Statistics.Distribution.Beta:$centropy from math-functions-0.1.5.2

Percentage Accurate: 95.2% → 97.9%
Time: 15.6s
Alternatives: 24
Speedup: 0.5×

Specification

?
\[\begin{array}{l} \\ \left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (+ (- (- x (* (- y 1.0) z)) (* (- t 1.0) a)) (* (- (+ y t) 2.0) b)))
double code(double x, double y, double z, double t, double a, double b) {
	return ((x - ((y - 1.0) * z)) - ((t - 1.0) * a)) + (((y + t) - 2.0) * b);
}
real(8) function code(x, y, z, t, a, b)
    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
    code = ((x - ((y - 1.0d0) * z)) - ((t - 1.0d0) * a)) + (((y + t) - 2.0d0) * b)
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return ((x - ((y - 1.0) * z)) - ((t - 1.0) * a)) + (((y + t) - 2.0) * b);
}
def code(x, y, z, t, a, b):
	return ((x - ((y - 1.0) * z)) - ((t - 1.0) * a)) + (((y + t) - 2.0) * b)
function code(x, y, z, t, a, b)
	return Float64(Float64(Float64(x - Float64(Float64(y - 1.0) * z)) - Float64(Float64(t - 1.0) * a)) + Float64(Float64(Float64(y + t) - 2.0) * b))
end
function tmp = code(x, y, z, t, a, b)
	tmp = ((x - ((y - 1.0) * z)) - ((t - 1.0) * a)) + (((y + t) - 2.0) * b);
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(x - N[(N[(y - 1.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision] - N[(N[(t - 1.0), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] + N[(N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision] * b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b
\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 24 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: 95.2% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (+ (- (- x (* (- y 1.0) z)) (* (- t 1.0) a)) (* (- (+ y t) 2.0) b)))
double code(double x, double y, double z, double t, double a, double b) {
	return ((x - ((y - 1.0) * z)) - ((t - 1.0) * a)) + (((y + t) - 2.0) * b);
}
real(8) function code(x, y, z, t, a, b)
    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
    code = ((x - ((y - 1.0d0) * z)) - ((t - 1.0d0) * a)) + (((y + t) - 2.0d0) * b)
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return ((x - ((y - 1.0) * z)) - ((t - 1.0) * a)) + (((y + t) - 2.0) * b);
}
def code(x, y, z, t, a, b):
	return ((x - ((y - 1.0) * z)) - ((t - 1.0) * a)) + (((y + t) - 2.0) * b)
function code(x, y, z, t, a, b)
	return Float64(Float64(Float64(x - Float64(Float64(y - 1.0) * z)) - Float64(Float64(t - 1.0) * a)) + Float64(Float64(Float64(y + t) - 2.0) * b))
end
function tmp = code(x, y, z, t, a, b)
	tmp = ((x - ((y - 1.0) * z)) - ((t - 1.0) * a)) + (((y + t) - 2.0) * b);
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(x - N[(N[(y - 1.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision] - N[(N[(t - 1.0), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] + N[(N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision] * b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b
\end{array}

Alternative 1: 97.9% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(\left(x - z \cdot \left(y + -1\right)\right) + a \cdot \left(1 - t\right)\right) + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;t_1 \leq \infty:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1
         (+ (+ (- x (* z (+ y -1.0))) (* a (- 1.0 t))) (* b (- (+ y t) 2.0)))))
   (if (<= t_1 INFINITY) t_1 (* y (- b z)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = ((x - (z * (y + -1.0))) + (a * (1.0 - t))) + (b * ((y + t) - 2.0));
	double tmp;
	if (t_1 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = y * (b - z);
	}
	return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = ((x - (z * (y + -1.0))) + (a * (1.0 - t))) + (b * ((y + t) - 2.0));
	double tmp;
	if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = y * (b - z);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = ((x - (z * (y + -1.0))) + (a * (1.0 - t))) + (b * ((y + t) - 2.0))
	tmp = 0
	if t_1 <= math.inf:
		tmp = t_1
	else:
		tmp = y * (b - z)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(Float64(x - Float64(z * Float64(y + -1.0))) + Float64(a * Float64(1.0 - t))) + Float64(b * Float64(Float64(y + t) - 2.0)))
	tmp = 0.0
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(y * Float64(b - z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = ((x - (z * (y + -1.0))) + (a * (1.0 - t))) + (b * ((y + t) - 2.0));
	tmp = 0.0;
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = y * (b - z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(N[(x - N[(z * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], t$95$1, N[(y * N[(b - z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(\left(x - z \cdot \left(y + -1\right)\right) + a \cdot \left(1 - t\right)\right) + b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;t_1 \leq \infty:\\
\;\;\;\;t_1\\

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


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

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]

    if +inf.0 < (+.f64 (-.f64 (-.f64 x (*.f64 (-.f64 y 1) z)) (*.f64 (-.f64 t 1) a)) (*.f64 (-.f64 (+.f64 y t) 2) b))

    1. Initial program 0.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 62.1%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification96.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\left(\left(x - z \cdot \left(y + -1\right)\right) + a \cdot \left(1 - t\right)\right) + b \cdot \left(\left(y + t\right) - 2\right) \leq \infty:\\ \;\;\;\;\left(\left(x - z \cdot \left(y + -1\right)\right) + a \cdot \left(1 - t\right)\right) + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \end{array} \]

Alternative 2: 97.5% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, a \cdot \left(t + -1\right)\right)\right) \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (fma (+ y (+ t -2.0)) b (- x (fma (+ y -1.0) z (* a (+ t -1.0))))))
double code(double x, double y, double z, double t, double a, double b) {
	return fma((y + (t + -2.0)), b, (x - fma((y + -1.0), z, (a * (t + -1.0)))));
}
function code(x, y, z, t, a, b)
	return fma(Float64(y + Float64(t + -2.0)), b, Float64(x - fma(Float64(y + -1.0), z, Float64(a * Float64(t + -1.0)))))
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(y + N[(t + -2.0), $MachinePrecision]), $MachinePrecision] * b + N[(x - N[(N[(y + -1.0), $MachinePrecision] * z + N[(a * N[(t + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, a \cdot \left(t + -1\right)\right)\right)
\end{array}
Derivation
  1. Initial program 91.8%

    \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
  2. Step-by-step derivation
    1. +-commutative91.8%

      \[\leadsto \color{blue}{\left(\left(y + t\right) - 2\right) \cdot b + \left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right)} \]
    2. fma-def95.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\left(y + t\right) - 2, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right)} \]
    3. associate--l+95.3%

      \[\leadsto \mathsf{fma}\left(\color{blue}{y + \left(t - 2\right)}, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    4. sub-neg95.3%

      \[\leadsto \mathsf{fma}\left(y + \color{blue}{\left(t + \left(-2\right)\right)}, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    5. metadata-eval95.3%

      \[\leadsto \mathsf{fma}\left(y + \left(t + \color{blue}{-2}\right), b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    6. sub-neg95.3%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, \color{blue}{\left(x - \left(y - 1\right) \cdot z\right) + \left(-\left(t - 1\right) \cdot a\right)}\right) \]
    7. associate-+l-95.3%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, \color{blue}{x - \left(\left(y - 1\right) \cdot z - \left(-\left(t - 1\right) \cdot a\right)\right)}\right) \]
    8. fma-neg96.1%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \color{blue}{\mathsf{fma}\left(y - 1, z, -\left(-\left(t - 1\right) \cdot a\right)\right)}\right) \]
    9. sub-neg96.1%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(\color{blue}{y + \left(-1\right)}, z, -\left(-\left(t - 1\right) \cdot a\right)\right)\right) \]
    10. metadata-eval96.1%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + \color{blue}{-1}, z, -\left(-\left(t - 1\right) \cdot a\right)\right)\right) \]
    11. remove-double-neg96.1%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \color{blue}{\left(t - 1\right) \cdot a}\right)\right) \]
    12. sub-neg96.1%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot a\right)\right) \]
    13. metadata-eval96.1%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \left(t + \color{blue}{-1}\right) \cdot a\right)\right) \]
  3. Simplified96.1%

    \[\leadsto \color{blue}{\mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \left(t + -1\right) \cdot a\right)\right)} \]
  4. Final simplification96.1%

    \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, a \cdot \left(t + -1\right)\right)\right) \]

Alternative 3: 50.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\ t_3 := x - y \cdot z\\ \mathbf{if}\;b \leq -2.4 \cdot 10^{+40}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;b \leq -3 \cdot 10^{-180}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;b \leq -2.9 \cdot 10^{-260}:\\ \;\;\;\;t_3\\ \mathbf{elif}\;b \leq 1.28 \cdot 10^{-275}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;b \leq 3.7 \cdot 10^{+22}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 3.7 \cdot 10^{+71} \lor \neg \left(b \leq 3.2 \cdot 10^{+103}\right):\\ \;\;\;\;t_2\\ \mathbf{else}:\\ \;\;\;\;t_3\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t))) (t_2 (* b (- (+ y t) 2.0))) (t_3 (- x (* y z))))
   (if (<= b -2.4e+40)
     t_2
     (if (<= b -3e-180)
       t_1
       (if (<= b -2.9e-260)
         t_3
         (if (<= b 1.28e-275)
           t_1
           (if (<= b 3.7e+22)
             (* z (- 1.0 y))
             (if (or (<= b 3.7e+71) (not (<= b 3.2e+103))) t_2 t_3))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a * (1.0 - t);
	double t_2 = b * ((y + t) - 2.0);
	double t_3 = x - (y * z);
	double tmp;
	if (b <= -2.4e+40) {
		tmp = t_2;
	} else if (b <= -3e-180) {
		tmp = t_1;
	} else if (b <= -2.9e-260) {
		tmp = t_3;
	} else if (b <= 1.28e-275) {
		tmp = t_1;
	} else if (b <= 3.7e+22) {
		tmp = z * (1.0 - y);
	} else if ((b <= 3.7e+71) || !(b <= 3.2e+103)) {
		tmp = t_2;
	} else {
		tmp = t_3;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: tmp
    t_1 = a * (1.0d0 - t)
    t_2 = b * ((y + t) - 2.0d0)
    t_3 = x - (y * z)
    if (b <= (-2.4d+40)) then
        tmp = t_2
    else if (b <= (-3d-180)) then
        tmp = t_1
    else if (b <= (-2.9d-260)) then
        tmp = t_3
    else if (b <= 1.28d-275) then
        tmp = t_1
    else if (b <= 3.7d+22) then
        tmp = z * (1.0d0 - y)
    else if ((b <= 3.7d+71) .or. (.not. (b <= 3.2d+103))) 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 t_1 = a * (1.0 - t);
	double t_2 = b * ((y + t) - 2.0);
	double t_3 = x - (y * z);
	double tmp;
	if (b <= -2.4e+40) {
		tmp = t_2;
	} else if (b <= -3e-180) {
		tmp = t_1;
	} else if (b <= -2.9e-260) {
		tmp = t_3;
	} else if (b <= 1.28e-275) {
		tmp = t_1;
	} else if (b <= 3.7e+22) {
		tmp = z * (1.0 - y);
	} else if ((b <= 3.7e+71) || !(b <= 3.2e+103)) {
		tmp = t_2;
	} else {
		tmp = t_3;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	t_2 = b * ((y + t) - 2.0)
	t_3 = x - (y * z)
	tmp = 0
	if b <= -2.4e+40:
		tmp = t_2
	elif b <= -3e-180:
		tmp = t_1
	elif b <= -2.9e-260:
		tmp = t_3
	elif b <= 1.28e-275:
		tmp = t_1
	elif b <= 3.7e+22:
		tmp = z * (1.0 - y)
	elif (b <= 3.7e+71) or not (b <= 3.2e+103):
		tmp = t_2
	else:
		tmp = t_3
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a * Float64(1.0 - t))
	t_2 = Float64(b * Float64(Float64(y + t) - 2.0))
	t_3 = Float64(x - Float64(y * z))
	tmp = 0.0
	if (b <= -2.4e+40)
		tmp = t_2;
	elseif (b <= -3e-180)
		tmp = t_1;
	elseif (b <= -2.9e-260)
		tmp = t_3;
	elseif (b <= 1.28e-275)
		tmp = t_1;
	elseif (b <= 3.7e+22)
		tmp = Float64(z * Float64(1.0 - y));
	elseif ((b <= 3.7e+71) || !(b <= 3.2e+103))
		tmp = t_2;
	else
		tmp = t_3;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = a * (1.0 - t);
	t_2 = b * ((y + t) - 2.0);
	t_3 = x - (y * z);
	tmp = 0.0;
	if (b <= -2.4e+40)
		tmp = t_2;
	elseif (b <= -3e-180)
		tmp = t_1;
	elseif (b <= -2.9e-260)
		tmp = t_3;
	elseif (b <= 1.28e-275)
		tmp = t_1;
	elseif (b <= 3.7e+22)
		tmp = z * (1.0 - y);
	elseif ((b <= 3.7e+71) || ~((b <= 3.2e+103)))
		tmp = t_2;
	else
		tmp = t_3;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x - N[(y * z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -2.4e+40], t$95$2, If[LessEqual[b, -3e-180], t$95$1, If[LessEqual[b, -2.9e-260], t$95$3, If[LessEqual[b, 1.28e-275], t$95$1, If[LessEqual[b, 3.7e+22], N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[b, 3.7e+71], N[Not[LessEqual[b, 3.2e+103]], $MachinePrecision]], t$95$2, t$95$3]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\
t_3 := x - y \cdot z\\
\mathbf{if}\;b \leq -2.4 \cdot 10^{+40}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;b \leq -3 \cdot 10^{-180}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;b \leq -2.9 \cdot 10^{-260}:\\
\;\;\;\;t_3\\

\mathbf{elif}\;b \leq 1.28 \cdot 10^{-275}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;b \leq 3.7 \cdot 10^{+22}:\\
\;\;\;\;z \cdot \left(1 - y\right)\\

\mathbf{elif}\;b \leq 3.7 \cdot 10^{+71} \lor \neg \left(b \leq 3.2 \cdot 10^{+103}\right):\\
\;\;\;\;t_2\\

\mathbf{else}:\\
\;\;\;\;t_3\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if b < -2.4e40 or 3.6999999999999998e22 < b < 3.7e71 or 3.19999999999999993e103 < b

    1. Initial program 85.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 71.1%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]

    if -2.4e40 < b < -3.0000000000000001e-180 or -2.8999999999999999e-260 < b < 1.27999999999999996e-275

    1. Initial program 97.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around inf 52.3%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]

    if -3.0000000000000001e-180 < b < -2.8999999999999999e-260 or 3.7e71 < b < 3.19999999999999993e103

