e-85)
		tmp = y * (x * z);
	elseif (c <= 2.6e+125)
		tmp = y * (j * -i);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -5.4e+135], N[(N[(c * j), $MachinePrecision] * t), $MachinePrecision], If[LessEqual[c, -17000.0], (-N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision]), If[LessEqual[c, -7e-111], N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, -1.35e-237], N[(N[(x * t), $MachinePrecision] * (-a)), $MachinePrecision], If[LessEqual[c, 3.3e-296], N[(N[(a * i), $MachinePrecision] * b), $MachinePrecision], If[LessEqual[c, 2.2e-85], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 2.6e+125], N[(y * N[(j * (-i)), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -5.4 \cdot 10^{+135}:\\
\;\;\;\;\left(c \cdot j\right) \cdot t\\

\mathbf{elif}\;c \leq -17000:\\
\;\;\;\;-x \cdot \left(a \cdot t\right)\\

\mathbf{elif}\;c \leq -7 \cdot 10^{-111}:\\
\;\;\;\;i \cdot \left(b \cdot a\right)\\

\mathbf{elif}\;c \leq -1.35 \cdot 10^{-237}:\\
\;\;\;\;\left(x \cdot t\right) \cdot \left(-a\right)\\

\mathbf{elif}\;c \leq 3.3 \cdot 10^{-296}:\\
\;\;\;\;\left(a \cdot i\right) \cdot b\\

\mathbf{elif}\;c \leq 2.2 \cdot 10^{-85}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;c \leq 2.6 \cdot 10^{+125}:\\
\;\;\;\;y \cdot \left(j \cdot \left(-i\right)\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 8 regimes
  2. if c < -5.3999999999999997e135

    1. Initial program 55.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -5.3999999999999997e135 < c < -17000

    1. Initial program 67.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -17000 < c < -7.0000000000000001e-111

    1. Initial program 81.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -7.0000000000000001e-111 < c < -1.34999999999999992e-237

    1. Initial program 86.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -1.34999999999999992e-237 < c < 3.3e-296

    1. Initial program 81.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if 3.3e-296 < c < 2.2e-85

    1. Initial program 77.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 2.2e-85 < c < 2.60000000000000003e125

    1. Initial program 73.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 2.60000000000000003e125 < c

    1. Initial program 66.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 8 regimes into one program.
  4. Add Preprocessing

Alternative 12: 59.0% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{if}\;x \leq -6.5 \cdot 10^{+161}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq -5.1 \cdot 10^{-84}:\\ \;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\ \mathbf{elif}\;x \leq 4.8 \cdot 10^{-226}:\\ \;\;\;\;a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ \mathbf{elif}\;x \leq 1.85 \cdot 10^{-84}:\\ \;\;\;\;\left(0 - i \cdot \left(y \cdot j\right)\right) - b \cdot \left(z \cdot c\right)\\ \mathbf{elif}\;x \leq 3.75 \cdot 10^{+115}:\\ \;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + i \cdot \left(b \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* x (- (* y z) (* a t)))))
   (if (<= x -6.5e+161)
     t_1
     (if (<= x -5.1e-84)
       (+ (* y (* x z)) (* a (- (* b i) (* x t))))
       (if (<= x 4.8e-226)
         (+ (* a (* i b)) (* j (- (* c t) (* i y))))
         (if (<= x 1.85e-84)
           (- (- 0.0 (* i (* y j))) (* b (* z c)))
           (if (<= x 3.75e+115)
             (+ (* t (- (* j c) (* x a))) (* i (* b a)))
             t_1)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -6.5e+161) {
		tmp = t_1;
	} else if (x <= -5.1e-84) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= 4.8e-226) {
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	} else if (x <= 1.85e-84) {
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	} else if (x <= 3.75e+115) {
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x * ((y * z) - (a * t))
    if (x <= (-6.5d+161)) then
        tmp = t_1
    else if (x <= (-5.1d-84)) then
        tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
    else if (x <= 4.8d-226) then
        tmp = (a * (i * b)) + (j * ((c * t) - (i * y)))
    else if (x <= 1.85d-84) then
        tmp = (0.0d0 - (i * (y * j))) - (b * (z * c))
    else if (x <= 3.75d+115) then
        tmp = (t * ((j * c) - (x * a))) + (i * (b * a))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -6.5e+161) {
		tmp = t_1;
	} else if (x <= -5.1e-84) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= 4.8e-226) {
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	} else if (x <= 1.85e-84) {
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	} else if (x <= 3.75e+115) {
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = x * ((y * z) - (a * t))
	tmp = 0
	if x <= -6.5e+161:
		tmp = t_1
	elif x <= -5.1e-84:
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
	elif x <= 4.8e-226:
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)))
	elif x <= 1.85e-84:
		tmp = (0.0 - (i * (y * j))) - (b * (z * c))
	elif x <= 3.75e+115:
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(x * Float64(Float64(y * z) - Float64(a * t)))
	tmp = 0.0
	if (x <= -6.5e+161)
		tmp = t_1;
	elseif (x <= -5.1e-84)
		tmp = Float64(Float64(y * Float64(x * z)) + Float64(a * Float64(Float64(b * i) - Float64(x * t))));
	elseif (x <= 4.8e-226)
		tmp = Float64(Float64(a * Float64(i * b)) + Float64(j * Float64(Float64(c * t) - Float64(i * y))));
	elseif (x <= 1.85e-84)
		tmp = Float64(Float64(0.0 - Float64(i * Float64(y * j))) - Float64(b * Float64(z * c)));
	elseif (x <= 3.75e+115)
		tmp = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + Float64(i * Float64(b * a)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = x * ((y * z) - (a * t));
	tmp = 0.0;
	if (x <= -6.5e+161)
		tmp = t_1;
	elseif (x <= -5.1e-84)
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	elseif (x <= 4.8e-226)
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	elseif (x <= 1.85e-84)
		tmp = (0.0 - (i * (y * j))) - (b * (z * c));
	elseif (x <= 3.75e+115)
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -6.5e+161], t$95$1, If[LessEqual[x, -5.1e-84], N[(N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision] + N[(a * N[(N[(b * i), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 4.8e-226], N[(N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.85e-84], N[(N[(0.0 - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 3.75e+115], N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x \cdot \left(y \cdot z - a \cdot t\right)\\
\mathbf{if}\;x \leq -6.5 \cdot 10^{+161}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq -5.1 \cdot 10^{-84}:\\
\;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\

\mathbf{elif}\;x \leq 4.8 \cdot 10^{-226}:\\
\;\;\;\;a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\

\mathbf{elif}\;x \leq 1.85 \cdot 10^{-84}:\\
\;\;\;\;\left(0 - i \cdot \left(y \cdot j\right)\right) - b \cdot \left(z \cdot c\right)\\

\mathbf{elif}\;x \leq 3.75 \cdot 10^{+115}:\\
\;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + i \cdot \left(b \cdot a\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if x < -6.5e161 or 3.7499999999999998e115 < x

    1. Initial program 65.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -6.5e161 < x < -5.0999999999999996e-84

    1. Initial program 78.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    8. Simplified0

      \[\leadsto expr\]

    if -5.0999999999999996e-84 < x < 4.7999999999999999e-226

    1. Initial program 69.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 4.7999999999999999e-226 < x < 1.85e-84

    1. Initial program 69.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.85e-84 < x < 3.7499999999999998e115

    1. Initial program 84.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 13: 50.2% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\ \mathbf{if}\;j \leq -1.35 \cdot 10^{+34}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq -2.4 \cdot 10^{-183}:\\ \;\;\;\;y \cdot \left(x \cdot z - \frac{x \cdot \left(a \cdot t\right)}{y}\right)\\ \mathbf{elif}\;j \leq 2.2 \cdot 10^{-222}:\\ \;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{elif}\;j \leq 7.5 \cdot 10^{-117}:\\ \;\;\;\;\left(x \cdot z\right) \cdot \left(y - \frac{b \cdot c}{x}\right)\\ \mathbf{elif}\;j \leq 2.9 \cdot 10^{+14}:\\ \;\;\;\;\left(t \cdot b\right) \cdot \left(\frac{j \cdot c}{b} - \frac{x \cdot a}{b}\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* t c) (* y i)))))
   (if (<= j -1.35e+34)
     t_1
     (if (<= j -2.4e-183)
       (* y (- (* x z) (/ (* x (* a t)) y)))
       (if (<= j 2.2e-222)
         (* b (- (* a i) (* z c)))
         (if (<= j 7.5e-117)
           (* (* x z) (- y (/ (* b c) x)))
           (if (<= j 2.9e+14)
             (* (* t b) (- (/ (* j c) b) (/ (* x a) b)))
             t_1)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.35e+34) {
		tmp = t_1;
	} else if (j <= -2.4e-183) {
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	} else if (j <= 2.2e-222) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 7.5e-117) {
		tmp = (x * z) * (y - ((b * c) / x));
	} else if (j <= 2.9e+14) {
		tmp = (t * b) * (((j * c) / b) - ((x * a) / b));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = j * ((t * c) - (y * i))
    if (j <= (-1.35d+34)) then
        tmp = t_1
    else if (j <= (-2.4d-183)) then
        tmp = y * ((x * z) - ((x * (a * t)) / y))
    else if (j <= 2.2d-222) then
        tmp = b * ((a * i) - (z * c))
    else if (j <= 7.5d-117) then
        tmp = (x * z) * (y - ((b * c) / x))
    else if (j <= 2.9d+14) then
        tmp = (t * b) * (((j * c) / b) - ((x * a) / b))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.35e+34) {
		tmp = t_1;
	} else if (j <= -2.4e-183) {
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	} else if (j <= 2.2e-222) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 7.5e-117) {
		tmp = (x * z) * (y - ((b * c) / x));
	} else if (j <= 2.9e+14) {
		tmp = (t * b) * (((j * c) / b) - ((x * a) / b));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((t * c) - (y * i))
	tmp = 0
	if j <= -1.35e+34:
		tmp = t_1
	elif j <= -2.4e-183:
		tmp = y * ((x * z) - ((x * (a * t)) / y))
	elif j <= 2.2e-222:
		tmp = b * ((a * i) - (z * c))
	elif j <= 7.5e-117:
		tmp = (x * z) * (y - ((b * c) / x))
	elif j <= 2.9e+14:
		tmp = (t * b) * (((j * c) / b) - ((x * a) / b))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(t * c) - Float64(y * i)))
	tmp = 0.0
	if (j <= -1.35e+34)
		tmp = t_1;
	elseif (j <= -2.4e-183)
		tmp = Float64(y * Float64(Float64(x * z) - Float64(Float64(x * Float64(a * t)) / y)));
	elseif (j <= 2.2e-222)
		tmp = Float64(b * Float64(Float64(a * i) - Float64(z * c)));
	elseif (j <= 7.5e-117)
		tmp = Float64(Float64(x * z) * Float64(y - Float64(Float64(b * c) / x)));
	elseif (j <= 2.9e+14)
		tmp = Float64(Float64(t * b) * Float64(Float64(Float64(j * c) / b) - Float64(Float64(x * a) / b)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((t * c) - (y * i));
	tmp = 0.0;
	if (j <= -1.35e+34)
		tmp = t_1;
	elseif (j <= -2.4e-183)
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	elseif (j <= 2.2e-222)
		tmp = b * ((a * i) - (z * c));
	elseif (j <= 7.5e-117)
		tmp = (x * z) * (y - ((b * c) / x));
	elseif (j <= 2.9e+14)
		tmp = (t * b) * (((j * c) / b) - ((x * a) / b));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(t * c), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -1.35e+34], t$95$1, If[LessEqual[j, -2.4e-183], N[(y * N[(N[(x * z), $MachinePrecision] - N[(N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 2.2e-222], N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 7.5e-117], N[(N[(x * z), $MachinePrecision] * N[(y - N[(N[(b * c), $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 2.9e+14], N[(N[(t * b), $MachinePrecision] * N[(N[(N[(j * c), $MachinePrecision] / b), $MachinePrecision] - N[(N[(x * a), $MachinePrecision] / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\
\mathbf{if}\;j \leq -1.35 \cdot 10^{+34}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;j \leq -2.4 \cdot 10^{-183}:\\
\;\;\;\;y \cdot \left(x \cdot z - \frac{x \cdot \left(a \cdot t\right)}{y}\right)\\

\mathbf{elif}\;j \leq 2.2 \cdot 10^{-222}:\\
\;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\

\mathbf{elif}\;j \leq 7.5 \cdot 10^{-117}:\\
\;\;\;\;\left(x \cdot z\right) \cdot \left(y - \frac{b \cdot c}{x}\right)\\

\mathbf{elif}\;j \leq 2.9 \cdot 10^{+14}:\\
\;\;\;\;\left(t \cdot b\right) \cdot \left(\frac{j \cdot c}{b} - \frac{x \cdot a}{b}\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if j < -1.35e34 or 2.9e14 < j

    1. Initial program 68.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.35e34 < j < -2.39999999999999993e-183

    1. Initial program 81.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -2.39999999999999993e-183 < j < 2.2e-222

    1. Initial program 79.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 2.2e-222 < j < 7.50000000000000066e-117

    1. Initial program 62.6%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around -inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 7.50000000000000066e-117 < j < 2.9e14

