Diagrams.Solve.Polynomial:cubForm from diagrams-solve-0.1, H

Percentage Accurate: 95.4% → 97.9%
Time: 10.2s
Alternatives: 16
Speedup: 1.4×

Specification

?
\[\begin{array}{l} \\ \left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (+ (- x (/ y (* z 3.0))) (/ t (* (* z 3.0) y))))
double code(double x, double y, double z, double t) {
	return (x - (y / (z * 3.0))) + (t / ((z * 3.0) * y));
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = (x - (y / (z * 3.0d0))) + (t / ((z * 3.0d0) * y))
end function
public static double code(double x, double y, double z, double t) {
	return (x - (y / (z * 3.0))) + (t / ((z * 3.0) * y));
}
def code(x, y, z, t):
	return (x - (y / (z * 3.0))) + (t / ((z * 3.0) * y))
function code(x, y, z, t)
	return Float64(Float64(x - Float64(y / Float64(z * 3.0))) + Float64(t / Float64(Float64(z * 3.0) * y)))
end
function tmp = code(x, y, z, t)
	tmp = (x - (y / (z * 3.0))) + (t / ((z * 3.0) * y));
end
code[x_, y_, z_, t_] := N[(N[(x - N[(y / N[(z * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(t / N[(N[(z * 3.0), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}
\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 16 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: 95.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (+ (- x (/ y (* z 3.0))) (/ t (* (* z 3.0) y))))
double code(double x, double y, double z, double t) {
	return (x - (y / (z * 3.0))) + (t / ((z * 3.0) * y));
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = (x - (y / (z * 3.0d0))) + (t / ((z * 3.0d0) * y))
end function
public static double code(double x, double y, double z, double t) {
	return (x - (y / (z * 3.0))) + (t / ((z * 3.0) * y));
}
def code(x, y, z, t):
	return (x - (y / (z * 3.0))) + (t / ((z * 3.0) * y))
function code(x, y, z, t)
	return Float64(Float64(x - Float64(y / Float64(z * 3.0))) + Float64(t / Float64(Float64(z * 3.0) * y)))
end
function tmp = code(x, y, z, t)
	tmp = (x - (y / (z * 3.0))) + (t / ((z * 3.0) * y));
end
code[x_, y_, z_, t_] := N[(N[(x - N[(y / N[(z * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(t / N[(N[(z * 3.0), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}
\end{array}

Alternative 1: 97.9% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -5 \cdot 10^{+35}:\\ \;\;\;\;\left(\frac{t}{z \cdot \left(y \cdot 3\right)} + x\right) + \frac{y}{z \cdot -3}\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y - \frac{t}{y}}{z \cdot -3}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= t -5e+35)
   (+ (+ (/ t (* z (* y 3.0))) x) (/ y (* z -3.0)))
   (+ x (/ (- y (/ t y)) (* z -3.0)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (t <= -5e+35) {
		tmp = ((t / (z * (y * 3.0))) + x) + (y / (z * -3.0));
	} else {
		tmp = x + ((y - (t / y)) / (z * -3.0));
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (t <= (-5d+35)) then
        tmp = ((t / (z * (y * 3.0d0))) + x) + (y / (z * (-3.0d0)))
    else
        tmp = x + ((y - (t / y)) / (z * (-3.0d0)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (t <= -5e+35) {
		tmp = ((t / (z * (y * 3.0))) + x) + (y / (z * -3.0));
	} else {
		tmp = x + ((y - (t / y)) / (z * -3.0));
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if t <= -5e+35:
		tmp = ((t / (z * (y * 3.0))) + x) + (y / (z * -3.0))
	else:
		tmp = x + ((y - (t / y)) / (z * -3.0))
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (t <= -5e+35)
		tmp = Float64(Float64(Float64(t / Float64(z * Float64(y * 3.0))) + x) + Float64(y / Float64(z * -3.0)));
	else
		tmp = Float64(x + Float64(Float64(y - Float64(t / y)) / Float64(z * -3.0)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (t <= -5e+35)
		tmp = ((t / (z * (y * 3.0))) + x) + (y / (z * -3.0));
	else
		tmp = x + ((y - (t / y)) / (z * -3.0));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[t, -5e+35], N[(N[(N[(t / N[(z * N[(y * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision] + N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y - N[(t / y), $MachinePrecision]), $MachinePrecision] / N[(z * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -5 \cdot 10^{+35}:\\
\;\;\;\;\left(\frac{t}{z \cdot \left(y \cdot 3\right)} + x\right) + \frac{y}{z \cdot -3}\\

\mathbf{else}:\\
\;\;\;\;x + \frac{y - \frac{t}{y}}{z \cdot -3}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -5.00000000000000021e35

    1. Initial program 99.7%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. +-commutative99.7%

        \[\leadsto \color{blue}{\frac{t}{\left(z \cdot 3\right) \cdot y} + \left(x - \frac{y}{z \cdot 3}\right)} \]
      2. associate-+r-99.7%

        \[\leadsto \color{blue}{\left(\frac{t}{\left(z \cdot 3\right) \cdot y} + x\right) - \frac{y}{z \cdot 3}} \]
      3. sub-neg99.7%

        \[\leadsto \color{blue}{\left(\frac{t}{\left(z \cdot 3\right) \cdot y} + x\right) + \left(-\frac{y}{z \cdot 3}\right)} \]
      4. associate-*l*99.8%

        \[\leadsto \left(\frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}} + x\right) + \left(-\frac{y}{z \cdot 3}\right) \]
      5. *-commutative99.8%

        \[\leadsto \left(\frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}} + x\right) + \left(-\frac{y}{z \cdot 3}\right) \]
      6. distribute-frac-neg299.8%

        \[\leadsto \left(\frac{t}{z \cdot \left(y \cdot 3\right)} + x\right) + \color{blue}{\frac{y}{-z \cdot 3}} \]
      7. distribute-rgt-neg-in99.8%

        \[\leadsto \left(\frac{t}{z \cdot \left(y \cdot 3\right)} + x\right) + \frac{y}{\color{blue}{z \cdot \left(-3\right)}} \]
      8. metadata-eval99.8%

        \[\leadsto \left(\frac{t}{z \cdot \left(y \cdot 3\right)} + x\right) + \frac{y}{z \cdot \color{blue}{-3}} \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{\left(\frac{t}{z \cdot \left(y \cdot 3\right)} + x\right) + \frac{y}{z \cdot -3}} \]
    4. Add Preprocessing

    if -5.00000000000000021e35 < t

    1. Initial program 93.1%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg93.1%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+93.1%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg93.1%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg93.1%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg93.1%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg93.1%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-193.1%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative93.1%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*93.1%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative93.1%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-193.1%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac98.8%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--99.3%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative99.3%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*99.3%

