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

Percentage Accurate: 95.2% → 98.0%
Time: 19.3s
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: 98.0% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(\left(x + z \cdot \left(1 - y\right)\right) + a \cdot \left(1 - t\right)\right) + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;t\_1 \leq \infty:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1
         (+ (+ (+ x (* z (- 1.0 y))) (* 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 * (1.0 - y))) + (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 * (1.0 - y))) + (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 * (1.0 - y))) + (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(1.0 - y))) + 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 * (1.0 - y))) + (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[(1.0 - y), $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(1 - y\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%

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

    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. Add Preprocessing
    3. Taylor expanded in y around inf 66.7%

      \[\leadsto \color{blue}{y \cdot \left(b - z\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification98.8%

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

Alternative 2: 97.3% 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 96.5%

    \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
  2. Step-by-step derivation
    1. +-commutative96.5%

      \[\leadsto \color{blue}{\left(\left(y + t\right) - 2\right) \cdot b + \left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right)} \]
    2. fma-define97.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\left(y + t\right) - 2, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right)} \]
    3. associate--l+97.6%

      \[\leadsto \mathsf{fma}\left(\color{blue}{y + \left(t - 2\right)}, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    4. sub-neg97.6%

      \[\leadsto \mathsf{fma}\left(y + \color{blue}{\left(t + \left(-2\right)\right)}, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    5. metadata-eval97.6%

      \[\leadsto \mathsf{fma}\left(y + \left(t + \color{blue}{-2}\right), b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    6. sub-neg97.6%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, \color{blue}{\left(x - \left(y - 1\right) \cdot z\right) + \left(-\left(t - 1\right) \cdot a\right)}\right) \]
    7. associate-+l-97.6%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, \color{blue}{x - \left(\left(y - 1\right) \cdot z - \left(-\left(t - 1\right) \cdot a\right)\right)}\right) \]
    8. fma-neg98.0%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \color{blue}{\mathsf{fma}\left(y - 1, z, -\left(-\left(t - 1\right) \cdot a\right)\right)}\right) \]
    9. sub-neg98.0%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(\color{blue}{y + \left(-1\right)}, z, -\left(-\left(t - 1\right) \cdot a\right)\right)\right) \]
    10. metadata-eval98.0%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + \color{blue}{-1}, z, -\left(-\left(t - 1\right) \cdot a\right)\right)\right) \]
    11. remove-double-neg98.0%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \color{blue}{\left(t - 1\right) \cdot a}\right)\right) \]
    12. sub-neg98.0%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot a\right)\right) \]
    13. metadata-eval98.0%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \left(t + \color{blue}{-1}\right) \cdot a\right)\right) \]
  3. Simplified98.0%

    \[\leadsto \color{blue}{\mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \left(t + -1\right) \cdot a\right)\right)} \]
  4. Add Preprocessing
  5. Final simplification98.0%

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

Alternative 3: 59.2% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ t_2 := x + z \cdot \left(1 - y\right)\\ t_3 := b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq -6.5 \cdot 10^{+77}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -1.16 \cdot 10^{+51}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq -9.5 \cdot 10^{-56}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;b \leq -6.8 \cdot 10^{-72}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;b \leq 1.22 \cdot 10^{-147}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq 10^{-82}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 4.8 \cdot 10^{+54}:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_3\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t)))
        (t_2 (+ x (* z (- 1.0 y))))
        (t_3 (* b (- (+ y t) 2.0))))
   (if (<= b -1e+107)
     t_3
     (if (<= b -6.5e+77)
       t_1
       (if (<= b -1.16e+51)
         t_3
         (if (<= b -9.5e-56)
           (* y (- b z))
           (if (<= b -6.8e-72)
             (* t (- b a))
             (if (<= b 1.22e-147)
               t_2
               (if (<= b 1e-82) t_1 (if (<= b 4.8e+54) 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 = x + (z * (1.0 - y));
	double t_3 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -1e+107) {
		tmp = t_3;
	} else if (b <= -6.5e+77) {
		tmp = t_1;
	} else if (b <= -1.16e+51) {
		tmp = t_3;
	} else if (b <= -9.5e-56) {
		tmp = y * (b - z);
	} else if (b <= -6.8e-72) {
		tmp = t * (b - a);
	} else if (b <= 1.22e-147) {
		tmp = t_2;
	} else if (b <= 1e-82) {
		tmp = t_1;
	} else if (b <= 4.8e+54) {
		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 = x + (z * (1.0d0 - y))
    t_3 = b * ((y + t) - 2.0d0)
    if (b <= (-1d+107)) then
        tmp = t_3
    else if (b <= (-6.5d+77)) then
        tmp = t_1
    else if (b <= (-1.16d+51)) then
        tmp = t_3
    else if (b <= (-9.5d-56)) then
        tmp = y * (b - z)
    else if (b <= (-6.8d-72)) then
        tmp = t * (b - a)
    else if (b <= 1.22d-147) then
        tmp = t_2
    else if (b <= 1d-82) then
        tmp = t_1
    else if (b <= 4.8d+54) 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 = x + (z * (1.0 - y));
	double t_3 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -1e+107) {
		tmp = t_3;
	} else if (b <= -6.5e+77) {
		tmp = t_1;
	} else if (b <= -1.16e+51) {
		tmp = t_3;
	} else if (b <= -9.5e-56) {
		tmp = y * (b - z);
	} else if (b <= -6.8e-72) {
		tmp = t * (b - a);
	} else if (b <= 1.22e-147) {
		tmp = t_2;
	} else if (b <= 1e-82) {
		tmp = t_1;
	} else if (b <= 4.8e+54) {
		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 = x + (z * (1.0 - y))
	t_3 = b * ((y + t) - 2.0)
	tmp = 0
	if b <= -1e+107:
		tmp = t_3
	elif b <= -6.5e+77:
		tmp = t_1
	elif b <= -1.16e+51:
		tmp = t_3
	elif b <= -9.5e-56:
		tmp = y * (b - z)
	elif b <= -6.8e-72:
		tmp = t * (b - a)
	elif b <= 1.22e-147:
		tmp = t_2
	elif b <= 1e-82:
		tmp = t_1
	elif b <= 4.8e+54:
		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(x + Float64(z * Float64(1.0 - y)))
	t_3 = Float64(b * Float64(Float64(y + t) - 2.0))
	tmp = 0.0
	if (b <= -1e+107)
		tmp = t_3;
	elseif (b <= -6.5e+77)
		tmp = t_1;
	elseif (b <= -1.16e+51)
		tmp = t_3;
	elseif (b <= -9.5e-56)
		tmp = Float64(y * Float64(b - z));
	elseif (b <= -6.8e-72)
		tmp = Float64(t * Float64(b - a));
	elseif (b <= 1.22e-147)
		tmp = t_2;
	elseif (b <= 1e-82)
		tmp = t_1;
	elseif (b <= 4.8e+54)
		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 = x + (z * (1.0 - y));
	t_3 = b * ((y + t) - 2.0);
	tmp = 0.0;
	if (b <= -1e+107)
		tmp = t_3;
	elseif (b <= -6.5e+77)
		tmp = t_1;
	elseif (b <= -1.16e+51)
		tmp = t_3;
	elseif (b <= -9.5e-56)
		tmp = y * (b - z);
	elseif (b <= -6.8e-72)
		tmp = t * (b - a);
	elseif (b <= 1.22e-147)
		tmp = t_2;
	elseif (b <= 1e-82)
		tmp = t_1;
	elseif (b <= 4.8e+54)
		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[(x + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1e+107], t$95$3, If[LessEqual[b, -6.5e+77], t$95$1, If[LessEqual[b, -1.16e+51], t$95$3, If[LessEqual[b, -9.5e-56], N[(y * N[(b - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, -6.8e-72], N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 1.22e-147], t$95$2, If[LessEqual[b, 1e-82], t$95$1, If[LessEqual[b, 4.8e+54], t$95$2, t$95$3]]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
t_2 := x + z \cdot \left(1 - y\right)\\
t_3 := b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq -6.5 \cdot 10^{+77}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -1.16 \cdot 10^{+51}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq -9.5 \cdot 10^{-56}:\\
\;\;\;\;y \cdot \left(b - z\right)\\

\mathbf{elif}\;b \leq -6.8 \cdot 10^{-72}:\\
\;\;\;\;t \cdot \left(b - a\right)\\

\mathbf{elif}\;b \leq 1.22 \cdot 10^{-147}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq 10^{-82}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq 4.8 \cdot 10^{+54}:\\
\;\;\;\;t\_2\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if b < -9.9999999999999997e106 or -6.5e77 < b < -1.16e51 or 4.79999999999999997e54 < b

    1. Initial program 93.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 81.2%

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

    if -9.9999999999999997e106 < b < -6.5e77 or 1.21999999999999995e-147 < b < 1e-82

    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. Add Preprocessing
    3. Taylor expanded in a around inf 76.1%

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

    if -1.16e51 < b < -9.4999999999999991e-56

    1. Initial program 94.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 64.0%

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

    if -9.4999999999999991e-56 < b < -6.7999999999999997e-72

    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. Add Preprocessing
    3. Taylor expanded in t around inf 55.1%

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

    if -6.7999999999999997e-72 < b < 1.21999999999999995e-147 or 1e-82 < b < 4.79999999999999997e54

    1. Initial program 99.0%

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

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in b around 0 62.8%

      \[\leadsto \color{blue}{x - z \cdot \left(y - 1\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification71.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -6.5 \cdot 10^{+77}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -1.16 \cdot 10^{+51}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -9.5 \cdot 10^{-56}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;b \leq -6.8 \cdot 10^{-72}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;b \leq 1.22 \cdot 10^{-147}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 10^{-82}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 4.8 \cdot 10^{+54}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 59.3% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ t_2 := x + z \cdot \left(1 - y\right)\\ t_3 := b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq -6.5 \cdot 10^{+77}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -4.6 \cdot 10^{+50}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq -7.5 \cdot 10^{-51}:\\ \;\;\;\;y \cdot b - y \cdot z\\ \mathbf{elif}\;b \leq -6.8 \cdot 10^{-72}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;b \leq 4.2 \cdot 10^{-146}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq 8 \cdot 10^{-85}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 6.4 \cdot 10^{+59}:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_3\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t)))
        (t_2 (+ x (* z (- 1.0 y))))
        (t_3 (* b (- (+ y t) 2.0))))
   (if (<= b -1e+107)
     t_3
     (if (<= b -6.5e+77)
       t_1
       (if (<= b -4.6e+50)
         t_3
         (if (<= b -7.5e-51)
           (- (* y b) (* y z))
           (if (<= b -6.8e-72)
             (* t (- b a))
             (if (<= b 4.2e-146)
               t_2
               (if (<= b 8e-85) t_1 (if (<= b 6.4e+59) 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 = x + (z * (1.0 - y));
	double t_3 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -1e+107) {
		tmp = t_3;
	} else if (b <= -6.5e+77) {
		tmp = t_1;
	} else if (b <= -4.6e+50) {
		tmp = t_3;
	} else if (b <= -7.5e-51) {
		tmp = (y * b) - (y * z);
	} else if (b <= -6.8e-72) {
		tmp = t * (b - a);
	} else if (b <= 4.2e-146) {
		tmp = t_2;
	} else if (b <= 8e-85) {
		tmp = t_1;
	} else if (b <= 6.4e+59) {
		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 = x + (z * (1.0d0 - y))
    t_3 = b * ((y + t) - 2.0d0)
    if (b <= (-1d+107)) then
        tmp = t_3
    else if (b <= (-6.5d+77)) then
        tmp = t_1
    else if (b <= (-4.6d+50)) then
        tmp = t_3
    else if (b <= (-7.5d-51)) then
        tmp = (y * b) - (y * z)
    else if (b <= (-6.8d-72)) then
        tmp = t * (b - a)
    else if (b <= 4.2d-146) then
        tmp = t_2
    else if (b <= 8d-85) then
        tmp = t_1
    else if (b <= 6.4d+59) 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 = x + (z * (1.0 - y));
	double t_3 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -1e+107) {
		tmp = t_3;
	} else if (b <= -6.5e+77) {
		tmp = t_1;
	} else if (b <= -4.6e+50) {
		tmp = t_3;
	} else if (b <= -7.5e-51) {
		tmp = (y * b) - (y * z);
	} else if (b <= -6.8e-72) {
		tmp = t * (b - a);
	} else if (b <= 4.2e-146) {
		tmp = t_2;
	} else if (b <= 8e-85) {
		tmp = t_1;
	} else if (b <= 6.4e+59) {
		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 = x + (z * (1.0 - y))
	t_3 = b * ((y + t) - 2.0)
	tmp = 0
	if b <= -1e+107:
		tmp = t_3
	elif b <= -6.5e+77:
		tmp = t_1
	elif b <= -4.6e+50:
		tmp = t_3
	elif b <= -7.5e-51:
		tmp = (y * b) - (y * z)
	elif b <= -6.8e-72:
		tmp = t * (b - a)
	elif b <= 4.2e-146:
		tmp = t_2
	elif b <= 8e-85:
		tmp = t_1
	elif b <= 6.4e+59:
		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(x + Float64(z * Float64(1.0 - y)))
	t_3 = Float64(b * Float64(Float64(y + t) - 2.0))
	tmp = 0.0
	if (b <= -1e+107)
		tmp = t_3;
	elseif (b <= -6.5e+77)
		tmp = t_1;
	elseif (b <= -4.6e+50)
		tmp = t_3;
	elseif (b <= -7.5e-51)
		tmp = Float64(Float64(y * b) - Float64(y * z));
	elseif (b <= -6.8e-72)
		tmp = Float64(t * Float64(b - a));
	elseif (b <= 4.2e-146)
		tmp = t_2;
	elseif (b <= 8e-85)
		tmp = t_1;
	elseif (b <= 6.4e+59)
		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 = x + (z * (1.0 - y));
	t_3 = b * ((y + t) - 2.0);
	tmp = 0.0;
	if (b <= -1e+107)
		tmp = t_3;
	elseif (b <= -6.5e+77)
		tmp = t_1;
	elseif (b <= -4.6e+50)
		tmp = t_3;
	elseif (b <= -7.5e-51)
		tmp = (y * b) - (y * z);
	elseif (b <= -6.8e-72)
		tmp = t * (b - a);
	elseif (b <= 4.2e-146)
		tmp = t_2;
	elseif (b <= 8e-85)
		tmp = t_1;
	elseif (b <= 6.4e+59)
		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[(x + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1e+107], t$95$3, If[LessEqual[b, -6.5e+77], t$95$1, If[LessEqual[b, -4.6e+50], t$95$3, If[LessEqual[b, -7.5e-51], N[(N[(y * b), $MachinePrecision] - N[(y * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, -6.8e-72], N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 4.2e-146], t$95$2, If[LessEqual[b, 8e-85], t$95$1, If[LessEqual[b, 6.4e+59], t$95$2, t$95$3]]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
t_2 := x + z \cdot \left(1 - y\right)\\
t_3 := b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq -6.5 \cdot 10^{+77}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -4.6 \cdot 10^{+50}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq -7.5 \cdot 10^{-51}:\\
\;\;\;\;y \cdot b - y \cdot z\\