    1. Initial program 77.6%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around -inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 14: 68.8% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{if}\;j \leq -1.35 \cdot 10^{+34}:\\ \;\;\;\;a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ \mathbf{elif}\;j \leq -2.35 \cdot 10^{-281}:\\ \;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right) + t\_1\\ \mathbf{elif}\;j \leq 1.5 \cdot 10^{+69}:\\ \;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + \left(z \cdot \left(y \cdot x\right) + t\_1\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(x \cdot z - i \cdot j\right) + c \cdot \left(j \cdot t - z \cdot b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (- (* a i) (* z c)))))
   (if (<= j -1.35e+34)
     (+ (* a (* i b)) (* j (- (* c t) (* i y))))
     (if (<= j -2.35e-281)
       (+ (* x (- (* y z) (* a t))) t_1)
       (if (<= j 1.5e+69)
         (+ (* t (- (* j c) (* x a))) (+ (* z (* y x)) t_1))
         (+ (* y (- (* x z) (* i j))) (* c (- (* j t) (* z b)))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((a * i) - (z * c));
	double tmp;
	if (j <= -1.35e+34) {
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	} else if (j <= -2.35e-281) {
		tmp = (x * ((y * z) - (a * t))) + t_1;
	} else if (j <= 1.5e+69) {
		tmp = (t * ((j * c) - (x * a))) + ((z * (y * x)) + t_1);
	} else {
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = b * ((a * i) - (z * c))
    if (j <= (-1.35d+34)) then
        tmp = (a * (i * b)) + (j * ((c * t) - (i * y)))
    else if (j <= (-2.35d-281)) then
        tmp = (x * ((y * z) - (a * t))) + t_1
    else if (j <= 1.5d+69) then
        tmp = (t * ((j * c) - (x * a))) + ((z * (y * x)) + t_1)
    else
        tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((a * i) - (z * c));
	double tmp;
	if (j <= -1.35e+34) {
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	} else if (j <= -2.35e-281) {
		tmp = (x * ((y * z) - (a * t))) + t_1;
	} else if (j <= 1.5e+69) {
		tmp = (t * ((j * c) - (x * a))) + ((z * (y * x)) + t_1);
	} else {
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * ((a * i) - (z * c))
	tmp = 0
	if j <= -1.35e+34:
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)))
	elif j <= -2.35e-281:
		tmp = (x * ((y * z) - (a * t))) + t_1
	elif j <= 1.5e+69:
		tmp = (t * ((j * c) - (x * a))) + ((z * (y * x)) + t_1)
	else:
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)))
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(Float64(a * i) - Float64(z * c)))
	tmp = 0.0
	if (j <= -1.35e+34)
		tmp = Float64(Float64(a * Float64(i * b)) + Float64(j * Float64(Float64(c * t) - Float64(i * y))));
	elseif (j <= -2.35e-281)
		tmp = Float64(Float64(x * Float64(Float64(y * z) - Float64(a * t))) + t_1);
	elseif (j <= 1.5e+69)
		tmp = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + Float64(Float64(z * Float64(y * x)) + t_1));
	else
		tmp = Float64(Float64(y * Float64(Float64(x * z) - Float64(i * j))) + Float64(c * Float64(Float64(j * t) - Float64(z * b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * ((a * i) - (z * c));
	tmp = 0.0;
	if (j <= -1.35e+34)
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	elseif (j <= -2.35e-281)
		tmp = (x * ((y * z) - (a * t))) + t_1;
	elseif (j <= 1.5e+69)
		tmp = (t * ((j * c) - (x * a))) + ((z * (y * x)) + t_1);
	else
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -1.35e+34], N[(N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, -2.35e-281], N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], If[LessEqual[j, 1.5e+69], N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(z * N[(y * x), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision]), $MachinePrecision], N[(N[(y * N[(N[(x * z), $MachinePrecision] - N[(i * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(c * N[(N[(j * t), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b \cdot \left(a \cdot i - z \cdot c\right)\\
\mathbf{if}\;j \leq -1.35 \cdot 10^{+34}:\\
\;\;\;\;a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\

\mathbf{elif}\;j \leq -2.35 \cdot 10^{-281}:\\
\;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right) + t\_1\\

\mathbf{elif}\;j \leq 1.5 \cdot 10^{+69}:\\
\;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + \left(z \cdot \left(y \cdot x\right) + t\_1\right)\\

\mathbf{else}:\\
\;\;\;\;y \cdot \left(x \cdot z - i \cdot j\right) + c \cdot \left(j \cdot t - z \cdot b\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if j < -1.35e34

    1. Initial program 69.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.35e34 < j < -2.3500000000000001e-281

    1. Initial program 79.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -2.3500000000000001e-281 < j < 1.49999999999999992e69

    1. Initial program 73.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.49999999999999992e69 < j

    1. Initial program 64.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 15: 49.3% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x \cdot \left(y \cdot z - a \cdot t\right)\\ t_2 := j \cdot \left(t \cdot c - y \cdot i\right)\\ \mathbf{if}\;j \leq -1.5 \cdot 10^{+172}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;j \leq -1.08 \cdot 10^{-213}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq 9.5 \cdot 10^{-175}:\\ \;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{elif}\;j \leq 8.5 \cdot 10^{-117}:\\ \;\;\;\;y \cdot \left(x \cdot z - j \cdot i\right)\\ \mathbf{elif}\;j \leq 4.8 \cdot 10^{-86}:\\ \;\;\;\;i \cdot \left(a \cdot b - y \cdot j\right)\\ \mathbf{elif}\;j \leq 3.3 \cdot 10^{+26}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* x (- (* y z) (* a t)))) (t_2 (* j (- (* t c) (* y i)))))
   (if (<= j -1.5e+172)
     t_2
     (if (<= j -1.08e-213)
       t_1
       (if (<= j 9.5e-175)
         (* b (- (* a i) (* z c)))
         (if (<= j 8.5e-117)
           (* y (- (* x z) (* j i)))
           (if (<= j 4.8e-86)
             (* i (- (* a b) (* y j)))
             (if (<= j 3.3e+26) t_1 t_2))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = x * ((y * z) - (a * t));
	double t_2 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.5e+172) {
		tmp = t_2;
	} else if (j <= -1.08e-213) {
		tmp = t_1;
	} else if (j <= 9.5e-175) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 8.5e-117) {
		tmp = y * ((x * z) - (j * i));
	} else if (j <= 4.8e-86) {
		tmp = i * ((a * b) - (y * j));
	} else if (j <= 3.3e+26) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = x * ((y * z) - (a * t))
    t_2 = j * ((t * c) - (y * i))
    if (j <= (-1.5d+172)) then
        tmp = t_2
    else if (j <= (-1.08d-213)) then
        tmp = t_1
    else if (j <= 9.5d-175) then
        tmp = b * ((a * i) - (z * c))
    else if (j <= 8.5d-117) then
        tmp = y * ((x * z) - (j * i))
    else if (j <= 4.8d-86) then
        tmp = i * ((a * b) - (y * j))
    else if (j <= 3.3d+26) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = x * ((y * z) - (a * t));
	double t_2 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.5e+172) {
		tmp = t_2;
	} else if (j <= -1.08e-213) {
		tmp = t_1;
	} else if (j <= 9.5e-175) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 8.5e-117) {
		tmp = y * ((x * z) - (j * i));
	} else if (j <= 4.8e-86) {
		tmp = i * ((a * b) - (y * j));
	} else if (j <= 3.3e+26) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = x * ((y * z) - (a * t))
	t_2 = j * ((t * c) - (y * i))
	tmp = 0
	if j <= -1.5e+172:
		tmp = t_2
	elif j <= -1.08e-213:
		tmp = t_1
	elif j <= 9.5e-175:
		tmp = b * ((a * i) - (z * c))
	elif j <= 8.5e-117:
		tmp = y * ((x * z) - (j * i))
	elif j <= 4.8e-86:
		tmp = i * ((a * b) - (y * j))
	elif j <= 3.3e+26:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(x * Float64(Float64(y * z) - Float64(a * t)))
	t_2 = Float64(j * Float64(Float64(t * c) - Float64(y * i)))
	tmp = 0.0
	if (j <= -1.5e+172)
		tmp = t_2;
	elseif (j <= -1.08e-213)
		tmp = t_1;
	elseif (j <= 9.5e-175)
		tmp = Float64(b * Float64(Float64(a * i) - Float64(z * c)));
	elseif (j <= 8.5e-117)
		tmp = Float64(y * Float64(Float64(x * z) - Float64(j * i)));
	elseif (j <= 4.8e-86)
		tmp = Float64(i * Float64(Float64(a * b) - Float64(y * j)));
	elseif (j <= 3.3e+26)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = x * ((y * z) - (a * t));
	t_2 = j * ((t * c) - (y * i));
	tmp = 0.0;
	if (j <= -1.5e+172)
		tmp = t_2;
	elseif (j <= -1.08e-213)
		tmp = t_1;
	elseif (j <= 9.5e-175)
		tmp = b * ((a * i) - (z * c));
	elseif (j <= 8.5e-117)
		tmp = y * ((x * z) - (j * i));
	elseif (j <= 4.8e-86)
		tmp = i * ((a * b) - (y * j));
	elseif (j <= 3.3e+26)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(j * N[(N[(t * c), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -1.5e+172], t$95$2, If[LessEqual[j, -1.08e-213], t$95$1, If[LessEqual[j, 9.5e-175], N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 8.5e-117], N[(y * N[(N[(x * z), $MachinePrecision] - N[(j * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 4.8e-86], N[(i * N[(N[(a * b), $MachinePrecision] - N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 3.3e+26], t$95$1, t$95$2]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x \cdot \left(y \cdot z - a \cdot t\right)\\
t_2 := j \cdot \left(t \cdot c - y \cdot i\right)\\
\mathbf{if}\;j \leq -1.5 \cdot 10^{+172}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;j \leq -1.08 \cdot 10^{-213}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;j \leq 9.5 \cdot 10^{-175}:\\
\;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\

\mathbf{elif}\;j \leq 8.5 \cdot 10^{-117}:\\
\;\;\;\;y \cdot \left(x \cdot z - j \cdot i\right)\\

\mathbf{elif}\;j \leq 4.8 \cdot 10^{-86}:\\
\;\;\;\;i \cdot \left(a \cdot b - y \cdot j\right)\\

\mathbf{elif}\;j \leq 3.3 \cdot 10^{+26}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if j < -1.5e172 or 3.29999999999999993e26 < j

    1. Initial program 69.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.5e172 < j < -1.08e-213 or 4.80000000000000026e-86 < j < 3.29999999999999993e26

    1. Initial program 75.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.08e-213 < j < 9.50000000000000052e-175

    1. Initial program 78.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 9.50000000000000052e-175 < j < 8.49999999999999981e-117

    1. Initial program 48.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 8.49999999999999981e-117 < j < 4.80000000000000026e-86