    1. Initial program 89.5%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 100.0%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in y around inf 69.4%

      \[\leadsto x - \color{blue}{y \cdot z} \]

    if 1.27999999999999996e-275 < b < 3.6999999999999998e22

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 56.3%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification63.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.4 \cdot 10^{+40}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -3 \cdot 10^{-180}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -2.9 \cdot 10^{-260}:\\ \;\;\;\;x - y \cdot z\\ \mathbf{elif}\;b \leq 1.28 \cdot 10^{-275}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 3.7 \cdot 10^{+22}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 3.7 \cdot 10^{+71} \lor \neg \left(b \leq 3.2 \cdot 10^{+103}\right):\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{else}:\\ \;\;\;\;x - y \cdot z\\ \end{array} \]

Alternative 4: 58.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + a \cdot \left(1 - t\right)\\ t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;b \leq -2.15 \cdot 10^{+63}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;b \leq 4.6 \cdot 10^{-265}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;b \leq 1.45 \cdot 10^{-61}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 1.7 \cdot 10^{+20}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;b \leq 4.2 \cdot 10^{+22}:\\ \;\;\;\;z\\ \mathbf{elif}\;b \leq 3.7 \cdot 10^{+71} \lor \neg \left(b \leq 2.25 \cdot 10^{+100}\right):\\ \;\;\;\;t_2\\ \mathbf{else}:\\ \;\;\;\;x - y \cdot z\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* a (- 1.0 t)))) (t_2 (* b (- (+ y t) 2.0))))
   (if (<= b -2.15e+63)
     t_2
     (if (<= b 4.6e-265)
       t_1
       (if (<= b 1.45e-61)
         (* z (- 1.0 y))
         (if (<= b 1.7e+20)
           t_1
           (if (<= b 4.2e+22)
             z
             (if (or (<= b 3.7e+71) (not (<= b 2.25e+100)))
               t_2
               (- x (* y z))))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * (1.0 - t));
	double t_2 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -2.15e+63) {
		tmp = t_2;
	} else if (b <= 4.6e-265) {
		tmp = t_1;
	} else if (b <= 1.45e-61) {
		tmp = z * (1.0 - y);
	} else if (b <= 1.7e+20) {
		tmp = t_1;
	} else if (b <= 4.2e+22) {
		tmp = z;
	} else if ((b <= 3.7e+71) || !(b <= 2.25e+100)) {
		tmp = t_2;
	} else {
		tmp = x - (y * z);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = x + (a * (1.0d0 - t))
    t_2 = b * ((y + t) - 2.0d0)
    if (b <= (-2.15d+63)) then
        tmp = t_2
    else if (b <= 4.6d-265) then
        tmp = t_1
    else if (b <= 1.45d-61) then
        tmp = z * (1.0d0 - y)
    else if (b <= 1.7d+20) then
        tmp = t_1
    else if (b <= 4.2d+22) then
        tmp = z
    else if ((b <= 3.7d+71) .or. (.not. (b <= 2.25d+100))) then
        tmp = t_2
    else
        tmp = x - (y * z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * (1.0 - t));
	double t_2 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -2.15e+63) {
		tmp = t_2;
	} else if (b <= 4.6e-265) {
		tmp = t_1;
	} else if (b <= 1.45e-61) {
		tmp = z * (1.0 - y);
	} else if (b <= 1.7e+20) {
		tmp = t_1;
	} else if (b <= 4.2e+22) {
		tmp = z;
	} else if ((b <= 3.7e+71) || !(b <= 2.25e+100)) {
		tmp = t_2;
	} else {
		tmp = x - (y * z);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (a * (1.0 - t))
	t_2 = b * ((y + t) - 2.0)
	tmp = 0
	if b <= -2.15e+63:
		tmp = t_2
	elif b <= 4.6e-265:
		tmp = t_1
	elif b <= 1.45e-61:
		tmp = z * (1.0 - y)
	elif b <= 1.7e+20:
		tmp = t_1
	elif b <= 4.2e+22:
		tmp = z
	elif (b <= 3.7e+71) or not (b <= 2.25e+100):
		tmp = t_2
	else:
		tmp = x - (y * z)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(a * Float64(1.0 - t)))
	t_2 = Float64(b * Float64(Float64(y + t) - 2.0))
	tmp = 0.0
	if (b <= -2.15e+63)
		tmp = t_2;
	elseif (b <= 4.6e-265)
		tmp = t_1;
	elseif (b <= 1.45e-61)
		tmp = Float64(z * Float64(1.0 - y));
	elseif (b <= 1.7e+20)
		tmp = t_1;
	elseif (b <= 4.2e+22)
		tmp = z;
	elseif ((b <= 3.7e+71) || !(b <= 2.25e+100))
		tmp = t_2;
	else
		tmp = Float64(x - Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (a * (1.0 - t));
	t_2 = b * ((y + t) - 2.0);
	tmp = 0.0;
	if (b <= -2.15e+63)
		tmp = t_2;
	elseif (b <= 4.6e-265)
		tmp = t_1;
	elseif (b <= 1.45e-61)
		tmp = z * (1.0 - y);
	elseif (b <= 1.7e+20)
		tmp = t_1;
	elseif (b <= 4.2e+22)
		tmp = z;
	elseif ((b <= 3.7e+71) || ~((b <= 2.25e+100)))
		tmp = t_2;
	else
		tmp = x - (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -2.15e+63], t$95$2, If[LessEqual[b, 4.6e-265], t$95$1, If[LessEqual[b, 1.45e-61], N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 1.7e+20], t$95$1, If[LessEqual[b, 4.2e+22], z, If[Or[LessEqual[b, 3.7e+71], N[Not[LessEqual[b, 2.25e+100]], $MachinePrecision]], t$95$2, N[(x - N[(y * z), $MachinePrecision]), $MachinePrecision]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + a \cdot \left(1 - t\right)\\
t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;b \leq -2.15 \cdot 10^{+63}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;b \leq 4.6 \cdot 10^{-265}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;b \leq 1.45 \cdot 10^{-61}:\\
\;\;\;\;z \cdot \left(1 - y\right)\\

\mathbf{elif}\;b \leq 1.7 \cdot 10^{+20}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;b \leq 4.2 \cdot 10^{+22}:\\
\;\;\;\;z\\

\mathbf{elif}\;b \leq 3.7 \cdot 10^{+71} \lor \neg \left(b \leq 2.25 \cdot 10^{+100}\right):\\
\;\;\;\;t_2\\

\mathbf{else}:\\
\;\;\;\;x - y \cdot z\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if b < -2.15e63 or 4.1999999999999996e22 < b < 3.7e71 or 2.25000000000000018e100 < b

    1. Initial program 84.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 72.6%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]

    if -2.15e63 < b < 4.5999999999999998e-265 or 1.45e-61 < b < 1.7e20

    1. Initial program 97.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 90.4%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in a around inf 65.0%

      \[\leadsto x - \color{blue}{a \cdot \left(t - 1\right)} \]

    if 4.5999999999999998e-265 < b < 1.45e-61

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 63.6%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]

    if 1.7e20 < b < 4.1999999999999996e22

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 100.0%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    3. Taylor expanded in y around 0 100.0%

      \[\leadsto \color{blue}{z} \]

    if 3.7e71 < b < 2.25000000000000018e100

    1. Initial program 71.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 100.0%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in y around inf 72.9%

      \[\leadsto x - \color{blue}{y \cdot z} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification68.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.15 \cdot 10^{+63}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq 4.6 \cdot 10^{-265}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 1.45 \cdot 10^{-61}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 1.7 \cdot 10^{+20}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 4.2 \cdot 10^{+22}:\\ \;\;\;\;z\\ \mathbf{elif}\;b \leq 3.7 \cdot 10^{+71} \lor \neg \left(b \leq 2.25 \cdot 10^{+100}\right):\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{else}:\\ \;\;\;\;x - y \cdot z\\ \end{array} \]

Alternative 5: 55.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(b - z\right)\\ t_2 := b \cdot \left(t - 2\right)\\ t_3 := x + t_2\\ \mathbf{if}\;y \leq -4.4 \cdot 10^{+109}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq -5.4 \cdot 10^{+63}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;y \leq -2.65 \cdot 10^{+47}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq -2.12 \cdot 10^{-187}:\\ \;\;\;\;t_3\\ \mathbf{elif}\;y \leq 1.4 \cdot 10^{-30}:\\ \;\;\;\;z + t_2\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+44}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;y \leq 9 \cdot 10^{+78}:\\ \;\;\;\;t_3\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* y (- b z))) (t_2 (* b (- t 2.0))) (t_3 (+ x t_2)))
   (if (<= y -4.4e+109)
     t_1
     (if (<= y -5.4e+63)
       (* t (- b a))
       (if (<= y -2.65e+47)
         t_1
         (if (<= y -2.12e-187)
           t_3
           (if (<= y 1.4e-30)
             (+ z t_2)
             (if (<= y 4e+44) (* a (- 1.0 t)) (if (<= y 9e+78) t_3 t_1)))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * (b - z);
	double t_2 = b * (t - 2.0);
	double t_3 = x + t_2;
	double tmp;
	if (y <= -4.4e+109) {
		tmp = t_1;
	} else if (y <= -5.4e+63) {
		tmp = t * (b - a);
	} else if (y <= -2.65e+47) {
		tmp = t_1;
	} else if (y <= -2.12e-187) {
		tmp = t_3;
	} else if (y <= 1.4e-30) {
		tmp = z + t_2;
	} else if (y <= 4e+44) {
		tmp = a * (1.0 - t);
	} else if (y <= 9e+78) {
		tmp = t_3;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: tmp
    t_1 = y * (b - z)
    t_2 = b * (t - 2.0d0)
    t_3 = x + t_2
    if (y <= (-4.4d+109)) then
        tmp = t_1
    else if (y <= (-5.4d+63)) then
        tmp = t * (b - a)
    else if (y <= (-2.65d+47)) then
        tmp = t_1
    else if (y <= (-2.12d-187)) then
        tmp = t_3
    else if (y <= 1.4d-30) then
        tmp = z + t_2
    else if (y <= 4d+44) then
        tmp = a * (1.0d0 - t)
    else if (y <= 9d+78) then
        tmp = t_3
    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 t_1 = y * (b - z);
	double t_2 = b * (t - 2.0);
	double t_3 = x + t_2;
	double tmp;
	if (y <= -4.4e+109) {
		tmp = t_1;
	} else if (y <= -5.4e+63) {
		tmp = t * (b - a);
	} else if (y <= -2.65e+47) {
		tmp = t_1;
	} else if (y <= -2.12e-187) {
		tmp = t_3;
	} else if (y <= 1.4e-30) {
		tmp = z + t_2;
	} else if (y <= 4e+44) {
		tmp = a * (1.0 - t);
	} else if (y <= 9e+78) {
		tmp = t_3;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = y * (b - z)
	t_2 = b * (t - 2.0)
	t_3 = x + t_2
	tmp = 0
	if y <= -4.4e+109:
		tmp = t_1
	elif y <= -5.4e+63:
		tmp = t * (b - a)
	elif y <= -2.65e+47:
		tmp = t_1
	elif y <= -2.12e-187:
		tmp = t_3
	elif y <= 1.4e-30:
		tmp = z + t_2
	elif y <= 4e+44:
		tmp = a * (1.0 - t)
	elif y <= 9e+78:
		tmp = t_3
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(y * Float64(b - z))
	t_2 = Float64(b * Float64(t - 2.0))
	t_3 = Float64(x + t_2)
	tmp = 0.0
	if (y <= -4.4e+109)
		tmp = t_1;
	elseif (y <= -5.4e+63)
		tmp = Float64(t * Float64(b - a));
	elseif (y <= -2.65e+47)
		tmp = t_1;
	elseif (y <= -2.12e-187)
		tmp = t_3;
	elseif (y <= 1.4e-30)
		tmp = Float64(z + t_2);
	elseif (y <= 4e+44)
		tmp = Float64(a * Float64(1.0 - t));
	elseif (y <= 9e+78)
		tmp = t_3;
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = y * (b - z);
	t_2 = b * (t - 2.0);
	t_3 = x + t_2;
	tmp = 0.0;
	if (y <= -4.4e+109)
		tmp = t_1;
	elseif (y <= -5.4e+63)
		tmp = t * (b - a);
	elseif (y <= -2.65e+47)
		tmp = t_1;
	elseif (y <= -2.12e-187)
		tmp = t_3;
	elseif (y <= 1.4e-30)
		tmp = z + t_2;
	elseif (y <= 4e+44)
		tmp = a * (1.0 - t);
	elseif (y <= 9e+78)
		tmp = t_3;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y * N[(b - z), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(b * N[(t - 2.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x + t$95$2), $MachinePrecision]}, If[LessEqual[y, -4.4e+109], t$95$1, If[LessEqual[y, -5.4e+63], N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, -2.65e+47], t$95$1, If[LessEqual[y, -2.12e-187], t$95$3, If[LessEqual[y, 1.4e-30], N[(z + t$95$2), $MachinePrecision], If[LessEqual[y, 4e+44], N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 9e+78], t$95$3, t$95$1]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \left(b - z\right)\\
t_2 := b \cdot \left(t - 2\right)\\
t_3 := x + t_2\\
\mathbf{if}\;y \leq -4.4 \cdot 10^{+109}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq -5.4 \cdot 10^{+63}:\\
\;\;\;\;t \cdot \left(b - a\right)\\

\mathbf{elif}\;y \leq -2.65 \cdot 10^{+47}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq -2.12 \cdot 10^{-187}:\\
\;\;\;\;t_3\\

\mathbf{elif}\;y \leq 1.4 \cdot 10^{-30}:\\
\;\;\;\;z + t_2\\

\mathbf{elif}\;y \leq 4 \cdot 10^{+44}:\\
\;\;\;\;a \cdot \left(1 - t\right)\\

\mathbf{elif}\;y \leq 9 \cdot 10^{+78}:\\
\;\;\;\;t_3\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -4.3999999999999998e109 or -5.40000000000000035e63 < y < -2.65e47 or 8.9999999999999999e78 < y

    1. Initial program 81.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 71.6%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]

    if -4.3999999999999998e109 < y < -5.40000000000000035e63

    1. Initial program 83.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in t around inf 67.4%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]

    if -2.65e47 < y < -2.12000000000000006e-187 or 4.0000000000000004e44 < y < 8.9999999999999999e78