\mathbf{elif}\;b \leq -6.8 \cdot 10^{-72}:\\
\;\;\;\;t \cdot \left(b - a\right)\\

\mathbf{elif}\;b \leq 4.2 \cdot 10^{-146}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq 8 \cdot 10^{-85}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq 6.4 \cdot 10^{+59}:\\
\;\;\;\;t\_2\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if b < -9.9999999999999997e106 or -6.5e77 < b < -4.59999999999999994e50 or 6.39999999999999964e59 < b

    1. Initial program 93.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 81.2%

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

    if -9.9999999999999997e106 < b < -6.5e77 or 4.1999999999999998e-146 < b < 7.9999999999999998e-85

    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. Add Preprocessing
    3. Taylor expanded in a around inf 76.1%

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

    if -4.59999999999999994e50 < b < -7.49999999999999976e-51

    1. Initial program 94.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 66.7%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg66.7%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in66.7%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified66.7%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in y around inf 64.1%

      \[\leadsto y \cdot \left(-z\right) + \color{blue}{b \cdot y} \]
    7. Step-by-step derivation
      1. +-commutative64.1%

        \[\leadsto \color{blue}{b \cdot y + y \cdot \left(-z\right)} \]
      2. distribute-rgt-neg-out64.1%

        \[\leadsto b \cdot y + \color{blue}{\left(-y \cdot z\right)} \]
      3. unsub-neg64.1%

        \[\leadsto \color{blue}{b \cdot y - y \cdot z} \]
      4. *-commutative64.1%

        \[\leadsto \color{blue}{y \cdot b} - y \cdot z \]
    8. Applied egg-rr64.1%

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

    if -7.49999999999999976e-51 < b < -6.7999999999999997e-72

    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. Add Preprocessing
    3. Taylor expanded in t around inf 55.1%

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

    if -6.7999999999999997e-72 < b < 4.1999999999999998e-146 or 7.9999999999999998e-85 < b < 6.39999999999999964e59

    1. Initial program 99.0%

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

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in b around 0 62.8%

      \[\leadsto \color{blue}{x - z \cdot \left(y - 1\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification71.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -6.5 \cdot 10^{+77}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -4.6 \cdot 10^{+50}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -7.5 \cdot 10^{-51}:\\ \;\;\;\;y \cdot b - y \cdot z\\ \mathbf{elif}\;b \leq -6.8 \cdot 10^{-72}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;b \leq 4.2 \cdot 10^{-146}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 8 \cdot 10^{-85}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 6.4 \cdot 10^{+59}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 26.0% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.6 \cdot 10^{+108}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;t \leq -1.1 \cdot 10^{-227}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;t \leq 2.3 \cdot 10^{-280}:\\ \;\;\;\;-2 \cdot b\\ \mathbf{elif}\;t \leq 1.1 \cdot 10^{-200}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 2 \cdot 10^{-176}:\\ \;\;\;\;z\\ \mathbf{elif}\;t \leq 2.25 \cdot 10^{-135}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;t \leq 8.5 \cdot 10^{-68}:\\ \;\;\;\;z\\ \mathbf{elif}\;t \leq 1.4 \cdot 10^{+22}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;t \cdot b\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -1.6e+108)
   (* t b)
   (if (<= t -1.1e-227)
     (* y b)
     (if (<= t 2.3e-280)
       (* -2.0 b)
       (if (<= t 1.1e-200)
         x
         (if (<= t 2e-176)
           z
           (if (<= t 2.25e-135)
             (* y b)
             (if (<= t 8.5e-68) z (if (<= t 1.4e+22) x (* t b))))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1.6e+108) {
		tmp = t * b;
	} else if (t <= -1.1e-227) {
		tmp = y * b;
	} else if (t <= 2.3e-280) {
		tmp = -2.0 * b;
	} else if (t <= 1.1e-200) {
		tmp = x;
	} else if (t <= 2e-176) {
		tmp = z;
	} else if (t <= 2.25e-135) {
		tmp = y * b;
	} else if (t <= 8.5e-68) {
		tmp = z;
	} else if (t <= 1.4e+22) {
		tmp = x;
	} 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 <= (-1.6d+108)) then
        tmp = t * b
    else if (t <= (-1.1d-227)) then
        tmp = y * b
    else if (t <= 2.3d-280) then
        tmp = (-2.0d0) * b
    else if (t <= 1.1d-200) then
        tmp = x
    else if (t <= 2d-176) then
        tmp = z
    else if (t <= 2.25d-135) then
        tmp = y * b
    else if (t <= 8.5d-68) then
        tmp = z
    else if (t <= 1.4d+22) then
        tmp = x
    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 <= -1.6e+108) {
		tmp = t * b;
	} else if (t <= -1.1e-227) {
		tmp = y * b;
	} else if (t <= 2.3e-280) {
		tmp = -2.0 * b;
	} else if (t <= 1.1e-200) {
		tmp = x;
	} else if (t <= 2e-176) {
		tmp = z;
	} else if (t <= 2.25e-135) {
		tmp = y * b;
	} else if (t <= 8.5e-68) {
		tmp = z;
	} else if (t <= 1.4e+22) {
		tmp = x;
	} else {
		tmp = t * b;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -1.6e+108:
		tmp = t * b
	elif t <= -1.1e-227:
		tmp = y * b
	elif t <= 2.3e-280:
		tmp = -2.0 * b
	elif t <= 1.1e-200:
		tmp = x
	elif t <= 2e-176:
		tmp = z
	elif t <= 2.25e-135:
		tmp = y * b
	elif t <= 8.5e-68:
		tmp = z
	elif t <= 1.4e+22:
		tmp = x
	else:
		tmp = t * b
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -1.6e+108)
		tmp = Float64(t * b);
	elseif (t <= -1.1e-227)
		tmp = Float64(y * b);
	elseif (t <= 2.3e-280)
		tmp = Float64(-2.0 * b);
	elseif (t <= 1.1e-200)
		tmp = x;
	elseif (t <= 2e-176)
		tmp = z;
	elseif (t <= 2.25e-135)
		tmp = Float64(y * b);
	elseif (t <= 8.5e-68)
		tmp = z;
	elseif (t <= 1.4e+22)
		tmp = x;
	else
		tmp = Float64(t * b);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -1.6e+108)
		tmp = t * b;
	elseif (t <= -1.1e-227)
		tmp = y * b;
	elseif (t <= 2.3e-280)
		tmp = -2.0 * b;
	elseif (t <= 1.1e-200)
		tmp = x;
	elseif (t <= 2e-176)
		tmp = z;
	elseif (t <= 2.25e-135)
		tmp = y * b;
	elseif (t <= 8.5e-68)
		tmp = z;
	elseif (t <= 1.4e+22)
		tmp = x;
	else
		tmp = t * b;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -1.6e+108], N[(t * b), $MachinePrecision], If[LessEqual[t, -1.1e-227], N[(y * b), $MachinePrecision], If[LessEqual[t, 2.3e-280], N[(-2.0 * b), $MachinePrecision], If[LessEqual[t, 1.1e-200], x, If[LessEqual[t, 2e-176], z, If[LessEqual[t, 2.25e-135], N[(y * b), $MachinePrecision], If[LessEqual[t, 8.5e-68], z, If[LessEqual[t, 1.4e+22], x, N[(t * b), $MachinePrecision]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.6 \cdot 10^{+108}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;t \leq -1.1 \cdot 10^{-227}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;t \leq 2.3 \cdot 10^{-280}:\\
\;\;\;\;-2 \cdot b\\

\mathbf{elif}\;t \leq 1.1 \cdot 10^{-200}:\\
\;\;\;\;x\\

\mathbf{elif}\;t \leq 2 \cdot 10^{-176}:\\
\;\;\;\;z\\

\mathbf{elif}\;t \leq 2.25 \cdot 10^{-135}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;t \leq 8.5 \cdot 10^{-68}:\\
\;\;\;\;z\\

\mathbf{elif}\;t \leq 1.4 \cdot 10^{+22}:\\
\;\;\;\;x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if t < -1.6e108 or 1.4e22 < t

    1. Initial program 95.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 78.3%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]
    4. Taylor expanded in b around inf 47.4%

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

    if -1.6e108 < t < -1.0999999999999999e-227 or 2e-176 < t < 2.24999999999999994e-135

    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. Add Preprocessing
    3. Taylor expanded in b around inf 45.1%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    4. Taylor expanded in y around inf 34.4%

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

    if -1.0999999999999999e-227 < t < 2.3e-280

    1. Initial program 93.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 55.9%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    4. Taylor expanded in t around 0 55.9%

      \[\leadsto \color{blue}{b \cdot \left(y - 2\right)} \]
    5. Taylor expanded in y around 0 36.6%

      \[\leadsto \color{blue}{-2 \cdot b} \]
    6. Step-by-step derivation
      1. *-commutative36.6%

        \[\leadsto \color{blue}{b \cdot -2} \]
    7. Simplified36.6%

      \[\leadsto \color{blue}{b \cdot -2} \]

    if 2.3e-280 < t < 1.10000000000000007e-200 or 8.50000000000000026e-68 < t < 1.4e22

    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. Add Preprocessing
    3. Taylor expanded in x around inf 34.2%

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

    if 1.10000000000000007e-200 < t < 2e-176 or 2.24999999999999994e-135 < t < 8.50000000000000026e-68

    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. Add Preprocessing
    3. Taylor expanded in z around inf 47.3%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    4. Taylor expanded in y around 0 31.3%