    1. Initial program 73.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 16: 65.9% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(a \cdot i - z \cdot c\right)\\ t_2 := t \cdot \left(j \cdot c - x \cdot a\right)\\ \mathbf{if}\;j \leq -1.7 \cdot 10^{+34}:\\ \;\;\;\;a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ \mathbf{elif}\;j \leq 7 \cdot 10^{-222}:\\ \;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right) + t\_1\\ \mathbf{elif}\;j \leq 3.4 \cdot 10^{-8}:\\ \;\;\;\;t\_2 + \left(z \cdot \left(y \cdot x\right) + c \cdot \left(b \cdot \left(0 - z\right)\right)\right)\\ \mathbf{elif}\;j \leq 10^{+69}:\\ \;\;\;\;t\_2 + t\_1\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(x \cdot z - i \cdot j\right) + c \cdot \left(j \cdot t - z \cdot b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (- (* a i) (* z c)))) (t_2 (* t (- (* j c) (* x a)))))
   (if (<= j -1.7e+34)
     (+ (* a (* i b)) (* j (- (* c t) (* i y))))
     (if (<= j 7e-222)
       (+ (* x (- (* y z) (* a t))) t_1)
       (if (<= j 3.4e-8)
         (+ t_2 (+ (* z (* y x)) (* c (* b (- 0.0 z)))))
         (if (<= j 1e+69)
           (+ t_2 t_1)
           (+ (* y (- (* x z) (* i j))) (* c (- (* j t) (* z b))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((a * i) - (z * c));
	double t_2 = t * ((j * c) - (x * a));
	double tmp;
	if (j <= -1.7e+34) {
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	} else if (j <= 7e-222) {
		tmp = (x * ((y * z) - (a * t))) + t_1;
	} else if (j <= 3.4e-8) {
		tmp = t_2 + ((z * (y * x)) + (c * (b * (0.0 - z))));
	} else if (j <= 1e+69) {
		tmp = t_2 + t_1;
	} else {
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = b * ((a * i) - (z * c))
    t_2 = t * ((j * c) - (x * a))
    if (j <= (-1.7d+34)) then
        tmp = (a * (i * b)) + (j * ((c * t) - (i * y)))
    else if (j <= 7d-222) then
        tmp = (x * ((y * z) - (a * t))) + t_1
    else if (j <= 3.4d-8) then
        tmp = t_2 + ((z * (y * x)) + (c * (b * (0.0d0 - z))))
    else if (j <= 1d+69) then
        tmp = t_2 + t_1
    else
        tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((a * i) - (z * c));
	double t_2 = t * ((j * c) - (x * a));
	double tmp;
	if (j <= -1.7e+34) {
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	} else if (j <= 7e-222) {
		tmp = (x * ((y * z) - (a * t))) + t_1;
	} else if (j <= 3.4e-8) {
		tmp = t_2 + ((z * (y * x)) + (c * (b * (0.0 - z))));
	} else if (j <= 1e+69) {
		tmp = t_2 + t_1;
	} else {
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * ((a * i) - (z * c))
	t_2 = t * ((j * c) - (x * a))
	tmp = 0
	if j <= -1.7e+34:
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)))
	elif j <= 7e-222:
		tmp = (x * ((y * z) - (a * t))) + t_1
	elif j <= 3.4e-8:
		tmp = t_2 + ((z * (y * x)) + (c * (b * (0.0 - z))))
	elif j <= 1e+69:
		tmp = t_2 + t_1
	else:
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)))
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(Float64(a * i) - Float64(z * c)))
	t_2 = Float64(t * Float64(Float64(j * c) - Float64(x * a)))
	tmp = 0.0
	if (j <= -1.7e+34)
		tmp = Float64(Float64(a * Float64(i * b)) + Float64(j * Float64(Float64(c * t) - Float64(i * y))));
	elseif (j <= 7e-222)
		tmp = Float64(Float64(x * Float64(Float64(y * z) - Float64(a * t))) + t_1);
	elseif (j <= 3.4e-8)
		tmp = Float64(t_2 + Float64(Float64(z * Float64(y * x)) + Float64(c * Float64(b * Float64(0.0 - z)))));
	elseif (j <= 1e+69)
		tmp = Float64(t_2 + t_1);
	else
		tmp = Float64(Float64(y * Float64(Float64(x * z) - Float64(i * j))) + Float64(c * Float64(Float64(j * t) - Float64(z * b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * ((a * i) - (z * c));
	t_2 = t * ((j * c) - (x * a));
	tmp = 0.0;
	if (j <= -1.7e+34)
		tmp = (a * (i * b)) + (j * ((c * t) - (i * y)));
	elseif (j <= 7e-222)
		tmp = (x * ((y * z) - (a * t))) + t_1;
	elseif (j <= 3.4e-8)
		tmp = t_2 + ((z * (y * x)) + (c * (b * (0.0 - z))));
	elseif (j <= 1e+69)
		tmp = t_2 + t_1;
	else
		tmp = (y * ((x * z) - (i * j))) + (c * ((j * t) - (z * b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -1.7e+34], N[(N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 7e-222], N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], If[LessEqual[j, 3.4e-8], N[(t$95$2 + N[(N[(z * N[(y * x), $MachinePrecision]), $MachinePrecision] + N[(c * N[(b * N[(0.0 - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 1e+69], N[(t$95$2 + t$95$1), $MachinePrecision], N[(N[(y * N[(N[(x * z), $MachinePrecision] - N[(i * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(c * N[(N[(j * t), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b \cdot \left(a \cdot i - z \cdot c\right)\\
t_2 := t \cdot \left(j \cdot c - x \cdot a\right)\\
\mathbf{if}\;j \leq -1.7 \cdot 10^{+34}:\\
\;\;\;\;a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\

\mathbf{elif}\;j \leq 7 \cdot 10^{-222}:\\
\;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right) + t\_1\\

\mathbf{elif}\;j \leq 3.4 \cdot 10^{-8}:\\
\;\;\;\;t\_2 + \left(z \cdot \left(y \cdot x\right) + c \cdot \left(b \cdot \left(0 - z\right)\right)\right)\\

\mathbf{elif}\;j \leq 10^{+69}:\\
\;\;\;\;t\_2 + t\_1\\

\mathbf{else}:\\
\;\;\;\;y \cdot \left(x \cdot z - i \cdot j\right) + c \cdot \left(j \cdot t - z \cdot b\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if j < -1.7e34

    1. Initial program 69.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.7e34 < j < 7.00000000000000049e-222

    1. Initial program 80.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 7.00000000000000049e-222 < j < 3.4e-8

    1. Initial program 67.6%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Taylor expanded in a around 0 0

      \[\leadsto expr\]
    8. Simplified0

      \[\leadsto expr\]

    if 3.4e-8 < j < 1.0000000000000001e69

    1. Initial program 82.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 1.0000000000000001e69 < j

    1. Initial program 64.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 17: 76.0% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(a \cdot i - z \cdot c\right)\\ t_2 := x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{if}\;x \leq -2.9 \cdot 10^{+217}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;x \leq 5.2 \cdot 10^{+151}:\\ \;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + \left(y \cdot \left(x \cdot z - j \cdot i\right) + t\_1\right)\\ \mathbf{else}:\\ \;\;\;\;t\_2 + t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (- (* a i) (* z c)))) (t_2 (* x (- (* y z) (* a t)))))
   (if (<= x -2.9e+217)
     t_2
     (if (<= x 5.2e+151)
       (+ (* t (- (* j c) (* x a))) (+ (* y (- (* x z) (* j i))) t_1))
       (+ t_2 t_1)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((a * i) - (z * c));
	double t_2 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -2.9e+217) {
		tmp = t_2;
	} else if (x <= 5.2e+151) {
		tmp = (t * ((j * c) - (x * a))) + ((y * ((x * z) - (j * i))) + t_1);
	} else {
		tmp = t_2 + t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = b * ((a * i) - (z * c))
    t_2 = x * ((y * z) - (a * t))
    if (x <= (-2.9d+217)) then
        tmp = t_2
    else if (x <= 5.2d+151) then
        tmp = (t * ((j * c) - (x * a))) + ((y * ((x * z) - (j * i))) + t_1)
    else
        tmp = t_2 + t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((a * i) - (z * c));
	double t_2 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -2.9e+217) {
		tmp = t_2;
	} else if (x <= 5.2e+151) {
		tmp = (t * ((j * c) - (x * a))) + ((y * ((x * z) - (j * i))) + t_1);
	} else {
		tmp = t_2 + t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * ((a * i) - (z * c))
	t_2 = x * ((y * z) - (a * t))
	tmp = 0
	if x <= -2.9e+217:
		tmp = t_2
	elif x <= 5.2e+151:
		tmp = (t * ((j * c) - (x * a))) + ((y * ((x * z) - (j * i))) + t_1)
	else:
		tmp = t_2 + t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(Float64(a * i) - Float64(z * c)))
	t_2 = Float64(x * Float64(Float64(y * z) - Float64(a * t)))
	tmp = 0.0
	if (x <= -2.9e+217)
		tmp = t_2;
	elseif (x <= 5.2e+151)
		tmp = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + Float64(Float64(y * Float64(Float64(x * z) - Float64(j * i))) + t_1));
	else
		tmp = Float64(t_2 + t_1);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * ((a * i) - (z * c));
	t_2 = x * ((y * z) - (a * t));
	tmp = 0.0;
	if (x <= -2.9e+217)
		tmp = t_2;
	elseif (x <= 5.2e+151)
		tmp = (t * ((j * c) - (x * a))) + ((y * ((x * z) - (j * i))) + t_1);
	else
		tmp = t_2 + t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -2.9e+217], t$95$2, If[LessEqual[x, 5.2e+151], N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(y * N[(N[(x * z), $MachinePrecision] - N[(j * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision]), $MachinePrecision], N[(t$95$2 + t$95$1), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b \cdot \left(a \cdot i - z \cdot c\right)\\
t_2 := x \cdot \left(y \cdot z - a \cdot t\right)\\
\mathbf{if}\;x \leq -2.9 \cdot 10^{+217}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;x \leq 5.2 \cdot 10^{+151}:\\
\;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + \left(y \cdot \left(x \cdot z - j \cdot i\right) + t\_1\right)\\

\mathbf{else}:\\
\;\;\;\;t\_2 + t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -2.89999999999999985e217

    1. Initial program 57.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -2.89999999999999985e217 < x < 5.20000000000000026e151

    1. Initial program 75.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 5.20000000000000026e151 < x

    1. Initial program 66.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 18: 59.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{if}\;x \leq -3.5 \cdot 10^{+160}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \leq -9 \cdot 10^{-96}:\\ \;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\ \mathbf{elif}\;x \leq 1.8 \cdot 10^{-84}:\\ \;\;\;\;c \cdot \left(t \cdot j - z \cdot b\right) - i \cdot \left(y \cdot j\right)\\ \mathbf{elif}\;x \leq 3.6 \cdot 10^{+116}:\\ \;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + i \cdot \left(b \cdot a\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* x (- (* y z) (* a t)))))
   (if (<= x -3.5e+160)
     t_1
     (if (<= x -9e-96)
       (+ (* y (* x z)) (* a (- (* b i) (* x t))))
       (if (<= x 1.8e-84)
         (- (* c (- (* t j) (* z b))) (* i (* y j)))
         (if (<= x 3.6e+116)
           (+ (* t (- (* j c) (* x a))) (* i (* b a)))
           t_1))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -3.5e+160) {
		tmp = t_1;
	} else if (x <= -9e-96) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= 1.8e-84) {
		tmp = (c * ((t * j) - (z * b))) - (i * (y * j));
	} else if (x <= 3.6e+116) {
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = x * ((y * z) - (a * t))
    if (x <= (-3.5d+160)) then
        tmp = t_1
    else if (x <= (-9d-96)) then
        tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
    else if (x <= 1.8d-84) then
        tmp = (c * ((t * j) - (z * b))) - (i * (y * j))
    else if (x <= 3.6d+116) then
        tmp = (t * ((j * c) - (x * a))) + (i * (b * a))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = x * ((y * z) - (a * t));
	double tmp;
	if (x <= -3.5e+160) {
		tmp = t_1;
	} else if (x <= -9e-96) {
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	} else if (x <= 1.8e-84) {
		tmp = (c * ((t * j) - (z * b))) - (i * (y * j));
	} else if (x <= 3.6e+116) {
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = x * ((y * z) - (a * t))
	tmp = 0
	if x <= -3.5e+160:
		tmp = t_1
	elif x <= -9e-96:
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)))
	elif x <= 1.8e-84:
		tmp = (c * ((t * j) - (z * b))) - (i * (y * j))
	elif x <= 3.6e+116:
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(x * Float64(Float64(y * z) - Float64(a * t)))
	tmp = 0.0
	if (x <= -3.5e+160)
		tmp = t_1;
	elseif (x <= -9e-96)
		tmp = Float64(Float64(y * Float64(x * z)) + Float64(a * Float64(Float64(b * i) - Float64(x * t))));
	elseif (x <= 1.8e-84)
		tmp = Float64(Float64(c * Float64(Float64(t * j) - Float64(z * b))) - Float64(i * Float64(y * j)));
	elseif (x <= 3.6e+116)
		tmp = Float64(Float64(t * Float64(Float64(j * c) - Float64(x * a))) + Float64(i * Float64(b * a)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = x * ((y * z) - (a * t));
	tmp = 0.0;
	if (x <= -3.5e+160)
		tmp = t_1;
	elseif (x <= -9e-96)
		tmp = (y * (x * z)) + (a * ((b * i) - (x * t)));
	elseif (x <= 1.8e-84)
		tmp = (c * ((t * j) - (z * b))) - (i * (y * j));
	elseif (x <= 3.6e+116)
		tmp = (t * ((j * c) - (x * a))) + (i * (b * a));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -3.5e+160], t$95$1, If[LessEqual[x, -9e-96], N[(N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision] + N[(a * N[(N[(b * i), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 1.8e-84], N[(N[(c * N[(N[(t * j), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 3.6e+116], N[(N[(t * N[(N[(j * c), $MachinePrecision] - N[(x * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x \cdot \left(y \cdot z - a \cdot t\right)\\
\mathbf{if}\;x \leq -3.5 \cdot 10^{+160}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \leq -9 \cdot 10^{-96}:\\
\;\;\;\;y \cdot \left(x \cdot z\right) + a \cdot \left(b \cdot i - x \cdot t\right)\\

\mathbf{elif}\;x \leq 1.8 \cdot 10^{-84}:\\
\;\;\;\;c \cdot \left(t \cdot j - z \cdot b\right) - i \cdot \left(y \cdot j\right)\\

\mathbf{elif}\;x \leq 3.6 \cdot 10^{+116}:\\
\;\;\;\;t \cdot \left(j \cdot c - x \cdot a\right) + i \cdot \left(b \cdot a\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if x < -3.50000000000000026e160 or 3.59999999999999971e116 < x

    1. Initial program 65.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -3.50000000000000026e160 < x < -9e-96

    1. Initial program 79.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    8. Simplified0

      \[\leadsto expr\]

    if -9e-96 < x < 1.80000000000000002e-84

    1. Initial program 69.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in c around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.80000000000000002e-84 < x < 3.59999999999999971e116