    1. Initial program 98.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 81.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 76.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+76.0%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg76.0%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval76.0%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-176.0%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified76.0%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in z around 0 62.8%

      \[\leadsto \color{blue}{x + b \cdot \left(t - 2\right)} \]

    if -2.12000000000000006e-187 < y < 1.39999999999999994e-30

    1. Initial program 98.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 72.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 72.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+72.0%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg72.0%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval72.0%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-172.0%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified72.0%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in x around 0 58.7%

      \[\leadsto \color{blue}{z + b \cdot \left(t - 2\right)} \]

    if 1.39999999999999994e-30 < y < 4.0000000000000004e44

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around inf 58.8%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification64.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.4 \cdot 10^{+109}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;y \leq -5.4 \cdot 10^{+63}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;y \leq -2.65 \cdot 10^{+47}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;y \leq -2.12 \cdot 10^{-187}:\\ \;\;\;\;x + b \cdot \left(t - 2\right)\\ \mathbf{elif}\;y \leq 1.4 \cdot 10^{-30}:\\ \;\;\;\;z + b \cdot \left(t - 2\right)\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+44}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;y \leq 9 \cdot 10^{+78}:\\ \;\;\;\;x + b \cdot \left(t - 2\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \end{array} \]

Alternative 6: 86.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := z \cdot \left(1 - y\right)\\ t_2 := x - b \cdot \left(2 - \left(y + t\right)\right)\\ t_3 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;b \leq -2.15 \cdot 10^{+71}:\\ \;\;\;\;t_2 + t_1\\ \mathbf{elif}\;b \leq -5.5 \cdot 10^{+22} \lor \neg \left(b \leq 6.5 \cdot 10^{+22}\right):\\ \;\;\;\;t_2 + t_3\\ \mathbf{else}:\\ \;\;\;\;x + \left(t_3 + t_1\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* z (- 1.0 y)))
        (t_2 (- x (* b (- 2.0 (+ y t)))))
        (t_3 (* a (- 1.0 t))))
   (if (<= b -2.15e+71)
     (+ t_2 t_1)
     (if (or (<= b -5.5e+22) (not (<= b 6.5e+22)))
       (+ t_2 t_3)
       (+ x (+ t_3 t_1))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = z * (1.0 - y);
	double t_2 = x - (b * (2.0 - (y + t)));
	double t_3 = a * (1.0 - t);
	double tmp;
	if (b <= -2.15e+71) {
		tmp = t_2 + t_1;
	} else if ((b <= -5.5e+22) || !(b <= 6.5e+22)) {
		tmp = t_2 + t_3;
	} else {
		tmp = x + (t_3 + t_1);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: tmp
    t_1 = z * (1.0d0 - y)
    t_2 = x - (b * (2.0d0 - (y + t)))
    t_3 = a * (1.0d0 - t)
    if (b <= (-2.15d+71)) then
        tmp = t_2 + t_1
    else if ((b <= (-5.5d+22)) .or. (.not. (b <= 6.5d+22))) then
        tmp = t_2 + t_3
    else
        tmp = x + (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 t_1 = z * (1.0 - y);
	double t_2 = x - (b * (2.0 - (y + t)));
	double t_3 = a * (1.0 - t);
	double tmp;
	if (b <= -2.15e+71) {
		tmp = t_2 + t_1;
	} else if ((b <= -5.5e+22) || !(b <= 6.5e+22)) {
		tmp = t_2 + t_3;
	} else {
		tmp = x + (t_3 + t_1);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = z * (1.0 - y)
	t_2 = x - (b * (2.0 - (y + t)))
	t_3 = a * (1.0 - t)
	tmp = 0
	if b <= -2.15e+71:
		tmp = t_2 + t_1
	elif (b <= -5.5e+22) or not (b <= 6.5e+22):
		tmp = t_2 + t_3
	else:
		tmp = x + (t_3 + t_1)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(z * Float64(1.0 - y))
	t_2 = Float64(x - Float64(b * Float64(2.0 - Float64(y + t))))
	t_3 = Float64(a * Float64(1.0 - t))
	tmp = 0.0
	if (b <= -2.15e+71)
		tmp = Float64(t_2 + t_1);
	elseif ((b <= -5.5e+22) || !(b <= 6.5e+22))
		tmp = Float64(t_2 + t_3);
	else
		tmp = Float64(x + Float64(t_3 + t_1));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = z * (1.0 - y);
	t_2 = x - (b * (2.0 - (y + t)));
	t_3 = a * (1.0 - t);
	tmp = 0.0;
	if (b <= -2.15e+71)
		tmp = t_2 + t_1;
	elseif ((b <= -5.5e+22) || ~((b <= 6.5e+22)))
		tmp = t_2 + t_3;
	else
		tmp = x + (t_3 + t_1);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -2.15e+71], N[(t$95$2 + t$95$1), $MachinePrecision], If[Or[LessEqual[b, -5.5e+22], N[Not[LessEqual[b, 6.5e+22]], $MachinePrecision]], N[(t$95$2 + t$95$3), $MachinePrecision], N[(x + N[(t$95$3 + t$95$1), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := z \cdot \left(1 - y\right)\\
t_2 := x - b \cdot \left(2 - \left(y + t\right)\right)\\
t_3 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;b \leq -2.15 \cdot 10^{+71}:\\
\;\;\;\;t_2 + t_1\\

\mathbf{elif}\;b \leq -5.5 \cdot 10^{+22} \lor \neg \left(b \leq 6.5 \cdot 10^{+22}\right):\\
\;\;\;\;t_2 + t_3\\

\mathbf{else}:\\
\;\;\;\;x + \left(t_3 + t_1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -2.14999999999999992e71

    1. Initial program 80.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 84.6%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]

    if -2.14999999999999992e71 < b < -5.50000000000000021e22 or 6.49999999999999979e22 < b

    1. Initial program 87.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around 0 83.4%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - a \cdot \left(t - 1\right)} \]

    if -5.50000000000000021e22 < b < 6.49999999999999979e22

    1. Initial program 99.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 97.2%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification90.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.15 \cdot 10^{+71}:\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq -5.5 \cdot 10^{+22} \lor \neg \left(b \leq 6.5 \cdot 10^{+22}\right):\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + a \cdot \left(1 - t\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \end{array} \]

Alternative 7: 86.3% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;b \leq -3.8 \cdot 10^{+22} \lor \neg \left(b \leq 1.25 \cdot 10^{+23}\right):\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + t_1\\ \mathbf{else}:\\ \;\;\;\;x + \left(t_1 + z \cdot \left(1 - y\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t))))
   (if (or (<= b -3.8e+22) (not (<= b 1.25e+23)))
     (+ (- x (* b (- 2.0 (+ y t)))) t_1)
     (+ x (+ t_1 (* z (- 1.0 y)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a * (1.0 - t);
	double tmp;
	if ((b <= -3.8e+22) || !(b <= 1.25e+23)) {
		tmp = (x - (b * (2.0 - (y + t)))) + t_1;
	} else {
		tmp = x + (t_1 + (z * (1.0 - y)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: tmp
    t_1 = a * (1.0d0 - t)
    if ((b <= (-3.8d+22)) .or. (.not. (b <= 1.25d+23))) then
        tmp = (x - (b * (2.0d0 - (y + t)))) + t_1
    else
        tmp = x + (t_1 + (z * (1.0d0 - y)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a * (1.0 - t);
	double tmp;
	if ((b <= -3.8e+22) || !(b <= 1.25e+23)) {
		tmp = (x - (b * (2.0 - (y + t)))) + t_1;
	} else {
		tmp = x + (t_1 + (z * (1.0 - y)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	tmp = 0
	if (b <= -3.8e+22) or not (b <= 1.25e+23):
		tmp = (x - (b * (2.0 - (y + t)))) + t_1
	else:
		tmp = x + (t_1 + (z * (1.0 - y)))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a * Float64(1.0 - t))
	tmp = 0.0
	if ((b <= -3.8e+22) || !(b <= 1.25e+23))
		tmp = Float64(Float64(x - Float64(b * Float64(2.0 - Float64(y + t)))) + t_1);
	else
		tmp = Float64(x + Float64(t_1 + Float64(z * Float64(1.0 - y))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = a * (1.0 - t);
	tmp = 0.0;
	if ((b <= -3.8e+22) || ~((b <= 1.25e+23)))
		tmp = (x - (b * (2.0 - (y + t)))) + t_1;
	else
		tmp = x + (t_1 + (z * (1.0 - y)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[b, -3.8e+22], N[Not[LessEqual[b, 1.25e+23]], $MachinePrecision]], N[(N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], N[(x + N[(t$95$1 + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;b \leq -3.8 \cdot 10^{+22} \lor \neg \left(b \leq 1.25 \cdot 10^{+23}\right):\\
\;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + t_1\\

\mathbf{else}:\\
\;\;\;\;x + \left(t_1 + z \cdot \left(1 - y\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -3.8000000000000004e22 or 1.25e23 < b

    1. Initial program 85.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around 0 79.2%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - a \cdot \left(t - 1\right)} \]

    if -3.8000000000000004e22 < b < 1.25e23

    1. Initial program 99.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 97.2%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification87.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -3.8 \cdot 10^{+22} \lor \neg \left(b \leq 1.25 \cdot 10^{+23}\right):\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + a \cdot \left(1 - t\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \end{array} \]

Alternative 8: 34.7% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(-z\right)\\ \mathbf{if}\;y \leq -1.3 \cdot 10^{+110}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -5.6 \cdot 10^{+63}:\\ \;\;\;\;t \cdot \left(-a\right)\\ \mathbf{elif}\;y \leq -8 \cdot 10^{+37}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq -2.15 \cdot 10^{-89}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq -1.16 \cdot 10^{-119}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 2.1 \cdot 10^{-48}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq 5.6 \cdot 10^{+66}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* y (- z))))
   (if (<= y -1.3e+110)
     (* y b)
     (if (<= y -5.6e+63)
       (* t (- a))
       (if (<= y -8e+37)
         t_1
         (if (<= y -2.15e-89)
           (+ x z)
           (if (<= y -1.16e-119)
             (* t b)
             (if (<= y 2.1e-48) (+ x z) (if (<= y 5.6e+66) (* t b) t_1)))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * -z;
	double tmp;
	if (y <= -1.3e+110) {
		tmp = y * b;
	} else if (y <= -5.6e+63) {
		tmp = t * -a;
	} else if (y <= -8e+37) {
		tmp = t_1;
	} else if (y <= -2.15e-89) {
		tmp = x + z;
	} else if (y <= -1.16e-119) {
		tmp = t * b;
	} else if (y <= 2.1e-48) {
		tmp = x + z;
	} else if (y <= 5.6e+66) {
		tmp = t * b;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: tmp
    t_1 = y * -z
    if (y <= (-1.3d+110)) then
        tmp = y * b
    else if (y <= (-5.6d+63)) then
        tmp = t * -a
    else if (y <= (-8d+37)) then
        tmp = t_1
    else if (y <= (-2.15d-89)) then
        tmp = x + z
    else if (y <= (-1.16d-119)) then
        tmp = t * b
    else if (y <= 2.1d-48) then
        tmp = x + z
    else if (y <= 5.6d+66) then
        tmp = t * 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 t_1 = y * -z;
	double tmp;
	if (y <= -1.3e+110) {
		tmp = y * b;
	} else if (y <= -5.6e+63) {
		tmp = t * -a;
	} else if (y <= -8e+37) {
		tmp = t_1;
	} else if (y <= -2.15e-89) {
		tmp = x + z;
	} else if (y <= -1.16e-119) {
		tmp = t * b;
	} else if (y <= 2.1e-48) {
		tmp = x + z;
	} else if (y <= 5.6e+66) {
		tmp = t * b;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = y * -z
	tmp = 0
	if y <= -1.3e+110:
		tmp = y * b
	elif y <= -5.6e+63:
		tmp = t * -a
	elif y <= -8e+37:
		tmp = t_1
	elif y <= -2.15e-89:
		tmp = x + z
	elif y <= -1.16e-119:
		tmp = t * b
	elif y <= 2.1e-48:
		tmp = x + z
	elif y <= 5.6e+66:
		tmp = t * b
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(y * Float64(-z))
	tmp = 0.0
	if (y <= -1.3e+110)
		tmp = Float64(y * b);
	elseif (y <= -5.6e+63)
		tmp = Float64(t * Float64(-a));
	elseif (y <= -8e+37)
		tmp = t_1;
	elseif (y <= -2.15e-89)
		tmp = Float64(x + z);
	elseif (y <= -1.16e-119)
		tmp = Float64(t * b);
	elseif (y <= 2.1e-48)
		tmp = Float64(x + z);
	elseif (y <= 5.6e+66)
		tmp = Float64(t * b);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = y * -z;
	tmp = 0.0;
	if (y <= -1.3e+110)
		tmp = y * b;
	elseif (y <= -5.6e+63)
		tmp = t * -a;
	elseif (y <= -8e+37)
		tmp = t_1;
	elseif (y <= -2.15e-89)
		tmp = x + z;
	elseif (y <= -1.16e-119)
		tmp = t * b;
	elseif (y <= 2.1e-48)
		tmp = x + z;
	elseif (y <= 5.6e+66)
		tmp = t * b;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y * (-z)), $MachinePrecision]}, If[LessEqual[y, -1.3e+110], N[(y * b), $MachinePrecision], If[LessEqual[y, -5.6e+63], N[(t * (-a)), $MachinePrecision], If[LessEqual[y, -8e+37], t$95$1, If[LessEqual[y, -2.15e-89], N[(x + z), $MachinePrecision], If[LessEqual[y, -1.16e-119], N[(t * b), $MachinePrecision], If[LessEqual[y, 2.1e-48], N[(x + z), $MachinePrecision], If[LessEqual[y, 5.6e+66], N[(t * b), $MachinePrecision], t$95$1]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \left(-z\right)\\
\mathbf{if}\;y \leq -1.3 \cdot 10^{+110}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;y \leq -5.6 \cdot 10^{+63}:\\
\;\;\;\;t \cdot \left(-a\right)\\

\mathbf{elif}\;y \leq -8 \cdot 10^{+37}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq -2.15 \cdot 10^{-89}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;y \leq -1.16 \cdot 10^{-119}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;y \leq 2.1 \cdot 10^{-48}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;y \leq 5.6 \cdot 10^{+66}:\\
\;\;\;\;t \cdot b\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -1.3e110