        \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
      16. metadata-eval99.3%

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified99.3%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. div-inv99.2%

        \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \left(y - \color{blue}{t \cdot \frac{1}{y}}\right) \]
    6. Applied egg-rr99.2%

      \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \left(y - \color{blue}{t \cdot \frac{1}{y}}\right) \]
    7. Step-by-step derivation
      1. *-commutative99.2%

        \[\leadsto x + \color{blue}{\left(y - t \cdot \frac{1}{y}\right) \cdot \frac{-0.3333333333333333}{z}} \]
      2. clear-num99.2%

        \[\leadsto x + \left(y - t \cdot \frac{1}{y}\right) \cdot \color{blue}{\frac{1}{\frac{z}{-0.3333333333333333}}} \]
      3. un-div-inv99.2%

        \[\leadsto x + \color{blue}{\frac{y - t \cdot \frac{1}{y}}{\frac{z}{-0.3333333333333333}}} \]
      4. un-div-inv99.3%

        \[\leadsto x + \frac{y - \color{blue}{\frac{t}{y}}}{\frac{z}{-0.3333333333333333}} \]
      5. div-inv99.3%

        \[\leadsto x + \frac{y - \frac{t}{y}}{\color{blue}{z \cdot \frac{1}{-0.3333333333333333}}} \]
      6. metadata-eval99.3%

        \[\leadsto x + \frac{y - \frac{t}{y}}{z \cdot \color{blue}{-3}} \]
    8. Applied egg-rr99.3%

      \[\leadsto x + \color{blue}{\frac{y - \frac{t}{y}}{z \cdot -3}} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 2: 61.5% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -7.9 \cdot 10^{+58}:\\ \;\;\;\;\frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 1400:\\ \;\;\;\;0.3333333333333333 \cdot \frac{\frac{t}{y}}{z}\\ \mathbf{elif}\;y \leq 3.6 \cdot 10^{+56}:\\ \;\;\;\;\frac{y}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{y}{z}}{-3}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= y -7.9e+58)
   (/ y (* z -3.0))
   (if (<= y 1400.0)
     (* 0.3333333333333333 (/ (/ t y) z))
     (if (<= y 3.6e+56) (/ y (/ y x)) (/ (/ y z) -3.0)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -7.9e+58) {
		tmp = y / (z * -3.0);
	} else if (y <= 1400.0) {
		tmp = 0.3333333333333333 * ((t / y) / z);
	} else if (y <= 3.6e+56) {
		tmp = y / (y / x);
	} else {
		tmp = (y / z) / -3.0;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (y <= (-7.9d+58)) then
        tmp = y / (z * (-3.0d0))
    else if (y <= 1400.0d0) then
        tmp = 0.3333333333333333d0 * ((t / y) / z)
    else if (y <= 3.6d+56) then
        tmp = y / (y / x)
    else
        tmp = (y / z) / (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -7.9e+58) {
		tmp = y / (z * -3.0);
	} else if (y <= 1400.0) {
		tmp = 0.3333333333333333 * ((t / y) / z);
	} else if (y <= 3.6e+56) {
		tmp = y / (y / x);
	} else {
		tmp = (y / z) / -3.0;
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if y <= -7.9e+58:
		tmp = y / (z * -3.0)
	elif y <= 1400.0:
		tmp = 0.3333333333333333 * ((t / y) / z)
	elif y <= 3.6e+56:
		tmp = y / (y / x)
	else:
		tmp = (y / z) / -3.0
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (y <= -7.9e+58)
		tmp = Float64(y / Float64(z * -3.0));
	elseif (y <= 1400.0)
		tmp = Float64(0.3333333333333333 * Float64(Float64(t / y) / z));
	elseif (y <= 3.6e+56)
		tmp = Float64(y / Float64(y / x));
	else
		tmp = Float64(Float64(y / z) / -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (y <= -7.9e+58)
		tmp = y / (z * -3.0);
	elseif (y <= 1400.0)
		tmp = 0.3333333333333333 * ((t / y) / z);
	elseif (y <= 3.6e+56)
		tmp = y / (y / x);
	else
		tmp = (y / z) / -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[y, -7.9e+58], N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1400.0], N[(0.3333333333333333 * N[(N[(t / y), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.6e+56], N[(y / N[(y / x), $MachinePrecision]), $MachinePrecision], N[(N[(y / z), $MachinePrecision] / -3.0), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.9 \cdot 10^{+58}:\\
\;\;\;\;\frac{y}{z \cdot -3}\\

\mathbf{elif}\;y \leq 1400:\\
\;\;\;\;0.3333333333333333 \cdot \frac{\frac{t}{y}}{z}\\

\mathbf{elif}\;y \leq 3.6 \cdot 10^{+56}:\\
\;\;\;\;\frac{y}{\frac{y}{x}}\\

\mathbf{else}:\\
\;\;\;\;\frac{\frac{y}{z}}{-3}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -7.89999999999999988e58

    1. Initial program 99.9%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg99.9%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg99.9%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-199.9%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative99.9%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac99.8%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define99.8%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval99.8%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*99.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative99.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 93.7%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around 0 68.0%

      \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{z}} \]
    7. Step-by-step derivation
      1. clear-num67.9%

        \[\leadsto y \cdot \color{blue}{\frac{1}{\frac{z}{-0.3333333333333333}}} \]
      2. div-inv68.0%

        \[\leadsto y \cdot \frac{1}{\color{blue}{z \cdot \frac{1}{-0.3333333333333333}}} \]
      3. metadata-eval68.0%

        \[\leadsto y \cdot \frac{1}{z \cdot \color{blue}{-3}} \]
      4. div-inv68.0%

        \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]
    8. Applied egg-rr68.0%

