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

Percentage Accurate: 95.0% → 98.8%
Time: 16.4s
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: 95.0% 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: 98.8% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(\left(x + z \cdot \left(1 - y\right)\right) + a \cdot \left(1 - t\right)\right) + b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;t\_1 \leq \infty:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;z + \left(x + b \cdot \left(\left(y + t\right) - \left(2 + y \cdot \frac{z}{b}\right)\right)\right)\\ \end{array} \end{array} \]
(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
     (+ z (+ x (* b (- (+ y t) (+ 2.0 (* y (/ z b))))))))))
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 = z + (x + (b * ((y + t) - (2.0 + (y * (z / b))))));
	}
	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 = z + (x + (b * ((y + t) - (2.0 + (y * (z / b))))));
	}
	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 = z + (x + (b * ((y + t) - (2.0 + (y * (z / b))))))
	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(z + Float64(x + Float64(b * Float64(Float64(y + t) - Float64(2.0 + Float64(y * Float64(z / b)))))));
	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 = z + (x + (b * ((y + t) - (2.0 + (y * (z / b))))));
	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[(z + N[(x + N[(b * N[(N[(y + t), $MachinePrecision] - N[(2.0 + N[(y * N[(z / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $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}:\\
\;\;\;\;z + \left(x + b \cdot \left(\left(y + t\right) - \left(2 + y \cdot \frac{z}{b}\right)\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (+.f64 (-.f64 (-.f64 x (*.f64 (-.f64 y #s(literal 1 binary64)) z)) (*.f64 (-.f64 t #s(literal 1 binary64)) a)) (*.f64 (-.f64 (+.f64 y t) #s(literal 2 binary64)) 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 #s(literal 1 binary64)) z)) (*.f64 (-.f64 t #s(literal 1 binary64)) a)) (*.f64 (-.f64 (+.f64 y t) #s(literal 2 binary64)) 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 0 41.7%

      \[\leadsto \color{blue}{\left(x + \left(b \cdot \left(t - 2\right) + y \cdot \left(b - z\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right)} \]
    4. Taylor expanded in b around inf 25.0%

      \[\leadsto \left(x + \color{blue}{b \cdot \left(\left(t + \left(y + -1 \cdot \frac{y \cdot z}{b}\right)\right) - 2\right)}\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
    5. Step-by-step derivation
      1. sub-neg25.0%

        \[\leadsto \left(x + b \cdot \color{blue}{\left(\left(t + \left(y + -1 \cdot \frac{y \cdot z}{b}\right)\right) + \left(-2\right)\right)}\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      2. +-commutative25.0%

        \[\leadsto \left(x + b \cdot \left(\color{blue}{\left(\left(y + -1 \cdot \frac{y \cdot z}{b}\right) + t\right)} + \left(-2\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      3. metadata-eval25.0%

        \[\leadsto \left(x + b \cdot \left(\left(\left(y + -1 \cdot \frac{y \cdot z}{b}\right) + t\right) + \color{blue}{-2}\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      4. associate-+l+25.0%

        \[\leadsto \left(x + b \cdot \color{blue}{\left(\left(y + -1 \cdot \frac{y \cdot z}{b}\right) + \left(t + -2\right)\right)}\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      5. mul-1-neg25.0%

        \[\leadsto \left(x + b \cdot \left(\left(y + \color{blue}{\left(-\frac{y \cdot z}{b}\right)}\right) + \left(t + -2\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      6. unsub-neg25.0%

        \[\leadsto \left(x + b \cdot \left(\color{blue}{\left(y - \frac{y \cdot z}{b}\right)} + \left(t + -2\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      7. associate-/l*50.0%

        \[\leadsto \left(x + b \cdot \left(\left(y - \color{blue}{y \cdot \frac{z}{b}}\right) + \left(t + -2\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
    6. Simplified50.0%

      \[\leadsto \left(x + \color{blue}{b \cdot \left(\left(y - y \cdot \frac{z}{b}\right) + \left(t + -2\right)\right)}\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
    7. Taylor expanded in a around 0 50.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - \left(2 + \frac{y \cdot z}{b}\right)\right)\right) - -1 \cdot z} \]
    8. Simplified75.0%

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

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

Alternative 2: 97.4% 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 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. Step-by-step derivation
    1. +-commutative95.3%

      \[\leadsto \color{blue}{\left(\left(y + t\right) - 2\right) \cdot b + \left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right)} \]
    2. fma-define97.3%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\left(y + t\right) - 2, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right)} \]
    3. associate--l+97.3%

      \[\leadsto \mathsf{fma}\left(\color{blue}{y + \left(t - 2\right)}, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    4. sub-neg97.3%

      \[\leadsto \mathsf{fma}\left(y + \color{blue}{\left(t + \left(-2\right)\right)}, b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    5. metadata-eval97.3%

      \[\leadsto \mathsf{fma}\left(y + \left(t + \color{blue}{-2}\right), b, \left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) \]
    6. sub-neg97.3%

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, \color{blue}{\left(x - \left(y - 1\right) \cdot z\right) + \left(-\left(t - 1\right) \cdot a\right)}\right) \]
    7. associate-+l-97.3%

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

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

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

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

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

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

      \[\leadsto \mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \left(t + \color{blue}{-1}\right) \cdot a\right)\right) \]
  3. Simplified97.6%

    \[\leadsto \color{blue}{\mathsf{fma}\left(y + \left(t + -2\right), b, x - \mathsf{fma}\left(y + -1, z, \left(t + -1\right) \cdot a\right)\right)} \]
  4. Add Preprocessing
  5. Final simplification97.6%

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

Alternative 3: 49.8% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ t_2 := z \cdot \left(1 - y\right)\\ t_3 := b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;b \leq -8.2 \cdot 10^{+64}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq -16500000000000:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -4.4 \cdot 10^{-46}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;b \leq -4.6 \cdot 10^{-98}:\\ \;\;\;\;x\\ \mathbf{elif}\;b \leq -1.05 \cdot 10^{-246}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq -5.5 \cdot 10^{-295}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 1.55 \cdot 10^{-52}:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_3\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t)))
        (t_2 (* z (- 1.0 y)))
        (t_3 (* b (- (+ y t) 2.0))))
   (if (<= b -8.2e+64)
     t_3
     (if (<= b -16500000000000.0)
       t_1
       (if (<= b -4.4e-46)
         (* y (- b z))
         (if (<= b -4.6e-98)
           x
           (if (<= b -1.05e-246)
             t_2
             (if (<= b -5.5e-295) t_1 (if (<= b 1.55e-52) 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 = z * (1.0 - y);
	double t_3 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -8.2e+64) {
		tmp = t_3;
	} else if (b <= -16500000000000.0) {
		tmp = t_1;
	} else if (b <= -4.4e-46) {
		tmp = y * (b - z);
	} else if (b <= -4.6e-98) {
		tmp = x;
	} else if (b <= -1.05e-246) {
		tmp = t_2;
	} else if (b <= -5.5e-295) {
		tmp = t_1;
	} else if (b <= 1.55e-52) {
		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 = z * (1.0d0 - y)
    t_3 = b * ((y + t) - 2.0d0)
    if (b <= (-8.2d+64)) then
        tmp = t_3
    else if (b <= (-16500000000000.0d0)) then
        tmp = t_1
    else if (b <= (-4.4d-46)) then
        tmp = y * (b - z)
    else if (b <= (-4.6d-98)) then
        tmp = x
    else if (b <= (-1.05d-246)) then
        tmp = t_2
    else if (b <= (-5.5d-295)) then
        tmp = t_1
    else if (b <= 1.55d-52) 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 = z * (1.0 - y);
	double t_3 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -8.2e+64) {
		tmp = t_3;
	} else if (b <= -16500000000000.0) {
		tmp = t_1;
	} else if (b <= -4.4e-46) {
		tmp = y * (b - z);
	} else if (b <= -4.6e-98) {
		tmp = x;
	} else if (b <= -1.05e-246) {
		tmp = t_2;
	} else if (b <= -5.5e-295) {
		tmp = t_1;
	} else if (b <= 1.55e-52) {
		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 = z * (1.0 - y)
	t_3 = b * ((y + t) - 2.0)
	tmp = 0
	if b <= -8.2e+64:
		tmp = t_3
	elif b <= -16500000000000.0:
		tmp = t_1
	elif b <= -4.4e-46:
		tmp = y * (b - z)
	elif b <= -4.6e-98:
		tmp = x
	elif b <= -1.05e-246:
		tmp = t_2
	elif b <= -5.5e-295:
		tmp = t_1
	elif b <= 1.55e-52:
		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(z * Float64(1.0 - y))
	t_3 = Float64(b * Float64(Float64(y + t) - 2.0))
	tmp = 0.0
	if (b <= -8.2e+64)
		tmp = t_3;
	elseif (b <= -16500000000000.0)
		tmp = t_1;
	elseif (b <= -4.4e-46)
		tmp = Float64(y * Float64(b - z));
	elseif (b <= -4.6e-98)
		tmp = x;
	elseif (b <= -1.05e-246)
		tmp = t_2;
	elseif (b <= -5.5e-295)
		tmp = t_1;
	elseif (b <= 1.55e-52)
		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 = z * (1.0 - y);
	t_3 = b * ((y + t) - 2.0);
	tmp = 0.0;
	if (b <= -8.2e+64)
		tmp = t_3;
	elseif (b <= -16500000000000.0)
		tmp = t_1;
	elseif (b <= -4.4e-46)
		tmp = y * (b - z);
	elseif (b <= -4.6e-98)
		tmp = x;
	elseif (b <= -1.05e-246)
		tmp = t_2;
	elseif (b <= -5.5e-295)
		tmp = t_1;
	elseif (b <= 1.55e-52)
		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[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -8.2e+64], t$95$3, If[LessEqual[b, -16500000000000.0], t$95$1, If[LessEqual[b, -4.4e-46], N[(y * N[(b - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, -4.6e-98], x, If[LessEqual[b, -1.05e-246], t$95$2, If[LessEqual[b, -5.5e-295], t$95$1, If[LessEqual[b, 1.55e-52], t$95$2, t$95$3]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
t_2 := z \cdot \left(1 - y\right)\\
t_3 := b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;b \leq -8.2 \cdot 10^{+64}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq -16500000000000:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -4.4 \cdot 10^{-46}:\\
\;\;\;\;y \cdot \left(b - z\right)\\

\mathbf{elif}\;b \leq -4.6 \cdot 10^{-98}:\\
\;\;\;\;x\\

\mathbf{elif}\;b \leq -1.05 \cdot 10^{-246}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq -5.5 \cdot 10^{-295}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq 1.55 \cdot 10^{-52}:\\
\;\;\;\;t\_2\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if b < -8.19999999999999956e64 or 1.5499999999999999e-52 < b

    1. Initial program 91.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 64.1%

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

    if -8.19999999999999956e64 < b < -1.65e13 or -1.04999999999999997e-246 < b < -5.5e-295

    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 inf 69.2%

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

    if -1.65e13 < b < -4.4000000000000002e-46

    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 58.1%

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

    if -4.4000000000000002e-46 < b < -4.60000000000000001e-98

    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 48.5%

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

    if -4.60000000000000001e-98 < b < -1.04999999999999997e-246 or -5.5e-295 < b < 1.5499999999999999e-52