    1. Initial program 78.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 81.9%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]
    3. Taylor expanded in b around inf 60.4%

      \[\leadsto \color{blue}{b \cdot y} \]

    if -1.3e110 < y < -5.59999999999999974e63

    1. Initial program 83.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around inf 59.0%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
    3. Taylor expanded in t around inf 51.1%

      \[\leadsto \color{blue}{-1 \cdot \left(a \cdot t\right)} \]
    4. Step-by-step derivation
      1. associate-*r*51.1%

        \[\leadsto \color{blue}{\left(-1 \cdot a\right) \cdot t} \]
      2. mul-1-neg51.1%

        \[\leadsto \color{blue}{\left(-a\right)} \cdot t \]
    5. Simplified51.1%

      \[\leadsto \color{blue}{\left(-a\right) \cdot t} \]

    if -5.59999999999999974e63 < y < -7.99999999999999963e37 or 5.6000000000000001e66 < y

    1. Initial program 84.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 41.9%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    3. Taylor expanded in y around inf 41.9%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    4. Step-by-step derivation
      1. mul-1-neg41.9%

        \[\leadsto \color{blue}{-y \cdot z} \]
      2. distribute-rgt-neg-in41.9%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
    5. Simplified41.9%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]

    if -7.99999999999999963e37 < y < -2.14999999999999993e-89 or -1.16e-119 < y < 2.09999999999999989e-48

    1. Initial program 98.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 74.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 73.5%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+73.5%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg73.5%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval73.5%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-173.5%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified73.5%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in b around 0 48.0%

      \[\leadsto \color{blue}{x + z} \]

    if -2.14999999999999993e-89 < y < -1.16e-119 or 2.09999999999999989e-48 < y < 5.6000000000000001e66

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 53.4%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    3. Taylor expanded in t around inf 43.8%

      \[\leadsto b \cdot \color{blue}{t} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification47.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.3 \cdot 10^{+110}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -5.6 \cdot 10^{+63}:\\ \;\;\;\;t \cdot \left(-a\right)\\ \mathbf{elif}\;y \leq -8 \cdot 10^{+37}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;y \leq -2.15 \cdot 10^{-89}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq -1.16 \cdot 10^{-119}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 2.1 \cdot 10^{-48}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq 5.6 \cdot 10^{+66}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \end{array} \]

Alternative 9: 39.5% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;a \leq -7.8 \cdot 10^{+32}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;a \leq -2.25 \cdot 10^{-167}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;a \leq 1.75 \cdot 10^{-276}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;a \leq 125:\\ \;\;\;\;x + z\\ \mathbf{elif}\;a \leq 10^{+44}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;a \leq 2.5 \cdot 10^{+73}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t))))
   (if (<= a -7.8e+32)
     t_1
     (if (<= a -2.25e-167)
       (+ x z)
       (if (<= a 1.75e-276)
         (* y b)
         (if (<= a 125.0)
           (+ x z)
           (if (<= a 1e+44) (* t b) (if (<= a 2.5e+73) (* y (- z)) t_1))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a * (1.0 - t);
	double tmp;
	if (a <= -7.8e+32) {
		tmp = t_1;
	} else if (a <= -2.25e-167) {
		tmp = x + z;
	} else if (a <= 1.75e-276) {
		tmp = y * b;
	} else if (a <= 125.0) {
		tmp = x + z;
	} else if (a <= 1e+44) {
		tmp = t * b;
	} else if (a <= 2.5e+73) {
		tmp = y * -z;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: tmp
    t_1 = a * (1.0d0 - t)
    if (a <= (-7.8d+32)) then
        tmp = t_1
    else if (a <= (-2.25d-167)) then
        tmp = x + z
    else if (a <= 1.75d-276) then
        tmp = y * b
    else if (a <= 125.0d0) then
        tmp = x + z
    else if (a <= 1d+44) then
        tmp = t * b
    else if (a <= 2.5d+73) then
        tmp = y * -z
    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 t_1 = a * (1.0 - t);
	double tmp;
	if (a <= -7.8e+32) {
		tmp = t_1;
	} else if (a <= -2.25e-167) {
		tmp = x + z;
	} else if (a <= 1.75e-276) {
		tmp = y * b;
	} else if (a <= 125.0) {
		tmp = x + z;
	} else if (a <= 1e+44) {
		tmp = t * b;
	} else if (a <= 2.5e+73) {
		tmp = y * -z;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	tmp = 0
	if a <= -7.8e+32:
		tmp = t_1
	elif a <= -2.25e-167:
		tmp = x + z
	elif a <= 1.75e-276:
		tmp = y * b
	elif a <= 125.0:
		tmp = x + z
	elif a <= 1e+44:
		tmp = t * b
	elif a <= 2.5e+73:
		tmp = y * -z
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a * Float64(1.0 - t))
	tmp = 0.0
	if (a <= -7.8e+32)
		tmp = t_1;
	elseif (a <= -2.25e-167)
		tmp = Float64(x + z);
	elseif (a <= 1.75e-276)
		tmp = Float64(y * b);
	elseif (a <= 125.0)
		tmp = Float64(x + z);
	elseif (a <= 1e+44)
		tmp = Float64(t * b);
	elseif (a <= 2.5e+73)
		tmp = Float64(y * Float64(-z));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = a * (1.0 - t);
	tmp = 0.0;
	if (a <= -7.8e+32)
		tmp = t_1;
	elseif (a <= -2.25e-167)
		tmp = x + z;
	elseif (a <= 1.75e-276)
		tmp = y * b;
	elseif (a <= 125.0)
		tmp = x + z;
	elseif (a <= 1e+44)
		tmp = t * b;
	elseif (a <= 2.5e+73)
		tmp = y * -z;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[a, -7.8e+32], t$95$1, If[LessEqual[a, -2.25e-167], N[(x + z), $MachinePrecision], If[LessEqual[a, 1.75e-276], N[(y * b), $MachinePrecision], If[LessEqual[a, 125.0], N[(x + z), $MachinePrecision], If[LessEqual[a, 1e+44], N[(t * b), $MachinePrecision], If[LessEqual[a, 2.5e+73], N[(y * (-z)), $MachinePrecision], t$95$1]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;a \leq -7.8 \cdot 10^{+32}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;a \leq -2.25 \cdot 10^{-167}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;a \leq 1.75 \cdot 10^{-276}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;a \leq 125:\\
\;\;\;\;x + z\\

\mathbf{elif}\;a \leq 10^{+44}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;a \leq 2.5 \cdot 10^{+73}:\\
\;\;\;\;y \cdot \left(-z\right)\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if a < -7.7999999999999998e32 or 2.49999999999999988e73 < a

    1. Initial program 86.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around inf 58.5%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]

    if -7.7999999999999998e32 < a < -2.2500000000000001e-167 or 1.74999999999999996e-276 < a < 125

    1. Initial program 97.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 95.6%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 71.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+71.0%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg71.0%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval71.0%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-171.0%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified71.0%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in b around 0 44.9%

      \[\leadsto \color{blue}{x + z} \]

    if -2.2500000000000001e-167 < a < 1.74999999999999996e-276

    1. Initial program 91.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 49.1%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]
    3. Taylor expanded in b around inf 32.5%

      \[\leadsto \color{blue}{b \cdot y} \]

    if 125 < a < 1.0000000000000001e44

    1. Initial program 83.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 84.3%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    3. Taylor expanded in t around inf 83.4%

      \[\leadsto b \cdot \color{blue}{t} \]

    if 1.0000000000000001e44 < a < 2.49999999999999988e73

    1. Initial program 99.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 75.8%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    3. Taylor expanded in y around inf 40.5%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    4. Step-by-step derivation
      1. mul-1-neg40.5%

        \[\leadsto \color{blue}{-y \cdot z} \]
      2. distribute-rgt-neg-in40.5%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
    5. Simplified40.5%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification49.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -7.8 \cdot 10^{+32}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;a \leq -2.25 \cdot 10^{-167}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;a \leq 1.75 \cdot 10^{-276}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;a \leq 125:\\ \;\;\;\;x + z\\ \mathbf{elif}\;a \leq 10^{+44}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;a \leq 2.5 \cdot 10^{+73}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \end{array} \]

Alternative 10: 49.0% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \left(b - a\right)\\ t_2 := y \cdot \left(b - z\right)\\ \mathbf{if}\;y \leq -4.4 \cdot 10^{+109}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;y \leq -3.7 \cdot 10^{+15}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq -3.2 \cdot 10^{-87}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq -1.55 \cdot 10^{-134}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq 1.25 \cdot 10^{-102}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq 1.12 \cdot 10^{+79}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* t (- b a))) (t_2 (* y (- b z))))
   (if (<= y -4.4e+109)
     t_2
     (if (<= y -3.7e+15)
       t_1
       (if (<= y -3.2e-87)
         (+ x z)
         (if (<= y -1.55e-134)
           t_1
           (if (<= y 1.25e-102) (+ x z) (if (<= y 1.12e+79) t_1 t_2))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = t * (b - a);
	double t_2 = y * (b - z);
	double tmp;
	if (y <= -4.4e+109) {
		tmp = t_2;
	} else if (y <= -3.7e+15) {
		tmp = t_1;
	} else if (y <= -3.2e-87) {
		tmp = x + z;
	} else if (y <= -1.55e-134) {
		tmp = t_1;
	} else if (y <= 1.25e-102) {
		tmp = x + z;
	} else if (y <= 1.12e+79) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = t * (b - a)
    t_2 = y * (b - z)
    if (y <= (-4.4d+109)) then
        tmp = t_2
    else if (y <= (-3.7d+15)) then
        tmp = t_1
    else if (y <= (-3.2d-87)) then
        tmp = x + z
    else if (y <= (-1.55d-134)) then
        tmp = t_1
    else if (y <= 1.25d-102) then
        tmp = x + z
    else if (y <= 1.12d+79) 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 t_1 = t * (b - a);
	double t_2 = y * (b - z);
	double tmp;
	if (y <= -4.4e+109) {
		tmp = t_2;
	} else if (y <= -3.7e+15) {
		tmp = t_1;
	} else if (y <= -3.2e-87) {
		tmp = x + z;
	} else if (y <= -1.55e-134) {
		tmp = t_1;
	} else if (y <= 1.25e-102) {
		tmp = x + z;
	} else if (y <= 1.12e+79) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = t * (b - a)
	t_2 = y * (b - z)
	tmp = 0
	if y <= -4.4e+109:
		tmp = t_2
	elif y <= -3.7e+15:
		tmp = t_1
	elif y <= -3.2e-87:
		tmp = x + z
	elif y <= -1.55e-134:
		tmp = t_1
	elif y <= 1.25e-102:
		tmp = x + z
	elif y <= 1.12e+79:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(t * Float64(b - a))
	t_2 = Float64(y * Float64(b - z))
	tmp = 0.0
	if (y <= -4.4e+109)
		tmp = t_2;
	elseif (y <= -3.7e+15)
		tmp = t_1;
	elseif (y <= -3.2e-87)
		tmp = Float64(x + z);
	elseif (y <= -1.55e-134)
		tmp = t_1;
	elseif (y <= 1.25e-102)
		tmp = Float64(x + z);
	elseif (y <= 1.12e+79)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = t * (b - a);
	t_2 = y * (b - z);
	tmp = 0.0;
	if (y <= -4.4e+109)
		tmp = t_2;
	elseif (y <= -3.7e+15)
		tmp = t_1;
	elseif (y <= -3.2e-87)
		tmp = x + z;
	elseif (y <= -1.55e-134)
		tmp = t_1;
	elseif (y <= 1.25e-102)
		tmp = x + z;
	elseif (y <= 1.12e+79)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(y * N[(b - z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -4.4e+109], t$95$2, If[LessEqual[y, -3.7e+15], t$95$1, If[LessEqual[y, -3.2e-87], N[(x + z), $MachinePrecision], If[LessEqual[y, -1.55e-134], t$95$1, If[LessEqual[y, 1.25e-102], N[(x + z), $MachinePrecision], If[LessEqual[y, 1.12e+79], t$95$1, t$95$2]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \left(b - a\right)\\
t_2 := y \cdot \left(b - z\right)\\
\mathbf{if}\;y \leq -4.4 \cdot 10^{+109}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;y \leq -3.7 \cdot 10^{+15}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq -3.2 \cdot 10^{-87}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;y \leq -1.55 \cdot 10^{-134}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq 1.25 \cdot 10^{-102}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;y \leq 1.12 \cdot 10^{+79}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;t_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -4.3999999999999998e109 or 1.12e79 < y

    1. Initial program 81.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 71.6%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]

    if -4.3999999999999998e109 < y < -3.7e15 or -3.19999999999999979e-87 < y < -1.55000000000000003e-134 or 1.25000000000000006e-102 < y < 1.12e79

    1. Initial program 95.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in t around inf 51.9%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]

    if -3.7e15 < y < -3.19999999999999979e-87 or -1.55000000000000003e-134 < y < 1.25000000000000006e-102

    1. Initial program 98.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 75.4%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 75.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+75.3%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg75.3%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval75.3%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-175.3%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified75.3%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in b around 0 52.8%

      \[\leadsto \color{blue}{x + z} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification59.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.4 \cdot 10^{+109}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;y \leq -3.7 \cdot 10^{+15}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;y \leq -3.2 \cdot 10^{-87}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq -1.55 \cdot 10^{-134}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;y \leq 1.25 \cdot 10^{-102}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq 1.12 \cdot 10^{+79}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \end{array} \]