      \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]

    if -7.89999999999999988e58 < y < 1400

    1. Initial program 91.4%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 69.2%

      \[\leadsto \color{blue}{\frac{0.3333333333333333 \cdot \frac{t}{y} - 0.3333333333333333 \cdot y}{z}} \]
    4. Taylor expanded in t around inf 62.6%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]
    5. Step-by-step derivation
      1. associate-/r*62.9%

        \[\leadsto 0.3333333333333333 \cdot \color{blue}{\frac{\frac{t}{y}}{z}} \]
    6. Simplified62.9%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{\frac{t}{y}}{z}} \]

    if 1400 < y < 3.59999999999999998e56

    1. Initial program 100.0%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg100.0%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+100.0%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg100.0%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-1100.0%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative100.0%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac100.0%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define100.0%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval100.0%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*100.0%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative100.0%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 91.2%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around inf 81.7%

      \[\leadsto y \cdot \color{blue}{\frac{x}{y}} \]
    7. Step-by-step derivation
      1. clear-num81.6%

        \[\leadsto y \cdot \color{blue}{\frac{1}{\frac{y}{x}}} \]
      2. un-div-inv82.0%

        \[\leadsto \color{blue}{\frac{y}{\frac{y}{x}}} \]
    8. Applied egg-rr82.0%

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

    if 3.59999999999999998e56 < y

    1. Initial program 95.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg95.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+95.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg95.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-195.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative95.5%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac95.5%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define95.5%

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

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*95.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative95.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified95.5%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 91.5%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around 0 75.6%

      \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{z}} \]
    7. Step-by-step derivation
      1. clear-num75.6%

        \[\leadsto y \cdot \color{blue}{\frac{1}{\frac{z}{-0.3333333333333333}}} \]
      2. div-inv75.7%

        \[\leadsto y \cdot \frac{1}{\color{blue}{z \cdot \frac{1}{-0.3333333333333333}}} \]
      3. metadata-eval75.7%

        \[\leadsto y \cdot \frac{1}{z \cdot \color{blue}{-3}} \]
      4. div-inv75.7%

        \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]
      5. associate-/r*75.7%

        \[\leadsto \color{blue}{\frac{\frac{y}{z}}{-3}} \]
    8. Applied egg-rr75.7%

      \[\leadsto \color{blue}{\frac{\frac{y}{z}}{-3}} \]
  3. Recombined 4 regimes into one program.
  4. Add Preprocessing

Alternative 3: 61.9% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+58}:\\ \;\;\;\;\frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 380:\\ \;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \mathbf{elif}\;y \leq 3 \cdot 10^{+56}:\\ \;\;\;\;\frac{y}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{y}{z}}{-3}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= y -5.2e+58)
   (/ y (* z -3.0))
   (if (<= y 380.0)
     (* 0.3333333333333333 (/ t (* z y)))
     (if (<= y 3e+56) (/ y (/ y x)) (/ (/ y z) -3.0)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -5.2e+58) {
		tmp = y / (z * -3.0);
	} else if (y <= 380.0) {
		tmp = 0.3333333333333333 * (t / (z * y));
	} else if (y <= 3e+56) {
		tmp = y / (y / x);
	} else {
		tmp = (y / z) / -3.0;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (y <= (-5.2d+58)) then
        tmp = y / (z * (-3.0d0))
    else if (y <= 380.0d0) then
        tmp = 0.3333333333333333d0 * (t / (z * y))
    else if (y <= 3d+56) then
        tmp = y / (y / x)
    else
        tmp = (y / z) / (-3.0d0)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -5.2e+58) {
		tmp = y / (z * -3.0);
	} else if (y <= 380.0) {
		tmp = 0.3333333333333333 * (t / (z * y));
	} else if (y <= 3e+56) {
		tmp = y / (y / x);
	} else {
		tmp = (y / z) / -3.0;
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if y <= -5.2e+58:
		tmp = y / (z * -3.0)
	elif y <= 380.0:
		tmp = 0.3333333333333333 * (t / (z * y))
	elif y <= 3e+56:
		tmp = y / (y / x)
	else:
		tmp = (y / z) / -3.0
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (y <= -5.2e+58)
		tmp = Float64(y / Float64(z * -3.0));
	elseif (y <= 380.0)
		tmp = Float64(0.3333333333333333 * Float64(t / Float64(z * y)));
	elseif (y <= 3e+56)
		tmp = Float64(y / Float64(y / x));
	else
		tmp = Float64(Float64(y / z) / -3.0);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (y <= -5.2e+58)
		tmp = y / (z * -3.0);
	elseif (y <= 380.0)
		tmp = 0.3333333333333333 * (t / (z * y));
	elseif (y <= 3e+56)
		tmp = y / (y / x);
	else
		tmp = (y / z) / -3.0;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[y, -5.2e+58], N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 380.0], N[(0.3333333333333333 * N[(t / N[(z * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3e+56], N[(y / N[(y / x), $MachinePrecision]), $MachinePrecision], N[(N[(y / z), $MachinePrecision] / -3.0), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.2 \cdot 10^{+58}:\\
\;\;\;\;\frac{y}{z \cdot -3}\\

\mathbf{elif}\;y \leq 380:\\
\;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\

\mathbf{elif}\;y \leq 3 \cdot 10^{+56}:\\
\;\;\;\;\frac{y}{\frac{y}{x}}\\

\mathbf{else}:\\
\;\;\;\;\frac{\frac{y}{z}}{-3}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -5.19999999999999976e58

    1. Initial program 99.9%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg99.9%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg99.9%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-199.9%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative99.9%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac99.8%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define99.8%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval99.8%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*99.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative99.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 93.7%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around 0 68.0%

      \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{z}} \]
    7. Step-by-step derivation
      1. clear-num67.9%

        \[\leadsto y \cdot \color{blue}{\frac{1}{\frac{z}{-0.3333333333333333}}} \]
      2. div-inv68.0%

        \[\leadsto y \cdot \frac{1}{\color{blue}{z \cdot \frac{1}{-0.3333333333333333}}} \]
      3. metadata-eval68.0%

        \[\leadsto y \cdot \frac{1}{z \cdot \color{blue}{-3}} \]
      4. div-inv68.0%

        \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]
    8. Applied egg-rr68.0%