    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 53.6%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification60.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -8.2 \cdot 10^{+64}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -16500000000000:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -4.4 \cdot 10^{-46}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;b \leq -4.6 \cdot 10^{-98}:\\ \;\;\;\;x\\ \mathbf{elif}\;b \leq -1.05 \cdot 10^{-246}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq -5.5 \cdot 10^{-295}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 1.55 \cdot 10^{-52}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 36.7% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(y - 2\right)\\ t_2 := a \cdot \left(1 - t\right)\\ t_3 := y \cdot \left(-z\right)\\ \mathbf{if}\;a \leq -2.3 \cdot 10^{+58}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;a \leq -2.95 \cdot 10^{-12}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;a \leq -3.1 \cdot 10^{-21}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq -7.2 \cdot 10^{-248}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;a \leq 1.55 \cdot 10^{-203}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq 2.9 \cdot 10^{-144}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;a \leq 280000000:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* b (- y 2.0))) (t_2 (* a (- 1.0 t))) (t_3 (* y (- z))))
   (if (<= a -2.3e+58)
     t_2
     (if (<= a -2.95e-12)
       t_1
       (if (<= a -3.1e-21)
         x
         (if (<= a -7.2e-248)
           t_3
           (if (<= a 1.55e-203)
             x
             (if (<= a 2.9e-144) t_3 (if (<= a 280000000.0) 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 = a * (1.0 - t);
	double t_3 = y * -z;
	double tmp;
	if (a <= -2.3e+58) {
		tmp = t_2;
	} else if (a <= -2.95e-12) {
		tmp = t_1;
	} else if (a <= -3.1e-21) {
		tmp = x;
	} else if (a <= -7.2e-248) {
		tmp = t_3;
	} else if (a <= 1.55e-203) {
		tmp = x;
	} else if (a <= 2.9e-144) {
		tmp = t_3;
	} else if (a <= 280000000.0) {
		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) :: t_3
    real(8) :: tmp
    t_1 = b * (y - 2.0d0)
    t_2 = a * (1.0d0 - t)
    t_3 = y * -z
    if (a <= (-2.3d+58)) then
        tmp = t_2
    else if (a <= (-2.95d-12)) then
        tmp = t_1
    else if (a <= (-3.1d-21)) then
        tmp = x
    else if (a <= (-7.2d-248)) then
        tmp = t_3
    else if (a <= 1.55d-203) then
        tmp = x
    else if (a <= 2.9d-144) then
        tmp = t_3
    else if (a <= 280000000.0d0) 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 = a * (1.0 - t);
	double t_3 = y * -z;
	double tmp;
	if (a <= -2.3e+58) {
		tmp = t_2;
	} else if (a <= -2.95e-12) {
		tmp = t_1;
	} else if (a <= -3.1e-21) {
		tmp = x;
	} else if (a <= -7.2e-248) {
		tmp = t_3;
	} else if (a <= 1.55e-203) {
		tmp = x;
	} else if (a <= 2.9e-144) {
		tmp = t_3;
	} else if (a <= 280000000.0) {
		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 = a * (1.0 - t)
	t_3 = y * -z
	tmp = 0
	if a <= -2.3e+58:
		tmp = t_2
	elif a <= -2.95e-12:
		tmp = t_1
	elif a <= -3.1e-21:
		tmp = x
	elif a <= -7.2e-248:
		tmp = t_3
	elif a <= 1.55e-203:
		tmp = x
	elif a <= 2.9e-144:
		tmp = t_3
	elif a <= 280000000.0:
		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(a * Float64(1.0 - t))
	t_3 = Float64(y * Float64(-z))
	tmp = 0.0
	if (a <= -2.3e+58)
		tmp = t_2;
	elseif (a <= -2.95e-12)
		tmp = t_1;
	elseif (a <= -3.1e-21)
		tmp = x;
	elseif (a <= -7.2e-248)
		tmp = t_3;
	elseif (a <= 1.55e-203)
		tmp = x;
	elseif (a <= 2.9e-144)
		tmp = t_3;
	elseif (a <= 280000000.0)
		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 = a * (1.0 - t);
	t_3 = y * -z;
	tmp = 0.0;
	if (a <= -2.3e+58)
		tmp = t_2;
	elseif (a <= -2.95e-12)
		tmp = t_1;
	elseif (a <= -3.1e-21)
		tmp = x;
	elseif (a <= -7.2e-248)
		tmp = t_3;
	elseif (a <= 1.55e-203)
		tmp = x;
	elseif (a <= 2.9e-144)
		tmp = t_3;
	elseif (a <= 280000000.0)
		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[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(y * (-z)), $MachinePrecision]}, If[LessEqual[a, -2.3e+58], t$95$2, If[LessEqual[a, -2.95e-12], t$95$1, If[LessEqual[a, -3.1e-21], x, If[LessEqual[a, -7.2e-248], t$95$3, If[LessEqual[a, 1.55e-203], x, If[LessEqual[a, 2.9e-144], t$95$3, If[LessEqual[a, 280000000.0], t$95$1, t$95$2]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b \cdot \left(y - 2\right)\\
t_2 := a \cdot \left(1 - t\right)\\
t_3 := y \cdot \left(-z\right)\\
\mathbf{if}\;a \leq -2.3 \cdot 10^{+58}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;a \leq -2.95 \cdot 10^{-12}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;a \leq -3.1 \cdot 10^{-21}:\\
\;\;\;\;x\\

\mathbf{elif}\;a \leq -7.2 \cdot 10^{-248}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;a \leq 1.55 \cdot 10^{-203}:\\
\;\;\;\;x\\

\mathbf{elif}\;a \leq 2.9 \cdot 10^{-144}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;a \leq 280000000:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if a < -2.30000000000000002e58 or 2.8e8 < a

    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 a around inf 56.3%

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

    if -2.30000000000000002e58 < a < -2.95e-12 or 2.9000000000000002e-144 < a < 2.8e8

    1. Initial program 95.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 61.3%

      \[\leadsto \color{blue}{-1 \cdot \left(a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg61.3%

        \[\leadsto \color{blue}{\left(-a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in61.3%

        \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified61.3%

      \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in t around 0 42.9%

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

    if -2.95e-12 < a < -3.0999999999999998e-21 or -7.19999999999999969e-248 < a < 1.54999999999999989e-203

    1. Initial program 97.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 38.4%

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

    if -3.0999999999999998e-21 < a < -7.19999999999999969e-248 or 1.54999999999999989e-203 < a < 2.9000000000000002e-144

    1. Initial program 96.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 68.3%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 37.6%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    5. Step-by-step derivation
      1. mul-1-neg37.6%

        \[\leadsto \color{blue}{-y \cdot z} \]
      2. distribute-rgt-neg-in37.6%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
    6. Simplified37.6%

      \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification46.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -2.3 \cdot 10^{+58}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;a \leq -2.95 \cdot 10^{-12}:\\ \;\;\;\;b \cdot \left(y - 2\right)\\ \mathbf{elif}\;a \leq -3.1 \cdot 10^{-21}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq -7.2 \cdot 10^{-248}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;a \leq 1.55 \cdot 10^{-203}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq 2.9 \cdot 10^{-144}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;a \leq 280000000:\\ \;\;\;\;b \cdot \left(y - 2\right)\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 46.5% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b \cdot \left(y - 2\right)\\ t_2 := t \cdot \left(b - a\right)\\ \mathbf{if}\;t \leq -3.2 \cdot 10^{+18}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t \leq -9 \cdot 10^{-135}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq -1.65 \cdot 10^{-152}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;t \leq -9.8 \cdot 10^{-166}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;t \leq -2.05 \cdot 10^{-265}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 3.5 \cdot 10^{+37}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* b (- y 2.0))) (t_2 (* t (- b a))))
   (if (<= t -3.2e+18)
     t_2
     (if (<= t -9e-135)
       t_1
       (if (<= t -1.65e-152)
         (* y (- z))
         (if (<= t -9.8e-166)
           (* y b)
           (if (<= t -2.05e-265) x (if (<= t 3.5e+37) 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 <= -3.2e+18) {
		tmp = t_2;
	} else if (t <= -9e-135) {
		tmp = t_1;
	} else if (t <= -1.65e-152) {
		tmp = y * -z;
	} else if (t <= -9.8e-166) {
		tmp = y * b;
	} else if (t <= -2.05e-265) {
		tmp = x;
	} else if (t <= 3.5e+37) {
		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 <= (-3.2d+18)) then
        tmp = t_2
    else if (t <= (-9d-135)) then
        tmp = t_1
    else if (t <= (-1.65d-152)) then
        tmp = y * -z
    else if (t <= (-9.8d-166)) then
        tmp = y * b
    else if (t <= (-2.05d-265)) then
        tmp = x
    else if (t <= 3.5d+37) 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 <= -3.2e+18) {
		tmp = t_2;
	} else if (t <= -9e-135) {
		tmp = t_1;
	} else if (t <= -1.65e-152) {
		tmp = y * -z;
	} else if (t <= -9.8e-166) {
		tmp = y * b;
	} else if (t <= -2.05e-265) {
		tmp = x;
	} else if (t <= 3.5e+37) {
		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 <= -3.2e+18:
		tmp = t_2
	elif t <= -9e-135:
		tmp = t_1
	elif t <= -1.65e-152:
		tmp = y * -z
	elif t <= -9.8e-166:
		tmp = y * b
	elif t <= -2.05e-265:
		tmp = x
	elif t <= 3.5e+37:
		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 <= -3.2e+18)
		tmp = t_2;
	elseif (t <= -9e-135)
		tmp = t_1;
	elseif (t <= -1.65e-152)
		tmp = Float64(y * Float64(-z));
	elseif (t <= -9.8e-166)
		tmp = Float64(y * b);
	elseif (t <= -2.05e-265)
		tmp = x;
	elseif (t <= 3.5e+37)
		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 <= -3.2e+18)
		tmp = t_2;
	elseif (t <= -9e-135)
		tmp = t_1;
	elseif (t <= -1.65e-152)
		tmp = y * -z;
	elseif (t <= -9.8e-166)
		tmp = y * b;
	elseif (t <= -2.05e-265)
		tmp = x;
	elseif (t <= 3.5e+37)
		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, -3.2e+18], t$95$2, If[LessEqual[t, -9e-135], t$95$1, If[LessEqual[t, -1.65e-152], N[(y * (-z)), $MachinePrecision], If[LessEqual[t, -9.8e-166], N[(y * b), $MachinePrecision], If[LessEqual[t, -2.05e-265], x, If[LessEqual[t, 3.5e+37], 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 -3.2 \cdot 10^{+18}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;t \leq -9 \cdot 10^{-135}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq -1.65 \cdot 10^{-152}:\\
\;\;\;\;y \cdot \left(-z\right)\\

\mathbf{elif}\;t \leq -9.8 \cdot 10^{-166}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;t \leq -2.05 \cdot 10^{-265}:\\
\;\;\;\;x\\

\mathbf{elif}\;t \leq 3.5 \cdot 10^{+37}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if t < -3.2e18 or 3.5e37 < t

    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 t around inf 66.5%

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

    if -3.2e18 < t < -8.99999999999999975e-135 or -2.05e-265 < t < 3.5e37

    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 t around inf 40.8%

      \[\leadsto \color{blue}{-1 \cdot \left(a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg40.8%

        \[\leadsto \color{blue}{\left(-a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in40.8%

        \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified40.8%

      \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in t around 0 37.8%

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

    if -8.99999999999999975e-135 < t < -1.64999999999999999e-152

    1. Initial program 87.5%

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

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

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    5. Step-by-step derivation
      1. mul-1-neg63.6%

        \[\leadsto \color{blue}{-y \cdot z} \]
      2. distribute-rgt-neg-in63.6%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
    6. Simplified63.6%

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

    if -1.64999999999999999e-152 < t < -9.7999999999999998e-166

    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 100.0%

      \[\leadsto \color{blue}{-1 \cdot \left(a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg100.0%

        \[\leadsto \color{blue}{\left(-a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in100.0%

        \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified100.0%

      \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in t around 0 100.0%

      \[\leadsto \color{blue}{b \cdot \left(y - 2\right)} \]
    7. Taylor expanded in y around inf 100.0%

      \[\leadsto \color{blue}{b \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \color{blue}{y \cdot b} \]
    9. Simplified100.0%