      \[\leadsto \color{blue}{z} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification39.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.6 \cdot 10^{+108}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;t \leq -1.1 \cdot 10^{-227}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;t \leq 2.3 \cdot 10^{-280}:\\ \;\;\;\;-2 \cdot b\\ \mathbf{elif}\;t \leq 1.1 \cdot 10^{-200}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 2 \cdot 10^{-176}:\\ \;\;\;\;z\\ \mathbf{elif}\;t \leq 2.25 \cdot 10^{-135}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;t \leq 8.5 \cdot 10^{-68}:\\ \;\;\;\;z\\ \mathbf{elif}\;t \leq 1.4 \cdot 10^{+22}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;t \cdot b\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 62.8% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ t_2 := x + b \cdot \left(\left(y + t\right) - 2\right)\\ t_3 := x + z \cdot \left(1 - y\right)\\ \mathbf{if}\;b \leq -1.05 \cdot 10^{+107}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq -1.42 \cdot 10^{+76}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -3.05 \cdot 10^{-12}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq 4.6 \cdot 10^{-146}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq 1.5 \cdot 10^{-80}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 9500000:\\ \;\;\;\;t\_3\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t)))
        (t_2 (+ x (* b (- (+ y t) 2.0))))
        (t_3 (+ x (* z (- 1.0 y)))))
   (if (<= b -1.05e+107)
     t_2
     (if (<= b -1.42e+76)
       t_1
       (if (<= b -3.05e-12)
         t_2
         (if (<= b 4.6e-146)
           t_3
           (if (<= b 1.5e-80) t_1 (if (<= b 9500000.0) t_3 t_2))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = a * (1.0 - t);
	double t_2 = x + (b * ((y + t) - 2.0));
	double t_3 = x + (z * (1.0 - y));
	double tmp;
	if (b <= -1.05e+107) {
		tmp = t_2;
	} else if (b <= -1.42e+76) {
		tmp = t_1;
	} else if (b <= -3.05e-12) {
		tmp = t_2;
	} else if (b <= 4.6e-146) {
		tmp = t_3;
	} else if (b <= 1.5e-80) {
		tmp = t_1;
	} else if (b <= 9500000.0) {
		tmp = t_3;
	} 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) :: t_3
    real(8) :: tmp
    t_1 = a * (1.0d0 - t)
    t_2 = x + (b * ((y + t) - 2.0d0))
    t_3 = x + (z * (1.0d0 - y))
    if (b <= (-1.05d+107)) then
        tmp = t_2
    else if (b <= (-1.42d+76)) then
        tmp = t_1
    else if (b <= (-3.05d-12)) then
        tmp = t_2
    else if (b <= 4.6d-146) then
        tmp = t_3
    else if (b <= 1.5d-80) then
        tmp = t_1
    else if (b <= 9500000.0d0) then
        tmp = t_3
    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 = a * (1.0 - t);
	double t_2 = x + (b * ((y + t) - 2.0));
	double t_3 = x + (z * (1.0 - y));
	double tmp;
	if (b <= -1.05e+107) {
		tmp = t_2;
	} else if (b <= -1.42e+76) {
		tmp = t_1;
	} else if (b <= -3.05e-12) {
		tmp = t_2;
	} else if (b <= 4.6e-146) {
		tmp = t_3;
	} else if (b <= 1.5e-80) {
		tmp = t_1;
	} else if (b <= 9500000.0) {
		tmp = t_3;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	t_2 = x + (b * ((y + t) - 2.0))
	t_3 = x + (z * (1.0 - y))
	tmp = 0
	if b <= -1.05e+107:
		tmp = t_2
	elif b <= -1.42e+76:
		tmp = t_1
	elif b <= -3.05e-12:
		tmp = t_2
	elif b <= 4.6e-146:
		tmp = t_3
	elif b <= 1.5e-80:
		tmp = t_1
	elif b <= 9500000.0:
		tmp = t_3
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a * Float64(1.0 - t))
	t_2 = Float64(x + Float64(b * Float64(Float64(y + t) - 2.0)))
	t_3 = Float64(x + Float64(z * Float64(1.0 - y)))
	tmp = 0.0
	if (b <= -1.05e+107)
		tmp = t_2;
	elseif (b <= -1.42e+76)
		tmp = t_1;
	elseif (b <= -3.05e-12)
		tmp = t_2;
	elseif (b <= 4.6e-146)
		tmp = t_3;
	elseif (b <= 1.5e-80)
		tmp = t_1;
	elseif (b <= 9500000.0)
		tmp = t_3;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = a * (1.0 - t);
	t_2 = x + (b * ((y + t) - 2.0));
	t_3 = x + (z * (1.0 - y));
	tmp = 0.0;
	if (b <= -1.05e+107)
		tmp = t_2;
	elseif (b <= -1.42e+76)
		tmp = t_1;
	elseif (b <= -3.05e-12)
		tmp = t_2;
	elseif (b <= 4.6e-146)
		tmp = t_3;
	elseif (b <= 1.5e-80)
		tmp = t_1;
	elseif (b <= 9500000.0)
		tmp = t_3;
	else
		tmp = t_2;
	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[(x + N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1.05e+107], t$95$2, If[LessEqual[b, -1.42e+76], t$95$1, If[LessEqual[b, -3.05e-12], t$95$2, If[LessEqual[b, 4.6e-146], t$95$3, If[LessEqual[b, 1.5e-80], t$95$1, If[LessEqual[b, 9500000.0], t$95$3, t$95$2]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
t_2 := x + b \cdot \left(\left(y + t\right) - 2\right)\\
t_3 := x + z \cdot \left(1 - y\right)\\
\mathbf{if}\;b \leq -1.05 \cdot 10^{+107}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq -1.42 \cdot 10^{+76}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -3.05 \cdot 10^{-12}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq 4.6 \cdot 10^{-146}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq 1.5 \cdot 10^{-80}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq 9500000:\\
\;\;\;\;t\_3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -1.05e107 or -1.41999999999999996e76 < b < -3.0500000000000001e-12 or 9.5e6 < b

    1. Initial program 93.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 88.1%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in z around 0 80.3%

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

    if -1.05e107 < b < -1.41999999999999996e76 or 4.6000000000000001e-146 < b < 1.50000000000000004e-80

    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. Add Preprocessing
    3. Taylor expanded in a around inf 76.1%

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

    if -3.0500000000000001e-12 < b < 4.6000000000000001e-146 or 1.50000000000000004e-80 < b < 9.5e6

    1. Initial program 99.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 71.6%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in b around 0 62.9%

      \[\leadsto \color{blue}{x - z \cdot \left(y - 1\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification72.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.05 \cdot 10^{+107}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -1.42 \cdot 10^{+76}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -3.05 \cdot 10^{-12}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq 4.6 \cdot 10^{-146}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 1.5 \cdot 10^{-80}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 9500000:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 61.9% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + b \cdot \left(\left(y + t\right) - 2\right)\\ t_2 := a \cdot \left(1 - t\right)\\ t_3 := x + z \cdot \left(1 - y\right)\\ \mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -9 \cdot 10^{+64}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq -5.1 \cdot 10^{-12}:\\ \;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\ \mathbf{elif}\;b \leq 4.6 \cdot 10^{-146}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq 4.1 \cdot 10^{-81}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq 2400000:\\ \;\;\;\;t\_3\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* b (- (+ y t) 2.0))))
        (t_2 (* a (- 1.0 t)))
        (t_3 (+ x (* z (- 1.0 y)))))
   (if (<= b -1e+107)
     t_1
     (if (<= b -9e+64)
       t_2
       (if (<= b -5.1e-12)
         (- (* -2.0 b) (* y (- z b)))
         (if (<= b 4.6e-146)
           t_3
           (if (<= b 4.1e-81) t_2 (if (<= b 2400000.0) t_3 t_1))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (b * ((y + t) - 2.0));
	double t_2 = a * (1.0 - t);
	double t_3 = x + (z * (1.0 - y));
	double tmp;
	if (b <= -1e+107) {
		tmp = t_1;
	} else if (b <= -9e+64) {
		tmp = t_2;
	} else if (b <= -5.1e-12) {
		tmp = (-2.0 * b) - (y * (z - b));
	} else if (b <= 4.6e-146) {
		tmp = t_3;
	} else if (b <= 4.1e-81) {
		tmp = t_2;
	} else if (b <= 2400000.0) {
		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 = x + (b * ((y + t) - 2.0d0))
    t_2 = a * (1.0d0 - t)
    t_3 = x + (z * (1.0d0 - y))
    if (b <= (-1d+107)) then
        tmp = t_1
    else if (b <= (-9d+64)) then
        tmp = t_2
    else if (b <= (-5.1d-12)) then
        tmp = ((-2.0d0) * b) - (y * (z - b))
    else if (b <= 4.6d-146) then
        tmp = t_3
    else if (b <= 4.1d-81) then
        tmp = t_2
    else if (b <= 2400000.0d0) 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 = x + (b * ((y + t) - 2.0));
	double t_2 = a * (1.0 - t);
	double t_3 = x + (z * (1.0 - y));
	double tmp;
	if (b <= -1e+107) {
		tmp = t_1;
	} else if (b <= -9e+64) {
		tmp = t_2;
	} else if (b <= -5.1e-12) {
		tmp = (-2.0 * b) - (y * (z - b));
	} else if (b <= 4.6e-146) {
		tmp = t_3;
	} else if (b <= 4.1e-81) {
		tmp = t_2;
	} else if (b <= 2400000.0) {
		tmp = t_3;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (b * ((y + t) - 2.0))
	t_2 = a * (1.0 - t)
	t_3 = x + (z * (1.0 - y))
	tmp = 0
	if b <= -1e+107:
		tmp = t_1
	elif b <= -9e+64:
		tmp = t_2
	elif b <= -5.1e-12:
		tmp = (-2.0 * b) - (y * (z - b))
	elif b <= 4.6e-146:
		tmp = t_3
	elif b <= 4.1e-81:
		tmp = t_2
	elif b <= 2400000.0:
		tmp = t_3
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(b * Float64(Float64(y + t) - 2.0)))
	t_2 = Float64(a * Float64(1.0 - t))
	t_3 = Float64(x + Float64(z * Float64(1.0 - y)))
	tmp = 0.0
	if (b <= -1e+107)
		tmp = t_1;
	elseif (b <= -9e+64)
		tmp = t_2;
	elseif (b <= -5.1e-12)
		tmp = Float64(Float64(-2.0 * b) - Float64(y * Float64(z - b)));
	elseif (b <= 4.6e-146)
		tmp = t_3;
	elseif (b <= 4.1e-81)
		tmp = t_2;
	elseif (b <= 2400000.0)
		tmp = t_3;
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (b * ((y + t) - 2.0));
	t_2 = a * (1.0 - t);
	t_3 = x + (z * (1.0 - y));
	tmp = 0.0;
	if (b <= -1e+107)
		tmp = t_1;
	elseif (b <= -9e+64)
		tmp = t_2;
	elseif (b <= -5.1e-12)
		tmp = (-2.0 * b) - (y * (z - b));
	elseif (b <= 4.6e-146)
		tmp = t_3;
	elseif (b <= 4.1e-81)
		tmp = t_2;
	elseif (b <= 2400000.0)
		tmp = t_3;
	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[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1e+107], t$95$1, If[LessEqual[b, -9e+64], t$95$2, If[LessEqual[b, -5.1e-12], N[(N[(-2.0 * b), $MachinePrecision] - N[(y * N[(z - b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 4.6e-146], t$95$3, If[LessEqual[b, 4.1e-81], t$95$2, If[LessEqual[b, 2400000.0], t$95$3, t$95$1]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + b \cdot \left(\left(y + t\right) - 2\right)\\
t_2 := a \cdot \left(1 - t\right)\\
t_3 := x + z \cdot \left(1 - y\right)\\
\mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -9 \cdot 10^{+64}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq -5.1 \cdot 10^{-12}:\\
\;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\

\mathbf{elif}\;b \leq 4.6 \cdot 10^{-146}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq 4.1 \cdot 10^{-81}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq 2400000:\\
\;\;\;\;t\_3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if b < -9.9999999999999997e106 or 2.4e6 < b

    1. Initial program 93.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 88.5%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in z around 0 83.7%

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

    if -9.9999999999999997e106 < b < -8.99999999999999946e64 or 4.6000000000000001e-146 < b < 4.09999999999999984e-81

    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. Add Preprocessing
    3. Taylor expanded in a around inf 70.7%

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

    if -8.99999999999999946e64 < b < -5.09999999999999968e-12

    1. Initial program 93.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 76.5%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg76.5%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in76.5%

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

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

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right) + b \cdot \left(y - 2\right)} \]
    7. Step-by-step derivation
      1. sub-neg69.9%

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

        \[\leadsto -1 \cdot \left(y \cdot z\right) + b \cdot \left(y + \color{blue}{-2}\right) \]
      3. distribute-rgt-in69.9%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + \color{blue}{\left(y \cdot b + -2 \cdot b\right)} \]
      4. *-commutative69.9%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + \left(\color{blue}{b \cdot y} + -2 \cdot b\right) \]
      5. associate-+r+69.9%

        \[\leadsto \color{blue}{\left(-1 \cdot \left(y \cdot z\right) + b \cdot y\right) + -2 \cdot b} \]
      6. mul-1-neg69.9%

        \[\leadsto \left(\color{blue}{\left(-y \cdot z\right)} + b \cdot y\right) + -2 \cdot b \]
      7. distribute-rgt-neg-in69.9%

        \[\leadsto \left(\color{blue}{y \cdot \left(-z\right)} + b \cdot y\right) + -2 \cdot b \]
      8. mul-1-neg69.9%

        \[\leadsto \left(y \cdot \color{blue}{\left(-1 \cdot z\right)} + b \cdot y\right) + -2 \cdot b \]
      9. *-commutative69.9%

        \[\leadsto \left(y \cdot \left(-1 \cdot z\right) + \color{blue}{y \cdot b}\right) + -2 \cdot b \]
      10. distribute-lft-in69.8%

        \[\leadsto \color{blue}{y \cdot \left(-1 \cdot z + b\right)} + -2 \cdot b \]
      11. +-commutative69.8%

        \[\leadsto y \cdot \color{blue}{\left(b + -1 \cdot z\right)} + -2 \cdot b \]
      12. mul-1-neg69.8%

        \[\leadsto y \cdot \left(b + \color{blue}{\left(-z\right)}\right) + -2 \cdot b \]
      13. sub-neg69.8%

        \[\leadsto y \cdot \color{blue}{\left(b - z\right)} + -2 \cdot b \]
      14. *-commutative69.8%

        \[\leadsto y \cdot \left(b - z\right) + \color{blue}{b \cdot -2} \]
    8. Simplified69.8%

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

    if -5.09999999999999968e-12 < b < 4.6000000000000001e-146 or 4.09999999999999984e-81 < b < 2.4e6