      \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]

    if -5.19999999999999976e58 < y < 380

    1. Initial program 91.4%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 69.2%

      \[\leadsto \color{blue}{\frac{0.3333333333333333 \cdot \frac{t}{y} - 0.3333333333333333 \cdot y}{z}} \]
    4. Taylor expanded in t around inf 62.6%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]

    if 380 < y < 3.00000000000000006e56

    1. Initial program 100.0%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg100.0%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+100.0%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg100.0%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-1100.0%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative100.0%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac100.0%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define100.0%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval100.0%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*100.0%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative100.0%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 91.2%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around inf 81.7%

      \[\leadsto y \cdot \color{blue}{\frac{x}{y}} \]
    7. Step-by-step derivation
      1. clear-num81.6%

        \[\leadsto y \cdot \color{blue}{\frac{1}{\frac{y}{x}}} \]
      2. un-div-inv82.0%

        \[\leadsto \color{blue}{\frac{y}{\frac{y}{x}}} \]
    8. Applied egg-rr82.0%

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

    if 3.00000000000000006e56 < y

    1. Initial program 95.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg95.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+95.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg95.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-195.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative95.5%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac95.5%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define95.5%

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

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*95.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative95.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified95.5%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 91.5%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around 0 75.6%

      \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{z}} \]
    7. Step-by-step derivation
      1. clear-num75.6%

        \[\leadsto y \cdot \color{blue}{\frac{1}{\frac{z}{-0.3333333333333333}}} \]
      2. div-inv75.7%

        \[\leadsto y \cdot \frac{1}{\color{blue}{z \cdot \frac{1}{-0.3333333333333333}}} \]
      3. metadata-eval75.7%

        \[\leadsto y \cdot \frac{1}{z \cdot \color{blue}{-3}} \]
      4. div-inv75.7%

        \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]
      5. associate-/r*75.7%

        \[\leadsto \color{blue}{\frac{\frac{y}{z}}{-3}} \]
    8. Applied egg-rr75.7%

      \[\leadsto \color{blue}{\frac{\frac{y}{z}}{-3}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification67.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+58}:\\ \;\;\;\;\frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 380:\\ \;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \mathbf{elif}\;y \leq 3 \cdot 10^{+56}:\\ \;\;\;\;\frac{y}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{y}{z}}{-3}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 75.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -2.4 \cdot 10^{-6} \lor \neg \left(t \leq 2.5 \cdot 10^{-133}\right):\\ \;\;\;\;\frac{0.3333333333333333}{z} \cdot \left(\frac{t}{y} - y\right)\\ \mathbf{else}:\\ \;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= t -2.4e-6) (not (<= t 2.5e-133)))
   (* (/ 0.3333333333333333 z) (- (/ t y) y))
   (- x (/ (* y 0.3333333333333333) z))))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((t <= -2.4e-6) || !(t <= 2.5e-133)) {
		tmp = (0.3333333333333333 / z) * ((t / y) - y);
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((t <= (-2.4d-6)) .or. (.not. (t <= 2.5d-133))) then
        tmp = (0.3333333333333333d0 / z) * ((t / y) - y)
    else
        tmp = x - ((y * 0.3333333333333333d0) / z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((t <= -2.4e-6) || !(t <= 2.5e-133)) {
		tmp = (0.3333333333333333 / z) * ((t / y) - y);
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (t <= -2.4e-6) or not (t <= 2.5e-133):
		tmp = (0.3333333333333333 / z) * ((t / y) - y)
	else:
		tmp = x - ((y * 0.3333333333333333) / z)
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((t <= -2.4e-6) || !(t <= 2.5e-133))
		tmp = Float64(Float64(0.3333333333333333 / z) * Float64(Float64(t / y) - y));
	else
		tmp = Float64(x - Float64(Float64(y * 0.3333333333333333) / z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((t <= -2.4e-6) || ~((t <= 2.5e-133)))
		tmp = (0.3333333333333333 / z) * ((t / y) - y);
	else
		tmp = x - ((y * 0.3333333333333333) / z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[t, -2.4e-6], N[Not[LessEqual[t, 2.5e-133]], $MachinePrecision]], N[(N[(0.3333333333333333 / z), $MachinePrecision] * N[(N[(t / y), $MachinePrecision] - y), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[(y * 0.3333333333333333), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -2.4 \cdot 10^{-6} \lor \neg \left(t \leq 2.5 \cdot 10^{-133}\right):\\
\;\;\;\;\frac{0.3333333333333333}{z} \cdot \left(\frac{t}{y} - y\right)\\

\mathbf{else}:\\
\;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -2.3999999999999999e-6 or 2.5e-133 < t

    1. Initial program 96.2%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 78.7%

      \[\leadsto \color{blue}{\frac{0.3333333333333333 \cdot \frac{t}{y} - 0.3333333333333333 \cdot y}{z}} \]
    4. Taylor expanded in t around 0 79.9%

      \[\leadsto \color{blue}{-0.3333333333333333 \cdot \frac{y}{z} + 0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]
    5. Step-by-step derivation
      1. associate-*r/79.9%

        \[\leadsto -0.3333333333333333 \cdot \frac{y}{z} + \color{blue}{\frac{0.3333333333333333 \cdot t}{y \cdot z}} \]
      2. associate-*l/79.9%

        \[\leadsto -0.3333333333333333 \cdot \frac{y}{z} + \color{blue}{\frac{0.3333333333333333}{y \cdot z} \cdot t} \]
      3. +-commutative79.9%

        \[\leadsto \color{blue}{\frac{0.3333333333333333}{y \cdot z} \cdot t + -0.3333333333333333 \cdot \frac{y}{z}} \]
      4. associate-*l/79.9%

        \[\leadsto \color{blue}{\frac{0.3333333333333333 \cdot t}{y \cdot z}} + -0.3333333333333333 \cdot \frac{y}{z} \]
      5. *-commutative79.9%

        \[\leadsto \frac{0.3333333333333333 \cdot t}{\color{blue}{z \cdot y}} + -0.3333333333333333 \cdot \frac{y}{z} \]
      6. times-frac78.1%

        \[\leadsto \color{blue}{\frac{0.3333333333333333}{z} \cdot \frac{t}{y}} + -0.3333333333333333 \cdot \frac{y}{z} \]
      7. metadata-eval78.1%

        \[\leadsto \frac{\color{blue}{0.3333333333333333 \cdot 1}}{z} \cdot \frac{t}{y} + -0.3333333333333333 \cdot \frac{y}{z} \]
      8. associate-*r/78.1%