    1. Initial program 84.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 19: 51.3% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\ \mathbf{if}\;j \leq -1.52 \cdot 10^{+34}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq -3.6 \cdot 10^{-186}:\\ \;\;\;\;y \cdot \left(x \cdot z - \frac{x \cdot \left(a \cdot t\right)}{y}\right)\\ \mathbf{elif}\;j \leq 5.8 \cdot 10^{-225}:\\ \;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{elif}\;j \leq 4.4 \cdot 10^{-129}:\\ \;\;\;\;\left(x \cdot z\right) \cdot \left(y - \frac{b \cdot c}{x}\right)\\ \mathbf{elif}\;j \leq 1.15 \cdot 10^{+15}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* t c) (* y i)))))
   (if (<= j -1.52e+34)
     t_1
     (if (<= j -3.6e-186)
       (* y (- (* x z) (/ (* x (* a t)) y)))
       (if (<= j 5.8e-225)
         (* b (- (* a i) (* z c)))
         (if (<= j 4.4e-129)
           (* (* x z) (- y (/ (* b c) x)))
           (if (<= j 1.15e+15) (* a (- (* i b) (* x t))) t_1)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.52e+34) {
		tmp = t_1;
	} else if (j <= -3.6e-186) {
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	} else if (j <= 5.8e-225) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 4.4e-129) {
		tmp = (x * z) * (y - ((b * c) / x));
	} else if (j <= 1.15e+15) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = j * ((t * c) - (y * i))
    if (j <= (-1.52d+34)) then
        tmp = t_1
    else if (j <= (-3.6d-186)) then
        tmp = y * ((x * z) - ((x * (a * t)) / y))
    else if (j <= 5.8d-225) then
        tmp = b * ((a * i) - (z * c))
    else if (j <= 4.4d-129) then
        tmp = (x * z) * (y - ((b * c) / x))
    else if (j <= 1.15d+15) then
        tmp = a * ((i * b) - (x * t))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.52e+34) {
		tmp = t_1;
	} else if (j <= -3.6e-186) {
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	} else if (j <= 5.8e-225) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 4.4e-129) {
		tmp = (x * z) * (y - ((b * c) / x));
	} else if (j <= 1.15e+15) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((t * c) - (y * i))
	tmp = 0
	if j <= -1.52e+34:
		tmp = t_1
	elif j <= -3.6e-186:
		tmp = y * ((x * z) - ((x * (a * t)) / y))
	elif j <= 5.8e-225:
		tmp = b * ((a * i) - (z * c))
	elif j <= 4.4e-129:
		tmp = (x * z) * (y - ((b * c) / x))
	elif j <= 1.15e+15:
		tmp = a * ((i * b) - (x * t))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(t * c) - Float64(y * i)))
	tmp = 0.0
	if (j <= -1.52e+34)
		tmp = t_1;
	elseif (j <= -3.6e-186)
		tmp = Float64(y * Float64(Float64(x * z) - Float64(Float64(x * Float64(a * t)) / y)));
	elseif (j <= 5.8e-225)
		tmp = Float64(b * Float64(Float64(a * i) - Float64(z * c)));
	elseif (j <= 4.4e-129)
		tmp = Float64(Float64(x * z) * Float64(y - Float64(Float64(b * c) / x)));
	elseif (j <= 1.15e+15)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((t * c) - (y * i));
	tmp = 0.0;
	if (j <= -1.52e+34)
		tmp = t_1;
	elseif (j <= -3.6e-186)
		tmp = y * ((x * z) - ((x * (a * t)) / y));
	elseif (j <= 5.8e-225)
		tmp = b * ((a * i) - (z * c));
	elseif (j <= 4.4e-129)
		tmp = (x * z) * (y - ((b * c) / x));
	elseif (j <= 1.15e+15)
		tmp = a * ((i * b) - (x * t));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(t * c), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -1.52e+34], t$95$1, If[LessEqual[j, -3.6e-186], N[(y * N[(N[(x * z), $MachinePrecision] - N[(N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 5.8e-225], N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 4.4e-129], N[(N[(x * z), $MachinePrecision] * N[(y - N[(N[(b * c), $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 1.15e+15], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\
\mathbf{if}\;j \leq -1.52 \cdot 10^{+34}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;j \leq -3.6 \cdot 10^{-186}:\\
\;\;\;\;y \cdot \left(x \cdot z - \frac{x \cdot \left(a \cdot t\right)}{y}\right)\\

\mathbf{elif}\;j \leq 5.8 \cdot 10^{-225}:\\
\;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\

\mathbf{elif}\;j \leq 4.4 \cdot 10^{-129}:\\
\;\;\;\;\left(x \cdot z\right) \cdot \left(y - \frac{b \cdot c}{x}\right)\\

\mathbf{elif}\;j \leq 1.15 \cdot 10^{+15}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if j < -1.52000000000000001e34 or 1.15e15 < j

    1. Initial program 68.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.52000000000000001e34 < j < -3.5999999999999998e-186

    1. Initial program 81.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -3.5999999999999998e-186 < j < 5.7999999999999996e-225

    1. Initial program 79.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 5.7999999999999996e-225 < j < 4.40000000000000006e-129

    1. Initial program 66.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around -inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 4.40000000000000006e-129 < j < 1.15e15

    1. Initial program 73.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 20: 49.8% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\ \mathbf{if}\;j \leq -1.75 \cdot 10^{+172}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq -3.8 \cdot 10^{-214}:\\ \;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{elif}\;j \leq 4.2 \cdot 10^{-222}:\\ \;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{elif}\;j \leq 9.2 \cdot 10^{-129}:\\ \;\;\;\;\left(x \cdot z\right) \cdot \left(y - \frac{b \cdot c}{x}\right)\\ \mathbf{elif}\;j \leq 2.05 \cdot 10^{+15}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* t c) (* y i)))))
   (if (<= j -1.75e+172)
     t_1
     (if (<= j -3.8e-214)
       (* x (- (* y z) (* a t)))
       (if (<= j 4.2e-222)
         (* b (- (* a i) (* z c)))
         (if (<= j 9.2e-129)
           (* (* x z) (- y (/ (* b c) x)))
           (if (<= j 2.05e+15) (* a (- (* i b) (* x t))) t_1)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.75e+172) {
		tmp = t_1;
	} else if (j <= -3.8e-214) {
		tmp = x * ((y * z) - (a * t));
	} else if (j <= 4.2e-222) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 9.2e-129) {
		tmp = (x * z) * (y - ((b * c) / x));
	} else if (j <= 2.05e+15) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = j * ((t * c) - (y * i))
    if (j <= (-1.75d+172)) then
        tmp = t_1
    else if (j <= (-3.8d-214)) then
        tmp = x * ((y * z) - (a * t))
    else if (j <= 4.2d-222) then
        tmp = b * ((a * i) - (z * c))
    else if (j <= 9.2d-129) then
        tmp = (x * z) * (y - ((b * c) / x))
    else if (j <= 2.05d+15) then
        tmp = a * ((i * b) - (x * t))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.75e+172) {
		tmp = t_1;
	} else if (j <= -3.8e-214) {
		tmp = x * ((y * z) - (a * t));
	} else if (j <= 4.2e-222) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 9.2e-129) {
		tmp = (x * z) * (y - ((b * c) / x));
	} else if (j <= 2.05e+15) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((t * c) - (y * i))
	tmp = 0
	if j <= -1.75e+172:
		tmp = t_1
	elif j <= -3.8e-214:
		tmp = x * ((y * z) - (a * t))
	elif j <= 4.2e-222:
		tmp = b * ((a * i) - (z * c))
	elif j <= 9.2e-129:
		tmp = (x * z) * (y - ((b * c) / x))
	elif j <= 2.05e+15:
		tmp = a * ((i * b) - (x * t))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(t * c) - Float64(y * i)))
	tmp = 0.0
	if (j <= -1.75e+172)
		tmp = t_1;
	elseif (j <= -3.8e-214)
		tmp = Float64(x * Float64(Float64(y * z) - Float64(a * t)));
	elseif (j <= 4.2e-222)
		tmp = Float64(b * Float64(Float64(a * i) - Float64(z * c)));
	elseif (j <= 9.2e-129)
		tmp = Float64(Float64(x * z) * Float64(y - Float64(Float64(b * c) / x)));
	elseif (j <= 2.05e+15)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((t * c) - (y * i));
	tmp = 0.0;
	if (j <= -1.75e+172)
		tmp = t_1;
	elseif (j <= -3.8e-214)
		tmp = x * ((y * z) - (a * t));
	elseif (j <= 4.2e-222)
		tmp = b * ((a * i) - (z * c));
	elseif (j <= 9.2e-129)
		tmp = (x * z) * (y - ((b * c) / x));
	elseif (j <= 2.05e+15)
		tmp = a * ((i * b) - (x * t));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(t * c), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -1.75e+172], t$95$1, If[LessEqual[j, -3.8e-214], N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 4.2e-222], N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 9.2e-129], N[(N[(x * z), $MachinePrecision] * N[(y - N[(N[(b * c), $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 2.05e+15], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\
\mathbf{if}\;j \leq -1.75 \cdot 10^{+172}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;j \leq -3.8 \cdot 10^{-214}:\\
\;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right)\\

\mathbf{elif}\;j \leq 4.2 \cdot 10^{-222}:\\
\;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\

\mathbf{elif}\;j \leq 9.2 \cdot 10^{-129}:\\
\;\;\;\;\left(x \cdot z\right) \cdot \left(y - \frac{b \cdot c}{x}\right)\\

\mathbf{elif}\;j \leq 2.05 \cdot 10^{+15}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if j < -1.74999999999999989e172 or 2.05e15 < j

    1. Initial program 69.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.74999999999999989e172 < j < -3.8000000000000003e-214

    1. Initial program 74.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -3.8000000000000003e-214 < j < 4.1999999999999998e-222

    1. Initial program 79.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 4.1999999999999998e-222 < j < 9.1999999999999998e-129

    1. Initial program 66.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around -inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in z around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 9.1999999999999998e-129 < j < 2.05e15

    1. Initial program 73.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 21: 49.8% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\ \mathbf{if}\;j \leq -3.4 \cdot 10^{+137}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq -5.2 \cdot 10^{-33}:\\ \;\;\;\;i \cdot \left(a \cdot b - y \cdot j\right)\\ \mathbf{elif}\;j \leq -7.5 \cdot 10^{-104}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;j \leq 7.2 \cdot 10^{-172}:\\ \;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{elif}\;j \leq 6.8 \cdot 10^{+14}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* t c) (* y i)))))
   (if (<= j -3.4e+137)
     t_1
     (if (<= j -5.2e-33)
       (* i (- (* a b) (* y j)))
       (if (<= j -7.5e-104)
         (* y (* x z))
         (if (<= j 7.2e-172)
           (* b (- (* a i) (* z c)))
           (if (<= j 6.8e+14) (* a (- (* i b) (* x t))) t_1)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -3.4e+137) {
		tmp = t_1;
	} else if (j <= -5.2e-33) {
		tmp = i * ((a * b) - (y * j));
	} else if (j <= -7.5e-104) {
		tmp = y * (x * z);
	} else if (j <= 7.2e-172) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 6.8e+14) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = j * ((t * c) - (y * i))
    if (j <= (-3.4d+137)) then
        tmp = t_1
    else if (j <= (-5.2d-33)) then
        tmp = i * ((a * b) - (y * j))
    else if (j <= (-7.5d-104)) then
        tmp = y * (x * z)
    else if (j <= 7.2d-172) then
        tmp = b * ((a * i) - (z * c))
    else if (j <= 6.8d+14) then
        tmp = a * ((i * b) - (x * t))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -3.4e+137) {
		tmp = t_1;
	} else if (j <= -5.2e-33) {
		tmp = i * ((a * b) - (y * j));
	} else if (j <= -7.5e-104) {
		tmp = y * (x * z);
	} else if (j <= 7.2e-172) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 6.8e+14) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((t * c) - (y * i))
	tmp = 0
	if j <= -3.4e+137:
		tmp = t_1
	elif j <= -5.2e-33:
		tmp = i * ((a * b) - (y * j))
	elif j <= -7.5e-104:
		tmp = y * (x * z)
	elif j <= 7.2e-172:
		tmp = b * ((a * i) - (z * c))
	elif j <= 6.8e+14:
		tmp = a * ((i * b) - (x * t))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(t * c) - Float64(y * i)))
	tmp = 0.0
	if (j <= -3.4e+137)
		tmp = t_1;
	elseif (j <= -5.2e-33)
		tmp = Float64(i * Float64(Float64(a * b) - Float64(y * j)));
	elseif (j <= -7.5e-104)
		tmp = Float64(y * Float64(x * z));
	elseif (j <= 7.2e-172)
		tmp = Float64(b * Float64(Float64(a * i) - Float64(z * c)));
	elseif (j <= 6.8e+14)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((t * c) - (y * i));
	tmp = 0.0;
	if (j <= -3.4e+137)
		tmp = t_1;
	elseif (j <= -5.2e-33)
		tmp = i * ((a * b) - (y * j));
	elseif (j <= -7.5e-104)
		tmp = y * (x * z);
	elseif (j <= 7.2e-172)
		tmp = b * ((a * i) - (z * c));
	elseif (j <= 6.8e+14)
		tmp = a * ((i * b) - (x * t));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(t * c), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -3.4e+137], t$95$1, If[LessEqual[j, -5.2e-33], N[(i * N[(N[(a * b), $MachinePrecision] - N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, -7.5e-104], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 7.2e-172], N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 6.8e+14], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\
\mathbf{if}\;j \leq -3.4 \cdot 10^{+137}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;j \leq -5.2 \cdot 10^{-33}:\\
\;\;\;\;i \cdot \left(a \cdot b - y \cdot j\right)\\