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

    if -9.7999999999999998e-166 < t < -2.05e-265

    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 38.1%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification51.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -3.2 \cdot 10^{+18}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;t \leq -9 \cdot 10^{-135}:\\ \;\;\;\;b \cdot \left(y - 2\right)\\ \mathbf{elif}\;t \leq -1.65 \cdot 10^{-152}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;t \leq -9.8 \cdot 10^{-166}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;t \leq -2.05 \cdot 10^{-265}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 3.5 \cdot 10^{+37}:\\ \;\;\;\;b \cdot \left(y - 2\right)\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 64.1% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + a \cdot \left(1 - t\right)\\ t_2 := x - b \cdot \left(2 - \left(y + t\right)\right)\\ t_3 := x + z \cdot \left(1 - y\right)\\ \mathbf{if}\;b \leq -1.6 \cdot 10^{+66}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq -1.9 \cdot 10^{-81}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -8.8 \cdot 10^{-250}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq -5.6 \cdot 10^{-297}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 1.65 \cdot 10^{-51}:\\ \;\;\;\;t\_3\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* a (- 1.0 t))))
        (t_2 (- x (* b (- 2.0 (+ y t)))))
        (t_3 (+ x (* z (- 1.0 y)))))
   (if (<= b -1.6e+66)
     t_2
     (if (<= b -1.9e-81)
       t_1
       (if (<= b -8.8e-250)
         t_3
         (if (<= b -5.6e-297) t_1 (if (<= b 1.65e-51) t_3 t_2)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * (1.0 - t));
	double t_2 = x - (b * (2.0 - (y + t)));
	double t_3 = x + (z * (1.0 - y));
	double tmp;
	if (b <= -1.6e+66) {
		tmp = t_2;
	} else if (b <= -1.9e-81) {
		tmp = t_1;
	} else if (b <= -8.8e-250) {
		tmp = t_3;
	} else if (b <= -5.6e-297) {
		tmp = t_1;
	} else if (b <= 1.65e-51) {
		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 = x + (a * (1.0d0 - t))
    t_2 = x - (b * (2.0d0 - (y + t)))
    t_3 = x + (z * (1.0d0 - y))
    if (b <= (-1.6d+66)) then
        tmp = t_2
    else if (b <= (-1.9d-81)) then
        tmp = t_1
    else if (b <= (-8.8d-250)) then
        tmp = t_3
    else if (b <= (-5.6d-297)) then
        tmp = t_1
    else if (b <= 1.65d-51) 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 = x + (a * (1.0 - t));
	double t_2 = x - (b * (2.0 - (y + t)));
	double t_3 = x + (z * (1.0 - y));
	double tmp;
	if (b <= -1.6e+66) {
		tmp = t_2;
	} else if (b <= -1.9e-81) {
		tmp = t_1;
	} else if (b <= -8.8e-250) {
		tmp = t_3;
	} else if (b <= -5.6e-297) {
		tmp = t_1;
	} else if (b <= 1.65e-51) {
		tmp = t_3;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (a * (1.0 - t))
	t_2 = x - (b * (2.0 - (y + t)))
	t_3 = x + (z * (1.0 - y))
	tmp = 0
	if b <= -1.6e+66:
		tmp = t_2
	elif b <= -1.9e-81:
		tmp = t_1
	elif b <= -8.8e-250:
		tmp = t_3
	elif b <= -5.6e-297:
		tmp = t_1
	elif b <= 1.65e-51:
		tmp = t_3
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(a * Float64(1.0 - t)))
	t_2 = Float64(x - Float64(b * Float64(2.0 - Float64(y + t))))
	t_3 = Float64(x + Float64(z * Float64(1.0 - y)))
	tmp = 0.0
	if (b <= -1.6e+66)
		tmp = t_2;
	elseif (b <= -1.9e-81)
		tmp = t_1;
	elseif (b <= -8.8e-250)
		tmp = t_3;
	elseif (b <= -5.6e-297)
		tmp = t_1;
	elseif (b <= 1.65e-51)
		tmp = t_3;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (a * (1.0 - t));
	t_2 = x - (b * (2.0 - (y + t)));
	t_3 = x + (z * (1.0 - y));
	tmp = 0.0;
	if (b <= -1.6e+66)
		tmp = t_2;
	elseif (b <= -1.9e-81)
		tmp = t_1;
	elseif (b <= -8.8e-250)
		tmp = t_3;
	elseif (b <= -5.6e-297)
		tmp = t_1;
	elseif (b <= 1.65e-51)
		tmp = t_3;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1.6e+66], t$95$2, If[LessEqual[b, -1.9e-81], t$95$1, If[LessEqual[b, -8.8e-250], t$95$3, If[LessEqual[b, -5.6e-297], t$95$1, If[LessEqual[b, 1.65e-51], t$95$3, t$95$2]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + a \cdot \left(1 - t\right)\\
t_2 := x - b \cdot \left(2 - \left(y + t\right)\right)\\
t_3 := x + z \cdot \left(1 - y\right)\\
\mathbf{if}\;b \leq -1.6 \cdot 10^{+66}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq -1.9 \cdot 10^{-81}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -8.8 \cdot 10^{-250}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq -5.6 \cdot 10^{-297}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq 1.65 \cdot 10^{-51}:\\
\;\;\;\;t\_3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -1.6e66 or 1.64999999999999986e-51 < b

    1. Initial program 91.0%

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

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in z around 0 69.5%

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

    if -1.6e66 < b < -1.8999999999999999e-81 or -8.8e-250 < b < -5.59999999999999968e-297

    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 0 82.2%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in a around inf 70.7%

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

    if -1.8999999999999999e-81 < b < -8.8e-250 or -5.59999999999999968e-297 < b < 1.64999999999999986e-51

    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 0 76.9%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in b around 0 73.3%

      \[\leadsto \color{blue}{x - z \cdot \left(y - 1\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification71.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.6 \cdot 10^{+66}:\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{elif}\;b \leq -1.9 \cdot 10^{-81}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -8.8 \cdot 10^{-250}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq -5.6 \cdot 10^{-297}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 1.65 \cdot 10^{-51}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 61.9% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + a \cdot \left(1 - t\right)\\ t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\ t_3 := x + z \cdot \left(1 - y\right)\\ \mathbf{if}\;b \leq -4.5 \cdot 10^{+67}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq -9 \cdot 10^{-81}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -8.2 \cdot 10^{-247}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;b \leq -2.15 \cdot 10^{-291}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 1.95 \cdot 10^{+71}:\\ \;\;\;\;t\_3\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* a (- 1.0 t))))
        (t_2 (* b (- (+ y t) 2.0)))
        (t_3 (+ x (* z (- 1.0 y)))))
   (if (<= b -4.5e+67)
     t_2
     (if (<= b -9e-81)
       t_1
       (if (<= b -8.2e-247)
         t_3
         (if (<= b -2.15e-291) t_1 (if (<= b 1.95e+71) t_3 t_2)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * (1.0 - t));
	double t_2 = b * ((y + t) - 2.0);
	double t_3 = x + (z * (1.0 - y));
	double tmp;
	if (b <= -4.5e+67) {
		tmp = t_2;
	} else if (b <= -9e-81) {
		tmp = t_1;
	} else if (b <= -8.2e-247) {
		tmp = t_3;
	} else if (b <= -2.15e-291) {
		tmp = t_1;
	} else if (b <= 1.95e+71) {
		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 = x + (a * (1.0d0 - t))
    t_2 = b * ((y + t) - 2.0d0)
    t_3 = x + (z * (1.0d0 - y))
    if (b <= (-4.5d+67)) then
        tmp = t_2
    else if (b <= (-9d-81)) then
        tmp = t_1
    else if (b <= (-8.2d-247)) then
        tmp = t_3
    else if (b <= (-2.15d-291)) then
        tmp = t_1
    else if (b <= 1.95d+71) 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 = x + (a * (1.0 - t));
	double t_2 = b * ((y + t) - 2.0);
	double t_3 = x + (z * (1.0 - y));
	double tmp;
	if (b <= -4.5e+67) {
		tmp = t_2;
	} else if (b <= -9e-81) {
		tmp = t_1;
	} else if (b <= -8.2e-247) {
		tmp = t_3;
	} else if (b <= -2.15e-291) {
		tmp = t_1;
	} else if (b <= 1.95e+71) {
		tmp = t_3;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (a * (1.0 - t))
	t_2 = b * ((y + t) - 2.0)
	t_3 = x + (z * (1.0 - y))
	tmp = 0
	if b <= -4.5e+67:
		tmp = t_2
	elif b <= -9e-81:
		tmp = t_1
	elif b <= -8.2e-247:
		tmp = t_3
	elif b <= -2.15e-291:
		tmp = t_1
	elif b <= 1.95e+71:
		tmp = t_3
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(a * Float64(1.0 - t)))
	t_2 = Float64(b * Float64(Float64(y + t) - 2.0))
	t_3 = Float64(x + Float64(z * Float64(1.0 - y)))
	tmp = 0.0
	if (b <= -4.5e+67)
		tmp = t_2;
	elseif (b <= -9e-81)
		tmp = t_1;
	elseif (b <= -8.2e-247)
		tmp = t_3;
	elseif (b <= -2.15e-291)
		tmp = t_1;
	elseif (b <= 1.95e+71)
		tmp = t_3;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (a * (1.0 - t));
	t_2 = b * ((y + t) - 2.0);
	t_3 = x + (z * (1.0 - y));
	tmp = 0.0;
	if (b <= -4.5e+67)
		tmp = t_2;
	elseif (b <= -9e-81)
		tmp = t_1;
	elseif (b <= -8.2e-247)
		tmp = t_3;
	elseif (b <= -2.15e-291)
		tmp = t_1;
	elseif (b <= 1.95e+71)
		tmp = t_3;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(x + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -4.5e+67], t$95$2, If[LessEqual[b, -9e-81], t$95$1, If[LessEqual[b, -8.2e-247], t$95$3, If[LessEqual[b, -2.15e-291], t$95$1, If[LessEqual[b, 1.95e+71], t$95$3, t$95$2]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + a \cdot \left(1 - t\right)\\
t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\
t_3 := x + z \cdot \left(1 - y\right)\\
\mathbf{if}\;b \leq -4.5 \cdot 10^{+67}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq -9 \cdot 10^{-81}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -8.2 \cdot 10^{-247}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;b \leq -2.15 \cdot 10^{-291}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq 1.95 \cdot 10^{+71}:\\
\;\;\;\;t\_3\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -4.4999999999999998e67 or 1.9500000000000001e71 < b

    1. Initial program 90.2%

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

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

    if -4.4999999999999998e67 < b < -9.000000000000001e-81 or -8.1999999999999997e-247 < b < -2.15000000000000018e-291

    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 0 82.2%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in a around inf 70.7%

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

    if -9.000000000000001e-81 < b < -8.1999999999999997e-247 or -2.15000000000000018e-291 < b < 1.9500000000000001e71