        \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{z}\right)} \cdot \frac{t}{y} + -0.3333333333333333 \cdot \frac{y}{z} \]
      9. associate-*r/78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \color{blue}{\frac{-0.3333333333333333 \cdot y}{z}} \]
      10. associate-*l/78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \color{blue}{\frac{-0.3333333333333333}{z} \cdot y} \]
      11. metadata-eval78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \frac{\color{blue}{1 \cdot -0.3333333333333333}}{z} \cdot y \]
      12. associate-*l/78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \color{blue}{\left(\frac{1}{z} \cdot -0.3333333333333333\right)} \cdot y \]
      13. associate-*l*78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \color{blue}{\frac{1}{z} \cdot \left(-0.3333333333333333 \cdot y\right)} \]
      14. metadata-eval78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \frac{1}{z} \cdot \left(\color{blue}{\left(-0.3333333333333333\right)} \cdot y\right) \]
      15. distribute-lft-neg-in78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \frac{1}{z} \cdot \color{blue}{\left(-0.3333333333333333 \cdot y\right)} \]
      16. distribute-rgt-neg-in78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \frac{1}{z} \cdot \color{blue}{\left(0.3333333333333333 \cdot \left(-y\right)\right)} \]
      17. associate-*r*78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \color{blue}{\left(\frac{1}{z} \cdot 0.3333333333333333\right) \cdot \left(-y\right)} \]
      18. *-commutative78.1%

        \[\leadsto \left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \frac{t}{y} + \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{z}\right)} \cdot \left(-y\right) \]
      19. distribute-lft-in78.7%

        \[\leadsto \color{blue}{\left(0.3333333333333333 \cdot \frac{1}{z}\right) \cdot \left(\frac{t}{y} + \left(-y\right)\right)} \]
      20. associate-*r/78.7%

        \[\leadsto \color{blue}{\frac{0.3333333333333333 \cdot 1}{z}} \cdot \left(\frac{t}{y} + \left(-y\right)\right) \]
      21. metadata-eval78.7%

        \[\leadsto \frac{\color{blue}{0.3333333333333333}}{z} \cdot \left(\frac{t}{y} + \left(-y\right)\right) \]
      22. sub-neg78.7%

        \[\leadsto \frac{0.3333333333333333}{z} \cdot \color{blue}{\left(\frac{t}{y} - y\right)} \]
    6. Simplified78.7%

      \[\leadsto \color{blue}{\frac{0.3333333333333333}{z} \cdot \left(\frac{t}{y} - y\right)} \]

    if -2.3999999999999999e-6 < t < 2.5e-133

    1. Initial program 91.9%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg91.9%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+91.9%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg91.9%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-191.9%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative91.9%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac91.9%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define91.9%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval91.9%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*91.9%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative91.9%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified91.9%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 86.0%

      \[\leadsto \color{blue}{x + -0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. metadata-eval86.0%

        \[\leadsto x + \color{blue}{\left(-0.3333333333333333\right)} \cdot \frac{y}{z} \]
      2. cancel-sign-sub-inv86.0%

        \[\leadsto \color{blue}{x - 0.3333333333333333 \cdot \frac{y}{z}} \]
      3. associate-*r/86.1%

        \[\leadsto x - \color{blue}{\frac{0.3333333333333333 \cdot y}{z}} \]
      4. *-commutative86.1%

        \[\leadsto x - \frac{\color{blue}{y \cdot 0.3333333333333333}}{z} \]
    7. Simplified86.1%

      \[\leadsto \color{blue}{x - \frac{y \cdot 0.3333333333333333}{z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification81.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -2.4 \cdot 10^{-6} \lor \neg \left(t \leq 2.5 \cdot 10^{-133}\right):\\ \;\;\;\;\frac{0.3333333333333333}{z} \cdot \left(\frac{t}{y} - y\right)\\ \mathbf{else}:\\ \;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 91.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.2 \cdot 10^{+58}:\\ \;\;\;\;x + \frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 3.5 \cdot 10^{-27}:\\ \;\;\;\;x + \frac{0.3333333333333333}{y \cdot \frac{z}{t}}\\ \mathbf{else}:\\ \;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= y -5.2e+58)
   (+ x (/ y (* z -3.0)))
   (if (<= y 3.5e-27)
     (+ x (/ 0.3333333333333333 (* y (/ z t))))
     (- x (/ (* y 0.3333333333333333) z)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -5.2e+58) {
		tmp = x + (y / (z * -3.0));
	} else if (y <= 3.5e-27) {
		tmp = x + (0.3333333333333333 / (y * (z / t)));
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (y <= (-5.2d+58)) then
        tmp = x + (y / (z * (-3.0d0)))
    else if (y <= 3.5d-27) then
        tmp = x + (0.3333333333333333d0 / (y * (z / t)))
    else
        tmp = x - ((y * 0.3333333333333333d0) / z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -5.2e+58) {
		tmp = x + (y / (z * -3.0));
	} else if (y <= 3.5e-27) {
		tmp = x + (0.3333333333333333 / (y * (z / t)));
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if y <= -5.2e+58:
		tmp = x + (y / (z * -3.0))
	elif y <= 3.5e-27:
		tmp = x + (0.3333333333333333 / (y * (z / t)))
	else:
		tmp = x - ((y * 0.3333333333333333) / z)
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (y <= -5.2e+58)
		tmp = Float64(x + Float64(y / Float64(z * -3.0)));
	elseif (y <= 3.5e-27)
		tmp = Float64(x + Float64(0.3333333333333333 / Float64(y * Float64(z / t))));
	else
		tmp = Float64(x - Float64(Float64(y * 0.3333333333333333) / z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (y <= -5.2e+58)
		tmp = x + (y / (z * -3.0));
	elseif (y <= 3.5e-27)
		tmp = x + (0.3333333333333333 / (y * (z / t)));
	else
		tmp = x - ((y * 0.3333333333333333) / z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[y, -5.2e+58], N[(x + N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.5e-27], N[(x + N[(0.3333333333333333 / N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[(y * 0.3333333333333333), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.2 \cdot 10^{+58}:\\
\;\;\;\;x + \frac{y}{z \cdot -3}\\