\mathbf{elif}\;j \leq -7.5 \cdot 10^{-104}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;j \leq 7.2 \cdot 10^{-172}:\\
\;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\

\mathbf{elif}\;j \leq 6.8 \cdot 10^{+14}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if j < -3.39999999999999986e137 or 6.8e14 < j

    1. Initial program 68.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -3.39999999999999986e137 < j < -5.19999999999999988e-33

    1. Initial program 74.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -5.19999999999999988e-33 < j < -7.5e-104

    1. Initial program 82.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -7.5e-104 < j < 7.20000000000000029e-172

    1. Initial program 76.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 7.20000000000000029e-172 < j < 6.8e14

    1. Initial program 70.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 22: 40.5% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := c \cdot \left(t \cdot j\right)\\ \mathbf{if}\;j \leq -2.5 \cdot 10^{+142}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq -2.4 \cdot 10^{+95}:\\ \;\;\;\;0 - i \cdot \left(y \cdot j\right)\\ \mathbf{elif}\;j \leq 7.5 \cdot 10^{+15}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{elif}\;j \leq 1.35 \cdot 10^{+54}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \mathbf{elif}\;j \leq 2 \cdot 10^{+190}:\\ \;\;\;\;y \cdot \left(j \cdot \left(-i\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* c (* t j))))
   (if (<= j -2.5e+142)
     t_1
     (if (<= j -2.4e+95)
       (- 0.0 (* i (* y j)))
       (if (<= j 7.5e+15)
         (* a (- (* i b) (* x t)))
         (if (<= j 1.35e+54)
           (* j (* c t))
           (if (<= j 2e+190) (* y (* j (- i))) t_1)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * (t * j);
	double tmp;
	if (j <= -2.5e+142) {
		tmp = t_1;
	} else if (j <= -2.4e+95) {
		tmp = 0.0 - (i * (y * j));
	} else if (j <= 7.5e+15) {
		tmp = a * ((i * b) - (x * t));
	} else if (j <= 1.35e+54) {
		tmp = j * (c * t);
	} else if (j <= 2e+190) {
		tmp = y * (j * -i);
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = c * (t * j)
    if (j <= (-2.5d+142)) then
        tmp = t_1
    else if (j <= (-2.4d+95)) then
        tmp = 0.0d0 - (i * (y * j))
    else if (j <= 7.5d+15) then
        tmp = a * ((i * b) - (x * t))
    else if (j <= 1.35d+54) then
        tmp = j * (c * t)
    else if (j <= 2d+190) then
        tmp = y * (j * -i)
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * (t * j);
	double tmp;
	if (j <= -2.5e+142) {
		tmp = t_1;
	} else if (j <= -2.4e+95) {
		tmp = 0.0 - (i * (y * j));
	} else if (j <= 7.5e+15) {
		tmp = a * ((i * b) - (x * t));
	} else if (j <= 1.35e+54) {
		tmp = j * (c * t);
	} else if (j <= 2e+190) {
		tmp = y * (j * -i);
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = c * (t * j)
	tmp = 0
	if j <= -2.5e+142:
		tmp = t_1
	elif j <= -2.4e+95:
		tmp = 0.0 - (i * (y * j))
	elif j <= 7.5e+15:
		tmp = a * ((i * b) - (x * t))
	elif j <= 1.35e+54:
		tmp = j * (c * t)
	elif j <= 2e+190:
		tmp = y * (j * -i)
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(c * Float64(t * j))
	tmp = 0.0
	if (j <= -2.5e+142)
		tmp = t_1;
	elseif (j <= -2.4e+95)
		tmp = Float64(0.0 - Float64(i * Float64(y * j)));
	elseif (j <= 7.5e+15)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	elseif (j <= 1.35e+54)
		tmp = Float64(j * Float64(c * t));
	elseif (j <= 2e+190)
		tmp = Float64(y * Float64(j * Float64(-i)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = c * (t * j);
	tmp = 0.0;
	if (j <= -2.5e+142)
		tmp = t_1;
	elseif (j <= -2.4e+95)
		tmp = 0.0 - (i * (y * j));
	elseif (j <= 7.5e+15)
		tmp = a * ((i * b) - (x * t));
	elseif (j <= 1.35e+54)
		tmp = j * (c * t);
	elseif (j <= 2e+190)
		tmp = y * (j * -i);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(c * N[(t * j), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -2.5e+142], t$95$1, If[LessEqual[j, -2.4e+95], N[(0.0 - N[(i * N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 7.5e+15], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 1.35e+54], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 2e+190], N[(y * N[(j * (-i)), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := c \cdot \left(t \cdot j\right)\\
\mathbf{if}\;j \leq -2.5 \cdot 10^{+142}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;j \leq -2.4 \cdot 10^{+95}:\\
\;\;\;\;0 - i \cdot \left(y \cdot j\right)\\

\mathbf{elif}\;j \leq 7.5 \cdot 10^{+15}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{elif}\;j \leq 1.35 \cdot 10^{+54}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\

\mathbf{elif}\;j \leq 2 \cdot 10^{+190}:\\
\;\;\;\;y \cdot \left(j \cdot \left(-i\right)\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if j < -2.5000000000000001e142 or 2.0000000000000001e190 < j

    1. Initial program 66.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -2.5000000000000001e142 < j < -2.4e95

    1. Initial program 59.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -2.4e95 < j < 7.5e15

    1. Initial program 75.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 7.5e15 < j < 1.35000000000000005e54

    1. Initial program 62.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.35000000000000005e54 < j < 2.0000000000000001e190

    1. Initial program 74.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 23: 28.9% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -4.6 \cdot 10^{+135}:\\ \;\;\;\;\left(c \cdot j\right) \cdot t\\ \mathbf{elif}\;c \leq -14000:\\ \;\;\;\;-x \cdot \left(a \cdot t\right)\\ \mathbf{elif}\;c \leq 2.35 \cdot 10^{-296}:\\ \;\;\;\;\left(a \cdot i\right) \cdot b\\ \mathbf{elif}\;c \leq 1.15 \cdot 10^{-85}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{elif}\;c \leq 5.2 \cdot 10^{+129}:\\ \;\;\;\;y \cdot \left(j \cdot \left(-i\right)\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -4.6e+135)
   (* (* c j) t)
   (if (<= c -14000.0)
     (- (* x (* a t)))
     (if (<= c 2.35e-296)
       (* (* a i) b)
       (if (<= c 1.15e-85)
         (* y (* x z))
         (if (<= c 5.2e+129) (* y (* j (- i))) (* j (* c t))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -4.6e+135) {
		tmp = (c * j) * t;
	} else if (c <= -14000.0) {
		tmp = -(x * (a * t));
	} else if (c <= 2.35e-296) {
		tmp = (a * i) * b;
	} else if (c <= 1.15e-85) {
		tmp = y * (x * z);
	} else if (c <= 5.2e+129) {
		tmp = y * (j * -i);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-4.6d+135)) then
        tmp = (c * j) * t
    else if (c <= (-14000.0d0)) then
        tmp = -(x * (a * t))
    else if (c <= 2.35d-296) then
        tmp = (a * i) * b
    else if (c <= 1.15d-85) then
        tmp = y * (x * z)
    else if (c <= 5.2d+129) then
        tmp = y * (j * -i)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -4.6e+135) {
		tmp = (c * j) * t;
	} else if (c <= -14000.0) {
		tmp = -(x * (a * t));
	} else if (c <= 2.35e-296) {
		tmp = (a * i) * b;
	} else if (c <= 1.15e-85) {
		tmp = y * (x * z);
	} else if (c <= 5.2e+129) {
		tmp = y * (j * -i);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -4.6e+135:
		tmp = (c * j) * t
	elif c <= -14000.0:
		tmp = -(x * (a * t))
	elif c <= 2.35e-296:
		tmp = (a * i) * b
	elif c <= 1.15e-85:
		tmp = y * (x * z)
	elif c <= 5.2e+129:
		tmp = y * (j * -i)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -4.6e+135)
		tmp = Float64(Float64(c * j) * t);
	elseif (c <= -14000.0)
		tmp = Float64(-Float64(x * Float64(a * t)));
	elseif (c <= 2.35e-296)
		tmp = Float64(Float64(a * i) * b);
	elseif (c <= 1.15e-85)
		tmp = Float64(y * Float64(x * z));
	elseif (c <= 5.2e+129)
		tmp = Float64(y * Float64(j * Float64(-i)));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -4.6e+135)
		tmp = (c * j) * t;
	elseif (c <= -14000.0)
		tmp = -(x * (a * t));
	elseif (c <= 2.35e-296)
		tmp = (a * i) * b;
	elseif (c <= 1.15e-85)
		tmp = y * (x * z);
	elseif (c <= 5.2e+129)
		tmp = y * (j * -i);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -4.6e+135], N[(N[(c * j), $MachinePrecision] * t), $MachinePrecision], If[LessEqual[c, -14000.0], (-N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision]), If[LessEqual[c, 2.35e-296], N[(N[(a * i), $MachinePrecision] * b), $MachinePrecision], If[LessEqual[c, 1.15e-85], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 5.2e+129], N[(y * N[(j * (-i)), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -4.6 \cdot 10^{+135}:\\
\;\;\;\;\left(c \cdot j\right) \cdot t\\

\mathbf{elif}\;c \leq -14000:\\
\;\;\;\;-x \cdot \left(a \cdot t\right)\\

\mathbf{elif}\;c \leq 2.35 \cdot 10^{-296}:\\
\;\;\;\;\left(a \cdot i\right) \cdot b\\

\mathbf{elif}\;c \leq 1.15 \cdot 10^{-85}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{elif}\;c \leq 5.2 \cdot 10^{+129}:\\
\;\;\;\;y \cdot \left(j \cdot \left(-i\right)\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 6 regimes
  2. if c < -4.6000000000000002e135

    1. Initial program 55.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -4.6000000000000002e135 < c < -14000

    1. Initial program 67.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -14000 < c < 2.35e-296

    1. Initial program 83.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if 2.35e-296 < c < 1.15e-85

    1. Initial program 77.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.15e-85 < c < 5.20000000000000024e129

    1. Initial program 73.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 5.20000000000000024e129 < c

    1. Initial program 66.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 6 regimes into one program.
  4. Add Preprocessing

Alternative 24: 50.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\ \mathbf{if}\;j \leq -1.5 \cdot 10^{+172}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq -2.7 \cdot 10^{-214}:\\ \;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right)\\ \mathbf{elif}\;j \leq 1.4 \cdot 10^{-171}:\\ \;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{elif}\;j \leq 7.2 \cdot 10^{+14}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* t c) (* y i)))))
   (if (<= j -1.5e+172)
     t_1
     (if (<= j -2.7e-214)
       (* x (- (* y z) (* a t)))
       (if (<= j 1.4e-171)
         (* b (- (* a i) (* z c)))
         (if (<= j 7.2e+14) (* a (- (* i b) (* x t))) t_1))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.5e+172) {
		tmp = t_1;
	} else if (j <= -2.7e-214) {
		tmp = x * ((y * z) - (a * t));
	} else if (j <= 1.4e-171) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 7.2e+14) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = j * ((t * c) - (y * i))
    if (j <= (-1.5d+172)) then
        tmp = t_1
    else if (j <= (-2.7d-214)) then
        tmp = x * ((y * z) - (a * t))
    else if (j <= 1.4d-171) then
        tmp = b * ((a * i) - (z * c))
    else if (j <= 7.2d+14) then
        tmp = a * ((i * b) - (x * t))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((t * c) - (y * i));
	double tmp;
	if (j <= -1.5e+172) {
		tmp = t_1;
	} else if (j <= -2.7e-214) {
		tmp = x * ((y * z) - (a * t));
	} else if (j <= 1.4e-171) {
		tmp = b * ((a * i) - (z * c));
	} else if (j <= 7.2e+14) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((t * c) - (y * i))
	tmp = 0
	if j <= -1.5e+172:
		tmp = t_1
	elif j <= -2.7e-214:
		tmp = x * ((y * z) - (a * t))
	elif j <= 1.4e-171:
		tmp = b * ((a * i) - (z * c))
	elif j <= 7.2e+14:
		tmp = a * ((i * b) - (x * t))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(t * c) - Float64(y * i)))
	tmp = 0.0
	if (j <= -1.5e+172)
		tmp = t_1;
	elseif (j <= -2.7e-214)
		tmp = Float64(x * Float64(Float64(y * z) - Float64(a * t)));
	elseif (j <= 1.4e-171)
		tmp = Float64(b * Float64(Float64(a * i) - Float64(z * c)));
	elseif (j <= 7.2e+14)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((t * c) - (y * i));
	tmp = 0.0;
	if (j <= -1.5e+172)
		tmp = t_1;
	elseif (j <= -2.7e-214)
		tmp = x * ((y * z) - (a * t));
	elseif (j <= 1.4e-171)
		tmp = b * ((a * i) - (z * c));
	elseif (j <= 7.2e+14)
		tmp = a * ((i * b) - (x * t));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(t * c), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -1.5e+172], t$95$1, If[LessEqual[j, -2.7e-214], N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 1.4e-171], N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 7.2e+14], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := j \cdot \left(t \cdot c - y \cdot i\right)\\
\mathbf{if}\;j \leq -1.5 \cdot 10^{+172}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;j \leq -2.7 \cdot 10^{-214}:\\
\;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right)\\