    1. Initial program 99.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 71.6%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in b around 0 62.9%

      \[\leadsto \color{blue}{x - z \cdot \left(y - 1\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification73.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -9 \cdot 10^{+64}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -5.1 \cdot 10^{-12}:\\ \;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\ \mathbf{elif}\;b \leq 4.6 \cdot 10^{-146}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 4.1 \cdot 10^{-81}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 2400000:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 50.3% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := z \cdot \left(1 - y\right)\\ t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq -2.4 \cdot 10^{+63}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -1.12 \cdot 10^{-12}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;b \leq 6.5 \cdot 10^{-130}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 1.9 \cdot 10^{-31}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;b \leq 1950000:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* z (- 1.0 y))) (t_2 (* b (- (+ y t) 2.0))))
   (if (<= b -1e+107)
     t_2
     (if (<= b -2.4e+63)
       (* a (- 1.0 t))
       (if (<= b -1.12e-12)
         (* y (- b z))
         (if (<= b 6.5e-130)
           t_1
           (if (<= b 1.9e-31)
             (* t (- b a))
             (if (<= b 1950000.0) t_1 t_2))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = z * (1.0 - y);
	double t_2 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -1e+107) {
		tmp = t_2;
	} else if (b <= -2.4e+63) {
		tmp = a * (1.0 - t);
	} else if (b <= -1.12e-12) {
		tmp = y * (b - z);
	} else if (b <= 6.5e-130) {
		tmp = t_1;
	} else if (b <= 1.9e-31) {
		tmp = t * (b - a);
	} else if (b <= 1950000.0) {
		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 = z * (1.0d0 - y)
    t_2 = b * ((y + t) - 2.0d0)
    if (b <= (-1d+107)) then
        tmp = t_2
    else if (b <= (-2.4d+63)) then
        tmp = a * (1.0d0 - t)
    else if (b <= (-1.12d-12)) then
        tmp = y * (b - z)
    else if (b <= 6.5d-130) then
        tmp = t_1
    else if (b <= 1.9d-31) then
        tmp = t * (b - a)
    else if (b <= 1950000.0d0) 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 = z * (1.0 - y);
	double t_2 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -1e+107) {
		tmp = t_2;
	} else if (b <= -2.4e+63) {
		tmp = a * (1.0 - t);
	} else if (b <= -1.12e-12) {
		tmp = y * (b - z);
	} else if (b <= 6.5e-130) {
		tmp = t_1;
	} else if (b <= 1.9e-31) {
		tmp = t * (b - a);
	} else if (b <= 1950000.0) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = z * (1.0 - y)
	t_2 = b * ((y + t) - 2.0)
	tmp = 0
	if b <= -1e+107:
		tmp = t_2
	elif b <= -2.4e+63:
		tmp = a * (1.0 - t)
	elif b <= -1.12e-12:
		tmp = y * (b - z)
	elif b <= 6.5e-130:
		tmp = t_1
	elif b <= 1.9e-31:
		tmp = t * (b - a)
	elif b <= 1950000.0:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(z * Float64(1.0 - y))
	t_2 = Float64(b * Float64(Float64(y + t) - 2.0))
	tmp = 0.0
	if (b <= -1e+107)
		tmp = t_2;
	elseif (b <= -2.4e+63)
		tmp = Float64(a * Float64(1.0 - t));
	elseif (b <= -1.12e-12)
		tmp = Float64(y * Float64(b - z));
	elseif (b <= 6.5e-130)
		tmp = t_1;
	elseif (b <= 1.9e-31)
		tmp = Float64(t * Float64(b - a));
	elseif (b <= 1950000.0)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = z * (1.0 - y);
	t_2 = b * ((y + t) - 2.0);
	tmp = 0.0;
	if (b <= -1e+107)
		tmp = t_2;
	elseif (b <= -2.4e+63)
		tmp = a * (1.0 - t);
	elseif (b <= -1.12e-12)
		tmp = y * (b - z);
	elseif (b <= 6.5e-130)
		tmp = t_1;
	elseif (b <= 1.9e-31)
		tmp = t * (b - a);
	elseif (b <= 1950000.0)
		tmp = t_1;
	else
		tmp = t_2;
	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[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1e+107], t$95$2, If[LessEqual[b, -2.4e+63], N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, -1.12e-12], N[(y * N[(b - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 6.5e-130], t$95$1, If[LessEqual[b, 1.9e-31], N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 1950000.0], t$95$1, t$95$2]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := z \cdot \left(1 - y\right)\\
t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq -2.4 \cdot 10^{+63}:\\
\;\;\;\;a \cdot \left(1 - t\right)\\

\mathbf{elif}\;b \leq -1.12 \cdot 10^{-12}:\\
\;\;\;\;y \cdot \left(b - z\right)\\

\mathbf{elif}\;b \leq 6.5 \cdot 10^{-130}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq 1.9 \cdot 10^{-31}:\\
\;\;\;\;t \cdot \left(b - a\right)\\

\mathbf{elif}\;b \leq 1950000:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if b < -9.9999999999999997e106 or 1.95e6 < b

    1. Initial program 93.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 78.4%

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

    if -9.9999999999999997e106 < b < -2.4e63

    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. Add Preprocessing
    3. Taylor expanded in a around inf 67.4%

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

    if -2.4e63 < b < -1.1200000000000001e-12

    1. Initial program 92.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 64.9%

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

    if -1.1200000000000001e-12 < b < 6.5000000000000002e-130 or 1.9e-31 < b < 1.95e6

    1. Initial program 99.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 44.6%

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

    if 6.5000000000000002e-130 < b < 1.9e-31

    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. Add Preprocessing
    3. Taylor expanded in t around inf 60.6%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification62.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1 \cdot 10^{+107}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -2.4 \cdot 10^{+63}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -1.12 \cdot 10^{-12}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;b \leq 6.5 \cdot 10^{-130}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 1.9 \cdot 10^{-31}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;b \leq 1950000:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 81.1% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(a \cdot \left(1 - t\right) - z \cdot \left(y + -1\right)\right)\\ t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\ t_3 := x + t\_2\\ \mathbf{if}\;b \leq -5 \cdot 10^{+170}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq -6.5 \cdot 10^{+65}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -1.7 \cdot 10^{-12}:\\ \;\;\;\;t\_2 - y \cdot z\\ \mathbf{elif}\;b \leq 4.8 \cdot 10^{+53}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_3\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (- (* a (- 1.0 t)) (* z (+ y -1.0)))))
        (t_2 (* b (- (+ y t) 2.0)))
        (t_3 (+ x t_2)))
   (if (<= b -5e+170)
     t_3
     (if (<= b -6.5e+65)
       t_1
       (if (<= b -1.7e-12) (- t_2 (* y z)) (if (<= b 4.8e+53) t_1 t_3))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + ((a * (1.0 - t)) - (z * (y + -1.0)));
	double t_2 = b * ((y + t) - 2.0);
	double t_3 = x + t_2;
	double tmp;
	if (b <= -5e+170) {
		tmp = t_3;
	} else if (b <= -6.5e+65) {
		tmp = t_1;
	} else if (b <= -1.7e-12) {
		tmp = t_2 - (y * z);
	} else if (b <= 4.8e+53) {
		tmp = t_1;
	} 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 = x + ((a * (1.0d0 - t)) - (z * (y + (-1.0d0))))
    t_2 = b * ((y + t) - 2.0d0)
    t_3 = x + t_2
    if (b <= (-5d+170)) then
        tmp = t_3
    else if (b <= (-6.5d+65)) then
        tmp = t_1
    else if (b <= (-1.7d-12)) then
        tmp = t_2 - (y * z)
    else if (b <= 4.8d+53) then
        tmp = t_1
    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 = x + ((a * (1.0 - t)) - (z * (y + -1.0)));
	double t_2 = b * ((y + t) - 2.0);
	double t_3 = x + t_2;
	double tmp;
	if (b <= -5e+170) {
		tmp = t_3;
	} else if (b <= -6.5e+65) {
		tmp = t_1;
	} else if (b <= -1.7e-12) {
		tmp = t_2 - (y * z);
	} else if (b <= 4.8e+53) {
		tmp = t_1;
	} else {
		tmp = t_3;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + ((a * (1.0 - t)) - (z * (y + -1.0)))
	t_2 = b * ((y + t) - 2.0)
	t_3 = x + t_2
	tmp = 0
	if b <= -5e+170:
		tmp = t_3
	elif b <= -6.5e+65:
		tmp = t_1
	elif b <= -1.7e-12:
		tmp = t_2 - (y * z)
	elif b <= 4.8e+53:
		tmp = t_1
	else:
		tmp = t_3
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(Float64(a * Float64(1.0 - t)) - Float64(z * Float64(y + -1.0))))
	t_2 = Float64(b * Float64(Float64(y + t) - 2.0))
	t_3 = Float64(x + t_2)
	tmp = 0.0
	if (b <= -5e+170)
		tmp = t_3;
	elseif (b <= -6.5e+65)
		tmp = t_1;
	elseif (b <= -1.7e-12)
		tmp = Float64(t_2 - Float64(y * z));
	elseif (b <= 4.8e+53)
		tmp = t_1;
	else
		tmp = t_3;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + ((a * (1.0 - t)) - (z * (y + -1.0)));
	t_2 = b * ((y + t) - 2.0);
	t_3 = x + t_2;
	tmp = 0.0;
	if (b <= -5e+170)
		tmp = t_3;
	elseif (b <= -6.5e+65)
		tmp = t_1;
	elseif (b <= -1.7e-12)
		tmp = t_2 - (y * z);
	elseif (b <= 4.8e+53)
		tmp = t_1;
	else
		tmp = t_3;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision] - N[(z * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x + t$95$2), $MachinePrecision]}, If[LessEqual[b, -5e+170], t$95$3, If[LessEqual[b, -6.5e+65], t$95$1, If[LessEqual[b, -1.7e-12], N[(t$95$2 - N[(y * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 4.8e+53], t$95$1, t$95$3]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(a \cdot \left(1 - t\right) - z \cdot \left(y + -1\right)\right)\\
t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\
t_3 := x + t\_2\\
\mathbf{if}\;b \leq -5 \cdot 10^{+170}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq -6.5 \cdot 10^{+65}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -1.7 \cdot 10^{-12}:\\
\;\;\;\;t\_2 - y \cdot z\\

\mathbf{elif}\;b \leq 4.8 \cdot 10^{+53}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -4.99999999999999977e170 or 4.8e53 < b

    1. Initial program 94.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 91.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in z around 0 89.9%

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

    if -4.99999999999999977e170 < b < -6.5000000000000003e65 or -1.7e-12 < b < 4.8e53

    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. Add Preprocessing
    3. Taylor expanded in b around 0 87.0%

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

    if -6.5000000000000003e65 < b < -1.7e-12

    1. Initial program 93.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 77.9%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg77.9%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in77.9%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified77.9%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
  3. Recombined 3 regimes into one program.
  4. Final simplification87.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -5 \cdot 10^{+170}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -6.5 \cdot 10^{+65}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) - z \cdot \left(y + -1\right)\right)\\ \mathbf{elif}\;b \leq -1.7 \cdot 10^{-12}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right) - y \cdot z\\ \mathbf{elif}\;b \leq 4.8 \cdot 10^{+53}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) - z \cdot \left(y + -1\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 59.0% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := t \cdot \left(b - a\right)\\ \mathbf{if}\;t \leq -7.2 \cdot 10^{+55}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq -6 \cdot 10^{-184}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;t \leq 8.5 \cdot 10^{-281}:\\ \;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\ \mathbf{elif}\;t \leq 1.2 \cdot 10^{-207}:\\ \;\;\;\;a + \left(x + y \cdot b\right)\\ \mathbf{elif}\;t \leq 5.4 \cdot 10^{+84}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* t (- b a))))
   (if (<= t -7.2e+55)
     t_1
     (if (<= t -6e-184)
       (+ x (* b (- (+ y t) 2.0)))
       (if (<= t 8.5e-281)
         (- (* -2.0 b) (* y (- z b)))
         (if (<= t 1.2e-207)
           (+ a (+ x (* y b)))
           (if (<= t 5.4e+84) (+ x (* z (- 1.0 y))) 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 <= -7.2e+55) {
		tmp = t_1;
	} else if (t <= -6e-184) {
		tmp = x + (b * ((y + t) - 2.0));
	} else if (t <= 8.5e-281) {
		tmp = (-2.0 * b) - (y * (z - b));
	} else if (t <= 1.2e-207) {
		tmp = a + (x + (y * b));
	} else if (t <= 5.4e+84) {
		tmp = x + (z * (1.0 - y));
	} 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 <= (-7.2d+55)) then
        tmp = t_1
    else if (t <= (-6d-184)) then
        tmp = x + (b * ((y + t) - 2.0d0))
    else if (t <= 8.5d-281) then
        tmp = ((-2.0d0) * b) - (y * (z - b))
    else if (t <= 1.2d-207) then
        tmp = a + (x + (y * b))
    else if (t <= 5.4d+84) then
        tmp = x + (z * (1.0d0 - y))
    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 <= -7.2e+55) {
		tmp = t_1;
	} else if (t <= -6e-184) {
		tmp = x + (b * ((y + t) - 2.0));
	} else if (t <= 8.5e-281) {
		tmp = (-2.0 * b) - (y * (z - b));
	} else if (t <= 1.2e-207) {
		tmp = a + (x + (y * b));
	} else if (t <= 5.4e+84) {
		tmp = x + (z * (1.0 - y));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = t * (b - a)
	tmp = 0
	if t <= -7.2e+55:
		tmp = t_1
	elif t <= -6e-184:
		tmp = x + (b * ((y + t) - 2.0))
	elif t <= 8.5e-281:
		tmp = (-2.0 * b) - (y * (z - b))
	elif t <= 1.2e-207:
		tmp = a + (x + (y * b))
	elif t <= 5.4e+84:
		tmp = x + (z * (1.0 - y))
	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 <= -7.2e+55)
		tmp = t_1;
	elseif (t <= -6e-184)
		tmp = Float64(x + Float64(b * Float64(Float64(y + t) - 2.0)));
	elseif (t <= 8.5e-281)
		tmp = Float64(Float64(-2.0 * b) - Float64(y * Float64(z - b)));
	elseif (t <= 1.2e-207)
		tmp = Float64(a + Float64(x + Float64(y * b)));
	elseif (t <= 5.4e+84)
		tmp = Float64(x + Float64(z * Float64(1.0 - y)));
	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 <= -7.2e+55)
		tmp = t_1;
	elseif (t <= -6e-184)
		tmp = x + (b * ((y + t) - 2.0));
	elseif (t <= 8.5e-281)
		tmp = (-2.0 * b) - (y * (z - b));
	elseif (t <= 1.2e-207)
		tmp = a + (x + (y * b));
	elseif (t <= 5.4e+84)
		tmp = x + (z * (1.0 - y));
	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, -7.2e+55], t$95$1, If[LessEqual[t, -6e-184], N[(x + N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 8.5e-281], N[(N[(-2.0 * b), $MachinePrecision] - N[(y * N[(z - b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 1.2e-207], N[(a + N[(x + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 5.4e+84], N[(x + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := t \cdot \left(b - a\right)\\
\mathbf{if}\;t \leq -7.2 \cdot 10^{+55}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq -6 \cdot 10^{-184}:\\
\;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\