Alternative 11: 62.0% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;b \leq -1.2 \cdot 10^{+64}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;b \leq 2.05 \cdot 10^{-290}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 1.7 \cdot 10^{+24} \lor \neg \left(b \leq 1.35 \cdot 10^{+42}\right) \land b \leq 8.5 \cdot 10^{+100}:\\ \;\;\;\;x + \left(z - y \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* b (- (+ y t) 2.0))))
   (if (<= b -1.2e+64)
     t_1
     (if (<= b 2.05e-290)
       (+ x (* a (- 1.0 t)))
       (if (or (<= b 1.7e+24) (and (not (<= b 1.35e+42)) (<= b 8.5e+100)))
         (+ x (- z (* y z)))
         t_1)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -1.2e+64) {
		tmp = t_1;
	} else if (b <= 2.05e-290) {
		tmp = x + (a * (1.0 - t));
	} else if ((b <= 1.7e+24) || (!(b <= 1.35e+42) && (b <= 8.5e+100))) {
		tmp = x + (z - (y * z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: tmp
    t_1 = b * ((y + t) - 2.0d0)
    if (b <= (-1.2d+64)) then
        tmp = t_1
    else if (b <= 2.05d-290) then
        tmp = x + (a * (1.0d0 - t))
    else if ((b <= 1.7d+24) .or. (.not. (b <= 1.35d+42)) .and. (b <= 8.5d+100)) then
        tmp = x + (z - (y * z))
    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 t_1 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -1.2e+64) {
		tmp = t_1;
	} else if (b <= 2.05e-290) {
		tmp = x + (a * (1.0 - t));
	} else if ((b <= 1.7e+24) || (!(b <= 1.35e+42) && (b <= 8.5e+100))) {
		tmp = x + (z - (y * z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = b * ((y + t) - 2.0)
	tmp = 0
	if b <= -1.2e+64:
		tmp = t_1
	elif b <= 2.05e-290:
		tmp = x + (a * (1.0 - t))
	elif (b <= 1.7e+24) or (not (b <= 1.35e+42) and (b <= 8.5e+100)):
		tmp = x + (z - (y * z))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(b * Float64(Float64(y + t) - 2.0))
	tmp = 0.0
	if (b <= -1.2e+64)
		tmp = t_1;
	elseif (b <= 2.05e-290)
		tmp = Float64(x + Float64(a * Float64(1.0 - t)));
	elseif ((b <= 1.7e+24) || (!(b <= 1.35e+42) && (b <= 8.5e+100)))
		tmp = Float64(x + Float64(z - Float64(y * z)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = b * ((y + t) - 2.0);
	tmp = 0.0;
	if (b <= -1.2e+64)
		tmp = t_1;
	elseif (b <= 2.05e-290)
		tmp = x + (a * (1.0 - t));
	elseif ((b <= 1.7e+24) || (~((b <= 1.35e+42)) && (b <= 8.5e+100)))
		tmp = x + (z - (y * z));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1.2e+64], t$95$1, If[LessEqual[b, 2.05e-290], N[(x + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[b, 1.7e+24], And[N[Not[LessEqual[b, 1.35e+42]], $MachinePrecision], LessEqual[b, 8.5e+100]]], N[(x + N[(z - N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;b \leq -1.2 \cdot 10^{+64}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;b \leq 2.05 \cdot 10^{-290}:\\
\;\;\;\;x + a \cdot \left(1 - t\right)\\

\mathbf{elif}\;b \leq 1.7 \cdot 10^{+24} \lor \neg \left(b \leq 1.35 \cdot 10^{+42}\right) \land b \leq 8.5 \cdot 10^{+100}:\\
\;\;\;\;x + \left(z - y \cdot z\right)\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -1.2e64 or 1.7e24 < b < 1.35e42 or 8.50000000000000043e100 < b

    1. Initial program 84.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 73.7%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]

    if -1.2e64 < b < 2.0500000000000001e-290

    1. Initial program 97.5%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 88.8%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in a around inf 62.6%

      \[\leadsto x - \color{blue}{a \cdot \left(t - 1\right)} \]

    if 2.0500000000000001e-290 < b < 1.7e24 or 1.35e42 < b < 8.50000000000000043e100

    1. Initial program 96.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 97.1%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in a around 0 73.8%

      \[\leadsto x - \color{blue}{z \cdot \left(y - 1\right)} \]
    4. Step-by-step derivation
      1. sub-neg73.8%

        \[\leadsto x - z \cdot \color{blue}{\left(y + \left(-1\right)\right)} \]
      2. metadata-eval73.8%

        \[\leadsto x - z \cdot \left(y + \color{blue}{-1}\right) \]
      3. distribute-rgt-in73.8%

        \[\leadsto x - \color{blue}{\left(y \cdot z + -1 \cdot z\right)} \]
      4. neg-mul-173.8%

        \[\leadsto x - \left(y \cdot z + \color{blue}{\left(-z\right)}\right) \]
      5. unsub-neg73.8%

        \[\leadsto x - \color{blue}{\left(y \cdot z - z\right)} \]
    5. Simplified73.8%

      \[\leadsto x - \color{blue}{\left(y \cdot z - z\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification70.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.2 \cdot 10^{+64}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq 2.05 \cdot 10^{-290}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 1.7 \cdot 10^{+24} \lor \neg \left(b \leq 1.35 \cdot 10^{+42}\right) \land b \leq 8.5 \cdot 10^{+100}:\\ \;\;\;\;x + \left(z - y \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]

Alternative 12: 71.1% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -6.5 \cdot 10^{+42} \lor \neg \left(b \leq 1.5 \cdot 10^{+24}\right) \land \left(b \leq 7.5 \cdot 10^{+38} \lor \neg \left(b \leq 3.1 \cdot 10^{+98}\right)\right):\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(a + \left(z - y \cdot z\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= b -6.5e+42)
         (and (not (<= b 1.5e+24)) (or (<= b 7.5e+38) (not (<= b 3.1e+98)))))
   (- x (* b (- 2.0 (+ y t))))
   (+ x (+ a (- z (* y z))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -6.5e+42) || (!(b <= 1.5e+24) && ((b <= 7.5e+38) || !(b <= 3.1e+98)))) {
		tmp = x - (b * (2.0 - (y + t)));
	} else {
		tmp = x + (a + (z - (y * z)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if ((b <= (-6.5d+42)) .or. (.not. (b <= 1.5d+24)) .and. (b <= 7.5d+38) .or. (.not. (b <= 3.1d+98))) then
        tmp = x - (b * (2.0d0 - (y + t)))
    else
        tmp = x + (a + (z - (y * z)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -6.5e+42) || (!(b <= 1.5e+24) && ((b <= 7.5e+38) || !(b <= 3.1e+98)))) {
		tmp = x - (b * (2.0 - (y + t)));
	} else {
		tmp = x + (a + (z - (y * z)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (b <= -6.5e+42) or (not (b <= 1.5e+24) and ((b <= 7.5e+38) or not (b <= 3.1e+98))):
		tmp = x - (b * (2.0 - (y + t)))
	else:
		tmp = x + (a + (z - (y * z)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((b <= -6.5e+42) || (!(b <= 1.5e+24) && ((b <= 7.5e+38) || !(b <= 3.1e+98))))
		tmp = Float64(x - Float64(b * Float64(2.0 - Float64(y + t))));
	else
		tmp = Float64(x + Float64(a + Float64(z - Float64(y * z))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((b <= -6.5e+42) || (~((b <= 1.5e+24)) && ((b <= 7.5e+38) || ~((b <= 3.1e+98)))))
		tmp = x - (b * (2.0 - (y + t)));
	else
		tmp = x + (a + (z - (y * z)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[b, -6.5e+42], And[N[Not[LessEqual[b, 1.5e+24]], $MachinePrecision], Or[LessEqual[b, 7.5e+38], N[Not[LessEqual[b, 3.1e+98]], $MachinePrecision]]]], N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(a + N[(z - N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -6.5 \cdot 10^{+42} \lor \neg \left(b \leq 1.5 \cdot 10^{+24}\right) \land \left(b \leq 7.5 \cdot 10^{+38} \lor \neg \left(b \leq 3.1 \cdot 10^{+98}\right)\right):\\
\;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -6.50000000000000052e42 or 1.49999999999999997e24 < b < 7.4999999999999999e38 or 3.10000000000000019e98 < b

    1. Initial program 85.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 83.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in z around 0 79.1%

      \[\leadsto \color{blue}{x + b \cdot \left(\left(t + y\right) - 2\right)} \]

    if -6.50000000000000052e42 < b < 1.49999999999999997e24 or 7.4999999999999999e38 < b < 3.10000000000000019e98

    1. Initial program 97.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 93.6%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in t around 0 69.7%

      \[\leadsto x - \color{blue}{\left(-1 \cdot a + z \cdot \left(y - 1\right)\right)} \]
    4. Step-by-step derivation
      1. +-commutative69.7%

        \[\leadsto x - \color{blue}{\left(z \cdot \left(y - 1\right) + -1 \cdot a\right)} \]
      2. sub-neg69.7%

        \[\leadsto x - \left(z \cdot \color{blue}{\left(y + \left(-1\right)\right)} + -1 \cdot a\right) \]
      3. metadata-eval69.7%

        \[\leadsto x - \left(z \cdot \left(y + \color{blue}{-1}\right) + -1 \cdot a\right) \]
      4. mul-1-neg69.7%

        \[\leadsto x - \left(z \cdot \left(y + -1\right) + \color{blue}{\left(-a\right)}\right) \]
      5. unsub-neg69.7%

        \[\leadsto x - \color{blue}{\left(z \cdot \left(y + -1\right) - a\right)} \]
      6. distribute-rgt-in69.7%

        \[\leadsto x - \left(\color{blue}{\left(y \cdot z + -1 \cdot z\right)} - a\right) \]
      7. neg-mul-169.7%

        \[\leadsto x - \left(\left(y \cdot z + \color{blue}{\left(-z\right)}\right) - a\right) \]
      8. unsub-neg69.7%

        \[\leadsto x - \left(\color{blue}{\left(y \cdot z - z\right)} - a\right) \]
    5. Simplified69.7%

      \[\leadsto x - \color{blue}{\left(\left(y \cdot z - z\right) - a\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification73.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -6.5 \cdot 10^{+42} \lor \neg \left(b \leq 1.5 \cdot 10^{+24}\right) \land \left(b \leq 7.5 \cdot 10^{+38} \lor \neg \left(b \leq 3.1 \cdot 10^{+98}\right)\right):\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(a + \left(z - y \cdot z\right)\right)\\ \end{array} \]

Alternative 13: 83.0% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{if}\;b \leq -9 \cdot 10^{+42}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;b \leq 1.7 \cdot 10^{+24}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \mathbf{elif}\;b \leq 1.15 \cdot 10^{+39} \lor \neg \left(b \leq 2.5 \cdot 10^{+97}\right):\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;x + \left(a + \left(z - y \cdot z\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (- x (* b (- 2.0 (+ y t))))))
   (if (<= b -9e+42)
     t_1
     (if (<= b 1.7e+24)
       (+ x (+ (* a (- 1.0 t)) (* z (- 1.0 y))))
       (if (or (<= b 1.15e+39) (not (<= b 2.5e+97)))
         t_1
         (+ x (+ a (- z (* y z)))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x - (b * (2.0 - (y + t)));
	double tmp;
	if (b <= -9e+42) {
		tmp = t_1;
	} else if (b <= 1.7e+24) {
		tmp = x + ((a * (1.0 - t)) + (z * (1.0 - y)));
	} else if ((b <= 1.15e+39) || !(b <= 2.5e+97)) {
		tmp = t_1;
	} else {
		tmp = x + (a + (z - (y * z)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: tmp
    t_1 = x - (b * (2.0d0 - (y + t)))
    if (b <= (-9d+42)) then
        tmp = t_1
    else if (b <= 1.7d+24) then
        tmp = x + ((a * (1.0d0 - t)) + (z * (1.0d0 - y)))
    else if ((b <= 1.15d+39) .or. (.not. (b <= 2.5d+97))) then
        tmp = t_1
    else
        tmp = x + (a + (z - (y * z)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x - (b * (2.0 - (y + t)));
	double tmp;
	if (b <= -9e+42) {
		tmp = t_1;
	} else if (b <= 1.7e+24) {
		tmp = x + ((a * (1.0 - t)) + (z * (1.0 - y)));
	} else if ((b <= 1.15e+39) || !(b <= 2.5e+97)) {
		tmp = t_1;
	} else {
		tmp = x + (a + (z - (y * z)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x - (b * (2.0 - (y + t)))
	tmp = 0
	if b <= -9e+42:
		tmp = t_1
	elif b <= 1.7e+24:
		tmp = x + ((a * (1.0 - t)) + (z * (1.0 - y)))
	elif (b <= 1.15e+39) or not (b <= 2.5e+97):
		tmp = t_1
	else:
		tmp = x + (a + (z - (y * z)))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x - Float64(b * Float64(2.0 - Float64(y + t))))
	tmp = 0.0
	if (b <= -9e+42)
		tmp = t_1;
	elseif (b <= 1.7e+24)
		tmp = Float64(x + Float64(Float64(a * Float64(1.0 - t)) + Float64(z * Float64(1.0 - y))));
	elseif ((b <= 1.15e+39) || !(b <= 2.5e+97))
		tmp = t_1;
	else
		tmp = Float64(x + Float64(a + Float64(z - Float64(y * z))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x - (b * (2.0 - (y + t)));
	tmp = 0.0;
	if (b <= -9e+42)
		tmp = t_1;
	elseif (b <= 1.7e+24)
		tmp = x + ((a * (1.0 - t)) + (z * (1.0 - y)));
	elseif ((b <= 1.15e+39) || ~((b <= 2.5e+97)))
		tmp = t_1;
	else
		tmp = x + (a + (z - (y * z)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -9e+42], t$95$1, If[LessEqual[b, 1.7e+24], N[(x + N[(N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision] + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[Or[LessEqual[b, 1.15e+39], N[Not[LessEqual[b, 2.5e+97]], $MachinePrecision]], t$95$1, N[(x + N[(a + N[(z - N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x - b \cdot \left(2 - \left(y + t\right)\right)\\
\mathbf{if}\;b \leq -9 \cdot 10^{+42}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;b \leq 1.7 \cdot 10^{+24}:\\
\;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\

\mathbf{elif}\;b \leq 1.15 \cdot 10^{+39} \lor \neg \left(b \leq 2.5 \cdot 10^{+97}\right):\\
\;\;\;\;t_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -9.00000000000000025e42 or 1.7e24 < b < 1.15000000000000006e39 or 2.49999999999999999e97 < b

    1. Initial program 85.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 83.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in z around 0 79.1%

      \[\leadsto \color{blue}{x + b \cdot \left(\left(t + y\right) - 2\right)} \]

    if -9.00000000000000025e42 < b < 1.7e24

    1. Initial program 98.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 94.6%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]

    if 1.15000000000000006e39 < b < 2.49999999999999999e97

    1. Initial program 81.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 82.2%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in t around 0 82.6%

      \[\leadsto x - \color{blue}{\left(-1 \cdot a + z \cdot \left(y - 1\right)\right)} \]
    4. Step-by-step derivation
      1. +-commutative82.6%

        \[\leadsto x - \color{blue}{\left(z \cdot \left(y - 1\right) + -1 \cdot a\right)} \]
      2. sub-neg82.6%

        \[\leadsto x - \left(z \cdot \color{blue}{\left(y + \left(-1\right)\right)} + -1 \cdot a\right) \]
      3. metadata-eval82.6%

        \[\leadsto x - \left(z \cdot \left(y + \color{blue}{-1}\right) + -1 \cdot a\right) \]
      4. mul-1-neg82.6%

        \[\leadsto x - \left(z \cdot \left(y + -1\right) + \color{blue}{\left(-a\right)}\right) \]
      5. unsub-neg82.6%

        \[\leadsto x - \color{blue}{\left(z \cdot \left(y + -1\right) - a\right)} \]
      6. distribute-rgt-in82.6%

        \[\leadsto x - \left(\color{blue}{\left(y \cdot z + -1 \cdot z\right)} - a\right) \]
      7. neg-mul-182.6%

        \[\leadsto x - \left(\left(y \cdot z + \color{blue}{\left(-z\right)}\right) - a\right) \]
      8. unsub-neg82.6%

        \[\leadsto x - \left(\color{blue}{\left(y \cdot z - z\right)} - a\right) \]
    5. Simplified82.6%

      \[\leadsto x - \color{blue}{\left(\left(y \cdot z - z\right) - a\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification87.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -9 \cdot 10^{+42}:\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{elif}\;b \leq 1.7 \cdot 10^{+24}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \mathbf{elif}\;b \leq 1.15 \cdot 10^{+39} \lor \neg \left(b \leq 2.5 \cdot 10^{+97}\right):\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(a + \left(z - y \cdot z\right)\right)\\ \end{array} \]