\mathbf{elif}\;y \leq 3.5 \cdot 10^{-27}:\\
\;\;\;\;x + \frac{0.3333333333333333}{y \cdot \frac{z}{t}}\\

\mathbf{else}:\\
\;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -5.19999999999999976e58

    1. Initial program 99.9%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg99.9%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg99.9%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg99.9%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg99.9%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg99.9%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-199.9%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative99.9%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*99.9%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative99.9%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-199.9%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac99.9%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--99.9%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative99.9%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*99.8%

        \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
      16. metadata-eval99.8%

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 93.7%

      \[\leadsto x + \color{blue}{-0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. *-commutative93.7%

        \[\leadsto x + \color{blue}{\frac{y}{z} \cdot -0.3333333333333333} \]
      2. metadata-eval93.7%

        \[\leadsto x + \frac{y}{z} \cdot \color{blue}{\frac{1}{-3}} \]
      3. times-frac93.8%

        \[\leadsto x + \color{blue}{\frac{y \cdot 1}{z \cdot -3}} \]
      4. *-rgt-identity93.8%

        \[\leadsto x + \frac{\color{blue}{y}}{z \cdot -3} \]
    7. Simplified93.8%

      \[\leadsto x + \color{blue}{\frac{y}{z \cdot -3}} \]

    if -5.19999999999999976e58 < y < 3.5000000000000001e-27

    1. Initial program 91.2%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg91.2%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+91.2%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg91.2%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg91.2%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg91.2%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg91.2%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-191.2%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative91.2%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*91.2%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative91.2%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-191.2%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac93.3%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--93.3%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative93.3%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*93.3%

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

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified93.3%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. div-inv93.3%

        \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \left(y - \color{blue}{t \cdot \frac{1}{y}}\right) \]
    6. Applied egg-rr93.3%

      \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \left(y - \color{blue}{t \cdot \frac{1}{y}}\right) \]
    7. Taylor expanded in y around 0 86.2%

      \[\leadsto x + \color{blue}{0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]
    8. Step-by-step derivation
      1. *-commutative86.2%

        \[\leadsto x + 0.3333333333333333 \cdot \frac{t}{\color{blue}{z \cdot y}} \]
      2. associate-/r*91.4%

        \[\leadsto x + 0.3333333333333333 \cdot \color{blue}{\frac{\frac{t}{z}}{y}} \]
    9. Simplified91.4%

      \[\leadsto x + \color{blue}{0.3333333333333333 \cdot \frac{\frac{t}{z}}{y}} \]
    10. Step-by-step derivation
      1. clear-num91.4%

        \[\leadsto x + 0.3333333333333333 \cdot \color{blue}{\frac{1}{\frac{y}{\frac{t}{z}}}} \]
      2. un-div-inv91.4%

        \[\leadsto x + \color{blue}{\frac{0.3333333333333333}{\frac{y}{\frac{t}{z}}}} \]
      3. div-inv90.9%

        \[\leadsto x + \frac{0.3333333333333333}{\color{blue}{y \cdot \frac{1}{\frac{t}{z}}}} \]
      4. clear-num91.4%

        \[\leadsto x + \frac{0.3333333333333333}{y \cdot \color{blue}{\frac{z}{t}}} \]
    11. Applied egg-rr91.4%

      \[\leadsto x + \color{blue}{\frac{0.3333333333333333}{y \cdot \frac{z}{t}}} \]

    if 3.5000000000000001e-27 < y

    1. Initial program 96.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg96.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+96.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg96.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-196.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative96.5%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac96.4%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define96.4%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval96.4%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*96.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative96.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified96.5%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 90.3%

      \[\leadsto \color{blue}{x + -0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. metadata-eval90.3%

        \[\leadsto x + \color{blue}{\left(-0.3333333333333333\right)} \cdot \frac{y}{z} \]
      2. cancel-sign-sub-inv90.3%

        \[\leadsto \color{blue}{x - 0.3333333333333333 \cdot \frac{y}{z}} \]
      3. associate-*r/90.4%

        \[\leadsto x - \color{blue}{\frac{0.3333333333333333 \cdot y}{z}} \]
      4. *-commutative90.4%

        \[\leadsto x - \frac{\color{blue}{y \cdot 0.3333333333333333}}{z} \]
    7. Simplified90.4%

      \[\leadsto \color{blue}{x - \frac{y \cdot 0.3333333333333333}{z}} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 6: 91.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.8 \cdot 10^{+58}:\\ \;\;\;\;x + \frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 3.8 \cdot 10^{-24}:\\ \;\;\;\;x + 0.3333333333333333 \cdot \frac{\frac{t}{z}}{y}\\ \mathbf{else}:\\ \;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= y -6.8e+58)
   (+ x (/ y (* z -3.0)))
   (if (<= y 3.8e-24)
     (+ x (* 0.3333333333333333 (/ (/ t z) y)))
     (- x (/ (* y 0.3333333333333333) z)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -6.8e+58) {
		tmp = x + (y / (z * -3.0));
	} else if (y <= 3.8e-24) {
		tmp = x + (0.3333333333333333 * ((t / z) / y));
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (y <= (-6.8d+58)) then
        tmp = x + (y / (z * (-3.0d0)))
    else if (y <= 3.8d-24) then
        tmp = x + (0.3333333333333333d0 * ((t / z) / y))
    else
        tmp = x - ((y * 0.3333333333333333d0) / z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -6.8e+58) {
		tmp = x + (y / (z * -3.0));
	} else if (y <= 3.8e-24) {
		tmp = x + (0.3333333333333333 * ((t / z) / y));
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if y <= -6.8e+58:
		tmp = x + (y / (z * -3.0))
	elif y <= 3.8e-24:
		tmp = x + (0.3333333333333333 * ((t / z) / y))
	else:
		tmp = x - ((y * 0.3333333333333333) / z)
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (y <= -6.8e+58)
		tmp = Float64(x + Float64(y / Float64(z * -3.0)));
	elseif (y <= 3.8e-24)
		tmp = Float64(x + Float64(0.3333333333333333 * Float64(Float64(t / z) / y)));
	else
		tmp = Float64(x - Float64(Float64(y * 0.3333333333333333) / z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (y <= -6.8e+58)
		tmp = x + (y / (z * -3.0));
	elseif (y <= 3.8e-24)
		tmp = x + (0.3333333333333333 * ((t / z) / y));
	else
		tmp = x - ((y * 0.3333333333333333) / z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[y, -6.8e+58], N[(x + N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.8e-24], N[(x + N[(0.3333333333333333 * N[(N[(t / z), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[(y * 0.3333333333333333), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.8 \cdot 10^{+58}:\\
\;\;\;\;x + \frac{y}{z \cdot -3}\\