    1. Initial program 98.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 75.8%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in b around 0 65.0%

      \[\leadsto \color{blue}{x - z \cdot \left(y - 1\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification69.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -4.5 \cdot 10^{+67}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq -9 \cdot 10^{-81}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq -8.2 \cdot 10^{-247}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq -2.15 \cdot 10^{-291}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 1.95 \cdot 10^{+71}:\\ \;\;\;\;x + z \cdot \left(1 - y\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 28.4% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(-z\right)\\ \mathbf{if}\;y \leq -2.95 \cdot 10^{+29}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 1.7 \cdot 10^{-251}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 3 \cdot 10^{-45}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 2.7 \cdot 10^{+78}:\\ \;\;\;\;t \cdot \left(-a\right)\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+95}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* y (- z))))
   (if (<= y -2.95e+29)
     t_1
     (if (<= y 1.7e-251)
       (* t b)
       (if (<= y 3e-45)
         x
         (if (<= y 2.7e+78) (* t (- a)) (if (<= y 4e+95) (* t b) t_1)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * -z;
	double tmp;
	if (y <= -2.95e+29) {
		tmp = t_1;
	} else if (y <= 1.7e-251) {
		tmp = t * b;
	} else if (y <= 3e-45) {
		tmp = x;
	} else if (y <= 2.7e+78) {
		tmp = t * -a;
	} else if (y <= 4e+95) {
		tmp = t * b;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: tmp
    t_1 = y * -z
    if (y <= (-2.95d+29)) then
        tmp = t_1
    else if (y <= 1.7d-251) then
        tmp = t * b
    else if (y <= 3d-45) then
        tmp = x
    else if (y <= 2.7d+78) then
        tmp = t * -a
    else if (y <= 4d+95) then
        tmp = t * b
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * -z;
	double tmp;
	if (y <= -2.95e+29) {
		tmp = t_1;
	} else if (y <= 1.7e-251) {
		tmp = t * b;
	} else if (y <= 3e-45) {
		tmp = x;
	} else if (y <= 2.7e+78) {
		tmp = t * -a;
	} else if (y <= 4e+95) {
		tmp = t * b;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = y * -z
	tmp = 0
	if y <= -2.95e+29:
		tmp = t_1
	elif y <= 1.7e-251:
		tmp = t * b
	elif y <= 3e-45:
		tmp = x
	elif y <= 2.7e+78:
		tmp = t * -a
	elif y <= 4e+95:
		tmp = t * b
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(y * Float64(-z))
	tmp = 0.0
	if (y <= -2.95e+29)
		tmp = t_1;
	elseif (y <= 1.7e-251)
		tmp = Float64(t * b);
	elseif (y <= 3e-45)
		tmp = x;
	elseif (y <= 2.7e+78)
		tmp = Float64(t * Float64(-a));
	elseif (y <= 4e+95)
		tmp = Float64(t * b);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = y * -z;
	tmp = 0.0;
	if (y <= -2.95e+29)
		tmp = t_1;
	elseif (y <= 1.7e-251)
		tmp = t * b;
	elseif (y <= 3e-45)
		tmp = x;
	elseif (y <= 2.7e+78)
		tmp = t * -a;
	elseif (y <= 4e+95)
		tmp = t * b;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y * (-z)), $MachinePrecision]}, If[LessEqual[y, -2.95e+29], t$95$1, If[LessEqual[y, 1.7e-251], N[(t * b), $MachinePrecision], If[LessEqual[y, 3e-45], x, If[LessEqual[y, 2.7e+78], N[(t * (-a)), $MachinePrecision], If[LessEqual[y, 4e+95], N[(t * b), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \left(-z\right)\\
\mathbf{if}\;y \leq -2.95 \cdot 10^{+29}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 1.7 \cdot 10^{-251}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;y \leq 3 \cdot 10^{-45}:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 2.7 \cdot 10^{+78}:\\
\;\;\;\;t \cdot \left(-a\right)\\

\mathbf{elif}\;y \leq 4 \cdot 10^{+95}:\\
\;\;\;\;t \cdot b\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -2.9499999999999999e29 or 4.00000000000000008e95 < y

    1. Initial program 91.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 70.1%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 50.1%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    5. Step-by-step derivation
      1. mul-1-neg50.1%

        \[\leadsto \color{blue}{-y \cdot z} \]
      2. distribute-rgt-neg-in50.1%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
    6. Simplified50.1%

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

    if -2.9499999999999999e29 < y < 1.70000000000000008e-251 or 2.70000000000000004e78 < y < 4.00000000000000008e95

    1. Initial program 96.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 77.2%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in t around inf 31.2%

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

    if 1.70000000000000008e-251 < y < 3.00000000000000011e-45

    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 36.6%

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

    if 3.00000000000000011e-45 < y < 2.70000000000000004e78

    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 t around inf 43.4%

      \[\leadsto \color{blue}{t \cdot \left(b - a\right)} \]
    4. Taylor expanded in b around 0 33.4%

      \[\leadsto \color{blue}{-1 \cdot \left(a \cdot t\right)} \]
    5. Step-by-step derivation
      1. associate-*r*33.4%

        \[\leadsto \color{blue}{\left(-1 \cdot a\right) \cdot t} \]
      2. mul-1-neg33.4%

        \[\leadsto \color{blue}{\left(-a\right)} \cdot t \]
    6. Simplified33.4%

      \[\leadsto \color{blue}{\left(-a\right) \cdot t} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification39.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.95 \cdot 10^{+29}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;y \leq 1.7 \cdot 10^{-251}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 3 \cdot 10^{-45}:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 2.7 \cdot 10^{+78}:\\ \;\;\;\;t \cdot \left(-a\right)\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+95}:\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 70.7% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(a - z \cdot \left(y + -1\right)\right)\\ t_2 := x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{if}\;b \leq -3.2 \cdot 10^{+74}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq -5.2 \cdot 10^{-247}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -1.75 \cdot 10^{-292}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 2.8 \cdot 10^{+75}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (- a (* z (+ y -1.0))))) (t_2 (- x (* b (- 2.0 (+ y t))))))
   (if (<= b -3.2e+74)
     t_2
     (if (<= b -5.2e-247)
       t_1
       (if (<= b -1.75e-292)
         (+ x (* a (- 1.0 t)))
         (if (<= b 2.8e+75) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a - (z * (y + -1.0)));
	double t_2 = x - (b * (2.0 - (y + t)));
	double tmp;
	if (b <= -3.2e+74) {
		tmp = t_2;
	} else if (b <= -5.2e-247) {
		tmp = t_1;
	} else if (b <= -1.75e-292) {
		tmp = x + (a * (1.0 - t));
	} else if (b <= 2.8e+75) {
		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 = x + (a - (z * (y + (-1.0d0))))
    t_2 = x - (b * (2.0d0 - (y + t)))
    if (b <= (-3.2d+74)) then
        tmp = t_2
    else if (b <= (-5.2d-247)) then
        tmp = t_1
    else if (b <= (-1.75d-292)) then
        tmp = x + (a * (1.0d0 - t))
    else if (b <= 2.8d+75) 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 = x + (a - (z * (y + -1.0)));
	double t_2 = x - (b * (2.0 - (y + t)));
	double tmp;
	if (b <= -3.2e+74) {
		tmp = t_2;
	} else if (b <= -5.2e-247) {
		tmp = t_1;
	} else if (b <= -1.75e-292) {
		tmp = x + (a * (1.0 - t));
	} else if (b <= 2.8e+75) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (a - (z * (y + -1.0)))
	t_2 = x - (b * (2.0 - (y + t)))
	tmp = 0
	if b <= -3.2e+74:
		tmp = t_2
	elif b <= -5.2e-247:
		tmp = t_1
	elif b <= -1.75e-292:
		tmp = x + (a * (1.0 - t))
	elif b <= 2.8e+75:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(a - Float64(z * Float64(y + -1.0))))
	t_2 = Float64(x - Float64(b * Float64(2.0 - Float64(y + t))))
	tmp = 0.0
	if (b <= -3.2e+74)
		tmp = t_2;
	elseif (b <= -5.2e-247)
		tmp = t_1;
	elseif (b <= -1.75e-292)
		tmp = Float64(x + Float64(a * Float64(1.0 - t)));
	elseif (b <= 2.8e+75)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (a - (z * (y + -1.0)));
	t_2 = x - (b * (2.0 - (y + t)));
	tmp = 0.0;
	if (b <= -3.2e+74)
		tmp = t_2;
	elseif (b <= -5.2e-247)
		tmp = t_1;
	elseif (b <= -1.75e-292)
		tmp = x + (a * (1.0 - t));
	elseif (b <= 2.8e+75)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(a - N[(z * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -3.2e+74], t$95$2, If[LessEqual[b, -5.2e-247], t$95$1, If[LessEqual[b, -1.75e-292], N[(x + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 2.8e+75], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(a - z \cdot \left(y + -1\right)\right)\\
t_2 := x - b \cdot \left(2 - \left(y + t\right)\right)\\
\mathbf{if}\;b \leq -3.2 \cdot 10^{+74}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq -5.2 \cdot 10^{-247}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq -1.75 \cdot 10^{-292}:\\
\;\;\;\;x + a \cdot \left(1 - t\right)\\

\mathbf{elif}\;b \leq 2.8 \cdot 10^{+75}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -3.19999999999999995e74 or 2.80000000000000012e75 < b

    1. Initial program 90.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 85.2%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in z around 0 77.6%

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

    if -3.19999999999999995e74 < b < -5.2e-247 or -1.75e-292 < b < 2.80000000000000012e75

    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 0 85.6%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in t around 0 70.6%

      \[\leadsto x - \color{blue}{\left(-1 \cdot a + z \cdot \left(y - 1\right)\right)} \]
    5. Step-by-step derivation
      1. +-commutative70.6%

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

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

        \[\leadsto x - \left(z \cdot \left(y + \color{blue}{-1}\right) + -1 \cdot a\right) \]
      4. neg-mul-170.6%

        \[\leadsto x - \left(z \cdot \left(y + -1\right) + \color{blue}{\left(-a\right)}\right) \]
      5. unsub-neg70.6%

        \[\leadsto x - \color{blue}{\left(z \cdot \left(y + -1\right) - a\right)} \]
    6. Simplified70.6%

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

    if -5.2e-247 < b < -1.75e-292

    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 0 100.0%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in a around inf 90.0%

      \[\leadsto x - \color{blue}{a \cdot \left(t - 1\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification74.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -3.2 \cdot 10^{+74}:\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{elif}\;b \leq -5.2 \cdot 10^{-247}:\\ \;\;\;\;x + \left(a - z \cdot \left(y + -1\right)\right)\\ \mathbf{elif}\;b \leq -1.75 \cdot 10^{-292}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 2.8 \cdot 10^{+75}:\\ \;\;\;\;x + \left(a - z \cdot \left(y + -1\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 25.6% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -8 \cdot 10^{+123}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -2.4 \cdot 10^{-13}:\\ \;\;\;\;a\\ \mathbf{elif}\;y \leq -2.85 \cdot 10^{-49}:\\ \;\;\;\;-2 \cdot b\\ \mathbf{elif}\;y \leq 3.6 \cdot 10^{-252}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 6.5 \cdot 10^{+35}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;y \cdot b\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= y -8e+123)
   (* y b)
   (if (<= y -2.4e-13)
     a
     (if (<= y -2.85e-49)
       (* -2.0 b)
       (if (<= y 3.6e-252) (* t b) (if (<= y 6.5e+35) x (* y b)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (y <= -8e+123) {
		tmp = y * b;
	} else if (y <= -2.4e-13) {
		tmp = a;
	} else if (y <= -2.85e-49) {
		tmp = -2.0 * b;
	} else if (y <= 3.6e-252) {
		tmp = t * b;
	} else if (y <= 6.5e+35) {
		tmp = x;
	} else {
		tmp = y * b;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (y <= (-8d+123)) then
        tmp = y * b
    else if (y <= (-2.4d-13)) then
        tmp = a
    else if (y <= (-2.85d-49)) then
        tmp = (-2.0d0) * b
    else if (y <= 3.6d-252) then
        tmp = t * b
    else if (y <= 6.5d+35) then
        tmp = x
    else
        tmp = y * b
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (y <= -8e+123) {
		tmp = y * b;
	} else if (y <= -2.4e-13) {
		tmp = a;
	} else if (y <= -2.85e-49) {
		tmp = -2.0 * b;
	} else if (y <= 3.6e-252) {
		tmp = t * b;
	} else if (y <= 6.5e+35) {
		tmp = x;
	} else {
		tmp = y * b;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if y <= -8e+123:
		tmp = y * b
	elif y <= -2.4e-13:
		tmp = a
	elif y <= -2.85e-49:
		tmp = -2.0 * b
	elif y <= 3.6e-252:
		tmp = t * b
	elif y <= 6.5e+35:
		tmp = x
	else:
		tmp = y * b
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (y <= -8e+123)
		tmp = Float64(y * b);
	elseif (y <= -2.4e-13)
		tmp = a;
	elseif (y <= -2.85e-49)
		tmp = Float64(-2.0 * b);
	elseif (y <= 3.6e-252)
		tmp = Float64(t * b);
	elseif (y <= 6.5e+35)
		tmp = x;
	else
		tmp = Float64(y * b);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (y <= -8e+123)
		tmp = y * b;
	elseif (y <= -2.4e-13)
		tmp = a;
	elseif (y <= -2.85e-49)
		tmp = -2.0 * b;
	elseif (y <= 3.6e-252)
		tmp = t * b;
	elseif (y <= 6.5e+35)
		tmp = x;
	else
		tmp = y * b;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[y, -8e+123], N[(y * b), $MachinePrecision], If[LessEqual[y, -2.4e-13], a, If[LessEqual[y, -2.85e-49], N[(-2.0 * b), $MachinePrecision], If[LessEqual[y, 3.6e-252], N[(t * b), $MachinePrecision], If[LessEqual[y, 6.5e+35], x, N[(y * b), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -8 \cdot 10^{+123}:\\
\;\;\;\;y \cdot b\\