\mathbf{elif}\;j \leq 1.4 \cdot 10^{-171}:\\
\;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\

\mathbf{elif}\;j \leq 7.2 \cdot 10^{+14}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if j < -1.5e172 or 7.2e14 < j

    1. Initial program 69.0%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.5e172 < j < -2.7000000000000001e-214

    1. Initial program 74.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -2.7000000000000001e-214 < j < 1.40000000000000011e-171

    1. Initial program 76.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 1.40000000000000011e-171 < j < 7.2e14

    1. Initial program 70.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 25: 68.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\ \mathbf{if}\;j \leq -1.7 \cdot 10^{+34}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq 3.1 \cdot 10^{+25}:\\ \;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right) + b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (+ (* a (* i b)) (* j (- (* c t) (* i y))))))
   (if (<= j -1.7e+34)
     t_1
     (if (<= j 3.1e+25)
       (+ (* x (- (* y z) (* a t))) (* b (- (* a i) (* z c))))
       t_1))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	double tmp;
	if (j <= -1.7e+34) {
		tmp = t_1;
	} else if (j <= 3.1e+25) {
		tmp = (x * ((y * z) - (a * t))) + (b * ((a * i) - (z * c)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)))
    if (j <= (-1.7d+34)) then
        tmp = t_1
    else if (j <= 3.1d+25) then
        tmp = (x * ((y * z) - (a * t))) + (b * ((a * i) - (z * c)))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	double tmp;
	if (j <= -1.7e+34) {
		tmp = t_1;
	} else if (j <= 3.1e+25) {
		tmp = (x * ((y * z) - (a * t))) + (b * ((a * i) - (z * c)));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)))
	tmp = 0
	if j <= -1.7e+34:
		tmp = t_1
	elif j <= 3.1e+25:
		tmp = (x * ((y * z) - (a * t))) + (b * ((a * i) - (z * c)))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(Float64(a * Float64(i * b)) + Float64(j * Float64(Float64(c * t) - Float64(i * y))))
	tmp = 0.0
	if (j <= -1.7e+34)
		tmp = t_1;
	elseif (j <= 3.1e+25)
		tmp = Float64(Float64(x * Float64(Float64(y * z) - Float64(a * t))) + Float64(b * Float64(Float64(a * i) - Float64(z * c))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = (a * (i * b)) + (j * ((c * t) - (i * y)));
	tmp = 0.0;
	if (j <= -1.7e+34)
		tmp = t_1;
	elseif (j <= 3.1e+25)
		tmp = (x * ((y * z) - (a * t))) + (b * ((a * i) - (z * c)));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * t), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -1.7e+34], t$95$1, If[LessEqual[j, 3.1e+25], N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(i \cdot b\right) + j \cdot \left(c \cdot t - i \cdot y\right)\\
\mathbf{if}\;j \leq -1.7 \cdot 10^{+34}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;j \leq 3.1 \cdot 10^{+25}:\\
\;\;\;\;x \cdot \left(y \cdot z - a \cdot t\right) + b \cdot \left(a \cdot i - z \cdot c\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if j < -1.7e34 or 3.0999999999999998e25 < j

    1. Initial program 68.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -1.7e34 < j < 3.0999999999999998e25

    1. Initial program 75.9%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in j around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 26: 29.6% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -2.8 \cdot 10^{+135}:\\ \;\;\;\;\left(c \cdot j\right) \cdot t\\ \mathbf{elif}\;c \leq -21000:\\ \;\;\;\;-x \cdot \left(a \cdot t\right)\\ \mathbf{elif}\;c \leq 3.5 \cdot 10^{-296}:\\ \;\;\;\;\left(a \cdot i\right) \cdot b\\ \mathbf{elif}\;c \leq 5.2 \cdot 10^{+73}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -2.8e+135)
   (* (* c j) t)
   (if (<= c -21000.0)
     (- (* x (* a t)))
     (if (<= c 3.5e-296)
       (* (* a i) b)
       (if (<= c 5.2e+73) (* y (* x z)) (* j (* c t)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -2.8e+135) {
		tmp = (c * j) * t;
	} else if (c <= -21000.0) {
		tmp = -(x * (a * t));
	} else if (c <= 3.5e-296) {
		tmp = (a * i) * b;
	} else if (c <= 5.2e+73) {
		tmp = y * (x * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-2.8d+135)) then
        tmp = (c * j) * t
    else if (c <= (-21000.0d0)) then
        tmp = -(x * (a * t))
    else if (c <= 3.5d-296) then
        tmp = (a * i) * b
    else if (c <= 5.2d+73) then
        tmp = y * (x * z)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -2.8e+135) {
		tmp = (c * j) * t;
	} else if (c <= -21000.0) {
		tmp = -(x * (a * t));
	} else if (c <= 3.5e-296) {
		tmp = (a * i) * b;
	} else if (c <= 5.2e+73) {
		tmp = y * (x * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -2.8e+135:
		tmp = (c * j) * t
	elif c <= -21000.0:
		tmp = -(x * (a * t))
	elif c <= 3.5e-296:
		tmp = (a * i) * b
	elif c <= 5.2e+73:
		tmp = y * (x * z)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -2.8e+135)
		tmp = Float64(Float64(c * j) * t);
	elseif (c <= -21000.0)
		tmp = Float64(-Float64(x * Float64(a * t)));
	elseif (c <= 3.5e-296)
		tmp = Float64(Float64(a * i) * b);
	elseif (c <= 5.2e+73)
		tmp = Float64(y * Float64(x * z));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -2.8e+135)
		tmp = (c * j) * t;
	elseif (c <= -21000.0)
		tmp = -(x * (a * t));
	elseif (c <= 3.5e-296)
		tmp = (a * i) * b;
	elseif (c <= 5.2e+73)
		tmp = y * (x * z);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -2.8e+135], N[(N[(c * j), $MachinePrecision] * t), $MachinePrecision], If[LessEqual[c, -21000.0], (-N[(x * N[(a * t), $MachinePrecision]), $MachinePrecision]), If[LessEqual[c, 3.5e-296], N[(N[(a * i), $MachinePrecision] * b), $MachinePrecision], If[LessEqual[c, 5.2e+73], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -2.8 \cdot 10^{+135}:\\
\;\;\;\;\left(c \cdot j\right) \cdot t\\

\mathbf{elif}\;c \leq -21000:\\
\;\;\;\;-x \cdot \left(a \cdot t\right)\\

\mathbf{elif}\;c \leq 3.5 \cdot 10^{-296}:\\
\;\;\;\;\left(a \cdot i\right) \cdot b\\

\mathbf{elif}\;c \leq 5.2 \cdot 10^{+73}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if c < -2.80000000000000002e135

    1. Initial program 55.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -2.80000000000000002e135 < c < -21000

    1. Initial program 67.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around 0 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -21000 < c < 3.4999999999999999e-296

    1. Initial program 83.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if 3.4999999999999999e-296 < c < 5.2000000000000001e73

    1. Initial program 78.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 5.2000000000000001e73 < c

    1. Initial program 63.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 5 regimes into one program.
  4. Add Preprocessing

Alternative 27: 50.9% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := c \cdot \left(t \cdot j - z \cdot b\right)\\ \mathbf{if}\;c \leq -3.3 \cdot 10^{+61}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;c \leq 5 \cdot 10^{-134}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{elif}\;c \leq 1.9 \cdot 10^{+130}:\\ \;\;\;\;i \cdot \left(a \cdot b - y \cdot j\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* c (- (* t j) (* z b)))))
   (if (<= c -3.3e+61)
     t_1
     (if (<= c 5e-134)
       (* a (- (* i b) (* x t)))
       (if (<= c 1.9e+130) (* i (- (* a b) (* y j))) t_1)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * ((t * j) - (z * b));
	double tmp;
	if (c <= -3.3e+61) {
		tmp = t_1;
	} else if (c <= 5e-134) {
		tmp = a * ((i * b) - (x * t));
	} else if (c <= 1.9e+130) {
		tmp = i * ((a * b) - (y * j));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = c * ((t * j) - (z * b))
    if (c <= (-3.3d+61)) then
        tmp = t_1
    else if (c <= 5d-134) then
        tmp = a * ((i * b) - (x * t))
    else if (c <= 1.9d+130) then
        tmp = i * ((a * b) - (y * j))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * ((t * j) - (z * b));
	double tmp;
	if (c <= -3.3e+61) {
		tmp = t_1;
	} else if (c <= 5e-134) {
		tmp = a * ((i * b) - (x * t));
	} else if (c <= 1.9e+130) {
		tmp = i * ((a * b) - (y * j));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = c * ((t * j) - (z * b))
	tmp = 0
	if c <= -3.3e+61:
		tmp = t_1
	elif c <= 5e-134:
		tmp = a * ((i * b) - (x * t))
	elif c <= 1.9e+130:
		tmp = i * ((a * b) - (y * j))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(c * Float64(Float64(t * j) - Float64(z * b)))
	tmp = 0.0
	if (c <= -3.3e+61)
		tmp = t_1;
	elseif (c <= 5e-134)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	elseif (c <= 1.9e+130)
		tmp = Float64(i * Float64(Float64(a * b) - Float64(y * j)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = c * ((t * j) - (z * b));
	tmp = 0.0;
	if (c <= -3.3e+61)
		tmp = t_1;
	elseif (c <= 5e-134)
		tmp = a * ((i * b) - (x * t));
	elseif (c <= 1.9e+130)
		tmp = i * ((a * b) - (y * j));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(c * N[(N[(t * j), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[c, -3.3e+61], t$95$1, If[LessEqual[c, 5e-134], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 1.9e+130], N[(i * N[(N[(a * b), $MachinePrecision] - N[(y * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := c \cdot \left(t \cdot j - z \cdot b\right)\\
\mathbf{if}\;c \leq -3.3 \cdot 10^{+61}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;c \leq 5 \cdot 10^{-134}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{elif}\;c \leq 1.9 \cdot 10^{+130}:\\
\;\;\;\;i \cdot \left(a \cdot b - y \cdot j\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if c < -3.2999999999999998e61 or 1.9000000000000001e130 < c

    1. Initial program 60.4%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -3.2999999999999998e61 < c < 5.0000000000000003e-134

    1. Initial program 80.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 5.0000000000000003e-134 < c < 1.9000000000000001e130

    1. Initial program 73.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 28: 30.0% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -16200:\\ \;\;\;\;\left(c \cdot j\right) \cdot t\\ \mathbf{elif}\;c \leq 4.1 \cdot 10^{-296}:\\ \;\;\;\;\left(a \cdot i\right) \cdot b\\ \mathbf{elif}\;c \leq 1.9 \cdot 10^{+75}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -16200.0)
   (* (* c j) t)
   (if (<= c 4.1e-296)
     (* (* a i) b)
     (if (<= c 1.9e+75) (* y (* x z)) (* j (* c t))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -16200.0) {
		tmp = (c * j) * t;
	} else if (c <= 4.1e-296) {
		tmp = (a * i) * b;
	} else if (c <= 1.9e+75) {
		tmp = y * (x * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-16200.0d0)) then
        tmp = (c * j) * t
    else if (c <= 4.1d-296) then
        tmp = (a * i) * b
    else if (c <= 1.9d+75) then
        tmp = y * (x * z)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -16200.0) {
		tmp = (c * j) * t;
	} else if (c <= 4.1e-296) {
		tmp = (a * i) * b;
	} else if (c <= 1.9e+75) {
		tmp = y * (x * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -16200.0:
		tmp = (c * j) * t
	elif c <= 4.1e-296:
		tmp = (a * i) * b
	elif c <= 1.9e+75:
		tmp = y * (x * z)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -16200.0)
		tmp = Float64(Float64(c * j) * t);
	elseif (c <= 4.1e-296)
		tmp = Float64(Float64(a * i) * b);
	elseif (c <= 1.9e+75)
		tmp = Float64(y * Float64(x * z));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -16200.0)
		tmp = (c * j) * t;
	elseif (c <= 4.1e-296)
		tmp = (a * i) * b;
	elseif (c <= 1.9e+75)
		tmp = y * (x * z);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -16200.0], N[(N[(c * j), $MachinePrecision] * t), $MachinePrecision], If[LessEqual[c, 4.1e-296], N[(N[(a * i), $MachinePrecision] * b), $MachinePrecision], If[LessEqual[c, 1.9e+75], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -16200:\\
\;\;\;\;\left(c \cdot j\right) \cdot t\\