Alternative 14: 41.3% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(t - 2\right)\\ t_2 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;a \leq -4 \cdot 10^{+31}:\\ \;\;\;\;t_2\\ \mathbf{elif}\;a \leq -7.5 \cdot 10^{-140}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;a \leq 4.3 \cdot 10^{-277}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;a \leq 1.15 \cdot 10^{-40}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;a \leq 2 \cdot 10^{+106}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* b (- t 2.0))) (t_2 (* a (- 1.0 t))))
   (if (<= a -4e+31)
     t_2
     (if (<= a -7.5e-140)
       (+ x z)
       (if (<= a 4.3e-277)
         t_1
         (if (<= a 1.15e-40) (+ x z) (if (<= a 2e+106) t_1 t_2)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = b * (t - 2.0);
	double t_2 = a * (1.0 - t);
	double tmp;
	if (a <= -4e+31) {
		tmp = t_2;
	} else if (a <= -7.5e-140) {
		tmp = x + z;
	} else if (a <= 4.3e-277) {
		tmp = t_1;
	} else if (a <= 1.15e-40) {
		tmp = x + z;
	} else if (a <= 2e+106) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = b * (t - 2.0d0)
    t_2 = a * (1.0d0 - t)
    if (a <= (-4d+31)) then
        tmp = t_2
    else if (a <= (-7.5d-140)) then
        tmp = x + z
    else if (a <= 4.3d-277) then
        tmp = t_1
    else if (a <= 1.15d-40) then
        tmp = x + z
    else if (a <= 2d+106) 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 t_1 = b * (t - 2.0);
	double t_2 = a * (1.0 - t);
	double tmp;
	if (a <= -4e+31) {
		tmp = t_2;
	} else if (a <= -7.5e-140) {
		tmp = x + z;
	} else if (a <= 4.3e-277) {
		tmp = t_1;
	} else if (a <= 1.15e-40) {
		tmp = x + z;
	} else if (a <= 2e+106) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = b * (t - 2.0)
	t_2 = a * (1.0 - t)
	tmp = 0
	if a <= -4e+31:
		tmp = t_2
	elif a <= -7.5e-140:
		tmp = x + z
	elif a <= 4.3e-277:
		tmp = t_1
	elif a <= 1.15e-40:
		tmp = x + z
	elif a <= 2e+106:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(b * Float64(t - 2.0))
	t_2 = Float64(a * Float64(1.0 - t))
	tmp = 0.0
	if (a <= -4e+31)
		tmp = t_2;
	elseif (a <= -7.5e-140)
		tmp = Float64(x + z);
	elseif (a <= 4.3e-277)
		tmp = t_1;
	elseif (a <= 1.15e-40)
		tmp = Float64(x + z);
	elseif (a <= 2e+106)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = b * (t - 2.0);
	t_2 = a * (1.0 - t);
	tmp = 0.0;
	if (a <= -4e+31)
		tmp = t_2;
	elseif (a <= -7.5e-140)
		tmp = x + z;
	elseif (a <= 4.3e-277)
		tmp = t_1;
	elseif (a <= 1.15e-40)
		tmp = x + z;
	elseif (a <= 2e+106)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(b * N[(t - 2.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[a, -4e+31], t$95$2, If[LessEqual[a, -7.5e-140], N[(x + z), $MachinePrecision], If[LessEqual[a, 4.3e-277], t$95$1, If[LessEqual[a, 1.15e-40], N[(x + z), $MachinePrecision], If[LessEqual[a, 2e+106], t$95$1, t$95$2]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b \cdot \left(t - 2\right)\\
t_2 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;a \leq -4 \cdot 10^{+31}:\\
\;\;\;\;t_2\\

\mathbf{elif}\;a \leq -7.5 \cdot 10^{-140}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;a \leq 4.3 \cdot 10^{-277}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;a \leq 1.15 \cdot 10^{-40}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;a \leq 2 \cdot 10^{+106}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;t_2\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if a < -3.9999999999999999e31 or 2.00000000000000018e106 < a

    1. Initial program 87.5%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around inf 59.6%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]

    if -3.9999999999999999e31 < a < -7.4999999999999998e-140 or 4.2999999999999999e-277 < a < 1.15e-40

    1. Initial program 97.5%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 95.1%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 69.9%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+69.9%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg69.9%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval69.9%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-169.9%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified69.9%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in b around 0 47.9%

      \[\leadsto \color{blue}{x + z} \]

    if -7.4999999999999998e-140 < a < 4.2999999999999999e-277 or 1.15e-40 < a < 2.00000000000000018e106

    1. Initial program 91.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 62.1%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    3. Taylor expanded in y around 0 40.8%

      \[\leadsto b \cdot \color{blue}{\left(t - 2\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification50.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -4 \cdot 10^{+31}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;a \leq -7.5 \cdot 10^{-140}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;a \leq 4.3 \cdot 10^{-277}:\\ \;\;\;\;b \cdot \left(t - 2\right)\\ \mathbf{elif}\;a \leq 1.15 \cdot 10^{-40}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;a \leq 2 \cdot 10^{+106}:\\ \;\;\;\;b \cdot \left(t - 2\right)\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \end{array} \]

Alternative 15: 65.2% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{if}\;b \leq -2.6 \cdot 10^{+42}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;b \leq 4.4 \cdot 10^{-290}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 7.8 \cdot 10^{+23}:\\ \;\;\;\;x + \left(z - y \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (- x (* b (- 2.0 (+ y t))))))
   (if (<= b -2.6e+42)
     t_1
     (if (<= b 4.4e-290)
       (+ x (* a (- 1.0 t)))
       (if (<= b 7.8e+23) (+ x (- z (* y z))) t_1)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x - (b * (2.0 - (y + t)));
	double tmp;
	if (b <= -2.6e+42) {
		tmp = t_1;
	} else if (b <= 4.4e-290) {
		tmp = x + (a * (1.0 - t));
	} else if (b <= 7.8e+23) {
		tmp = x + (z - (y * z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: tmp
    t_1 = x - (b * (2.0d0 - (y + t)))
    if (b <= (-2.6d+42)) then
        tmp = t_1
    else if (b <= 4.4d-290) then
        tmp = x + (a * (1.0d0 - t))
    else if (b <= 7.8d+23) then
        tmp = x + (z - (y * z))
    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 t_1 = x - (b * (2.0 - (y + t)));
	double tmp;
	if (b <= -2.6e+42) {
		tmp = t_1;
	} else if (b <= 4.4e-290) {
		tmp = x + (a * (1.0 - t));
	} else if (b <= 7.8e+23) {
		tmp = x + (z - (y * z));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x - (b * (2.0 - (y + t)))
	tmp = 0
	if b <= -2.6e+42:
		tmp = t_1
	elif b <= 4.4e-290:
		tmp = x + (a * (1.0 - t))
	elif b <= 7.8e+23:
		tmp = x + (z - (y * z))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x - Float64(b * Float64(2.0 - Float64(y + t))))
	tmp = 0.0
	if (b <= -2.6e+42)
		tmp = t_1;
	elseif (b <= 4.4e-290)
		tmp = Float64(x + Float64(a * Float64(1.0 - t)));
	elseif (b <= 7.8e+23)
		tmp = Float64(x + Float64(z - Float64(y * z)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x - (b * (2.0 - (y + t)));
	tmp = 0.0;
	if (b <= -2.6e+42)
		tmp = t_1;
	elseif (b <= 4.4e-290)
		tmp = x + (a * (1.0 - t));
	elseif (b <= 7.8e+23)
		tmp = x + (z - (y * z));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -2.6e+42], t$95$1, If[LessEqual[b, 4.4e-290], N[(x + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 7.8e+23], N[(x + N[(z - N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x - b \cdot \left(2 - \left(y + t\right)\right)\\
\mathbf{if}\;b \leq -2.6 \cdot 10^{+42}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;b \leq 4.4 \cdot 10^{-290}:\\
\;\;\;\;x + a \cdot \left(1 - t\right)\\

\mathbf{elif}\;b \leq 7.8 \cdot 10^{+23}:\\
\;\;\;\;x + \left(z - y \cdot z\right)\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -2.5999999999999999e42 or 7.8000000000000001e23 < b

    1. Initial program 84.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 81.6%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in z around 0 75.4%

      \[\leadsto \color{blue}{x + b \cdot \left(\left(t + y\right) - 2\right)} \]

    if -2.5999999999999999e42 < b < 4.4000000000000002e-290

    1. Initial program 97.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 91.7%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in a around inf 63.6%

      \[\leadsto x - \color{blue}{a \cdot \left(t - 1\right)} \]

    if 4.4000000000000002e-290 < b < 7.8000000000000001e23

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 98.3%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in a around 0 72.6%

      \[\leadsto x - \color{blue}{z \cdot \left(y - 1\right)} \]
    4. Step-by-step derivation
      1. sub-neg72.6%

        \[\leadsto x - z \cdot \color{blue}{\left(y + \left(-1\right)\right)} \]
      2. metadata-eval72.6%

        \[\leadsto x - z \cdot \left(y + \color{blue}{-1}\right) \]
      3. distribute-rgt-in72.6%

        \[\leadsto x - \color{blue}{\left(y \cdot z + -1 \cdot z\right)} \]
      4. neg-mul-172.6%

        \[\leadsto x - \left(y \cdot z + \color{blue}{\left(-z\right)}\right) \]
      5. unsub-neg72.6%

        \[\leadsto x - \color{blue}{\left(y \cdot z - z\right)} \]
    5. Simplified72.6%

      \[\leadsto x - \color{blue}{\left(y \cdot z - z\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification71.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.6 \cdot 10^{+42}:\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{elif}\;b \leq 4.4 \cdot 10^{-290}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 7.8 \cdot 10^{+23}:\\ \;\;\;\;x + \left(z - y \cdot z\right)\\ \mathbf{else}:\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \end{array} \]

Alternative 16: 35.0% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+79}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -6.8 \cdot 10^{-90}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq -3.2 \cdot 10^{-119}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 1.8 \cdot 10^{-46}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq 5.6 \cdot 10^{+66}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= y -3.5e+79)
   (* y b)
   (if (<= y -6.8e-90)
     (+ x z)
     (if (<= y -3.2e-119)
       (* t b)
       (if (<= y 1.8e-46) (+ x z) (if (<= y 5.6e+66) (* t b) (* y (- z))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (y <= -3.5e+79) {
		tmp = y * b;
	} else if (y <= -6.8e-90) {
		tmp = x + z;
	} else if (y <= -3.2e-119) {
		tmp = t * b;
	} else if (y <= 1.8e-46) {
		tmp = x + z;
	} else if (y <= 5.6e+66) {
		tmp = t * b;
	} else {
		tmp = y * -z;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (y <= (-3.5d+79)) then
        tmp = y * b
    else if (y <= (-6.8d-90)) then
        tmp = x + z
    else if (y <= (-3.2d-119)) then
        tmp = t * b
    else if (y <= 1.8d-46) then
        tmp = x + z
    else if (y <= 5.6d+66) then
        tmp = t * b
    else
        tmp = y * -z
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (y <= -3.5e+79) {
		tmp = y * b;
	} else if (y <= -6.8e-90) {
		tmp = x + z;
	} else if (y <= -3.2e-119) {
		tmp = t * b;
	} else if (y <= 1.8e-46) {
		tmp = x + z;
	} else if (y <= 5.6e+66) {
		tmp = t * b;
	} else {
		tmp = y * -z;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if y <= -3.5e+79:
		tmp = y * b
	elif y <= -6.8e-90:
		tmp = x + z
	elif y <= -3.2e-119:
		tmp = t * b
	elif y <= 1.8e-46:
		tmp = x + z
	elif y <= 5.6e+66:
		tmp = t * b
	else:
		tmp = y * -z
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (y <= -3.5e+79)
		tmp = Float64(y * b);
	elseif (y <= -6.8e-90)
		tmp = Float64(x + z);
	elseif (y <= -3.2e-119)
		tmp = Float64(t * b);
	elseif (y <= 1.8e-46)
		tmp = Float64(x + z);
	elseif (y <= 5.6e+66)
		tmp = Float64(t * b);
	else
		tmp = Float64(y * Float64(-z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (y <= -3.5e+79)
		tmp = y * b;
	elseif (y <= -6.8e-90)
		tmp = x + z;
	elseif (y <= -3.2e-119)
		tmp = t * b;
	elseif (y <= 1.8e-46)
		tmp = x + z;
	elseif (y <= 5.6e+66)
		tmp = t * b;
	else
		tmp = y * -z;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[y, -3.5e+79], N[(y * b), $MachinePrecision], If[LessEqual[y, -6.8e-90], N[(x + z), $MachinePrecision], If[LessEqual[y, -3.2e-119], N[(t * b), $MachinePrecision], If[LessEqual[y, 1.8e-46], N[(x + z), $MachinePrecision], If[LessEqual[y, 5.6e+66], N[(t * b), $MachinePrecision], N[(y * (-z)), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.5 \cdot 10^{+79}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;y \leq -6.8 \cdot 10^{-90}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;y \leq -3.2 \cdot 10^{-119}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;y \leq 1.8 \cdot 10^{-46}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;y \leq 5.6 \cdot 10^{+66}:\\
\;\;\;\;t \cdot b\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -3.4999999999999998e79

    1. Initial program 78.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 76.3%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]
    3. Taylor expanded in b around inf 57.7%

      \[\leadsto \color{blue}{b \cdot y} \]

    if -3.4999999999999998e79 < y < -6.79999999999999988e-90 or -3.19999999999999993e-119 < y < 1.8e-46

    1. Initial program 97.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 71.9%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 68.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+68.3%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg68.3%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval68.3%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-168.3%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified68.3%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in b around 0 44.1%

      \[\leadsto \color{blue}{x + z} \]

    if -6.79999999999999988e-90 < y < -3.19999999999999993e-119 or 1.8e-46 < y < 5.6000000000000001e66