\mathbf{elif}\;y \leq -2.4 \cdot 10^{-13}:\\
\;\;\;\;a\\

\mathbf{elif}\;y \leq -2.85 \cdot 10^{-49}:\\
\;\;\;\;-2 \cdot b\\

\mathbf{elif}\;y \leq 3.6 \cdot 10^{-252}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;y \leq 6.5 \cdot 10^{+35}:\\
\;\;\;\;x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 5 regimes
  2. if y < -7.99999999999999982e123 or 6.5000000000000003e35 < 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 t around inf 51.9%

      \[\leadsto \color{blue}{-1 \cdot \left(a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg51.9%

        \[\leadsto \color{blue}{\left(-a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in51.9%

        \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified51.9%

      \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in t around 0 36.7%

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

      \[\leadsto \color{blue}{b \cdot y} \]
    8. Step-by-step derivation
      1. *-commutative36.7%

        \[\leadsto \color{blue}{y \cdot b} \]
    9. Simplified36.7%

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

    if -7.99999999999999982e123 < y < -2.3999999999999999e-13

    1. Initial program 90.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 44.1%

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

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

    if -2.3999999999999999e-13 < y < -2.8500000000000002e-49

    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 90.2%

      \[\leadsto \color{blue}{-1 \cdot \left(a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg90.2%

        \[\leadsto \color{blue}{\left(-a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in90.2%

        \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified90.2%

      \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in t around 0 52.4%

      \[\leadsto \color{blue}{b \cdot \left(y - 2\right)} \]
    7. Taylor expanded in y around 0 51.3%

      \[\leadsto \color{blue}{-2 \cdot b} \]
    8. Step-by-step derivation
      1. *-commutative51.3%

        \[\leadsto \color{blue}{b \cdot -2} \]
    9. Simplified51.3%

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

    if -2.8500000000000002e-49 < y < 3.60000000000000023e-252

    1. Initial program 95.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 72.6%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in t around inf 30.4%

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

    if 3.60000000000000023e-252 < y < 6.5000000000000003e35

    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 31.9%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 5 regimes into one program.
  4. Final simplification33.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -8 \cdot 10^{+123}:\\ \;\;\;\;y \cdot b\\ \mathbf{elif}\;y \leq -2.4 \cdot 10^{-13}:\\ \;\;\;\;a\\ \mathbf{elif}\;y \leq -2.85 \cdot 10^{-49}:\\ \;\;\;\;-2 \cdot b\\ \mathbf{elif}\;y \leq 3.6 \cdot 10^{-252}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 6.5 \cdot 10^{+35}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;y \cdot b\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 59.2% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + a \cdot \left(1 - t\right)\\ t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{if}\;b \leq -2.15 \cdot 10^{+67}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq 1.26 \cdot 10^{-270}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 2 \cdot 10^{-92}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 5.8 \cdot 10^{+75}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (+ x (* a (- 1.0 t)))) (t_2 (* b (- (+ y t) 2.0))))
   (if (<= b -2.15e+67)
     t_2
     (if (<= b 1.26e-270)
       t_1
       (if (<= b 2e-92) (* z (- 1.0 y)) (if (<= b 5.8e+75) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x + (a * (1.0 - t));
	double t_2 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -2.15e+67) {
		tmp = t_2;
	} else if (b <= 1.26e-270) {
		tmp = t_1;
	} else if (b <= 2e-92) {
		tmp = z * (1.0 - y);
	} else if (b <= 5.8e+75) {
		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 = x + (a * (1.0d0 - t))
    t_2 = b * ((y + t) - 2.0d0)
    if (b <= (-2.15d+67)) then
        tmp = t_2
    else if (b <= 1.26d-270) then
        tmp = t_1
    else if (b <= 2d-92) then
        tmp = z * (1.0d0 - y)
    else if (b <= 5.8d+75) 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 = x + (a * (1.0 - t));
	double t_2 = b * ((y + t) - 2.0);
	double tmp;
	if (b <= -2.15e+67) {
		tmp = t_2;
	} else if (b <= 1.26e-270) {
		tmp = t_1;
	} else if (b <= 2e-92) {
		tmp = z * (1.0 - y);
	} else if (b <= 5.8e+75) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x + (a * (1.0 - t))
	t_2 = b * ((y + t) - 2.0)
	tmp = 0
	if b <= -2.15e+67:
		tmp = t_2
	elif b <= 1.26e-270:
		tmp = t_1
	elif b <= 2e-92:
		tmp = z * (1.0 - y)
	elif b <= 5.8e+75:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x + Float64(a * Float64(1.0 - t)))
	t_2 = Float64(b * Float64(Float64(y + t) - 2.0))
	tmp = 0.0
	if (b <= -2.15e+67)
		tmp = t_2;
	elseif (b <= 1.26e-270)
		tmp = t_1;
	elseif (b <= 2e-92)
		tmp = Float64(z * Float64(1.0 - y));
	elseif (b <= 5.8e+75)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x + (a * (1.0 - t));
	t_2 = b * ((y + t) - 2.0);
	tmp = 0.0;
	if (b <= -2.15e+67)
		tmp = t_2;
	elseif (b <= 1.26e-270)
		tmp = t_1;
	elseif (b <= 2e-92)
		tmp = z * (1.0 - y);
	elseif (b <= 5.8e+75)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x + N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(b * N[(N[(y + t), $MachinePrecision] - 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -2.15e+67], t$95$2, If[LessEqual[b, 1.26e-270], t$95$1, If[LessEqual[b, 2e-92], N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 5.8e+75], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + a \cdot \left(1 - t\right)\\
t_2 := b \cdot \left(\left(y + t\right) - 2\right)\\
\mathbf{if}\;b \leq -2.15 \cdot 10^{+67}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;b \leq 1.26 \cdot 10^{-270}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;b \leq 2 \cdot 10^{-92}:\\
\;\;\;\;z \cdot \left(1 - y\right)\\

\mathbf{elif}\;b \leq 5.8 \cdot 10^{+75}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -2.1500000000000001e67 or 5.7999999999999997e75 < b

    1. Initial program 90.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around inf 74.4%

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

    if -2.1500000000000001e67 < b < 1.25999999999999994e-270 or 1.99999999999999998e-92 < b < 5.7999999999999997e75

    1. Initial program 98.4%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 83.6%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in a around inf 54.3%

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

    if 1.25999999999999994e-270 < b < 1.99999999999999998e-92

    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 65.2%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.15 \cdot 10^{+67}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \mathbf{elif}\;b \leq 1.26 \cdot 10^{-270}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 2 \cdot 10^{-92}:\\ \;\;\;\;z \cdot \left(1 - y\right)\\ \mathbf{elif}\;b \leq 5.8 \cdot 10^{+75}:\\ \;\;\;\;x + a \cdot \left(1 - t\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\left(y + t\right) - 2\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 86.4% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;b \leq -4.8 \cdot 10^{-22}:\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + t\_1\\ \mathbf{elif}\;b \leq 3.9 \cdot 10^{-90}:\\ \;\;\;\;x + \left(t\_1 + z \cdot \left(1 - y\right)\right)\\ \mathbf{else}:\\ \;\;\;\;z + \left(x + b \cdot \left(\left(y + t\right) - \left(2 + y \cdot \frac{z}{b}\right)\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t))))
   (if (<= b -4.8e-22)
     (+ (- x (* b (- 2.0 (+ y t)))) t_1)
     (if (<= b 3.9e-90)
       (+ x (+ t_1 (* z (- 1.0 y))))
       (+ z (+ x (* b (- (+ y t) (+ 2.0 (* y (/ z b)))))))))))
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 <= -4.8e-22) {
		tmp = (x - (b * (2.0 - (y + t)))) + t_1;
	} else if (b <= 3.9e-90) {
		tmp = x + (t_1 + (z * (1.0 - y)));
	} else {
		tmp = z + (x + (b * ((y + t) - (2.0 + (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 = a * (1.0d0 - t)
    if (b <= (-4.8d-22)) then
        tmp = (x - (b * (2.0d0 - (y + t)))) + t_1
    else if (b <= 3.9d-90) then
        tmp = x + (t_1 + (z * (1.0d0 - y)))
    else
        tmp = z + (x + (b * ((y + t) - (2.0d0 + (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 = a * (1.0 - t);
	double tmp;
	if (b <= -4.8e-22) {
		tmp = (x - (b * (2.0 - (y + t)))) + t_1;
	} else if (b <= 3.9e-90) {
		tmp = x + (t_1 + (z * (1.0 - y)));
	} else {
		tmp = z + (x + (b * ((y + t) - (2.0 + (y * (z / b))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	tmp = 0
	if b <= -4.8e-22:
		tmp = (x - (b * (2.0 - (y + t)))) + t_1
	elif b <= 3.9e-90:
		tmp = x + (t_1 + (z * (1.0 - y)))
	else:
		tmp = z + (x + (b * ((y + t) - (2.0 + (y * (z / b))))))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a * Float64(1.0 - t))
	tmp = 0.0
	if (b <= -4.8e-22)
		tmp = Float64(Float64(x - Float64(b * Float64(2.0 - Float64(y + t)))) + t_1);
	elseif (b <= 3.9e-90)
		tmp = Float64(x + Float64(t_1 + Float64(z * Float64(1.0 - y))));
	else
		tmp = Float64(z + Float64(x + Float64(b * Float64(Float64(y + t) - Float64(2.0 + Float64(y * Float64(z / b)))))));
	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 <= -4.8e-22)
		tmp = (x - (b * (2.0 - (y + t)))) + t_1;
	elseif (b <= 3.9e-90)
		tmp = x + (t_1 + (z * (1.0 - y)));
	else
		tmp = z + (x + (b * ((y + t) - (2.0 + (y * (z / b))))));
	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[b, -4.8e-22], N[(N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], If[LessEqual[b, 3.9e-90], N[(x + N[(t$95$1 + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(z + N[(x + N[(b * N[(N[(y + t), $MachinePrecision] - N[(2.0 + N[(y * N[(z / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;b \leq -4.8 \cdot 10^{-22}:\\
\;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + t\_1\\

\mathbf{elif}\;b \leq 3.9 \cdot 10^{-90}:\\
\;\;\;\;x + \left(t\_1 + z \cdot \left(1 - y\right)\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -4.80000000000000005e-22