\mathbf{elif}\;t \leq 8.5 \cdot 10^{-281}:\\
\;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\

\mathbf{elif}\;t \leq 1.2 \cdot 10^{-207}:\\
\;\;\;\;a + \left(x + y \cdot b\right)\\

\mathbf{elif}\;t \leq 5.4 \cdot 10^{+84}:\\
\;\;\;\;x + z \cdot \left(1 - y\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if t < -7.19999999999999975e55 or 5.4e84 < t

    1. Initial program 93.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 79.0%

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

    if -7.19999999999999975e55 < t < -5.99999999999999982e-184

    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. Add Preprocessing
    3. Taylor expanded in a around 0 89.5%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in z around 0 62.5%

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

    if -5.99999999999999982e-184 < t < 8.4999999999999994e-281

    1. Initial program 95.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 70.6%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg70.6%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in70.6%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified70.6%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in t around 0 70.6%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right) + b \cdot \left(y - 2\right)} \]
    7. Step-by-step derivation
      1. sub-neg70.6%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + b \cdot \color{blue}{\left(y + \left(-2\right)\right)} \]
      2. metadata-eval70.6%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + b \cdot \left(y + \color{blue}{-2}\right) \]
      3. distribute-rgt-in70.6%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + \color{blue}{\left(y \cdot b + -2 \cdot b\right)} \]
      4. *-commutative70.6%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + \left(\color{blue}{b \cdot y} + -2 \cdot b\right) \]
      5. associate-+r+70.6%

        \[\leadsto \color{blue}{\left(-1 \cdot \left(y \cdot z\right) + b \cdot y\right) + -2 \cdot b} \]
      6. mul-1-neg70.6%

        \[\leadsto \left(\color{blue}{\left(-y \cdot z\right)} + b \cdot y\right) + -2 \cdot b \]
      7. distribute-rgt-neg-in70.6%

        \[\leadsto \left(\color{blue}{y \cdot \left(-z\right)} + b \cdot y\right) + -2 \cdot b \]
      8. mul-1-neg70.6%

        \[\leadsto \left(y \cdot \color{blue}{\left(-1 \cdot z\right)} + b \cdot y\right) + -2 \cdot b \]
      9. *-commutative70.6%

        \[\leadsto \left(y \cdot \left(-1 \cdot z\right) + \color{blue}{y \cdot b}\right) + -2 \cdot b \]
      10. distribute-lft-in75.3%

        \[\leadsto \color{blue}{y \cdot \left(-1 \cdot z + b\right)} + -2 \cdot b \]
      11. +-commutative75.3%

        \[\leadsto y \cdot \color{blue}{\left(b + -1 \cdot z\right)} + -2 \cdot b \]
      12. mul-1-neg75.3%

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

        \[\leadsto y \cdot \color{blue}{\left(b - z\right)} + -2 \cdot b \]
      14. *-commutative75.3%

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

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

    if 8.4999999999999994e-281 < t < 1.19999999999999994e-207

    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. Add Preprocessing
    3. Taylor expanded in t around 0 100.0%

      \[\leadsto \color{blue}{\left(x + \left(b \cdot \left(y - 2\right) + t \cdot \left(b - a\right)\right)\right) - \left(-1 \cdot a + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in z around 0 87.6%

      \[\leadsto \color{blue}{\left(x + \left(b \cdot \left(y - 2\right) + t \cdot \left(b - a\right)\right)\right) - -1 \cdot a} \]
    5. Taylor expanded in y around inf 75.1%

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

    if 1.19999999999999994e-207 < t < 5.4e84

    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. Add Preprocessing
    3. Taylor expanded in a around 0 84.7%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in b around 0 60.4%

      \[\leadsto \color{blue}{x - z \cdot \left(y - 1\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification71.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -7.2 \cdot 10^{+55}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;t \leq -6 \cdot 10^{-184}:\\ \;\;\;\;x + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;t \leq 8.5 \cdot 10^{-281}:\\ \;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\ \mathbf{elif}\;t \leq 1.2 \cdot 10^{-207}:\\ \;\;\;\;a + \left(x + y \cdot b\right)\\ \mathbf{elif}\;t \leq 5.4 \cdot 10^{+84}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 64.3% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(b - z\right)\\ \mathbf{if}\;y \leq -7.8 \cdot 10^{+213}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq -1.3 \cdot 10^{+54}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;y \leq -116000000000:\\ \;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\ \mathbf{elif}\;y \leq 5.2 \cdot 10^{+29}:\\ \;\;\;\;x + \left(z + \left(t + -2\right) \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* y (- b z))))
   (if (<= y -7.8e+213)
     t_1
     (if (<= y -1.3e+54)
       (* b (- (+ y t) 2.0))
       (if (<= y -116000000000.0)
         (- (* -2.0 b) (* y (- z b)))
         (if (<= y 5.2e+29) (+ x (+ z (* (+ t -2.0) b))) t_1))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * (b - z);
	double tmp;
	if (y <= -7.8e+213) {
		tmp = t_1;
	} else if (y <= -1.3e+54) {
		tmp = b * ((y + t) - 2.0);
	} else if (y <= -116000000000.0) {
		tmp = (-2.0 * b) - (y * (z - b));
	} else if (y <= 5.2e+29) {
		tmp = x + (z + ((t + -2.0) * 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 * (b - z)
    if (y <= (-7.8d+213)) then
        tmp = t_1
    else if (y <= (-1.3d+54)) then
        tmp = b * ((y + t) - 2.0d0)
    else if (y <= (-116000000000.0d0)) then
        tmp = ((-2.0d0) * b) - (y * (z - b))
    else if (y <= 5.2d+29) then
        tmp = x + (z + ((t + (-2.0d0)) * 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 * (b - z);
	double tmp;
	if (y <= -7.8e+213) {
		tmp = t_1;
	} else if (y <= -1.3e+54) {
		tmp = b * ((y + t) - 2.0);
	} else if (y <= -116000000000.0) {
		tmp = (-2.0 * b) - (y * (z - b));
	} else if (y <= 5.2e+29) {
		tmp = x + (z + ((t + -2.0) * b));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = y * (b - z)
	tmp = 0
	if y <= -7.8e+213:
		tmp = t_1
	elif y <= -1.3e+54:
		tmp = b * ((y + t) - 2.0)
	elif y <= -116000000000.0:
		tmp = (-2.0 * b) - (y * (z - b))
	elif y <= 5.2e+29:
		tmp = x + (z + ((t + -2.0) * b))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(y * Float64(b - z))
	tmp = 0.0
	if (y <= -7.8e+213)
		tmp = t_1;
	elseif (y <= -1.3e+54)
		tmp = Float64(b * Float64(Float64(y + t) - 2.0));
	elseif (y <= -116000000000.0)
		tmp = Float64(Float64(-2.0 * b) - Float64(y * Float64(z - b)));
	elseif (y <= 5.2e+29)
		tmp = Float64(x + Float64(z + Float64(Float64(t + -2.0) * b)));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = y * (b - z);
	tmp = 0.0;
	if (y <= -7.8e+213)
		tmp = t_1;
	elseif (y <= -1.3e+54)
		tmp = b * ((y + t) - 2.0);
	elseif (y <= -116000000000.0)
		tmp = (-2.0 * b) - (y * (z - b));
	elseif (y <= 5.2e+29)
		tmp = x + (z + ((t + -2.0) * b));
	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]}, If[LessEqual[y, -7.8e+213], t$95$1, If[LessEqual[y, -1.3e+54], N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, -116000000000.0], N[(N[(-2.0 * b), $MachinePrecision] - N[(y * N[(z - b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 5.2e+29], N[(x + N[(z + N[(N[(t + -2.0), $MachinePrecision] * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \left(b - z\right)\\
\mathbf{if}\;y \leq -7.8 \cdot 10^{+213}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq -1.3 \cdot 10^{+54}:\\
\;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\

\mathbf{elif}\;y \leq -116000000000:\\
\;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\

\mathbf{elif}\;y \leq 5.2 \cdot 10^{+29}:\\
\;\;\;\;x + \left(z + \left(t + -2\right) \cdot b\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -7.8000000000000003e213 or 5.2e29 < y

    1. Initial program 91.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 76.6%

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

    if -7.8000000000000003e213 < y < -1.30000000000000003e54

    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. Add Preprocessing
    3. Taylor expanded in b around inf 82.8%

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

    if -1.30000000000000003e54 < y < -1.16e11

    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. Add Preprocessing
    3. Taylor expanded in y around inf 68.5%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg68.5%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in68.5%

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

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in t around 0 68.5%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right) + b \cdot \left(y - 2\right)} \]
    7. Step-by-step derivation
      1. sub-neg68.5%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + b \cdot \color{blue}{\left(y + \left(-2\right)\right)} \]
      2. metadata-eval68.5%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + b \cdot \left(y + \color{blue}{-2}\right) \]
      3. distribute-rgt-in68.5%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + \color{blue}{\left(y \cdot b + -2 \cdot b\right)} \]
      4. *-commutative68.5%

        \[\leadsto -1 \cdot \left(y \cdot z\right) + \left(\color{blue}{b \cdot y} + -2 \cdot b\right) \]
      5. associate-+r+68.5%

        \[\leadsto \color{blue}{\left(-1 \cdot \left(y \cdot z\right) + b \cdot y\right) + -2 \cdot b} \]
      6. mul-1-neg68.5%

        \[\leadsto \left(\color{blue}{\left(-y \cdot z\right)} + b \cdot y\right) + -2 \cdot b \]
      7. distribute-rgt-neg-in68.5%

        \[\leadsto \left(\color{blue}{y \cdot \left(-z\right)} + b \cdot y\right) + -2 \cdot b \]
      8. mul-1-neg68.5%

        \[\leadsto \left(y \cdot \color{blue}{\left(-1 \cdot z\right)} + b \cdot y\right) + -2 \cdot b \]
      9. *-commutative68.5%

        \[\leadsto \left(y \cdot \left(-1 \cdot z\right) + \color{blue}{y \cdot b}\right) + -2 \cdot b \]
      10. distribute-lft-in68.5%

        \[\leadsto \color{blue}{y \cdot \left(-1 \cdot z + b\right)} + -2 \cdot b \]
      11. +-commutative68.5%

        \[\leadsto y \cdot \color{blue}{\left(b + -1 \cdot z\right)} + -2 \cdot b \]
      12. mul-1-neg68.5%

        \[\leadsto y \cdot \left(b + \color{blue}{\left(-z\right)}\right) + -2 \cdot b \]
      13. sub-neg68.5%

        \[\leadsto y \cdot \color{blue}{\left(b - z\right)} + -2 \cdot b \]
      14. *-commutative68.5%

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

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

    if -1.16e11 < y < 5.2e29

    1. Initial program 99.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 72.9%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in y around 0 72.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    5. Step-by-step derivation
      1. neg-mul-172.3%

        \[\leadsto \left(x + b \cdot \left(t - 2\right)\right) - \color{blue}{\left(-z\right)} \]
      2. associate--l+72.3%

        \[\leadsto \color{blue}{x + \left(b \cdot \left(t - 2\right) - \left(-z\right)\right)} \]
      3. sub-neg72.3%

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

        \[\leadsto x + \left(b \cdot \left(t + \color{blue}{-2}\right) - \left(-z\right)\right) \]
    6. Simplified72.3%