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 53.4%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    3. Taylor expanded in t around inf 43.8%

      \[\leadsto b \cdot \color{blue}{t} \]

    if 5.6000000000000001e66 < y

    1. Initial program 83.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 41.3%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    3. Taylor expanded in y around inf 41.3%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    4. Step-by-step derivation
      1. mul-1-neg41.3%

        \[\leadsto \color{blue}{-y \cdot z} \]
      2. distribute-rgt-neg-in41.3%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
    5. Simplified41.3%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification45.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+79}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -6.8 \cdot 10^{-90}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq -3.2 \cdot 10^{-119}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 1.8 \cdot 10^{-46}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq 5.6 \cdot 10^{+66}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \end{array} \]

Alternative 17: 26.2% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.8 \cdot 10^{+37}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;t \leq -1.95 \cdot 10^{-292}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 3.3 \cdot 10^{-273}:\\ \;\;\;\;z\\ \mathbf{elif}\;t \leq 5.5 \cdot 10^{-99}:\\ \;\;\;\;a\\ \mathbf{elif}\;t \leq 2.1 \cdot 10^{+33}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;t \cdot b\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -1.8e+37)
   (* t b)
   (if (<= t -1.95e-292)
     x
     (if (<= t 3.3e-273)
       z
       (if (<= t 5.5e-99) a (if (<= t 2.1e+33) z (* t b)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1.8e+37) {
		tmp = t * b;
	} else if (t <= -1.95e-292) {
		tmp = x;
	} else if (t <= 3.3e-273) {
		tmp = z;
	} else if (t <= 5.5e-99) {
		tmp = a;
	} else if (t <= 2.1e+33) {
		tmp = z;
	} else {
		tmp = t * b;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (t <= (-1.8d+37)) then
        tmp = t * b
    else if (t <= (-1.95d-292)) then
        tmp = x
    else if (t <= 3.3d-273) then
        tmp = z
    else if (t <= 5.5d-99) then
        tmp = a
    else if (t <= 2.1d+33) then
        tmp = z
    else
        tmp = t * b
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1.8e+37) {
		tmp = t * b;
	} else if (t <= -1.95e-292) {
		tmp = x;
	} else if (t <= 3.3e-273) {
		tmp = z;
	} else if (t <= 5.5e-99) {
		tmp = a;
	} else if (t <= 2.1e+33) {
		tmp = z;
	} else {
		tmp = t * b;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -1.8e+37:
		tmp = t * b
	elif t <= -1.95e-292:
		tmp = x
	elif t <= 3.3e-273:
		tmp = z
	elif t <= 5.5e-99:
		tmp = a
	elif t <= 2.1e+33:
		tmp = z
	else:
		tmp = t * b
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -1.8e+37)
		tmp = Float64(t * b);
	elseif (t <= -1.95e-292)
		tmp = x;
	elseif (t <= 3.3e-273)
		tmp = z;
	elseif (t <= 5.5e-99)
		tmp = a;
	elseif (t <= 2.1e+33)
		tmp = z;
	else
		tmp = Float64(t * b);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -1.8e+37)
		tmp = t * b;
	elseif (t <= -1.95e-292)
		tmp = x;
	elseif (t <= 3.3e-273)
		tmp = z;
	elseif (t <= 5.5e-99)
		tmp = a;
	elseif (t <= 2.1e+33)
		tmp = z;
	else
		tmp = t * b;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -1.8e+37], N[(t * b), $MachinePrecision], If[LessEqual[t, -1.95e-292], x, If[LessEqual[t, 3.3e-273], z, If[LessEqual[t, 5.5e-99], a, If[LessEqual[t, 2.1e+33], z, N[(t * b), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.8 \cdot 10^{+37}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;t \leq -1.95 \cdot 10^{-292}:\\
\;\;\;\;x\\

\mathbf{elif}\;t \leq 3.3 \cdot 10^{-273}:\\
\;\;\;\;z\\

\mathbf{elif}\;t \leq 5.5 \cdot 10^{-99}:\\
\;\;\;\;a\\

\mathbf{elif}\;t \leq 2.1 \cdot 10^{+33}:\\
\;\;\;\;z\\

\mathbf{else}:\\
\;\;\;\;t \cdot b\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t < -1.79999999999999999e37 or 2.1000000000000001e33 < t

    1. Initial program 86.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 45.4%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    3. Taylor expanded in t around inf 36.4%

      \[\leadsto b \cdot \color{blue}{t} \]

    if -1.79999999999999999e37 < t < -1.95e-292

    1. Initial program 96.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in x around inf 24.5%

      \[\leadsto \color{blue}{x} \]

    if -1.95e-292 < t < 3.2999999999999999e-273 or 5.49999999999999991e-99 < t < 2.1000000000000001e33

    1. Initial program 98.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 41.7%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    3. Taylor expanded in y around 0 27.7%

      \[\leadsto \color{blue}{z} \]

    if 3.2999999999999999e-273 < t < 5.49999999999999991e-99

    1. Initial program 93.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around inf 36.7%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
    3. Taylor expanded in t around 0 36.7%

      \[\leadsto \color{blue}{a} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification31.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.8 \cdot 10^{+37}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;t \leq -1.95 \cdot 10^{-292}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 3.3 \cdot 10^{-273}:\\ \;\;\;\;z\\ \mathbf{elif}\;t \leq 5.5 \cdot 10^{-99}:\\ \;\;\;\;a\\ \mathbf{elif}\;t \leq 2.1 \cdot 10^{+33}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;t \cdot b\\ \end{array} \]

Alternative 18: 34.4% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+83}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -5 \cdot 10^{-86}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq -1.35 \cdot 10^{-120}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 9.5 \cdot 10^{-48}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq 10^{+79}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;y \cdot b\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= y -5.2e+83)
   (* y b)
   (if (<= y -5e-86)
     (+ x z)
     (if (<= y -1.35e-120)
       (* t b)
       (if (<= y 9.5e-48) (+ x z) (if (<= y 1e+79) (* t b) (* y b)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (y <= -5.2e+83) {
		tmp = y * b;
	} else if (y <= -5e-86) {
		tmp = x + z;
	} else if (y <= -1.35e-120) {
		tmp = t * b;
	} else if (y <= 9.5e-48) {
		tmp = x + z;
	} else if (y <= 1e+79) {
		tmp = t * b;
	} else {
		tmp = y * b;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (y <= (-5.2d+83)) then
        tmp = y * b
    else if (y <= (-5d-86)) then
        tmp = x + z
    else if (y <= (-1.35d-120)) then
        tmp = t * b
    else if (y <= 9.5d-48) then
        tmp = x + z
    else if (y <= 1d+79) then
        tmp = t * b
    else
        tmp = y * b
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (y <= -5.2e+83) {
		tmp = y * b;
	} else if (y <= -5e-86) {
		tmp = x + z;
	} else if (y <= -1.35e-120) {
		tmp = t * b;
	} else if (y <= 9.5e-48) {
		tmp = x + z;
	} else if (y <= 1e+79) {
		tmp = t * b;
	} else {
		tmp = y * b;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if y <= -5.2e+83:
		tmp = y * b
	elif y <= -5e-86:
		tmp = x + z
	elif y <= -1.35e-120:
		tmp = t * b
	elif y <= 9.5e-48:
		tmp = x + z
	elif y <= 1e+79:
		tmp = t * b
	else:
		tmp = y * b
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (y <= -5.2e+83)
		tmp = Float64(y * b);
	elseif (y <= -5e-86)
		tmp = Float64(x + z);
	elseif (y <= -1.35e-120)
		tmp = Float64(t * b);
	elseif (y <= 9.5e-48)
		tmp = Float64(x + z);
	elseif (y <= 1e+79)
		tmp = Float64(t * b);
	else
		tmp = Float64(y * b);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (y <= -5.2e+83)
		tmp = y * b;
	elseif (y <= -5e-86)
		tmp = x + z;
	elseif (y <= -1.35e-120)
		tmp = t * b;
	elseif (y <= 9.5e-48)
		tmp = x + z;
	elseif (y <= 1e+79)
		tmp = t * b;
	else
		tmp = y * b;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[y, -5.2e+83], N[(y * b), $MachinePrecision], If[LessEqual[y, -5e-86], N[(x + z), $MachinePrecision], If[LessEqual[y, -1.35e-120], N[(t * b), $MachinePrecision], If[LessEqual[y, 9.5e-48], N[(x + z), $MachinePrecision], If[LessEqual[y, 1e+79], N[(t * b), $MachinePrecision], N[(y * b), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.2 \cdot 10^{+83}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;y \leq -5 \cdot 10^{-86}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;y \leq -1.35 \cdot 10^{-120}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;y \leq 9.5 \cdot 10^{-48}:\\
\;\;\;\;x + z\\

\mathbf{elif}\;y \leq 10^{+79}:\\
\;\;\;\;t \cdot b\\

\mathbf{else}:\\
\;\;\;\;y \cdot b\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -5.2000000000000002e83 or 9.99999999999999967e78 < y

    1. Initial program 81.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 70.0%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]
    3. Taylor expanded in b around inf 40.1%

      \[\leadsto \color{blue}{b \cdot y} \]

    if -5.2000000000000002e83 < y < -4.9999999999999999e-86 or -1.3499999999999999e-120 < y < 9.50000000000000036e-48

    1. Initial program 97.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 71.9%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 68.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+68.3%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg68.3%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval68.3%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-168.3%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified68.3%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in b around 0 44.1%

      \[\leadsto \color{blue}{x + z} \]

    if -4.9999999999999999e-86 < y < -1.3499999999999999e-120 or 9.50000000000000036e-48 < y < 9.99999999999999967e78

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 50.3%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    3. Taylor expanded in t around inf 41.7%

      \[\leadsto b \cdot \color{blue}{t} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification42.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+83}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -5 \cdot 10^{-86}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq -1.35 \cdot 10^{-120}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 9.5 \cdot 10^{-48}:\\ \;\;\;\;x + z\\ \mathbf{elif}\;y \leq 10^{+79}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;y \cdot b\\ \end{array} \]

Alternative 19: 26.4% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.7 \cdot 10^{+83}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -1.7 \cdot 10^{-198}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 1.7 \cdot 10^{-52}:\\ \;\;\;\;z\\ \mathbf{elif}\;y \leq 1.05 \cdot 10^{+79}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;y \cdot b\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= y -1.7e+83)
   (* y b)
   (if (<= y -1.7e-198)
     (* t b)
     (if (<= y 1.7e-52) z (if (<= y 1.05e+79) (* t b) (* y b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (y <= -1.7e+83) {
		tmp = y * b;
	} else if (y <= -1.7e-198) {
		tmp = t * b;
	} else if (y <= 1.7e-52) {
		tmp = z;
	} else if (y <= 1.05e+79) {
		tmp = t * b;
	} else {
		tmp = y * b;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (y <= (-1.7d+83)) then
        tmp = y * b
    else if (y <= (-1.7d-198)) then
        tmp = t * b
    else if (y <= 1.7d-52) then
        tmp = z
    else if (y <= 1.05d+79) then
        tmp = t * b
    else
        tmp = y * b
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (y <= -1.7e+83) {
		tmp = y * b;
	} else if (y <= -1.7e-198) {
		tmp = t * b;
	} else if (y <= 1.7e-52) {
		tmp = z;
	} else if (y <= 1.05e+79) {
		tmp = t * b;
	} else {
		tmp = y * b;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if y <= -1.7e+83:
		tmp = y * b
	elif y <= -1.7e-198:
		tmp = t * b
	elif y <= 1.7e-52:
		tmp = z
	elif y <= 1.05e+79:
		tmp = t * b
	else:
		tmp = y * b
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (y <= -1.7e+83)
		tmp = Float64(y * b);
	elseif (y <= -1.7e-198)
		tmp = Float64(t * b);
	elseif (y <= 1.7e-52)
		tmp = z;
	elseif (y <= 1.05e+79)
		tmp = Float64(t * b);
	else
		tmp = Float64(y * b);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (y <= -1.7e+83)
		tmp = y * b;
	elseif (y <= -1.7e-198)
		tmp = t * b;
	elseif (y <= 1.7e-52)
		tmp = z;
	elseif (y <= 1.05e+79)
		tmp = t * b;
	else
		tmp = y * b;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[y, -1.7e+83], N[(y * b), $MachinePrecision], If[LessEqual[y, -1.7e-198], N[(t * b), $MachinePrecision], If[LessEqual[y, 1.7e-52], z, If[LessEqual[y, 1.05e+79], N[(t * b), $MachinePrecision], N[(y * b), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.7 \cdot 10^{+83}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;y \leq -1.7 \cdot 10^{-198}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;y \leq 1.7 \cdot 10^{-52}:\\
\;\;\;\;z\\

\mathbf{elif}\;y \leq 1.05 \cdot 10^{+79}:\\
\;\;\;\;t \cdot b\\

\mathbf{else}:\\
\;\;\;\;y \cdot b\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.6999999999999999e83 or 1.05000000000000004e79 < y

    1. Initial program 81.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 70.0%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]
    3. Taylor expanded in b around inf 40.1%

      \[\leadsto \color{blue}{b \cdot y} \]

    if -1.6999999999999999e83 < y < -1.6999999999999999e-198 or 1.70000000000000009e-52 < y < 1.05000000000000004e79

    1. Initial program 97.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 38.6%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    3. Taylor expanded in t around inf 31.1%

      \[\leadsto b \cdot \color{blue}{t} \]

    if -1.6999999999999999e-198 < y < 1.70000000000000009e-52

    1. Initial program 98.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 35.5%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    3. Taylor expanded in y around 0 35.5%

      \[\leadsto \color{blue}{z} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification35.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.7 \cdot 10^{+83}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -1.7 \cdot 10^{-198}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 1.7 \cdot 10^{-52}:\\ \;\;\;\;z\\ \mathbf{elif}\;y \leq 1.05 \cdot 10^{+79}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;y \cdot b\\ \end{array} \]