    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 z around 0 87.3%

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

    if -4.80000000000000005e-22 < b < 3.90000000000000005e-90

    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 0 97.1%

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

    if 3.90000000000000005e-90 < b

    1. Initial program 91.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 92.7%

      \[\leadsto \color{blue}{\left(x + \left(b \cdot \left(t - 2\right) + y \cdot \left(b - z\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right)} \]
    4. Taylor expanded in b around inf 93.8%

      \[\leadsto \left(x + \color{blue}{b \cdot \left(\left(t + \left(y + -1 \cdot \frac{y \cdot z}{b}\right)\right) - 2\right)}\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
    5. Step-by-step derivation
      1. sub-neg93.8%

        \[\leadsto \left(x + b \cdot \color{blue}{\left(\left(t + \left(y + -1 \cdot \frac{y \cdot z}{b}\right)\right) + \left(-2\right)\right)}\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      2. +-commutative93.8%

        \[\leadsto \left(x + b \cdot \left(\color{blue}{\left(\left(y + -1 \cdot \frac{y \cdot z}{b}\right) + t\right)} + \left(-2\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      3. metadata-eval93.8%

        \[\leadsto \left(x + b \cdot \left(\left(\left(y + -1 \cdot \frac{y \cdot z}{b}\right) + t\right) + \color{blue}{-2}\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      4. associate-+l+93.8%

        \[\leadsto \left(x + b \cdot \color{blue}{\left(\left(y + -1 \cdot \frac{y \cdot z}{b}\right) + \left(t + -2\right)\right)}\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      5. mul-1-neg93.8%

        \[\leadsto \left(x + b \cdot \left(\left(y + \color{blue}{\left(-\frac{y \cdot z}{b}\right)}\right) + \left(t + -2\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      6. unsub-neg93.8%

        \[\leadsto \left(x + b \cdot \left(\color{blue}{\left(y - \frac{y \cdot z}{b}\right)} + \left(t + -2\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
      7. associate-/l*94.8%

        \[\leadsto \left(x + b \cdot \left(\left(y - \color{blue}{y \cdot \frac{z}{b}}\right) + \left(t + -2\right)\right)\right) - \left(-1 \cdot z + a \cdot \left(t - 1\right)\right) \]
    6. Simplified94.8%

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

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - \left(2 + \frac{y \cdot z}{b}\right)\right)\right) - -1 \cdot z} \]
    8. Simplified84.7%

      \[\leadsto \color{blue}{\left(b \cdot \left(\left(y + t\right) - \left(2 + y \cdot \frac{z}{b}\right)\right) + x\right) - \left(-z\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification90.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -4.8 \cdot 10^{-22}:\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 3.9 \cdot 10^{-90}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \mathbf{else}:\\ \;\;\;\;z + \left(x + b \cdot \left(\left(y + t\right) - \left(2 + y \cdot \frac{z}{b}\right)\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 35.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(-z\right)\\ t_2 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;a \leq -1 \cdot 10^{+41}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;a \leq -4.1 \cdot 10^{-249}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;a \leq 7.7 \cdot 10^{-202}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq 60000000:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* y (- z))) (t_2 (* a (- 1.0 t))))
   (if (<= a -1e+41)
     t_2
     (if (<= a -4.1e-249)
       t_1
       (if (<= a 7.7e-202) x (if (<= a 60000000.0) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * -z;
	double t_2 = a * (1.0 - t);
	double tmp;
	if (a <= -1e+41) {
		tmp = t_2;
	} else if (a <= -4.1e-249) {
		tmp = t_1;
	} else if (a <= 7.7e-202) {
		tmp = x;
	} else if (a <= 60000000.0) {
		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 = y * -z
    t_2 = a * (1.0d0 - t)
    if (a <= (-1d+41)) then
        tmp = t_2
    else if (a <= (-4.1d-249)) then
        tmp = t_1
    else if (a <= 7.7d-202) then
        tmp = x
    else if (a <= 60000000.0d0) 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 = y * -z;
	double t_2 = a * (1.0 - t);
	double tmp;
	if (a <= -1e+41) {
		tmp = t_2;
	} else if (a <= -4.1e-249) {
		tmp = t_1;
	} else if (a <= 7.7e-202) {
		tmp = x;
	} else if (a <= 60000000.0) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = y * -z
	t_2 = a * (1.0 - t)
	tmp = 0
	if a <= -1e+41:
		tmp = t_2
	elif a <= -4.1e-249:
		tmp = t_1
	elif a <= 7.7e-202:
		tmp = x
	elif a <= 60000000.0:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(y * Float64(-z))
	t_2 = Float64(a * Float64(1.0 - t))
	tmp = 0.0
	if (a <= -1e+41)
		tmp = t_2;
	elseif (a <= -4.1e-249)
		tmp = t_1;
	elseif (a <= 7.7e-202)
		tmp = x;
	elseif (a <= 60000000.0)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = y * -z;
	t_2 = a * (1.0 - t);
	tmp = 0.0;
	if (a <= -1e+41)
		tmp = t_2;
	elseif (a <= -4.1e-249)
		tmp = t_1;
	elseif (a <= 7.7e-202)
		tmp = x;
	elseif (a <= 60000000.0)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y * (-z)), $MachinePrecision]}, Block[{t$95$2 = N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[a, -1e+41], t$95$2, If[LessEqual[a, -4.1e-249], t$95$1, If[LessEqual[a, 7.7e-202], x, If[LessEqual[a, 60000000.0], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \left(-z\right)\\
t_2 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;a \leq -1 \cdot 10^{+41}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;a \leq -4.1 \cdot 10^{-249}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;a \leq 7.7 \cdot 10^{-202}:\\
\;\;\;\;x\\

\mathbf{elif}\;a \leq 60000000:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if a < -1.00000000000000001e41 or 6e7 < a

    1. Initial program 94.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 54.8%

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

    if -1.00000000000000001e41 < a < -4.10000000000000004e-249 or 7.6999999999999996e-202 < a < 6e7

    1. Initial program 96.2%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 59.9%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 30.7%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    5. Step-by-step derivation
      1. mul-1-neg30.7%

        \[\leadsto \color{blue}{-y \cdot z} \]
      2. distribute-rgt-neg-in30.7%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
    6. Simplified30.7%

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

    if -4.10000000000000004e-249 < a < 7.6999999999999996e-202

    1. Initial program 97.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 37.0%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification42.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;a \leq -1 \cdot 10^{+41}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \mathbf{elif}\;a \leq -4.1 \cdot 10^{-249}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;a \leq 7.7 \cdot 10^{-202}:\\ \;\;\;\;x\\ \mathbf{elif}\;a \leq 60000000:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;a \cdot \left(1 - t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 47.3% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(b - z\right)\\ t_2 := t \cdot \left(b - a\right)\\ \mathbf{if}\;t \leq -3.05 \cdot 10^{+88}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t \leq -5.6 \cdot 10^{-206}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 4.6 \cdot 10^{-271}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 5.2 \cdot 10^{+139}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* y (- b z))) (t_2 (* t (- b a))))
   (if (<= t -3.05e+88)
     t_2
     (if (<= t -5.6e-206)
       t_1
       (if (<= t 4.6e-271) x (if (<= t 5.2e+139) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * (b - z);
	double t_2 = t * (b - a);
	double tmp;
	if (t <= -3.05e+88) {
		tmp = t_2;
	} else if (t <= -5.6e-206) {
		tmp = t_1;
	} else if (t <= 4.6e-271) {
		tmp = x;
	} else if (t <= 5.2e+139) {
		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 = y * (b - z)
    t_2 = t * (b - a)
    if (t <= (-3.05d+88)) then
        tmp = t_2
    else if (t <= (-5.6d-206)) then
        tmp = t_1
    else if (t <= 4.6d-271) then
        tmp = x
    else if (t <= 5.2d+139) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * (b - z);
	double t_2 = t * (b - a);
	double tmp;
	if (t <= -3.05e+88) {
		tmp = t_2;
	} else if (t <= -5.6e-206) {
		tmp = t_1;
	} else if (t <= 4.6e-271) {
		tmp = x;
	} else if (t <= 5.2e+139) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = y * (b - z)
	t_2 = t * (b - a)
	tmp = 0
	if t <= -3.05e+88:
		tmp = t_2
	elif t <= -5.6e-206:
		tmp = t_1
	elif t <= 4.6e-271:
		tmp = x
	elif t <= 5.2e+139:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(y * Float64(b - z))
	t_2 = Float64(t * Float64(b - a))
	tmp = 0.0
	if (t <= -3.05e+88)
		tmp = t_2;
	elseif (t <= -5.6e-206)
		tmp = t_1;
	elseif (t <= 4.6e-271)
		tmp = x;
	elseif (t <= 5.2e+139)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = y * (b - z);
	t_2 = t * (b - a);
	tmp = 0.0;
	if (t <= -3.05e+88)
		tmp = t_2;
	elseif (t <= -5.6e-206)
		tmp = t_1;
	elseif (t <= 4.6e-271)
		tmp = x;
	elseif (t <= 5.2e+139)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y * N[(b - z), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t * N[(b - a), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -3.05e+88], t$95$2, If[LessEqual[t, -5.6e-206], t$95$1, If[LessEqual[t, 4.6e-271], x, If[LessEqual[t, 5.2e+139], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \left(b - z\right)\\
t_2 := t \cdot \left(b - a\right)\\
\mathbf{if}\;t \leq -3.05 \cdot 10^{+88}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;t \leq -5.6 \cdot 10^{-206}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq 4.6 \cdot 10^{-271}:\\
\;\;\;\;x\\

\mathbf{elif}\;t \leq 5.2 \cdot 10^{+139}:\\
\;\;\;\;t\_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -3.0499999999999999e88 or 5.20000000000000044e139 < t

    1. Initial program 92.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 79.5%

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

    if -3.0499999999999999e88 < t < -5.6000000000000003e-206 or 4.60000000000000017e-271 < t < 5.20000000000000044e139

    1. Initial program 96.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 43.5%

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

    if -5.6000000000000003e-206 < t < 4.60000000000000017e-271

    1. Initial program 96.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 38.5%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification53.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -3.05 \cdot 10^{+88}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \mathbf{elif}\;t \leq -5.6 \cdot 10^{-206}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;t \leq 4.6 \cdot 10^{-271}:\\ \;\;\;\;x\\ \mathbf{elif}\;t \leq 5.2 \cdot 10^{+139}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{else}:\\ \;\;\;\;t \cdot \left(b - a\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 15: 84.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ \mathbf{if}\;z \leq -2.6 \cdot 10^{+131} \lor \neg \left(z \leq 6.6 \cdot 10^{+146}\right):\\ \;\;\;\;x + \left(t\_1 + z \cdot \left(1 - y\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t))))
   (if (or (<= z -2.6e+131) (not (<= z 6.6e+146)))
     (+ x (+ t_1 (* z (- 1.0 y))))
     (+ (- x (* b (- 2.0 (+ y t)))) 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 ((z <= -2.6e+131) || !(z <= 6.6e+146)) {
		tmp = x + (t_1 + (z * (1.0 - y)));
	} else {
		tmp = (x - (b * (2.0 - (y + t)))) + 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 ((z <= (-2.6d+131)) .or. (.not. (z <= 6.6d+146))) then
        tmp = x + (t_1 + (z * (1.0d0 - y)))
    else
        tmp = (x - (b * (2.0d0 - (y + t)))) + 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 ((z <= -2.6e+131) || !(z <= 6.6e+146)) {
		tmp = x + (t_1 + (z * (1.0 - y)));
	} else {
		tmp = (x - (b * (2.0 - (y + t)))) + t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	tmp = 0
	if (z <= -2.6e+131) or not (z <= 6.6e+146):
		tmp = x + (t_1 + (z * (1.0 - y)))
	else:
		tmp = (x - (b * (2.0 - (y + t)))) + t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(a * Float64(1.0 - t))
	tmp = 0.0
	if ((z <= -2.6e+131) || !(z <= 6.6e+146))
		tmp = Float64(x + Float64(t_1 + Float64(z * Float64(1.0 - y))));
	else
		tmp = Float64(Float64(x - Float64(b * Float64(2.0 - Float64(y + t)))) + 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 ((z <= -2.6e+131) || ~((z <= 6.6e+146)))
		tmp = x + (t_1 + (z * (1.0 - y)));
	else
		tmp = (x - (b * (2.0 - (y + t)))) + 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[Or[LessEqual[z, -2.6e+131], N[Not[LessEqual[z, 6.6e+146]], $MachinePrecision]], N[(x + N[(t$95$1 + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
\mathbf{if}\;z \leq -2.6 \cdot 10^{+131} \lor \neg \left(z \leq 6.6 \cdot 10^{+146}\right):\\
\;\;\;\;x + \left(t\_1 + z \cdot \left(1 - y\right)\right)\\