\mathbf{elif}\;c \leq 4.1 \cdot 10^{-296}:\\
\;\;\;\;\left(a \cdot i\right) \cdot b\\

\mathbf{elif}\;c \leq 1.9 \cdot 10^{+75}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if c < -16200

    1. Initial program 59.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if -16200 < c < 4.09999999999999994e-296

    1. Initial program 83.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if 4.09999999999999994e-296 < c < 1.9000000000000001e75

    1. Initial program 78.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.9000000000000001e75 < c

    1. Initial program 63.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 29: 29.6% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -24000:\\ \;\;\;\;c \cdot \left(t \cdot j\right)\\ \mathbf{elif}\;c \leq 2.25 \cdot 10^{-296}:\\ \;\;\;\;\left(a \cdot i\right) \cdot b\\ \mathbf{elif}\;c \leq 1.5 \cdot 10^{+75}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -24000.0)
   (* c (* t j))
   (if (<= c 2.25e-296)
     (* (* a i) b)
     (if (<= c 1.5e+75) (* y (* x z)) (* j (* c t))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -24000.0) {
		tmp = c * (t * j);
	} else if (c <= 2.25e-296) {
		tmp = (a * i) * b;
	} else if (c <= 1.5e+75) {
		tmp = y * (x * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-24000.0d0)) then
        tmp = c * (t * j)
    else if (c <= 2.25d-296) then
        tmp = (a * i) * b
    else if (c <= 1.5d+75) then
        tmp = y * (x * z)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -24000.0) {
		tmp = c * (t * j);
	} else if (c <= 2.25e-296) {
		tmp = (a * i) * b;
	} else if (c <= 1.5e+75) {
		tmp = y * (x * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -24000.0:
		tmp = c * (t * j)
	elif c <= 2.25e-296:
		tmp = (a * i) * b
	elif c <= 1.5e+75:
		tmp = y * (x * z)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -24000.0)
		tmp = Float64(c * Float64(t * j));
	elseif (c <= 2.25e-296)
		tmp = Float64(Float64(a * i) * b);
	elseif (c <= 1.5e+75)
		tmp = Float64(y * Float64(x * z));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -24000.0)
		tmp = c * (t * j);
	elseif (c <= 2.25e-296)
		tmp = (a * i) * b;
	elseif (c <= 1.5e+75)
		tmp = y * (x * z);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -24000.0], N[(c * N[(t * j), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 2.25e-296], N[(N[(a * i), $MachinePrecision] * b), $MachinePrecision], If[LessEqual[c, 1.5e+75], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -24000:\\
\;\;\;\;c \cdot \left(t \cdot j\right)\\

\mathbf{elif}\;c \leq 2.25 \cdot 10^{-296}:\\
\;\;\;\;\left(a \cdot i\right) \cdot b\\

\mathbf{elif}\;c \leq 1.5 \cdot 10^{+75}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if c < -24000

    1. Initial program 59.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -24000 < c < 2.2500000000000001e-296

    1. Initial program 83.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
    7. Applied egg-rr0

      \[\leadsto expr\]

    if 2.2500000000000001e-296 < c < 1.5e75

    1. Initial program 78.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 1.5e75 < c

    1. Initial program 63.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 30: 29.4% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -27000:\\ \;\;\;\;c \cdot \left(t \cdot j\right)\\ \mathbf{elif}\;c \leq 3.5 \cdot 10^{-296}:\\ \;\;\;\;i \cdot \left(b \cdot a\right)\\ \mathbf{elif}\;c \leq 5.1 \cdot 10^{+73}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -27000.0)
   (* c (* t j))
   (if (<= c 3.5e-296)
     (* i (* b a))
     (if (<= c 5.1e+73) (* y (* x z)) (* j (* c t))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -27000.0) {
		tmp = c * (t * j);
	} else if (c <= 3.5e-296) {
		tmp = i * (b * a);
	} else if (c <= 5.1e+73) {
		tmp = y * (x * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-27000.0d0)) then
        tmp = c * (t * j)
    else if (c <= 3.5d-296) then
        tmp = i * (b * a)
    else if (c <= 5.1d+73) then
        tmp = y * (x * z)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -27000.0) {
		tmp = c * (t * j);
	} else if (c <= 3.5e-296) {
		tmp = i * (b * a);
	} else if (c <= 5.1e+73) {
		tmp = y * (x * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -27000.0:
		tmp = c * (t * j)
	elif c <= 3.5e-296:
		tmp = i * (b * a)
	elif c <= 5.1e+73:
		tmp = y * (x * z)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -27000.0)
		tmp = Float64(c * Float64(t * j));
	elseif (c <= 3.5e-296)
		tmp = Float64(i * Float64(b * a));
	elseif (c <= 5.1e+73)
		tmp = Float64(y * Float64(x * z));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -27000.0)
		tmp = c * (t * j);
	elseif (c <= 3.5e-296)
		tmp = i * (b * a);
	elseif (c <= 5.1e+73)
		tmp = y * (x * z);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -27000.0], N[(c * N[(t * j), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 3.5e-296], N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 5.1e+73], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -27000:\\
\;\;\;\;c \cdot \left(t \cdot j\right)\\

\mathbf{elif}\;c \leq 3.5 \cdot 10^{-296}:\\
\;\;\;\;i \cdot \left(b \cdot a\right)\\

\mathbf{elif}\;c \leq 5.1 \cdot 10^{+73}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if c < -27000

    1. Initial program 59.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -27000 < c < 3.4999999999999999e-296

    1. Initial program 83.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 3.4999999999999999e-296 < c < 5.10000000000000024e73

    1. Initial program 78.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 5.10000000000000024e73 < c

    1. Initial program 63.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 31: 29.2% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -24000:\\ \;\;\;\;c \cdot \left(t \cdot j\right)\\ \mathbf{elif}\;c \leq 2.2 \cdot 10^{-296}:\\ \;\;\;\;i \cdot \left(b \cdot a\right)\\ \mathbf{elif}\;c \leq 6 \cdot 10^{+73}:\\ \;\;\;\;x \cdot \left(y \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -24000.0)
   (* c (* t j))
   (if (<= c 2.2e-296)
     (* i (* b a))
     (if (<= c 6e+73) (* x (* y z)) (* j (* c t))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -24000.0) {
		tmp = c * (t * j);
	} else if (c <= 2.2e-296) {
		tmp = i * (b * a);
	} else if (c <= 6e+73) {
		tmp = x * (y * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-24000.0d0)) then
        tmp = c * (t * j)
    else if (c <= 2.2d-296) then
        tmp = i * (b * a)
    else if (c <= 6d+73) then
        tmp = x * (y * z)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -24000.0) {
		tmp = c * (t * j);
	} else if (c <= 2.2e-296) {
		tmp = i * (b * a);
	} else if (c <= 6e+73) {
		tmp = x * (y * z);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -24000.0:
		tmp = c * (t * j)
	elif c <= 2.2e-296:
		tmp = i * (b * a)
	elif c <= 6e+73:
		tmp = x * (y * z)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -24000.0)
		tmp = Float64(c * Float64(t * j));
	elseif (c <= 2.2e-296)
		tmp = Float64(i * Float64(b * a));
	elseif (c <= 6e+73)
		tmp = Float64(x * Float64(y * z));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -24000.0)
		tmp = c * (t * j);
	elseif (c <= 2.2e-296)
		tmp = i * (b * a);
	elseif (c <= 6e+73)
		tmp = x * (y * z);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -24000.0], N[(c * N[(t * j), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 2.2e-296], N[(i * N[(b * a), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 6e+73], N[(x * N[(y * z), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -24000:\\
\;\;\;\;c \cdot \left(t \cdot j\right)\\

\mathbf{elif}\;c \leq 2.2 \cdot 10^{-296}:\\
\;\;\;\;i \cdot \left(b \cdot a\right)\\

\mathbf{elif}\;c \leq 6 \cdot 10^{+73}:\\
\;\;\;\;x \cdot \left(y \cdot z\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if c < -24000

    1. Initial program 59.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -24000 < c < 2.20000000000000012e-296

    1. Initial program 83.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 2.20000000000000012e-296 < c < 6.00000000000000021e73

    1. Initial program 78.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 6.00000000000000021e73 < c

    1. Initial program 63.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 32: 51.7% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := c \cdot \left(t \cdot j - z \cdot b\right)\\ \mathbf{if}\;c \leq -8.5 \cdot 10^{+59}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;c \leq 5.8 \cdot 10^{+73}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* c (- (* t j) (* z b)))))
   (if (<= c -8.5e+59) t_1 (if (<= c 5.8e+73) (* a (- (* i b) (* x t))) t_1))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * ((t * j) - (z * b));
	double tmp;
	if (c <= -8.5e+59) {
		tmp = t_1;
	} else if (c <= 5.8e+73) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = c * ((t * j) - (z * b))
    if (c <= (-8.5d+59)) then
        tmp = t_1
    else if (c <= 5.8d+73) then
        tmp = a * ((i * b) - (x * t))
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * ((t * j) - (z * b));
	double tmp;
	if (c <= -8.5e+59) {
		tmp = t_1;
	} else if (c <= 5.8e+73) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = c * ((t * j) - (z * b))
	tmp = 0
	if c <= -8.5e+59:
		tmp = t_1
	elif c <= 5.8e+73:
		tmp = a * ((i * b) - (x * t))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(c * Float64(Float64(t * j) - Float64(z * b)))
	tmp = 0.0
	if (c <= -8.5e+59)
		tmp = t_1;
	elseif (c <= 5.8e+73)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = c * ((t * j) - (z * b));
	tmp = 0.0;
	if (c <= -8.5e+59)
		tmp = t_1;
	elseif (c <= 5.8e+73)
		tmp = a * ((i * b) - (x * t));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(c * N[(N[(t * j), $MachinePrecision] - N[(z * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[c, -8.5e+59], t$95$1, If[LessEqual[c, 5.8e+73], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := c \cdot \left(t \cdot j - z \cdot b\right)\\
\mathbf{if}\;c \leq -8.5 \cdot 10^{+59}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;c \leq 5.8 \cdot 10^{+73}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if c < -8.4999999999999999e59 or 5.8000000000000005e73 < c

    1. Initial program 60.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -8.4999999999999999e59 < c < 5.8000000000000005e73

    1. Initial program 79.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 33: 43.9% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -2.5 \cdot 10^{-16}:\\ \;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\ \mathbf{elif}\;z \leq 1.1 \cdot 10^{+169}:\\ \;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(x \cdot z\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= z -2.5e-16)
   (* b (- (* a i) (* z c)))
   (if (<= z 1.1e+169) (* a (- (* i b) (* x t))) (* y (* x z)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (z <= -2.5e-16) {
		tmp = b * ((a * i) - (z * c));
	} else if (z <= 1.1e+169) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = y * (x * z);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (z <= (-2.5d-16)) then
        tmp = b * ((a * i) - (z * c))
    else if (z <= 1.1d+169) then
        tmp = a * ((i * b) - (x * t))
    else
        tmp = y * (x * z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (z <= -2.5e-16) {
		tmp = b * ((a * i) - (z * c));
	} else if (z <= 1.1e+169) {
		tmp = a * ((i * b) - (x * t));
	} else {
		tmp = y * (x * z);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if z <= -2.5e-16:
		tmp = b * ((a * i) - (z * c))
	elif z <= 1.1e+169:
		tmp = a * ((i * b) - (x * t))
	else:
		tmp = y * (x * z)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (z <= -2.5e-16)
		tmp = Float64(b * Float64(Float64(a * i) - Float64(z * c)));
	elseif (z <= 1.1e+169)
		tmp = Float64(a * Float64(Float64(i * b) - Float64(x * t)));
	else
		tmp = Float64(y * Float64(x * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (z <= -2.5e-16)
		tmp = b * ((a * i) - (z * c));
	elseif (z <= 1.1e+169)
		tmp = a * ((i * b) - (x * t));
	else
		tmp = y * (x * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[z, -2.5e-16], N[(b * N[(N[(a * i), $MachinePrecision] - N[(z * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 1.1e+169], N[(a * N[(N[(i * b), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(y * N[(x * z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.5 \cdot 10^{-16}:\\
\;\;\;\;b \cdot \left(a \cdot i - z \cdot c\right)\\

\mathbf{elif}\;z \leq 1.1 \cdot 10^{+169}:\\
\;\;\;\;a \cdot \left(i \cdot b - x \cdot t\right)\\

\mathbf{else}:\\
\;\;\;\;y \cdot \left(x \cdot z\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if z < -2.5000000000000002e-16