\mathbf{elif}\;y \leq 3.8 \cdot 10^{-24}:\\
\;\;\;\;x + 0.3333333333333333 \cdot \frac{\frac{t}{z}}{y}\\

\mathbf{else}:\\
\;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -6.8000000000000001e58

    1. Initial program 99.9%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg99.9%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+99.9%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg99.9%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg99.9%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg99.9%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg99.9%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-199.9%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative99.9%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*99.9%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative99.9%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-199.9%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac99.9%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--99.9%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative99.9%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*99.8%

        \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
      16. metadata-eval99.8%

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 93.7%

      \[\leadsto x + \color{blue}{-0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. *-commutative93.7%

        \[\leadsto x + \color{blue}{\frac{y}{z} \cdot -0.3333333333333333} \]
      2. metadata-eval93.7%

        \[\leadsto x + \frac{y}{z} \cdot \color{blue}{\frac{1}{-3}} \]
      3. times-frac93.8%

        \[\leadsto x + \color{blue}{\frac{y \cdot 1}{z \cdot -3}} \]
      4. *-rgt-identity93.8%

        \[\leadsto x + \frac{\color{blue}{y}}{z \cdot -3} \]
    7. Simplified93.8%

      \[\leadsto x + \color{blue}{\frac{y}{z \cdot -3}} \]

    if -6.8000000000000001e58 < y < 3.80000000000000026e-24

    1. Initial program 91.2%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg91.2%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+91.2%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg91.2%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg91.2%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg91.2%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg91.2%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-191.2%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative91.2%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*91.2%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative91.2%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-191.2%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac93.3%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--93.3%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative93.3%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*93.3%

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

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified93.3%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Step-by-step derivation
      1. div-inv93.3%

        \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \left(y - \color{blue}{t \cdot \frac{1}{y}}\right) \]
    6. Applied egg-rr93.3%

      \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \left(y - \color{blue}{t \cdot \frac{1}{y}}\right) \]
    7. Taylor expanded in y around 0 86.2%

      \[\leadsto x + \color{blue}{0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]
    8. Step-by-step derivation
      1. *-commutative86.2%

        \[\leadsto x + 0.3333333333333333 \cdot \frac{t}{\color{blue}{z \cdot y}} \]
      2. associate-/r*91.4%

        \[\leadsto x + 0.3333333333333333 \cdot \color{blue}{\frac{\frac{t}{z}}{y}} \]
    9. Simplified91.4%

      \[\leadsto x + \color{blue}{0.3333333333333333 \cdot \frac{\frac{t}{z}}{y}} \]

    if 3.80000000000000026e-24 < y

    1. Initial program 96.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg96.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+96.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg96.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-196.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative96.5%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac96.4%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define96.4%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval96.4%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*96.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative96.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified96.5%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 90.3%

      \[\leadsto \color{blue}{x + -0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. metadata-eval90.3%

        \[\leadsto x + \color{blue}{\left(-0.3333333333333333\right)} \cdot \frac{y}{z} \]
      2. cancel-sign-sub-inv90.3%

        \[\leadsto \color{blue}{x - 0.3333333333333333 \cdot \frac{y}{z}} \]
      3. associate-*r/90.4%

        \[\leadsto x - \color{blue}{\frac{0.3333333333333333 \cdot y}{z}} \]
      4. *-commutative90.4%

        \[\leadsto x - \frac{\color{blue}{y \cdot 0.3333333333333333}}{z} \]
    7. Simplified90.4%

      \[\leadsto \color{blue}{x - \frac{y \cdot 0.3333333333333333}{z}} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 7: 89.3% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4 \cdot 10^{+48}:\\ \;\;\;\;x + \frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 3.25 \cdot 10^{-24}:\\ \;\;\;\;x + 0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \mathbf{else}:\\ \;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= y -4e+48)
   (+ x (/ y (* z -3.0)))
   (if (<= y 3.25e-24)
     (+ x (* 0.3333333333333333 (/ t (* z y))))
     (- x (/ (* y 0.3333333333333333) z)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -4e+48) {
		tmp = x + (y / (z * -3.0));
	} else if (y <= 3.25e-24) {
		tmp = x + (0.3333333333333333 * (t / (z * y)));
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (y <= (-4d+48)) then
        tmp = x + (y / (z * (-3.0d0)))
    else if (y <= 3.25d-24) then
        tmp = x + (0.3333333333333333d0 * (t / (z * y)))
    else
        tmp = x - ((y * 0.3333333333333333d0) / z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -4e+48) {
		tmp = x + (y / (z * -3.0));
	} else if (y <= 3.25e-24) {
		tmp = x + (0.3333333333333333 * (t / (z * y)));
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if y <= -4e+48:
		tmp = x + (y / (z * -3.0))
	elif y <= 3.25e-24:
		tmp = x + (0.3333333333333333 * (t / (z * y)))
	else:
		tmp = x - ((y * 0.3333333333333333) / z)
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (y <= -4e+48)
		tmp = Float64(x + Float64(y / Float64(z * -3.0)));
	elseif (y <= 3.25e-24)
		tmp = Float64(x + Float64(0.3333333333333333 * Float64(t / Float64(z * y))));
	else
		tmp = Float64(x - Float64(Float64(y * 0.3333333333333333) / z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (y <= -4e+48)
		tmp = x + (y / (z * -3.0));
	elseif (y <= 3.25e-24)
		tmp = x + (0.3333333333333333 * (t / (z * y)));
	else
		tmp = x - ((y * 0.3333333333333333) / z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[y, -4e+48], N[(x + N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.25e-24], N[(x + N[(0.3333333333333333 * N[(t / N[(z * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[(y * 0.3333333333333333), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -4 \cdot 10^{+48}:\\
\;\;\;\;x + \frac{y}{z \cdot -3}\\