\mathbf{else}:\\
\;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -2.6e131 or 6.60000000000000032e146 < z

    1. Initial program 89.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 86.4%

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

    if -2.6e131 < z < 6.60000000000000032e146

    1. Initial program 97.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 86.8%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - a \cdot \left(t - 1\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification86.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -2.6 \cdot 10^{+131} \lor \neg \left(z \leq 6.6 \cdot 10^{+146}\right):\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + a \cdot \left(1 - t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 16: 85.6% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := a \cdot \left(1 - t\right)\\ t_2 := x - b \cdot \left(2 - \left(y + t\right)\right)\\ t_3 := z \cdot \left(1 - y\right)\\ \mathbf{if}\;b \leq -2.2 \cdot 10^{-19}:\\ \;\;\;\;t\_2 + t\_1\\ \mathbf{elif}\;b \leq 1.4 \cdot 10^{-81}:\\ \;\;\;\;x + \left(t\_1 + t\_3\right)\\ \mathbf{else}:\\ \;\;\;\;t\_2 + t\_3\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* a (- 1.0 t)))
        (t_2 (- x (* b (- 2.0 (+ y t)))))
        (t_3 (* z (- 1.0 y))))
   (if (<= b -2.2e-19)
     (+ t_2 t_1)
     (if (<= b 1.4e-81) (+ x (+ t_1 t_3)) (+ 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 - (b * (2.0 - (y + t)));
	double t_3 = z * (1.0 - y);
	double tmp;
	if (b <= -2.2e-19) {
		tmp = t_2 + t_1;
	} else if (b <= 1.4e-81) {
		tmp = x + (t_1 + t_3);
	} else {
		tmp = t_2 + 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 - (b * (2.0d0 - (y + t)))
    t_3 = z * (1.0d0 - y)
    if (b <= (-2.2d-19)) then
        tmp = t_2 + t_1
    else if (b <= 1.4d-81) then
        tmp = x + (t_1 + t_3)
    else
        tmp = t_2 + 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 - (b * (2.0 - (y + t)));
	double t_3 = z * (1.0 - y);
	double tmp;
	if (b <= -2.2e-19) {
		tmp = t_2 + t_1;
	} else if (b <= 1.4e-81) {
		tmp = x + (t_1 + t_3);
	} else {
		tmp = t_2 + t_3;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = a * (1.0 - t)
	t_2 = x - (b * (2.0 - (y + t)))
	t_3 = z * (1.0 - y)
	tmp = 0
	if b <= -2.2e-19:
		tmp = t_2 + t_1
	elif b <= 1.4e-81:
		tmp = x + (t_1 + t_3)
	else:
		tmp = t_2 + 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(b * Float64(2.0 - Float64(y + t))))
	t_3 = Float64(z * Float64(1.0 - y))
	tmp = 0.0
	if (b <= -2.2e-19)
		tmp = Float64(t_2 + t_1);
	elseif (b <= 1.4e-81)
		tmp = Float64(x + Float64(t_1 + t_3));
	else
		tmp = Float64(t_2 + 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 - (b * (2.0 - (y + t)));
	t_3 = z * (1.0 - y);
	tmp = 0.0;
	if (b <= -2.2e-19)
		tmp = t_2 + t_1;
	elseif (b <= 1.4e-81)
		tmp = x + (t_1 + t_3);
	else
		tmp = t_2 + 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[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -2.2e-19], N[(t$95$2 + t$95$1), $MachinePrecision], If[LessEqual[b, 1.4e-81], N[(x + N[(t$95$1 + t$95$3), $MachinePrecision]), $MachinePrecision], N[(t$95$2 + t$95$3), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := a \cdot \left(1 - t\right)\\
t_2 := x - b \cdot \left(2 - \left(y + t\right)\right)\\
t_3 := z \cdot \left(1 - y\right)\\
\mathbf{if}\;b \leq -2.2 \cdot 10^{-19}:\\
\;\;\;\;t\_2 + t\_1\\

\mathbf{elif}\;b \leq 1.4 \cdot 10^{-81}:\\
\;\;\;\;x + \left(t\_1 + t\_3\right)\\

\mathbf{else}:\\
\;\;\;\;t\_2 + t\_3\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -2.1999999999999998e-19

    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 z around 0 87.3%

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

    if -2.1999999999999998e-19 < b < 1.3999999999999999e-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 b around 0 97.1%

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

    if 1.3999999999999999e-81 < b

    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 a around 0 81.2%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification88.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.2 \cdot 10^{-19}:\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + a \cdot \left(1 - t\right)\\ \mathbf{elif}\;b \leq 1.4 \cdot 10^{-81}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\left(x - b \cdot \left(2 - \left(y + t\right)\right)\right) + z \cdot \left(1 - y\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 17: 66.3% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(b - z\right)\\ \mathbf{if}\;y \leq -4.5 \cdot 10^{+119}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq -1.2 \cdot 10^{-7}:\\ \;\;\;\;x + \left(a - z \cdot \left(y + -1\right)\right)\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+22}:\\ \;\;\;\;x + \left(z + \left(t + -2\right) \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* y (- b z))))
   (if (<= y -4.5e+119)
     t_1
     (if (<= y -1.2e-7)
       (+ x (- a (* z (+ y -1.0))))
       (if (<= y 4e+22) (+ 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 <= -4.5e+119) {
		tmp = t_1;
	} else if (y <= -1.2e-7) {
		tmp = x + (a - (z * (y + -1.0)));
	} else if (y <= 4e+22) {
		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 <= (-4.5d+119)) then
        tmp = t_1
    else if (y <= (-1.2d-7)) then
        tmp = x + (a - (z * (y + (-1.0d0))))
    else if (y <= 4d+22) 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 <= -4.5e+119) {
		tmp = t_1;
	} else if (y <= -1.2e-7) {
		tmp = x + (a - (z * (y + -1.0)));
	} else if (y <= 4e+22) {
		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 <= -4.5e+119:
		tmp = t_1
	elif y <= -1.2e-7:
		tmp = x + (a - (z * (y + -1.0)))
	elif y <= 4e+22:
		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 <= -4.5e+119)
		tmp = t_1;
	elseif (y <= -1.2e-7)
		tmp = Float64(x + Float64(a - Float64(z * Float64(y + -1.0))));
	elseif (y <= 4e+22)
		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 <= -4.5e+119)
		tmp = t_1;
	elseif (y <= -1.2e-7)
		tmp = x + (a - (z * (y + -1.0)));
	elseif (y <= 4e+22)
		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, -4.5e+119], t$95$1, If[LessEqual[y, -1.2e-7], N[(x + N[(a - N[(z * N[(y + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4e+22], 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 -4.5 \cdot 10^{+119}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq -1.2 \cdot 10^{-7}:\\
\;\;\;\;x + \left(a - z \cdot \left(y + -1\right)\right)\\

\mathbf{elif}\;y \leq 4 \cdot 10^{+22}:\\
\;\;\;\;x + \left(z + \left(t + -2\right) \cdot b\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -4.5000000000000002e119 or 4e22 < 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 76.3%

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

    if -4.5000000000000002e119 < y < -1.19999999999999989e-7

    1. Initial program 89.9%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 90.1%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in t around 0 75.0%

      \[\leadsto x - \color{blue}{\left(-1 \cdot a + z \cdot \left(y - 1\right)\right)} \]
    5. Step-by-step derivation
      1. +-commutative75.0%

        \[\leadsto x - \color{blue}{\left(z \cdot \left(y - 1\right) + -1 \cdot a\right)} \]
      2. sub-neg75.0%

        \[\leadsto x - \left(z \cdot \color{blue}{\left(y + \left(-1\right)\right)} + -1 \cdot a\right) \]
      3. metadata-eval75.0%

        \[\leadsto x - \left(z \cdot \left(y + \color{blue}{-1}\right) + -1 \cdot a\right) \]
      4. neg-mul-175.0%

        \[\leadsto x - \left(z \cdot \left(y + -1\right) + \color{blue}{\left(-a\right)}\right) \]
      5. unsub-neg75.0%

        \[\leadsto x - \color{blue}{\left(z \cdot \left(y + -1\right) - a\right)} \]
    6. Simplified75.0%

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

    if -1.19999999999999989e-7 < y < 4e22

    1. Initial program 97.8%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 75.0%

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

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

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

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

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

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

      \[\leadsto \color{blue}{x + \left(b \cdot \left(t + -2\right) - \left(-z\right)\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification74.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.5 \cdot 10^{+119}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \mathbf{elif}\;y \leq -1.2 \cdot 10^{-7}:\\ \;\;\;\;x + \left(a - z \cdot \left(y + -1\right)\right)\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+22}:\\ \;\;\;\;x + \left(z + \left(t + -2\right) \cdot b\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(b - z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 18: 82.9% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -4.7 \cdot 10^{+76} \lor \neg \left(b \leq 3 \cdot 10^{+175}\right):\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= b -4.7e+76) (not (<= b 3e+175)))
   (- x (* b (- 2.0 (+ y t))))
   (+ x (+ (* a (- 1.0 t)) (* z (- 1.0 y))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -4.7e+76) || !(b <= 3e+175)) {
		tmp = x - (b * (2.0 - (y + t)));
	} else {
		tmp = x + ((a * (1.0 - t)) + (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 ((b <= (-4.7d+76)) .or. (.not. (b <= 3d+175))) then
        tmp = x - (b * (2.0d0 - (y + t)))
    else
        tmp = x + ((a * (1.0d0 - t)) + (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 ((b <= -4.7e+76) || !(b <= 3e+175)) {
		tmp = x - (b * (2.0 - (y + t)));
	} else {
		tmp = x + ((a * (1.0 - t)) + (z * (1.0 - y)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (b <= -4.7e+76) or not (b <= 3e+175):
		tmp = x - (b * (2.0 - (y + t)))
	else:
		tmp = x + ((a * (1.0 - t)) + (z * (1.0 - y)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((b <= -4.7e+76) || !(b <= 3e+175))
		tmp = Float64(x - Float64(b * Float64(2.0 - Float64(y + t))));
	else
		tmp = Float64(x + Float64(Float64(a * Float64(1.0 - t)) + Float64(z * Float64(1.0 - y))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((b <= -4.7e+76) || ~((b <= 3e+175)))
		tmp = x - (b * (2.0 - (y + t)));
	else
		tmp = x + ((a * (1.0 - t)) + (z * (1.0 - y)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[b, -4.7e+76], N[Not[LessEqual[b, 3e+175]], $MachinePrecision]], N[(x - N[(b * N[(2.0 - N[(y + t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(a * N[(1.0 - t), $MachinePrecision]), $MachinePrecision] + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -4.7 \cdot 10^{+76} \lor \neg \left(b \leq 3 \cdot 10^{+175}\right):\\
\;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -4.7000000000000003e76 or 3.0000000000000002e175 < b

    1. Initial program 88.6%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 85.9%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in z around 0 83.6%