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification74.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.8 \cdot 10^{+213}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;y \leq -1.3 \cdot 10^{+54}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;y \leq -116000000000:\\ \;\;\;\;-2 \cdot b - y \cdot \left(z - b\right)\\ \mathbf{elif}\;y \leq 5.2 \cdot 10^{+29}:\\ \;\;\;\;x + \left(z + \left(t + -2\right) \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 48.1% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(y - 2\right)\\ t_2 := t \cdot \left(b - a\right)\\ \mathbf{if}\;t \leq -1350000000000:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t \leq 7.5 \cdot 10^{-263}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 4.4 \cdot 10^{-224}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;t \leq 300:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* b (- y 2.0))) (t_2 (* t (- b a))))
   (if (<= t -1350000000000.0)
     t_2
     (if (<= t 7.5e-263)
       t_1
       (if (<= t 4.4e-224) (* a (- 1.0 t)) (if (<= t 300.0) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = b * (y - 2.0);
	double t_2 = t * (b - a);
	double tmp;
	if (t <= -1350000000000.0) {
		tmp = t_2;
	} else if (t <= 7.5e-263) {
		tmp = t_1;
	} else if (t <= 4.4e-224) {
		tmp = a * (1.0 - t);
	} else if (t <= 300.0) {
		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 * (y - 2.0d0)
    t_2 = t * (b - a)
    if (t <= (-1350000000000.0d0)) then
        tmp = t_2
    else if (t <= 7.5d-263) then
        tmp = t_1
    else if (t <= 4.4d-224) then
        tmp = a * (1.0d0 - t)
    else if (t <= 300.0d0) 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 * (y - 2.0);
	double t_2 = t * (b - a);
	double tmp;
	if (t <= -1350000000000.0) {
		tmp = t_2;
	} else if (t <= 7.5e-263) {
		tmp = t_1;
	} else if (t <= 4.4e-224) {
		tmp = a * (1.0 - t);
	} else if (t <= 300.0) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = b * (y - 2.0)
	t_2 = t * (b - a)
	tmp = 0
	if t <= -1350000000000.0:
		tmp = t_2
	elif t <= 7.5e-263:
		tmp = t_1
	elif t <= 4.4e-224:
		tmp = a * (1.0 - t)
	elif t <= 300.0:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(b * Float64(y - 2.0))
	t_2 = Float64(t * Float64(b - a))
	tmp = 0.0
	if (t <= -1350000000000.0)
		tmp = t_2;
	elseif (t <= 7.5e-263)
		tmp = t_1;
	elseif (t <= 4.4e-224)
		tmp = Float64(a * Float64(1.0 - t));
	elseif (t <= 300.0)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = b * (y - 2.0);
	t_2 = t * (b - a);
	tmp = 0.0;
	if (t <= -1350000000000.0)
		tmp = t_2;
	elseif (t <= 7.5e-263)
		tmp = t_1;
	elseif (t <= 4.4e-224)
		tmp = a * (1.0 - t);
	elseif (t <= 300.0)
		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[(y - 2.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -1350000000000.0], t$95$2, If[LessEqual[t, 7.5e-263], t$95$1, If[LessEqual[t, 4.4e-224], N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 300.0], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b \cdot \left(y - 2\right)\\
t_2 := t \cdot \left(b - a\right)\\
\mathbf{if}\;t \leq -1350000000000:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;t \leq 7.5 \cdot 10^{-263}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq 4.4 \cdot 10^{-224}:\\
\;\;\;\;a \cdot \left(1 - t\right)\\

\mathbf{elif}\;t \leq 300:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -1.35e12 or 300 < t

    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. Add Preprocessing
    3. Taylor expanded in t around inf 72.5%

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

    if -1.35e12 < t < 7.50000000000000044e-263 or 4.4000000000000002e-224 < t < 300

    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. Add Preprocessing
    3. Taylor expanded in b around inf 42.2%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    4. Taylor expanded in t around 0 42.2%

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

    if 7.50000000000000044e-263 < t < 4.4000000000000002e-224

    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. Add Preprocessing
    3. Taylor expanded in a around inf 51.1%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification56.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1350000000000:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;t \leq 7.5 \cdot 10^{-263}:\\ \;\;\;\;b \cdot \left(y - 2\right)\\ \mathbf{elif}\;t \leq 4.4 \cdot 10^{-224}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;t \leq 300:\\ \;\;\;\;b \cdot \left(y - 2\right)\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 86.6% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;b \leq -1.25 \cdot 10^{-16} \lor \neg \left(b \leq 1200000\right):\\ \;\;\;\;\left(x + b \cdot \left(\left(y + t\right) - 2\right)\right) + t\_1\\ \mathbf{else}:\\ \;\;\;\;x + \left(t\_1 - z \cdot \left(y + -1\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t))))
   (if (or (<= b -1.25e-16) (not (<= b 1200000.0)))
     (+ (+ x (* b (- (+ y t) 2.0))) t_1)
     (+ x (- t_1 (* z (+ y -1.0)))))))
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 <= -1.25e-16) || !(b <= 1200000.0)) {
		tmp = (x + (b * ((y + t) - 2.0))) + t_1;
	} else {
		tmp = x + (t_1 - (z * (y + -1.0)));
	}
	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 <= (-1.25d-16)) .or. (.not. (b <= 1200000.0d0))) then
        tmp = (x + (b * ((y + t) - 2.0d0))) + t_1
    else
        tmp = x + (t_1 - (z * (y + (-1.0d0))))
    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 <= -1.25e-16) || !(b <= 1200000.0)) {
		tmp = (x + (b * ((y + t) - 2.0))) + t_1;
	} else {
		tmp = x + (t_1 - (z * (y + -1.0)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	tmp = 0
	if (b <= -1.25e-16) or not (b <= 1200000.0):
		tmp = (x + (b * ((y + t) - 2.0))) + t_1
	else:
		tmp = x + (t_1 - (z * (y + -1.0)))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a * Float64(1.0 - t))
	tmp = 0.0
	if ((b <= -1.25e-16) || !(b <= 1200000.0))
		tmp = Float64(Float64(x + Float64(b * Float64(Float64(y + t) - 2.0))) + t_1);
	else
		tmp = Float64(x + Float64(t_1 - Float64(z * Float64(y + -1.0))));
	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 <= -1.25e-16) || ~((b <= 1200000.0)))
		tmp = (x + (b * ((y + t) - 2.0))) + t_1;
	else
		tmp = x + (t_1 - (z * (y + -1.0)));
	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, -1.25e-16], N[Not[LessEqual[b, 1200000.0]], $MachinePrecision]], N[(N[(x + N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], N[(x + N[(t$95$1 - N[(z * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;b \leq -1.25 \cdot 10^{-16} \lor \neg \left(b \leq 1200000\right):\\
\;\;\;\;\left(x + b \cdot \left(\left(y + t\right) - 2\right)\right) + t\_1\\

\mathbf{else}:\\
\;\;\;\;x + \left(t\_1 - z \cdot \left(y + -1\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.2500000000000001e-16 or 1.2e6 < b

    1. Initial program 94.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 86.5%

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

    if -1.2500000000000001e-16 < b < 1.2e6

    1. Initial program 99.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 90.2%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification88.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.25 \cdot 10^{-16} \lor \neg \left(b \leq 1200000\right):\\ \;\;\;\;\left(x + b \cdot \left(\left(y + t\right) - 2\right)\right) + a \cdot \left(1 - t\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) - z \cdot \left(y + -1\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 85.5% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;a \leq -5.2 \cdot 10^{+27} \lor \neg \left(a \leq 3700000000000\right):\\ \;\;\;\;t\_1 + a \cdot \left(1 - t\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1 + z \cdot \left(1 - y\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* b (- (+ y t) 2.0)))))
   (if (or (<= a -5.2e+27) (not (<= a 3700000000000.0)))
     (+ t_1 (* a (- 1.0 t)))
     (+ t_1 (* z (- 1.0 y))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (b * ((y + t) - 2.0));
	double tmp;
	if ((a <= -5.2e+27) || !(a <= 3700000000000.0)) {
		tmp = t_1 + (a * (1.0 - t));
	} else {
		tmp = 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 = x + (b * ((y + t) - 2.0d0))
    if ((a <= (-5.2d+27)) .or. (.not. (a <= 3700000000000.0d0))) then
        tmp = t_1 + (a * (1.0d0 - t))
    else
        tmp = 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 = x + (b * ((y + t) - 2.0));
	double tmp;
	if ((a <= -5.2e+27) || !(a <= 3700000000000.0)) {
		tmp = t_1 + (a * (1.0 - t));
	} else {
		tmp = t_1 + (z * (1.0 - y));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (b * ((y + t) - 2.0))
	tmp = 0
	if (a <= -5.2e+27) or not (a <= 3700000000000.0):
		tmp = t_1 + (a * (1.0 - t))
	else:
		tmp = t_1 + (z * (1.0 - y))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(b * Float64(Float64(y + t) - 2.0)))
	tmp = 0.0
	if ((a <= -5.2e+27) || !(a <= 3700000000000.0))
		tmp = Float64(t_1 + Float64(a * Float64(1.0 - t)));
	else
		tmp = 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 = x + (b * ((y + t) - 2.0));
	tmp = 0.0;
	if ((a <= -5.2e+27) || ~((a <= 3700000000000.0)))
		tmp = t_1 + (a * (1.0 - t));
	else
		tmp = t_1 + (z * (1.0 - y));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[a, -5.2e+27], N[Not[LessEqual[a, 3700000000000.0]], $MachinePrecision]], N[(t$95$1 + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t$95$1 + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;a \leq -5.2 \cdot 10^{+27} \lor \neg \left(a \leq 3700000000000\right):\\
\;\;\;\;t\_1 + a \cdot \left(1 - t\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1 + z \cdot \left(1 - y\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -5.20000000000000018e27 or 3.7e12 < a

    1. Initial program 93.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 85.3%

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

    if -5.20000000000000018e27 < a < 3.7e12

    1. Initial program 99.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 96.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification91.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -5.2 \cdot 10^{+27} \lor \neg \left(a \leq 3700000000000\right):\\ \;\;\;\;\left(x + b \cdot \left(\left(y + t\right) - 2\right)\right) + a \cdot \left(1 - t\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x + b \cdot \left(\left(y + t\right) - 2\right)\right) + z \cdot \left(1 - y\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 15: 86.4% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -2.2 \cdot 10^{+25} \lor \neg \left(a \leq 4100000000000\right):\\ \;\;\;\;a + \left(x + \left(t \cdot \left(b - a\right) - b \cdot \left(2 - y\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x + b \cdot \left(\left(y + t\right) - 2\right)\right) + z \cdot \left(1 - y\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= a -2.2e+25) (not (<= a 4100000000000.0)))
   (+ a (+ x (- (* t (- b a)) (* b (- 2.0 y)))))
   (+ (+ x (* b (- (+ y t) 2.0))) (* z (- 1.0 y)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -2.2e+25) || !(a <= 4100000000000.0)) {
		tmp = a + (x + ((t * (b - a)) - (b * (2.0 - y))));
	} else {
		tmp = (x + (b * ((y + t) - 2.0))) + (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) :: tmp
    if ((a <= (-2.2d+25)) .or. (.not. (a <= 4100000000000.0d0))) then
        tmp = a + (x + ((t * (b - a)) - (b * (2.0d0 - y))))
    else
        tmp = (x + (b * ((y + t) - 2.0d0))) + (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 tmp;
	if ((a <= -2.2e+25) || !(a <= 4100000000000.0)) {
		tmp = a + (x + ((t * (b - a)) - (b * (2.0 - y))));
	} else {
		tmp = (x + (b * ((y + t) - 2.0))) + (z * (1.0 - y));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (a <= -2.2e+25) or not (a <= 4100000000000.0):
		tmp = a + (x + ((t * (b - a)) - (b * (2.0 - y))))
	else:
		tmp = (x + (b * ((y + t) - 2.0))) + (z * (1.0 - y))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((a <= -2.2e+25) || !(a <= 4100000000000.0))
		tmp = Float64(a + Float64(x + Float64(Float64(t * Float64(b - a)) - Float64(b * Float64(2.0 - y)))));
	else
		tmp = Float64(Float64(x + Float64(b * Float64(Float64(y + t) - 2.0))) + Float64(z * Float64(1.0 - y)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((a <= -2.2e+25) || ~((a <= 4100000000000.0)))
		tmp = a + (x + ((t * (b - a)) - (b * (2.0 - y))));
	else
		tmp = (x + (b * ((y + t) - 2.0))) + (z * (1.0 - y));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[a, -2.2e+25], N[Not[LessEqual[a, 4100000000000.0]], $MachinePrecision]], N[(a + N[(x + N[(N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision] - N[(b * N[(2.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x + N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -2.2 \cdot 10^{+25} \lor \neg \left(a \leq 4100000000000\right):\\
\;\;\;\;a + \left(x + \left(t \cdot \left(b - a\right) - b \cdot \left(2 - y\right)\right)\right)\\

\mathbf{else}:\\
\;\;\;\;\left(x + b \cdot \left(\left(y + t\right) - 2\right)\right) + z \cdot \left(1 - y\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -2.2000000000000001e25 or 4.1e12 < a

    1. Initial program 93.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in t around 0 94.0%

      \[\leadsto \color{blue}{\left(x + \left(b \cdot \left(y - 2\right) + t \cdot \left(b - a\right)\right)\right) - \left(-1 \cdot a + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in z around 0 86.2%