Alternative 20: 34.4% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1 \cdot 10^{+37}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;t \leq 8.5 \cdot 10^{-48}:\\ \;\;\;\;x + a\\ \mathbf{elif}\;t \leq 2.2 \cdot 10^{+33}:\\ \;\;\;\;z\\ \mathbf{elif}\;t \leq 2.8 \cdot 10^{+52}:\\ \;\;\;\;y \cdot b\\ \mathbf{else}:\\ \;\;\;\;t \cdot b\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -1e+37)
   (* t b)
   (if (<= t 8.5e-48)
     (+ x a)
     (if (<= t 2.2e+33) z (if (<= t 2.8e+52) (* y b) (* t b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1e+37) {
		tmp = t * b;
	} else if (t <= 8.5e-48) {
		tmp = x + a;
	} else if (t <= 2.2e+33) {
		tmp = z;
	} else if (t <= 2.8e+52) {
		tmp = y * b;
	} else {
		tmp = t * b;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (t <= (-1d+37)) then
        tmp = t * b
    else if (t <= 8.5d-48) then
        tmp = x + a
    else if (t <= 2.2d+33) then
        tmp = z
    else if (t <= 2.8d+52) then
        tmp = y * b
    else
        tmp = t * b
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1e+37) {
		tmp = t * b;
	} else if (t <= 8.5e-48) {
		tmp = x + a;
	} else if (t <= 2.2e+33) {
		tmp = z;
	} else if (t <= 2.8e+52) {
		tmp = y * b;
	} else {
		tmp = t * b;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -1e+37:
		tmp = t * b
	elif t <= 8.5e-48:
		tmp = x + a
	elif t <= 2.2e+33:
		tmp = z
	elif t <= 2.8e+52:
		tmp = y * b
	else:
		tmp = t * b
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -1e+37)
		tmp = Float64(t * b);
	elseif (t <= 8.5e-48)
		tmp = Float64(x + a);
	elseif (t <= 2.2e+33)
		tmp = z;
	elseif (t <= 2.8e+52)
		tmp = Float64(y * b);
	else
		tmp = Float64(t * b);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -1e+37)
		tmp = t * b;
	elseif (t <= 8.5e-48)
		tmp = x + a;
	elseif (t <= 2.2e+33)
		tmp = z;
	elseif (t <= 2.8e+52)
		tmp = y * b;
	else
		tmp = t * b;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -1e+37], N[(t * b), $MachinePrecision], If[LessEqual[t, 8.5e-48], N[(x + a), $MachinePrecision], If[LessEqual[t, 2.2e+33], z, If[LessEqual[t, 2.8e+52], N[(y * b), $MachinePrecision], N[(t * b), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1 \cdot 10^{+37}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;t \leq 8.5 \cdot 10^{-48}:\\
\;\;\;\;x + a\\

\mathbf{elif}\;t \leq 2.2 \cdot 10^{+33}:\\
\;\;\;\;z\\

\mathbf{elif}\;t \leq 2.8 \cdot 10^{+52}:\\
\;\;\;\;y \cdot b\\

\mathbf{else}:\\
\;\;\;\;t \cdot b\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if t < -9.99999999999999954e36 or 2.8e52 < t

    1. Initial program 86.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around inf 44.3%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    3. Taylor expanded in t around inf 36.7%

      \[\leadsto b \cdot \color{blue}{t} \]

    if -9.99999999999999954e36 < t < 8.5000000000000004e-48

    1. Initial program 95.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 73.5%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in a around inf 41.0%

      \[\leadsto x - \color{blue}{a \cdot \left(t - 1\right)} \]
    4. Taylor expanded in t around 0 39.4%

      \[\leadsto \color{blue}{x - -1 \cdot a} \]
    5. Step-by-step derivation
      1. cancel-sign-sub-inv39.4%

        \[\leadsto \color{blue}{x + \left(--1\right) \cdot a} \]
      2. metadata-eval39.4%

        \[\leadsto x + \color{blue}{1} \cdot a \]
      3. *-lft-identity39.4%

        \[\leadsto x + \color{blue}{a} \]
    6. Simplified39.4%

      \[\leadsto \color{blue}{x + a} \]

    if 8.5000000000000004e-48 < t < 2.19999999999999994e33

    1. Initial program 99.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 42.4%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    3. Taylor expanded in y around 0 28.9%

      \[\leadsto \color{blue}{z} \]

    if 2.19999999999999994e33 < t < 2.8e52

    1. Initial program 75.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in y around inf 93.1%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]
    3. Taylor expanded in b around inf 68.1%

      \[\leadsto \color{blue}{b \cdot y} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification37.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1 \cdot 10^{+37}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;t \leq 8.5 \cdot 10^{-48}:\\ \;\;\;\;x + a\\ \mathbf{elif}\;t \leq 2.2 \cdot 10^{+33}:\\ \;\;\;\;z\\ \mathbf{elif}\;t \leq 2.8 \cdot 10^{+52}:\\ \;\;\;\;y \cdot b\\ \mathbf{else}:\\ \;\;\;\;t \cdot b\\ \end{array} \]

Alternative 21: 50.4% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \left(b - a\right)\\ \mathbf{if}\;t \leq -62000000:\\ \;\;\;\;t_1\\ \mathbf{elif}\;t \leq 8.5 \cdot 10^{-83}:\\ \;\;\;\;x + a\\ \mathbf{elif}\;t \leq 4 \cdot 10^{+25}:\\ \;\;\;\;x + z\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* t (- b a))))
   (if (<= t -62000000.0)
     t_1
     (if (<= t 8.5e-83) (+ x a) (if (<= t 4e+25) (+ x z) t_1)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = t * (b - a);
	double tmp;
	if (t <= -62000000.0) {
		tmp = t_1;
	} else if (t <= 8.5e-83) {
		tmp = x + a;
	} else if (t <= 4e+25) {
		tmp = x + z;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: t_1
    real(8) :: tmp
    t_1 = t * (b - a)
    if (t <= (-62000000.0d0)) then
        tmp = t_1
    else if (t <= 8.5d-83) then
        tmp = x + a
    else if (t <= 4d+25) then
        tmp = x + z
    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 t_1 = t * (b - a);
	double tmp;
	if (t <= -62000000.0) {
		tmp = t_1;
	} else if (t <= 8.5e-83) {
		tmp = x + a;
	} else if (t <= 4e+25) {
		tmp = x + z;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = t * (b - a)
	tmp = 0
	if t <= -62000000.0:
		tmp = t_1
	elif t <= 8.5e-83:
		tmp = x + a
	elif t <= 4e+25:
		tmp = x + z
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(t * Float64(b - a))
	tmp = 0.0
	if (t <= -62000000.0)
		tmp = t_1;
	elseif (t <= 8.5e-83)
		tmp = Float64(x + a);
	elseif (t <= 4e+25)
		tmp = Float64(x + z);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = t * (b - a);
	tmp = 0.0;
	if (t <= -62000000.0)
		tmp = t_1;
	elseif (t <= 8.5e-83)
		tmp = x + a;
	elseif (t <= 4e+25)
		tmp = x + z;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -62000000.0], t$95$1, If[LessEqual[t, 8.5e-83], N[(x + a), $MachinePrecision], If[LessEqual[t, 4e+25], N[(x + z), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \left(b - a\right)\\
\mathbf{if}\;t \leq -62000000:\\
\;\;\;\;t_1\\

\mathbf{elif}\;t \leq 8.5 \cdot 10^{-83}:\\
\;\;\;\;x + a\\

\mathbf{elif}\;t \leq 4 \cdot 10^{+25}:\\
\;\;\;\;x + z\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -6.2e7 or 4.00000000000000036e25 < t

    1. Initial program 87.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in t around inf 65.7%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]

    if -6.2e7 < t < 8.49999999999999938e-83

    1. Initial program 94.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in b around 0 73.1%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    3. Taylor expanded in a around inf 41.0%

      \[\leadsto x - \color{blue}{a \cdot \left(t - 1\right)} \]
    4. Taylor expanded in t around 0 41.0%

      \[\leadsto \color{blue}{x - -1 \cdot a} \]
    5. Step-by-step derivation
      1. cancel-sign-sub-inv41.0%

        \[\leadsto \color{blue}{x + \left(--1\right) \cdot a} \]
      2. metadata-eval41.0%

        \[\leadsto x + \color{blue}{1} \cdot a \]
      3. *-lft-identity41.0%

        \[\leadsto x + \color{blue}{a} \]
    6. Simplified41.0%

      \[\leadsto \color{blue}{x + a} \]

    if 8.49999999999999938e-83 < t < 4.00000000000000036e25

    1. Initial program 100.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around 0 94.4%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    3. Taylor expanded in y around 0 65.2%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    4. Step-by-step derivation
      1. associate--l+65.2%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - -1 \cdot z\right)} \]
      2. sub-neg65.2%

        \[\leadsto x + \left(b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - -1 \cdot z\right) \]
      3. metadata-eval65.2%

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - -1 \cdot z\right) \]
      4. neg-mul-165.2%

        \[\leadsto x + \left(b \cdot \left(t + -2\right) - \color{blue}{\left(-z\right)}\right) \]
    5. Simplified65.2%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
    6. Taylor expanded in b around 0 43.1%

      \[\leadsto \color{blue}{x + z} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification53.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -62000000:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;t \leq 8.5 \cdot 10^{-83}:\\ \;\;\;\;x + a\\ \mathbf{elif}\;t \leq 4 \cdot 10^{+25}:\\ \;\;\;\;x + z\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \end{array} \]

Alternative 22: 21.6% accurate, 2.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.3 \cdot 10^{+74}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 5.6 \cdot 10^{-179}:\\ \;\;\;\;z\\ \mathbf{elif}\;x \leq 3.7 \cdot 10^{+120}:\\ \;\;\;\;a\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -2.3e+74) x (if (<= x 5.6e-179) z (if (<= x 3.7e+120) a x))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -2.3e+74) {
		tmp = x;
	} else if (x <= 5.6e-179) {
		tmp = z;
	} else if (x <= 3.7e+120) {
		tmp = a;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (x <= (-2.3d+74)) then
        tmp = x
    else if (x <= 5.6d-179) then
        tmp = z
    else if (x <= 3.7d+120) then
        tmp = a
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -2.3e+74) {
		tmp = x;
	} else if (x <= 5.6e-179) {
		tmp = z;
	} else if (x <= 3.7e+120) {
		tmp = a;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -2.3e+74:
		tmp = x
	elif x <= 5.6e-179:
		tmp = z
	elif x <= 3.7e+120:
		tmp = a
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -2.3e+74)
		tmp = x;
	elseif (x <= 5.6e-179)
		tmp = z;
	elseif (x <= 3.7e+120)
		tmp = a;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -2.3e+74)
		tmp = x;
	elseif (x <= 5.6e-179)
		tmp = z;
	elseif (x <= 3.7e+120)
		tmp = a;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -2.3e+74], x, If[LessEqual[x, 5.6e-179], z, If[LessEqual[x, 3.7e+120], a, x]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.3 \cdot 10^{+74}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 5.6 \cdot 10^{-179}:\\
\;\;\;\;z\\

\mathbf{elif}\;x \leq 3.7 \cdot 10^{+120}:\\
\;\;\;\;a\\

\mathbf{else}:\\
\;\;\;\;x\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -2.2999999999999999e74 or 3.70000000000000024e120 < x

    1. Initial program 92.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in x around inf 32.2%

      \[\leadsto \color{blue}{x} \]

    if -2.2999999999999999e74 < x < 5.6000000000000001e-179

    1. Initial program 91.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in z around inf 41.5%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    3. Taylor expanded in y around 0 22.4%

      \[\leadsto \color{blue}{z} \]

    if 5.6000000000000001e-179 < x < 3.70000000000000024e120

    1. Initial program 90.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around inf 37.4%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
    3. Taylor expanded in t around 0 20.8%

      \[\leadsto \color{blue}{a} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification25.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2.3 \cdot 10^{+74}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 5.6 \cdot 10^{-179}:\\ \;\;\;\;z\\ \mathbf{elif}\;x \leq 3.7 \cdot 10^{+120}:\\ \;\;\;\;a\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]

Alternative 23: 20.4% accurate, 4.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -1.46 \cdot 10^{+166}:\\ \;\;\;\;a\\ \mathbf{elif}\;a \leq 95000:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;a\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= a -1.46e+166) a (if (<= a 95000.0) x a)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (a <= -1.46e+166) {
		tmp = a;
	} else if (a <= 95000.0) {
		tmp = x;
	} else {
		tmp = a;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    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) :: tmp
    if (a <= (-1.46d+166)) then
        tmp = a
    else if (a <= 95000.0d0) then
        tmp = x
    else
        tmp = a
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (a <= -1.46e+166) {
		tmp = a;
	} else if (a <= 95000.0) {
		tmp = x;
	} else {
		tmp = a;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if a <= -1.46e+166:
		tmp = a
	elif a <= 95000.0:
		tmp = x
	else:
		tmp = a
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (a <= -1.46e+166)
		tmp = a;
	elseif (a <= 95000.0)
		tmp = x;
	else
		tmp = a;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (a <= -1.46e+166)
		tmp = a;
	elseif (a <= 95000.0)
		tmp = x;
	else
		tmp = a;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[a, -1.46e+166], a, If[LessEqual[a, 95000.0], x, a]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -1.46 \cdot 10^{+166}:\\
\;\;\;\;a\\

\mathbf{elif}\;a \leq 95000:\\
\;\;\;\;x\\

\mathbf{else}:\\
\;\;\;\;a\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -1.4600000000000001e166 or 95000 < a

    1. Initial program 85.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in a around inf 59.7%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
    3. Taylor expanded in t around 0 25.2%

      \[\leadsto \color{blue}{a} \]

    if -1.4600000000000001e166 < a < 95000

    1. Initial program 95.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Taylor expanded in x around inf 17.3%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification20.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1.46 \cdot 10^{+166}:\\ \;\;\;\;a\\ \mathbf{elif}\;a \leq 95000:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;a\\ \end{array} \]

Alternative 24: 10.3% accurate, 21.0× speedup?

\[\begin{array}{l} \\ a \end{array} \]
(FPCore (x y z t a b) :precision binary64 a)
double code(double x, double y, double z, double t, double a, double b) {
	return a;
}
real(8) function code(x, y, z, t, a, b)
    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
    code = a
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return a;
}
def code(x, y, z, t, a, b):
	return a
function code(x, y, z, t, a, b)
	return a
end
function tmp = code(x, y, z, t, a, b)
	tmp = a;
end
code[x_, y_, z_, t_, a_, b_] := a
\begin{array}{l}

\\
a
\end{array}
Derivation
  1. Initial program 91.8%

    \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
  2. Taylor expanded in a around inf 27.3%

    \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
  3. Taylor expanded in t around 0 11.3%

    \[\leadsto \color{blue}{a} \]
  4. Final simplification11.3%

    \[\leadsto a \]

Reproduce

?
herbie shell --seed 2023297 
(FPCore (x y z t a b)
  :name "Statistics.Distribution.Beta:$centropy from math-functions-0.1.5.2"
  :precision binary64
  (+ (- (- x (* (- y 1.0) z)) (* (- t 1.0) a)) (* (- (+ y t) 2.0) b)))