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

    if -4.7000000000000003e76 < b < 3.0000000000000002e175

    1. Initial program 98.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 83.9%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification83.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -4.7 \cdot 10^{+76} \lor \neg \left(b \leq 3 \cdot 10^{+175}\right):\\ \;\;\;\;x - b \cdot \left(2 - \left(y + t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(a \cdot \left(1 - t\right) + z \cdot \left(1 - y\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 19: 28.6% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \left(-z\right)\\ \mathbf{if}\;y \leq -3.5 \cdot 10^{+29}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 1.75 \cdot 10^{-252}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 7.2 \cdot 10^{+22}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* y (- z))))
   (if (<= y -3.5e+29)
     t_1
     (if (<= y 1.75e-252) (* t b) (if (<= y 7.2e+22) x t_1)))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * -z;
	double tmp;
	if (y <= -3.5e+29) {
		tmp = t_1;
	} else if (y <= 1.75e-252) {
		tmp = t * b;
	} else if (y <= 7.2e+22) {
		tmp = x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: tmp
    t_1 = y * -z
    if (y <= (-3.5d+29)) then
        tmp = t_1
    else if (y <= 1.75d-252) then
        tmp = t * b
    else if (y <= 7.2d+22) then
        tmp = x
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = y * -z;
	double tmp;
	if (y <= -3.5e+29) {
		tmp = t_1;
	} else if (y <= 1.75e-252) {
		tmp = t * b;
	} else if (y <= 7.2e+22) {
		tmp = x;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = y * -z
	tmp = 0
	if y <= -3.5e+29:
		tmp = t_1
	elif y <= 1.75e-252:
		tmp = t * b
	elif y <= 7.2e+22:
		tmp = x
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(y * Float64(-z))
	tmp = 0.0
	if (y <= -3.5e+29)
		tmp = t_1;
	elseif (y <= 1.75e-252)
		tmp = Float64(t * b);
	elseif (y <= 7.2e+22)
		tmp = x;
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = y * -z;
	tmp = 0.0;
	if (y <= -3.5e+29)
		tmp = t_1;
	elseif (y <= 1.75e-252)
		tmp = t * b;
	elseif (y <= 7.2e+22)
		tmp = x;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(y * (-z)), $MachinePrecision]}, If[LessEqual[y, -3.5e+29], t$95$1, If[LessEqual[y, 1.75e-252], N[(t * b), $MachinePrecision], If[LessEqual[y, 7.2e+22], x, t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \left(-z\right)\\
\mathbf{if}\;y \leq -3.5 \cdot 10^{+29}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 1.75 \cdot 10^{-252}:\\
\;\;\;\;t \cdot b\\

\mathbf{elif}\;y \leq 7.2 \cdot 10^{+22}:\\
\;\;\;\;x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -3.49999999999999979e29 or 7.2e22 < y

    1. Initial program 91.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in b around 0 68.7%

      \[\leadsto \color{blue}{x - \left(a \cdot \left(t - 1\right) + z \cdot \left(y - 1\right)\right)} \]
    4. Taylor expanded in y around inf 47.1%

      \[\leadsto \color{blue}{-1 \cdot \left(y \cdot z\right)} \]
    5. Step-by-step derivation
      1. mul-1-neg47.1%

        \[\leadsto \color{blue}{-y \cdot z} \]
      2. distribute-rgt-neg-in47.1%

        \[\leadsto \color{blue}{y \cdot \left(-z\right)} \]
    6. Simplified47.1%

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

    if -3.49999999999999979e29 < y < 1.74999999999999993e-252

    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 a around 0 76.4%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in t around inf 29.9%

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

    if 1.74999999999999993e-252 < y < 7.2e22

    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 31.9%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification37.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.5 \cdot 10^{+29}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \mathbf{elif}\;y \leq 1.75 \cdot 10^{-252}:\\ \;\;\;\;t \cdot b\\ \mathbf{elif}\;y \leq 7.2 \cdot 10^{+22}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(-z\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 20: 19.5% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -4.4 \cdot 10^{+78}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 2.7 \cdot 10^{-155}:\\ \;\;\;\;-2 \cdot b\\ \mathbf{elif}\;x \leq 1.1 \cdot 10^{+112}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -4.4e+78)
   x
   (if (<= x 2.7e-155) (* -2.0 b) (if (<= x 1.1e+112) z x))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -4.4e+78) {
		tmp = x;
	} else if (x <= 2.7e-155) {
		tmp = -2.0 * b;
	} else if (x <= 1.1e+112) {
		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 <= (-4.4d+78)) then
        tmp = x
    else if (x <= 2.7d-155) then
        tmp = (-2.0d0) * b
    else if (x <= 1.1d+112) 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 <= -4.4e+78) {
		tmp = x;
	} else if (x <= 2.7e-155) {
		tmp = -2.0 * b;
	} else if (x <= 1.1e+112) {
		tmp = z;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -4.4e+78:
		tmp = x
	elif x <= 2.7e-155:
		tmp = -2.0 * b
	elif x <= 1.1e+112:
		tmp = z
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -4.4e+78)
		tmp = x;
	elseif (x <= 2.7e-155)
		tmp = Float64(-2.0 * b);
	elseif (x <= 1.1e+112)
		tmp = z;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -4.4e+78)
		tmp = x;
	elseif (x <= 2.7e-155)
		tmp = -2.0 * b;
	elseif (x <= 1.1e+112)
		tmp = z;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -4.4e+78], x, If[LessEqual[x, 2.7e-155], N[(-2.0 * b), $MachinePrecision], If[LessEqual[x, 1.1e+112], z, x]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -4.4 \cdot 10^{+78}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 2.7 \cdot 10^{-155}:\\
\;\;\;\;-2 \cdot b\\

\mathbf{elif}\;x \leq 1.1 \cdot 10^{+112}:\\
\;\;\;\;z\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if x < -4.40000000000000028e78 or 1.1e112 < x

    1. Initial program 95.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 34.1%

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

    if -4.40000000000000028e78 < x < 2.69999999999999981e-155

    1. Initial program 96.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 57.0%

      \[\leadsto \color{blue}{-1 \cdot \left(a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    4. Step-by-step derivation
      1. mul-1-neg57.0%

        \[\leadsto \color{blue}{\left(-a \cdot t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
      2. distribute-rgt-neg-in57.0%

        \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    5. Simplified57.0%

      \[\leadsto \color{blue}{a \cdot \left(-t\right)} + \left(\left(y + t\right) - 2\right) \cdot b \]
    6. Taylor expanded in t around 0 31.7%

      \[\leadsto \color{blue}{b \cdot \left(y - 2\right)} \]
    7. Taylor expanded in y around 0 19.2%

      \[\leadsto \color{blue}{-2 \cdot b} \]
    8. Step-by-step derivation
      1. *-commutative19.2%

        \[\leadsto \color{blue}{b \cdot -2} \]
    9. Simplified19.2%

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

    if 2.69999999999999981e-155 < x < 1.1e112

    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 z around inf 36.4%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    4. Taylor expanded in y around 0 19.7%

      \[\leadsto \color{blue}{z} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification24.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -4.4 \cdot 10^{+78}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 2.7 \cdot 10^{-155}:\\ \;\;\;\;-2 \cdot b\\ \mathbf{elif}\;x \leq 1.1 \cdot 10^{+112}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 21: 24.8% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -2.3 \cdot 10^{+115} \lor \neg \left(b \leq 0.0016\right):\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= b -2.3e+115) (not (<= b 0.0016))) (* t b) x))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -2.3e+115) || !(b <= 0.0016)) {
		tmp = t * b;
	} 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 ((b <= (-2.3d+115)) .or. (.not. (b <= 0.0016d0))) then
        tmp = t * b
    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 ((b <= -2.3e+115) || !(b <= 0.0016)) {
		tmp = t * b;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (b <= -2.3e+115) or not (b <= 0.0016):
		tmp = t * b
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((b <= -2.3e+115) || !(b <= 0.0016))
		tmp = Float64(t * b);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((b <= -2.3e+115) || ~((b <= 0.0016)))
		tmp = t * b;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[b, -2.3e+115], N[Not[LessEqual[b, 0.0016]], $MachinePrecision]], N[(t * b), $MachinePrecision], x]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -2.3 \cdot 10^{+115} \lor \neg \left(b \leq 0.0016\right):\\
\;\;\;\;t \cdot b\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -2.30000000000000004e115 or 0.00160000000000000008 < b

    1. Initial program 89.0%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 80.0%

      \[\leadsto \color{blue}{\left(x + b \cdot \left(\left(t + y\right) - 2\right)\right) - z \cdot \left(y - 1\right)} \]
    4. Taylor expanded in t around inf 34.6%

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

    if -2.30000000000000004e115 < b < 0.00160000000000000008

    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 23.3%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification28.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.3 \cdot 10^{+115} \lor \neg \left(b \leq 0.0016\right):\\ \;\;\;\;t \cdot b\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 22: 20.8% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -4.5 \cdot 10^{-7}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 1.25 \cdot 10^{-49}:\\ \;\;\;\;a\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -4.5e-7) x (if (<= x 1.25e-49) a x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -4.5e-7) {
		tmp = x;
	} else if (x <= 1.25e-49) {
		tmp = a;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (x <= (-4.5d-7)) then
        tmp = x
    else if (x <= 1.25d-49) then
        tmp = a
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -4.5e-7) {
		tmp = x;
	} else if (x <= 1.25e-49) {
		tmp = a;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -4.5e-7:
		tmp = x
	elif x <= 1.25e-49:
		tmp = a
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -4.5e-7)
		tmp = x;
	elseif (x <= 1.25e-49)
		tmp = a;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -4.5e-7)
		tmp = x;
	elseif (x <= 1.25e-49)
		tmp = a;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -4.5e-7], x, If[LessEqual[x, 1.25e-49], a, x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -4.5 \cdot 10^{-7}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 1.25 \cdot 10^{-49}:\\
\;\;\;\;a\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -4.4999999999999998e-7 or 1.25e-49 < x

    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 x around inf 23.5%

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

    if -4.4999999999999998e-7 < x < 1.25e-49

    1. Initial program 96.3%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 27.2%

      \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
    4. Taylor expanded in t around 0 13.0%

      \[\leadsto \color{blue}{a} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification19.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -4.5 \cdot 10^{-7}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 1.25 \cdot 10^{-49}:\\ \;\;\;\;a\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 23: 21.0% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.9 \cdot 10^{+76}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 8.8 \cdot 10^{+111}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x -2.9e+76) x (if (<= x 8.8e+111) z x)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= -2.9e+76) {
		tmp = x;
	} else if (x <= 8.8e+111) {
		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 <= (-2.9d+76)) then
        tmp = x
    else if (x <= 8.8d+111) 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 <= -2.9e+76) {
		tmp = x;
	} else if (x <= 8.8e+111) {
		tmp = z;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= -2.9e+76:
		tmp = x
	elif x <= 8.8e+111:
		tmp = z
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= -2.9e+76)
		tmp = x;
	elseif (x <= 8.8e+111)
		tmp = z;
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= -2.9e+76)
		tmp = x;
	elseif (x <= 8.8e+111)
		tmp = z;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, -2.9e+76], x, If[LessEqual[x, 8.8e+111], z, x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.9 \cdot 10^{+76}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 8.8 \cdot 10^{+111}:\\
\;\;\;\;z\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -2.9000000000000002e76 or 8.79999999999999994e111 < x

    1. Initial program 95.7%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 34.1%

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

    if -2.9000000000000002e76 < x < 8.79999999999999994e111

    1. Initial program 95.1%

      \[\left(\left(x - \left(y - 1\right) \cdot z\right) - \left(t - 1\right) \cdot a\right) + \left(\left(y + t\right) - 2\right) \cdot b \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 35.1%

      \[\leadsto \color{blue}{z \cdot \left(1 - y\right)} \]
    4. Taylor expanded in y around 0 15.5%

      \[\leadsto \color{blue}{z} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification22.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2.9 \cdot 10^{+76}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 8.8 \cdot 10^{+111}:\\ \;\;\;\;z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 24: 10.9% accurate, 21.0× speedup?

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

\\
a
\end{array}
Derivation
  1. Initial program 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 a around inf 27.8%

    \[\leadsto \color{blue}{a \cdot \left(1 - t\right)} \]
  4. Taylor expanded in t around 0 9.6%

    \[\leadsto \color{blue}{a} \]
  5. Final simplification9.6%

    \[\leadsto a \]
  6. Add Preprocessing

Reproduce

?
herbie shell --seed 2024078 
(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)))