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

    if -2.2000000000000001e25 < a < 4.1e12

    1. Initial program 99.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 96.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification91.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -2.2 \cdot 10^{+25} \lor \neg \left(a \leq 4100000000000\right):\\ \;\;\;\;a + \left(x + \left(t \cdot \left(b - a\right) - b \cdot \left(2 - y\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x + b \cdot \left(\left(y + t\right) - 2\right)\right) + z \cdot \left(1 - y\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 16: 26.1% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1350000000000:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;t \leq -1.2 \cdot 10^{-186}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 9.5 \cdot 10^{-276}:\\ \;\;\;\;-2 \cdot b\\ \mathbf{elif}\;t \leq 4.5 \cdot 10^{+27}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;t \cdot b\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -1350000000000.0)
   (* t b)
   (if (<= t -1.2e-186)
     x
     (if (<= t 9.5e-276) (* -2.0 b) (if (<= t 4.5e+27) x (* t b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1350000000000.0) {
		tmp = t * b;
	} else if (t <= -1.2e-186) {
		tmp = x;
	} else if (t <= 9.5e-276) {
		tmp = -2.0 * b;
	} else if (t <= 4.5e+27) {
		tmp = x;
	} 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 <= (-1350000000000.0d0)) then
        tmp = t * b
    else if (t <= (-1.2d-186)) then
        tmp = x
    else if (t <= 9.5d-276) then
        tmp = (-2.0d0) * b
    else if (t <= 4.5d+27) then
        tmp = x
    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 <= -1350000000000.0) {
		tmp = t * b;
	} else if (t <= -1.2e-186) {
		tmp = x;
	} else if (t <= 9.5e-276) {
		tmp = -2.0 * b;
	} else if (t <= 4.5e+27) {
		tmp = x;
	} else {
		tmp = t * b;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -1350000000000.0:
		tmp = t * b
	elif t <= -1.2e-186:
		tmp = x
	elif t <= 9.5e-276:
		tmp = -2.0 * b
	elif t <= 4.5e+27:
		tmp = x
	else:
		tmp = t * b
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -1350000000000.0)
		tmp = Float64(t * b);
	elseif (t <= -1.2e-186)
		tmp = x;
	elseif (t <= 9.5e-276)
		tmp = Float64(-2.0 * b);
	elseif (t <= 4.5e+27)
		tmp = x;
	else
		tmp = Float64(t * b);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -1350000000000.0)
		tmp = t * b;
	elseif (t <= -1.2e-186)
		tmp = x;
	elseif (t <= 9.5e-276)
		tmp = -2.0 * b;
	elseif (t <= 4.5e+27)
		tmp = x;
	else
		tmp = t * b;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -1350000000000.0], N[(t * b), $MachinePrecision], If[LessEqual[t, -1.2e-186], x, If[LessEqual[t, 9.5e-276], N[(-2.0 * b), $MachinePrecision], If[LessEqual[t, 4.5e+27], x, N[(t * b), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1350000000000:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;t \leq -1.2 \cdot 10^{-186}:\\
\;\;\;\;x\\

\mathbf{elif}\;t \leq 9.5 \cdot 10^{-276}:\\
\;\;\;\;-2 \cdot b\\

\mathbf{elif}\;t \leq 4.5 \cdot 10^{+27}:\\
\;\;\;\;x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -1.35e12 or 4.4999999999999999e27 < t

    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. Add Preprocessing
    3. Taylor expanded in t around inf 73.7%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]
    4. Taylor expanded in b around inf 42.6%

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

    if -1.35e12 < t < -1.20000000000000002e-186 or 9.49999999999999929e-276 < t < 4.4999999999999999e27

    1. Initial program 99.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 25.9%

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

    if -1.20000000000000002e-186 < t < 9.49999999999999929e-276

    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. Add Preprocessing
    3. Taylor expanded in b around inf 53.3%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    4. Taylor expanded in t around 0 53.3%

      \[\leadsto \color{blue}{b \cdot \left(y - 2\right)} \]
    5. Taylor expanded in y around 0 30.7%

      \[\leadsto \color{blue}{-2 \cdot b} \]
    6. Step-by-step derivation
      1. *-commutative30.7%

        \[\leadsto \color{blue}{b \cdot -2} \]
    7. Simplified30.7%

      \[\leadsto \color{blue}{b \cdot -2} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification34.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1350000000000:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;t \leq -1.2 \cdot 10^{-186}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 9.5 \cdot 10^{-276}:\\ \;\;\;\;-2 \cdot b\\ \mathbf{elif}\;t \leq 4.5 \cdot 10^{+27}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;t \cdot b\\ \end{array} \]
  5. Add Preprocessing

Alternative 17: 68.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(t + -2\right) \cdot b\\ \mathbf{if}\;y \leq -195000000000 \lor \neg \left(y \leq 1000000\right):\\ \;\;\;\;t\_1 - y \cdot \left(z - b\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(z + t\_1\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* (+ t -2.0) b)))
   (if (or (<= y -195000000000.0) (not (<= y 1000000.0)))
     (- t_1 (* y (- z b)))
     (+ x (+ z t_1)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (t + -2.0) * b;
	double tmp;
	if ((y <= -195000000000.0) || !(y <= 1000000.0)) {
		tmp = t_1 - (y * (z - b));
	} else {
		tmp = x + (z + 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 + (-2.0d0)) * b
    if ((y <= (-195000000000.0d0)) .or. (.not. (y <= 1000000.0d0))) then
        tmp = t_1 - (y * (z - b))
    else
        tmp = x + (z + 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 + -2.0) * b;
	double tmp;
	if ((y <= -195000000000.0) || !(y <= 1000000.0)) {
		tmp = t_1 - (y * (z - b));
	} else {
		tmp = x + (z + t_1);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (t + -2.0) * b
	tmp = 0
	if (y <= -195000000000.0) or not (y <= 1000000.0):
		tmp = t_1 - (y * (z - b))
	else:
		tmp = x + (z + t_1)
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(t + -2.0) * b)
	tmp = 0.0
	if ((y <= -195000000000.0) || !(y <= 1000000.0))
		tmp = Float64(t_1 - Float64(y * Float64(z - b)));
	else
		tmp = Float64(x + Float64(z + t_1));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (t + -2.0) * b;
	tmp = 0.0;
	if ((y <= -195000000000.0) || ~((y <= 1000000.0)))
		tmp = t_1 - (y * (z - b));
	else
		tmp = x + (z + t_1);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(t + -2.0), $MachinePrecision] * b), $MachinePrecision]}, If[Or[LessEqual[y, -195000000000.0], N[Not[LessEqual[y, 1000000.0]], $MachinePrecision]], N[(t$95$1 - N[(y * N[(z - b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(z + t$95$1), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(t + -2\right) \cdot b\\
\mathbf{if}\;y \leq -195000000000 \lor \neg \left(y \leq 1000000\right):\\
\;\;\;\;t\_1 - y \cdot \left(z - b\right)\\

\mathbf{else}:\\
\;\;\;\;x + \left(z + t\_1\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.95e11 or 1e6 < y

    1. Initial program 92.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 77.3%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg77.3%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in77.3%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified77.3%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in y around -inf 76.4%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot \left(z + -1 \cdot b\right)\right) + b \cdot \left(t - 2\right)} \]
    7. Step-by-step derivation
      1. +-commutative76.4%

        \[\leadsto \color{blue}{b \cdot \left(t - 2\right) + -1 \cdot \left(y \cdot \left(z + -1 \cdot b\right)\right)} \]
      2. mul-1-neg76.4%

        \[\leadsto b \cdot \left(t - 2\right) + \color{blue}{\left(-y \cdot \left(z + -1 \cdot b\right)\right)} \]
      3. unsub-neg76.4%

        \[\leadsto \color{blue}{b \cdot \left(t - 2\right) - y \cdot \left(z + -1 \cdot b\right)} \]
      4. sub-neg76.4%

        \[\leadsto b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - y \cdot \left(z + -1 \cdot b\right) \]
      5. metadata-eval76.4%

        \[\leadsto b \cdot \left(t + \color{blue}{-2}\right) - y \cdot \left(z + -1 \cdot b\right) \]
      6. mul-1-neg76.4%

        \[\leadsto b \cdot \left(t + -2\right) - y \cdot \left(z + \color{blue}{\left(-b\right)}\right) \]
      7. unsub-neg76.4%

        \[\leadsto b \cdot \left(t + -2\right) - y \cdot \color{blue}{\left(z - b\right)} \]
    8. Simplified76.4%

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

    if -1.95e11 < y < 1e6

    1. Initial program 99.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 73.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in y around 0 73.2%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    5. Step-by-step derivation
      1. neg-mul-173.2%

        \[\leadsto \left(x + b \cdot \left(t - 2\right)\right) - \color{blue}{\left(-z\right)} \]
      2. associate--l+73.2%

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

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

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

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification74.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -195000000000 \lor \neg \left(y \leq 1000000\right):\\ \;\;\;\;\left(t + -2\right) \cdot b - y \cdot \left(z - b\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(z + \left(t + -2\right) \cdot b\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 18: 68.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(t + -2\right) \cdot b\\ \mathbf{if}\;y \leq -2600000000:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right) - y \cdot z\\ \mathbf{elif}\;y \leq 12500000:\\ \;\;\;\;x + \left(z + t\_1\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1 - y \cdot \left(z - b\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* (+ t -2.0) b)))
   (if (<= y -2600000000.0)
     (- (* b (- (+ y t) 2.0)) (* y z))
     (if (<= y 12500000.0) (+ x (+ z t_1)) (- t_1 (* y (- z b)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (t + -2.0) * b;
	double tmp;
	if (y <= -2600000000.0) {
		tmp = (b * ((y + t) - 2.0)) - (y * z);
	} else if (y <= 12500000.0) {
		tmp = x + (z + t_1);
	} else {
		tmp = t_1 - (y * (z - 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) :: t_1
    real(8) :: tmp
    t_1 = (t + (-2.0d0)) * b
    if (y <= (-2600000000.0d0)) then
        tmp = (b * ((y + t) - 2.0d0)) - (y * z)
    else if (y <= 12500000.0d0) then
        tmp = x + (z + t_1)
    else
        tmp = t_1 - (y * (z - b))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (t + -2.0) * b;
	double tmp;
	if (y <= -2600000000.0) {
		tmp = (b * ((y + t) - 2.0)) - (y * z);
	} else if (y <= 12500000.0) {
		tmp = x + (z + t_1);
	} else {
		tmp = t_1 - (y * (z - b));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (t + -2.0) * b
	tmp = 0
	if y <= -2600000000.0:
		tmp = (b * ((y + t) - 2.0)) - (y * z)
	elif y <= 12500000.0:
		tmp = x + (z + t_1)
	else:
		tmp = t_1 - (y * (z - b))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(t + -2.0) * b)
	tmp = 0.0
	if (y <= -2600000000.0)
		tmp = Float64(Float64(b * Float64(Float64(y + t) - 2.0)) - Float64(y * z));
	elseif (y <= 12500000.0)
		tmp = Float64(x + Float64(z + t_1));
	else
		tmp = Float64(t_1 - Float64(y * Float64(z - b)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (t + -2.0) * b;
	tmp = 0.0;
	if (y <= -2600000000.0)
		tmp = (b * ((y + t) - 2.0)) - (y * z);
	elseif (y <= 12500000.0)
		tmp = x + (z + t_1);
	else
		tmp = t_1 - (y * (z - b));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(t + -2.0), $MachinePrecision] * b), $MachinePrecision]}, If[LessEqual[y, -2600000000.0], N[(N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision] - N[(y * z), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 12500000.0], N[(x + N[(z + t$95$1), $MachinePrecision]), $MachinePrecision], N[(t$95$1 - N[(y * N[(z - b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(t + -2\right) \cdot b\\
\mathbf{if}\;y \leq -2600000000:\\
\;\;\;\;b \cdot \left(\left(y + t\right) - 2\right) - y \cdot z\\

\mathbf{elif}\;y \leq 12500000:\\
\;\;\;\;x + \left(z + t\_1\right)\\

\mathbf{else}:\\
\;\;\;\;t\_1 - y \cdot \left(z - b\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -2.6e9

    1. Initial program 94.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 86.9%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg86.9%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in86.9%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified86.9%

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

    if -2.6e9 < y < 1.25e7

    1. Initial program 99.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 73.3%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in y around 0 73.2%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(t - 2\right)\right) - -1 \cdot z} \]
    5. Step-by-step derivation
      1. neg-mul-173.2%

        \[\leadsto \left(x + b \cdot \left(t - 2\right)\right) - \color{blue}{\left(-z\right)} \]
      2. associate--l+73.2%