    1. Initial program 69.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if -2.5000000000000002e-16 < z < 1.1e169

    1. Initial program 76.5%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]

    if 1.1e169 < z

    1. Initial program 53.2%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in x around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 34: 29.4% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -15500:\\ \;\;\;\;c \cdot \left(t \cdot j\right)\\ \mathbf{elif}\;c \leq 5.5 \cdot 10^{+73}:\\ \;\;\;\;a \cdot \left(i \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;j \cdot \left(c \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (if (<= c -15500.0)
   (* c (* t j))
   (if (<= c 5.5e+73) (* a (* i b)) (* j (* c t)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -15500.0) {
		tmp = c * (t * j);
	} else if (c <= 5.5e+73) {
		tmp = a * (i * b);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: tmp
    if (c <= (-15500.0d0)) then
        tmp = c * (t * j)
    else if (c <= 5.5d+73) then
        tmp = a * (i * b)
    else
        tmp = j * (c * t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double tmp;
	if (c <= -15500.0) {
		tmp = c * (t * j);
	} else if (c <= 5.5e+73) {
		tmp = a * (i * b);
	} else {
		tmp = j * (c * t);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	tmp = 0
	if c <= -15500.0:
		tmp = c * (t * j)
	elif c <= 5.5e+73:
		tmp = a * (i * b)
	else:
		tmp = j * (c * t)
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0
	if (c <= -15500.0)
		tmp = Float64(c * Float64(t * j));
	elseif (c <= 5.5e+73)
		tmp = Float64(a * Float64(i * b));
	else
		tmp = Float64(j * Float64(c * t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	tmp = 0.0;
	if (c <= -15500.0)
		tmp = c * (t * j);
	elseif (c <= 5.5e+73)
		tmp = a * (i * b);
	else
		tmp = j * (c * t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := If[LessEqual[c, -15500.0], N[(c * N[(t * j), $MachinePrecision]), $MachinePrecision], If[LessEqual[c, 5.5e+73], N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision], N[(j * N[(c * t), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -15500:\\
\;\;\;\;c \cdot \left(t \cdot j\right)\\

\mathbf{elif}\;c \leq 5.5 \cdot 10^{+73}:\\
\;\;\;\;a \cdot \left(i \cdot b\right)\\

\mathbf{else}:\\
\;\;\;\;j \cdot \left(c \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if c < -15500

    1. Initial program 59.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -15500 < c < 5.5000000000000003e73

    1. Initial program 80.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if 5.5000000000000003e73 < c

    1. Initial program 63.8%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in j around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 35: 29.1% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := c \cdot \left(t \cdot j\right)\\ \mathbf{if}\;c \leq -13500:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;c \leq 9 \cdot 10^{+73}:\\ \;\;\;\;a \cdot \left(i \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* c (* t j))))
   (if (<= c -13500.0) t_1 (if (<= c 9e+73) (* a (* i b)) t_1))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * (t * j);
	double tmp;
	if (c <= -13500.0) {
		tmp = t_1;
	} else if (c <= 9e+73) {
		tmp = a * (i * b);
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = c * (t * j)
    if (c <= (-13500.0d0)) then
        tmp = t_1
    else if (c <= 9d+73) then
        tmp = a * (i * b)
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = c * (t * j);
	double tmp;
	if (c <= -13500.0) {
		tmp = t_1;
	} else if (c <= 9e+73) {
		tmp = a * (i * b);
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = c * (t * j)
	tmp = 0
	if c <= -13500.0:
		tmp = t_1
	elif c <= 9e+73:
		tmp = a * (i * b)
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(c * Float64(t * j))
	tmp = 0.0
	if (c <= -13500.0)
		tmp = t_1;
	elseif (c <= 9e+73)
		tmp = Float64(a * Float64(i * b));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = c * (t * j);
	tmp = 0.0;
	if (c <= -13500.0)
		tmp = t_1;
	elseif (c <= 9e+73)
		tmp = a * (i * b);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(c * N[(t * j), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[c, -13500.0], t$95$1, If[LessEqual[c, 9e+73], N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := c \cdot \left(t \cdot j\right)\\
\mathbf{if}\;c \leq -13500:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;c \leq 9 \cdot 10^{+73}:\\
\;\;\;\;a \cdot \left(i \cdot b\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if c < -13500 or 8.99999999999999969e73 < c

    1. Initial program 61.3%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in c around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in t around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]

    if -13500 < c < 8.99999999999999969e73

    1. Initial program 80.7%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 0

      \[\leadsto expr\]
    4. Simplified0

      \[\leadsto expr\]
    5. Taylor expanded in i around inf 0

      \[\leadsto expr\]
    6. Simplified0

      \[\leadsto expr\]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 36: 22.2% accurate, 5.8× speedup?

\[\begin{array}{l} \\ a \cdot \left(i \cdot b\right) \end{array} \]
(FPCore (x y z t a b c i j) :precision binary64 (* a (* i b)))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return a * (i * b);
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    code = a * (i * b)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return a * (i * b);
}
def code(x, y, z, t, a, b, c, i, j):
	return a * (i * b)
function code(x, y, z, t, a, b, c, i, j)
	return Float64(a * Float64(i * b))
end
function tmp = code(x, y, z, t, a, b, c, i, j)
	tmp = a * (i * b);
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := N[(a * N[(i * b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
a \cdot \left(i \cdot b\right)
\end{array}
Derivation
  1. Initial program 72.3%

    \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + j \cdot \left(c \cdot t - i \cdot y\right) \]
  2. Add Preprocessing
  3. Taylor expanded in a around inf 0

    \[\leadsto expr\]
  4. Simplified0

    \[\leadsto expr\]
  5. Taylor expanded in i around inf 0

    \[\leadsto expr\]
  6. Simplified0

    \[\leadsto expr\]
  7. Add Preprocessing

Developer target: 67.8% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + \frac{j \cdot \left({\left(c \cdot t\right)}^{2} - {\left(i \cdot y\right)}^{2}\right)}{c \cdot t + i \cdot y}\\ t_2 := x \cdot \left(z \cdot y - a \cdot t\right) - \left(b \cdot \left(z \cdot c - a \cdot i\right) - \left(c \cdot t - y \cdot i\right) \cdot j\right)\\ \mathbf{if}\;t < -8.120978919195912 \cdot 10^{-33}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t < -4.712553818218485 \cdot 10^{-169}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t < -7.633533346031584 \cdot 10^{-308}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t < 1.0535888557455487 \cdot 10^{-139}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1
         (+
          (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* i a))))
          (/
           (* j (- (pow (* c t) 2.0) (pow (* i y) 2.0)))
           (+ (* c t) (* i y)))))
        (t_2
         (-
          (* x (- (* z y) (* a t)))
          (- (* b (- (* z c) (* a i))) (* (- (* c t) (* y i)) j)))))
   (if (< t -8.120978919195912e-33)
     t_2
     (if (< t -4.712553818218485e-169)
       t_1
       (if (< t -7.633533346031584e-308)
         t_2
         (if (< t 1.0535888557455487e-139) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + ((j * (pow((c * t), 2.0) - pow((i * y), 2.0))) / ((c * t) + (i * y)));
	double t_2 = (x * ((z * y) - (a * t))) - ((b * ((z * c) - (a * i))) - (((c * t) - (y * i)) * j));
	double tmp;
	if (t < -8.120978919195912e-33) {
		tmp = t_2;
	} else if (t < -4.712553818218485e-169) {
		tmp = t_1;
	} else if (t < -7.633533346031584e-308) {
		tmp = t_2;
	} else if (t < 1.0535888557455487e-139) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + ((j * (((c * t) ** 2.0d0) - ((i * y) ** 2.0d0))) / ((c * t) + (i * y)))
    t_2 = (x * ((z * y) - (a * t))) - ((b * ((z * c) - (a * i))) - (((c * t) - (y * i)) * j))
    if (t < (-8.120978919195912d-33)) then
        tmp = t_2
    else if (t < (-4.712553818218485d-169)) then
        tmp = t_1
    else if (t < (-7.633533346031584d-308)) then
        tmp = t_2
    else if (t < 1.0535888557455487d-139) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + ((j * (Math.pow((c * t), 2.0) - Math.pow((i * y), 2.0))) / ((c * t) + (i * y)));
	double t_2 = (x * ((z * y) - (a * t))) - ((b * ((z * c) - (a * i))) - (((c * t) - (y * i)) * j));
	double tmp;
	if (t < -8.120978919195912e-33) {
		tmp = t_2;
	} else if (t < -4.712553818218485e-169) {
		tmp = t_1;
	} else if (t < -7.633533346031584e-308) {
		tmp = t_2;
	} else if (t < 1.0535888557455487e-139) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i, j):
	t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + ((j * (math.pow((c * t), 2.0) - math.pow((i * y), 2.0))) / ((c * t) + (i * y)))
	t_2 = (x * ((z * y) - (a * t))) - ((b * ((z * c) - (a * i))) - (((c * t) - (y * i)) * j))
	tmp = 0
	if t < -8.120978919195912e-33:
		tmp = t_2
	elif t < -4.712553818218485e-169:
		tmp = t_1
	elif t < -7.633533346031584e-308:
		tmp = t_2
	elif t < 1.0535888557455487e-139:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(Float64(Float64(x * Float64(Float64(y * z) - Float64(t * a))) - Float64(b * Float64(Float64(c * z) - Float64(i * a)))) + Float64(Float64(j * Float64((Float64(c * t) ^ 2.0) - (Float64(i * y) ^ 2.0))) / Float64(Float64(c * t) + Float64(i * y))))
	t_2 = Float64(Float64(x * Float64(Float64(z * y) - Float64(a * t))) - Float64(Float64(b * Float64(Float64(z * c) - Float64(a * i))) - Float64(Float64(Float64(c * t) - Float64(y * i)) * j)))
	tmp = 0.0
	if (t < -8.120978919195912e-33)
		tmp = t_2;
	elseif (t < -4.712553818218485e-169)
		tmp = t_1;
	elseif (t < -7.633533346031584e-308)
		tmp = t_2;
	elseif (t < 1.0535888557455487e-139)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (i * a)))) + ((j * (((c * t) ^ 2.0) - ((i * y) ^ 2.0))) / ((c * t) + (i * y)));
	t_2 = (x * ((z * y) - (a * t))) - ((b * ((z * c) - (a * i))) - (((c * t) - (y * i)) * j));
	tmp = 0.0;
	if (t < -8.120978919195912e-33)
		tmp = t_2;
	elseif (t < -4.712553818218485e-169)
		tmp = t_1;
	elseif (t < -7.633533346031584e-308)
		tmp = t_2;
	elseif (t < 1.0535888557455487e-139)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(N[(c * z), $MachinePrecision] - N[(i * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(j * N[(N[Power[N[(c * t), $MachinePrecision], 2.0], $MachinePrecision] - N[Power[N[(i * y), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(c * t), $MachinePrecision] + N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x * N[(N[(z * y), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(N[(b * N[(N[(z * c), $MachinePrecision] - N[(a * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(N[(N[(c * t), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision] * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t, -8.120978919195912e-33], t$95$2, If[Less[t, -4.712553818218485e-169], t$95$1, If[Less[t, -7.633533346031584e-308], t$95$2, If[Less[t, 1.0535888557455487e-139], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - i \cdot a\right)\right) + \frac{j \cdot \left({\left(c \cdot t\right)}^{2} - {\left(i \cdot y\right)}^{2}\right)}{c \cdot t + i \cdot y}\\
t_2 := x \cdot \left(z \cdot y - a \cdot t\right) - \left(b \cdot \left(z \cdot c - a \cdot i\right) - \left(c \cdot t - y \cdot i\right) \cdot j\right)\\
\mathbf{if}\;t < -8.120978919195912 \cdot 10^{-33}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;t < -4.712553818218485 \cdot 10^{-169}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t < -7.633533346031584 \cdot 10^{-308}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;t < 1.0535888557455487 \cdot 10^{-139}:\\
\;\;\;\;t\_1\\

\mathbf{else}:\\
\;\;\;\;t\_2\\


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024110 
(FPCore (x y z t a b c i j)
  :name "Linear.Matrix:det33 from linear-1.19.1.3"
  :precision binary64

  :alt
  (if (< t -8.120978919195912e-33) (- (* x (- (* z y) (* a t))) (- (* b (- (* z c) (* a i))) (* (- (* c t) (* y i)) j))) (if (< t -4.712553818218485e-169) (+ (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* i a)))) (/ (* j (- (pow (* c t) 2.0) (pow (* i y) 2.0))) (+ (* c t) (* i y)))) (if (< t -7.633533346031584e-308) (- (* x (- (* z y) (* a t))) (- (* b (- (* z c) (* a i))) (* (- (* c t) (* y i)) j))) (if (< t 1.0535888557455487e-139) (+ (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* i a)))) (/ (* j (- (pow (* c t) 2.0) (pow (* i y) 2.0))) (+ (* c t) (* i y)))) (- (* x (- (* z y) (* a t))) (- (* b (- (* z c) (* a i))) (* (- (* c t) (* y i)) j)))))))

  (+ (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* i a)))) (* j (- (* c t) (* i y)))))