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

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

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

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

    if 1.25e7 < y

    1. Initial program 91.5%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 68.8%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg68.8%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in68.8%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified68.8%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in y around -inf 70.6%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot \left(z + -1 \cdot b\right)\right) + b \cdot \left(t - 2\right)} \]
    7. Step-by-step derivation
      1. +-commutative70.6%

        \[\leadsto \color{blue}{b \cdot \left(t - 2\right) + -1 \cdot \left(y \cdot \left(z + -1 \cdot b\right)\right)} \]
      2. mul-1-neg70.6%

        \[\leadsto b \cdot \left(t - 2\right) + \color{blue}{\left(-y \cdot \left(z + -1 \cdot b\right)\right)} \]
      3. unsub-neg70.6%

        \[\leadsto \color{blue}{b \cdot \left(t - 2\right) - y \cdot \left(z + -1 \cdot b\right)} \]
      4. sub-neg70.6%

        \[\leadsto b \cdot \color{blue}{\left(t + \left(-2\right)\right)} - y \cdot \left(z + -1 \cdot b\right) \]
      5. metadata-eval70.6%

        \[\leadsto b \cdot \left(t + \color{blue}{-2}\right) - y \cdot \left(z + -1 \cdot b\right) \]
      6. mul-1-neg70.6%

        \[\leadsto b \cdot \left(t + -2\right) - y \cdot \left(z + \color{blue}{\left(-b\right)}\right) \]
      7. unsub-neg70.6%

        \[\leadsto b \cdot \left(t + -2\right) - y \cdot \color{blue}{\left(z - b\right)} \]
    8. Simplified70.6%

      \[\leadsto \color{blue}{b \cdot \left(t + -2\right) - y \cdot \left(z - b\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification75.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2600000000:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right) - y \cdot z\\ \mathbf{elif}\;y \leq 12500000:\\ \;\;\;\;x + \left(z + \left(t + -2\right) \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;\left(t + -2\right) \cdot b - y \cdot \left(z - b\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 19: 36.2% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;a \leq -8 \cdot 10^{+40}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;a \leq -1.75 \cdot 10^{-193}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;a \leq 1.5 \cdot 10^{-23}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t))))
   (if (<= a -8e+40)
     t_1
     (if (<= a -1.75e-193) (* y b) (if (<= a 1.5e-23) (* t b) 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 <= -8e+40) {
		tmp = t_1;
	} else if (a <= -1.75e-193) {
		tmp = y * b;
	} else if (a <= 1.5e-23) {
		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 = a * (1.0d0 - t)
    if (a <= (-8d+40)) then
        tmp = t_1
    else if (a <= (-1.75d-193)) then
        tmp = y * b
    else if (a <= 1.5d-23) 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 = a * (1.0 - t);
	double tmp;
	if (a <= -8e+40) {
		tmp = t_1;
	} else if (a <= -1.75e-193) {
		tmp = y * b;
	} else if (a <= 1.5e-23) {
		tmp = t * b;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	tmp = 0
	if a <= -8e+40:
		tmp = t_1
	elif a <= -1.75e-193:
		tmp = y * b
	elif a <= 1.5e-23:
		tmp = t * b
	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 <= -8e+40)
		tmp = t_1;
	elseif (a <= -1.75e-193)
		tmp = Float64(y * b);
	elseif (a <= 1.5e-23)
		tmp = Float64(t * b);
	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 <= -8e+40)
		tmp = t_1;
	elseif (a <= -1.75e-193)
		tmp = y * b;
	elseif (a <= 1.5e-23)
		tmp = t * b;
	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, -8e+40], t$95$1, If[LessEqual[a, -1.75e-193], N[(y * b), $MachinePrecision], If[LessEqual[a, 1.5e-23], N[(t * b), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;a \leq -8 \cdot 10^{+40}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;a \leq -1.75 \cdot 10^{-193}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;a \leq 1.5 \cdot 10^{-23}:\\
\;\;\;\;t \cdot b\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if a < -8.00000000000000024e40 or 1.50000000000000001e-23 < a

    1. Initial program 93.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 52.7%

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

    if -8.00000000000000024e40 < a < -1.75000000000000002e-193

    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. Add Preprocessing
    3. Taylor expanded in b around inf 51.8%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    4. Taylor expanded in y around inf 31.8%

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

    if -1.75000000000000002e-193 < a < 1.50000000000000001e-23

    1. Initial program 98.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 29.2%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]
    4. Taylor expanded in b around inf 29.1%

      \[\leadsto \color{blue}{b \cdot t} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification40.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -8 \cdot 10^{+40}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;a \leq -1.75 \cdot 10^{-193}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;a \leq 1.5 \cdot 10^{-23}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 20: 39.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;a \leq -9.2 \cdot 10^{+107}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;a \leq -2.15 \cdot 10^{-193}:\\ \;\;\;\;b \cdot \left(y - 2\right)\\ \mathbf{elif}\;a \leq 4.9 \cdot 10^{+61}:\\ \;\;\;\;b \cdot \left(t - 2\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t))))
   (if (<= a -9.2e+107)
     t_1
     (if (<= a -2.15e-193)
       (* b (- y 2.0))
       (if (<= a 4.9e+61) (* b (- t 2.0)) 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 <= -9.2e+107) {
		tmp = t_1;
	} else if (a <= -2.15e-193) {
		tmp = b * (y - 2.0);
	} else if (a <= 4.9e+61) {
		tmp = b * (t - 2.0);
	} 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 <= (-9.2d+107)) then
        tmp = t_1
    else if (a <= (-2.15d-193)) then
        tmp = b * (y - 2.0d0)
    else if (a <= 4.9d+61) then
        tmp = b * (t - 2.0d0)
    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 <= -9.2e+107) {
		tmp = t_1;
	} else if (a <= -2.15e-193) {
		tmp = b * (y - 2.0);
	} else if (a <= 4.9e+61) {
		tmp = b * (t - 2.0);
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	tmp = 0
	if a <= -9.2e+107:
		tmp = t_1
	elif a <= -2.15e-193:
		tmp = b * (y - 2.0)
	elif a <= 4.9e+61:
		tmp = b * (t - 2.0)
	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 <= -9.2e+107)
		tmp = t_1;
	elseif (a <= -2.15e-193)
		tmp = Float64(b * Float64(y - 2.0));
	elseif (a <= 4.9e+61)
		tmp = Float64(b * Float64(t - 2.0));
	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 <= -9.2e+107)
		tmp = t_1;
	elseif (a <= -2.15e-193)
		tmp = b * (y - 2.0);
	elseif (a <= 4.9e+61)
		tmp = b * (t - 2.0);
	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, -9.2e+107], t$95$1, If[LessEqual[a, -2.15e-193], N[(b * N[(y - 2.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[a, 4.9e+61], N[(b * N[(t - 2.0), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;a \leq -9.2 \cdot 10^{+107}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;a \leq -2.15 \cdot 10^{-193}:\\
\;\;\;\;b \cdot \left(y - 2\right)\\

\mathbf{elif}\;a \leq 4.9 \cdot 10^{+61}:\\
\;\;\;\;b \cdot \left(t - 2\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if a < -9.2000000000000001e107 or 4.90000000000000025e61 < a

    1. Initial program 92.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 65.5%

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

    if -9.2000000000000001e107 < a < -2.1500000000000001e-193

    1. Initial program 98.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 48.9%

      \[\leadsto \color{blue}{b \cdot \left(\left(t + y\right) - 2\right)} \]
    4. Taylor expanded in t around 0 35.6%

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

    if -2.1500000000000001e-193 < a < 4.90000000000000025e61

    1. Initial program 98.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 65.4%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg65.4%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in65.4%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified65.4%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in y around 0 37.6%

      \[\leadsto \color{blue}{b \cdot \left(t - 2\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification45.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -9.2 \cdot 10^{+107}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;a \leq -2.15 \cdot 10^{-193}:\\ \;\;\;\;b \cdot \left(y - 2\right)\\ \mathbf{elif}\;a \leq 4.9 \cdot 10^{+61}:\\ \;\;\;\;b \cdot \left(t - 2\right)\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 21: 40.2% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;a \leq -1.8 \cdot 10^{+43} \lor \neg \left(a \leq 1.3 \cdot 10^{+62}\right):\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(t - 2\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= a -1.8e+43) (not (<= a 1.3e+62)))
   (* a (- 1.0 t))
   (* b (- t 2.0))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((a <= -1.8e+43) || !(a <= 1.3e+62)) {
		tmp = a * (1.0 - t);
	} else {
		tmp = b * (t - 2.0);
	}
	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 <= (-1.8d+43)) .or. (.not. (a <= 1.3d+62))) then
        tmp = a * (1.0d0 - t)
    else
        tmp = b * (t - 2.0d0)
    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 <= -1.8e+43) || !(a <= 1.3e+62)) {
		tmp = a * (1.0 - t);
	} else {
		tmp = b * (t - 2.0);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (a <= -1.8e+43) or not (a <= 1.3e+62):
		tmp = a * (1.0 - t)
	else:
		tmp = b * (t - 2.0)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((a <= -1.8e+43) || !(a <= 1.3e+62))
		tmp = Float64(a * Float64(1.0 - t));
	else
		tmp = Float64(b * Float64(t - 2.0));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((a <= -1.8e+43) || ~((a <= 1.3e+62)))
		tmp = a * (1.0 - t);
	else
		tmp = b * (t - 2.0);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[a, -1.8e+43], N[Not[LessEqual[a, 1.3e+62]], $MachinePrecision]], N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision], N[(b * N[(t - 2.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;a \leq -1.8 \cdot 10^{+43} \lor \neg \left(a \leq 1.3 \cdot 10^{+62}\right):\\
\;\;\;\;a \cdot \left(1 - t\right)\\

\mathbf{else}:\\
\;\;\;\;b \cdot \left(t - 2\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < -1.80000000000000005e43 or 1.29999999999999992e62 < a

    1. Initial program 92.7%

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

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

    if -1.80000000000000005e43 < a < 1.29999999999999992e62

    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. Add Preprocessing
    3. Taylor expanded in y around inf 67.7%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg67.7%

        \[\leadsto \color{blue}{\left(-y \cdot z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in67.7%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified67.7%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in y around 0 33.4%

      \[\leadsto \color{blue}{b \cdot \left(t - 2\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification43.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1.8 \cdot 10^{+43} \lor \neg \left(a \leq 1.3 \cdot 10^{+62}\right):\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(t - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 22: 50.9% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.4 \cdot 10^{+114} \lor \neg \left(y \leq 5.2 \cdot 10^{+33}\right):\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= y -1.4e+114) (not (<= y 5.2e+33))) (* y (- b z)) (* t (- b a))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((y <= -1.4e+114) || !(y <= 5.2e+33)) {
		tmp = y * (b - z);
	} else {
		tmp = t * (b - 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 ((y <= (-1.4d+114)) .or. (.not. (y <= 5.2d+33))) then
        tmp = y * (b - z)
    else
        tmp = t * (b - 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 ((y <= -1.4e+114) || !(y <= 5.2e+33)) {
		tmp = y * (b - z);
	} else {
		tmp = t * (b - a);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (y <= -1.4e+114) or not (y <= 5.2e+33):
		tmp = y * (b - z)
	else:
		tmp = t * (b - a)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((y <= -1.4e+114) || !(y <= 5.2e+33))
		tmp = Float64(y * Float64(b - z));
	else
		tmp = Float64(t * Float64(b - a));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((y <= -1.4e+114) || ~((y <= 5.2e+33)))
		tmp = y * (b - z);
	else
		tmp = t * (b - a);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[y, -1.4e+114], N[Not[LessEqual[y, 5.2e+33]], $MachinePrecision]], N[(y * N[(b - z), $MachinePrecision]), $MachinePrecision], N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.4 \cdot 10^{+114} \lor \neg \left(y \leq 5.2 \cdot 10^{+33}\right):\\
\;\;\;\;y \cdot \left(b - z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.4e114 or 5.1999999999999995e33 < y

    1. Initial program 92.0%

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

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

    if -1.4e114 < y < 5.1999999999999995e33

    1. Initial program 98.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 40.2%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification53.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.4 \cdot 10^{+114} \lor \neg \left(y \leq 5.2 \cdot 10^{+33}\right):\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 23: 20.1% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.15 \cdot 10^{+91}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 2.6 \cdot 10^{-24}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -1.15e+91) x (if (<= x 2.6e-24) z x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -1.15e+91) {
		tmp = x;
	} else if (x <= 2.6e-24) {
		tmp = z;
	} 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 <= (-1.15d+91)) then
        tmp = x
    else if (x <= 2.6d-24) then
        tmp = z
    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 <= -1.15e+91) {
		tmp = x;
	} else if (x <= 2.6e-24) {
		tmp = z;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -1.15e+91:
		tmp = x
	elif x <= 2.6e-24:
		tmp = z
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -1.15e+91)
		tmp = x;
	elseif (x <= 2.6e-24)
		tmp = z;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -1.15e+91)
		tmp = x;
	elseif (x <= 2.6e-24)
		tmp = z;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -1.15e+91], x, If[LessEqual[x, 2.6e-24], z, x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.15 \cdot 10^{+91}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 2.6 \cdot 10^{-24}:\\
\;\;\;\;z\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -1.14999999999999996e91 or 2.6e-24 < x

    1. Initial program 95.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 26.9%

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

    if -1.14999999999999996e91 < x < 2.6e-24

    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. Add Preprocessing
    3. Taylor expanded in z around inf 32.5%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    4. Taylor expanded in y around 0 18.2%

      \[\leadsto \color{blue}{z} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification21.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.15 \cdot 10^{+91}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 2.6 \cdot 10^{-24}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 24: 14.8% accurate, 21.0× speedup?

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

\\
x
\end{array}
Derivation
  1. Initial program 96.5%

    \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
  2. Add Preprocessing
  3. Taylor expanded in x around inf 13.6%

    \[\leadsto \color{blue}{x} \]
  4. Final simplification13.6%

    \[\leadsto x \]
  5. Add Preprocessing

Reproduce

?
herbie shell --seed 2024034 
(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)))