\mathbf{elif}\;y \leq 3.25 \cdot 10^{-24}:\\
\;\;\;\;x + 0.3333333333333333 \cdot \frac{t}{z \cdot y}\\

\mathbf{else}:\\
\;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -4.00000000000000018e48

    1. Initial program 98.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg98.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+98.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg98.5%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg98.5%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg98.5%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg98.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-198.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative98.5%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*98.5%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative98.5%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-198.5%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac99.9%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--99.9%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative99.9%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*99.8%

        \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
      16. metadata-eval99.8%

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 91.5%

      \[\leadsto x + \color{blue}{-0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. *-commutative91.5%

        \[\leadsto x + \color{blue}{\frac{y}{z} \cdot -0.3333333333333333} \]
      2. metadata-eval91.5%

        \[\leadsto x + \frac{y}{z} \cdot \color{blue}{\frac{1}{-3}} \]
      3. times-frac91.6%

        \[\leadsto x + \color{blue}{\frac{y \cdot 1}{z \cdot -3}} \]
      4. *-rgt-identity91.6%

        \[\leadsto x + \frac{\color{blue}{y}}{z \cdot -3} \]
    7. Simplified91.6%

      \[\leadsto x + \color{blue}{\frac{y}{z \cdot -3}} \]

    if -4.00000000000000018e48 < y < 3.25e-24

    1. Initial program 91.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg91.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+91.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg91.5%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg91.5%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg91.5%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg91.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-191.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative91.5%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*91.5%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative91.5%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-191.5%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac93.0%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--93.0%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative93.0%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*93.0%

        \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
      16. metadata-eval93.0%

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified93.0%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 87.5%

      \[\leadsto x + \color{blue}{0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]

    if 3.25e-24 < y

    1. Initial program 96.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg96.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+96.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg96.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-196.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative96.5%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac96.4%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define96.4%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval96.4%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*96.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative96.5%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified96.5%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 90.3%

      \[\leadsto \color{blue}{x + -0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. metadata-eval90.3%

        \[\leadsto x + \color{blue}{\left(-0.3333333333333333\right)} \cdot \frac{y}{z} \]
      2. cancel-sign-sub-inv90.3%

        \[\leadsto \color{blue}{x - 0.3333333333333333 \cdot \frac{y}{z}} \]
      3. associate-*r/90.4%

        \[\leadsto x - \color{blue}{\frac{0.3333333333333333 \cdot y}{z}} \]
      4. *-commutative90.4%

        \[\leadsto x - \frac{\color{blue}{y \cdot 0.3333333333333333}}{z} \]
    7. Simplified90.4%

      \[\leadsto \color{blue}{x - \frac{y \cdot 0.3333333333333333}{z}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4 \cdot 10^{+48}:\\ \;\;\;\;x + \frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 3.25 \cdot 10^{-24}:\\ \;\;\;\;x + 0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \mathbf{else}:\\ \;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 77.2% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -2.2 \cdot 10^{-23} \lor \neg \left(y \leq 2.55 \cdot 10^{-57}\right):\\ \;\;\;\;x + \frac{y}{z \cdot -3}\\ \mathbf{else}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= y -2.2e-23) (not (<= y 2.55e-57)))
   (+ x (/ y (* z -3.0)))
   (* 0.3333333333333333 (/ t (* z y)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -2.2e-23) || !(y <= 2.55e-57)) {
		tmp = x + (y / (z * -3.0));
	} else {
		tmp = 0.3333333333333333 * (t / (z * y));
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((y <= (-2.2d-23)) .or. (.not. (y <= 2.55d-57))) then
        tmp = x + (y / (z * (-3.0d0)))
    else
        tmp = 0.3333333333333333d0 * (t / (z * y))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -2.2e-23) || !(y <= 2.55e-57)) {
		tmp = x + (y / (z * -3.0));
	} else {
		tmp = 0.3333333333333333 * (t / (z * y));
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (y <= -2.2e-23) or not (y <= 2.55e-57):
		tmp = x + (y / (z * -3.0))
	else:
		tmp = 0.3333333333333333 * (t / (z * y))
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((y <= -2.2e-23) || !(y <= 2.55e-57))
		tmp = Float64(x + Float64(y / Float64(z * -3.0)));
	else
		tmp = Float64(0.3333333333333333 * Float64(t / Float64(z * y)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((y <= -2.2e-23) || ~((y <= 2.55e-57)))
		tmp = x + (y / (z * -3.0));
	else
		tmp = 0.3333333333333333 * (t / (z * y));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[y, -2.2e-23], N[Not[LessEqual[y, 2.55e-57]], $MachinePrecision]], N[(x + N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(0.3333333333333333 * N[(t / N[(z * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.2 \cdot 10^{-23} \lor \neg \left(y \leq 2.55 \cdot 10^{-57}\right):\\
\;\;\;\;x + \frac{y}{z \cdot -3}\\

\mathbf{else}:\\
\;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -2.1999999999999999e-23 or 2.55e-57 < y

    1. Initial program 97.8%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg97.8%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+97.8%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg97.8%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg97.8%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg97.8%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg97.8%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-197.8%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative97.8%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*97.8%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative97.8%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-197.8%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac99.1%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--99.7%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative99.7%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*99.7%

        \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
      16. metadata-eval99.7%

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 86.4%

      \[\leadsto x + \color{blue}{-0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. *-commutative86.4%

        \[\leadsto x + \color{blue}{\frac{y}{z} \cdot -0.3333333333333333} \]
      2. metadata-eval86.4%

        \[\leadsto x + \frac{y}{z} \cdot \color{blue}{\frac{1}{-3}} \]
      3. times-frac86.5%

        \[\leadsto x + \color{blue}{\frac{y \cdot 1}{z \cdot -3}} \]
      4. *-rgt-identity86.5%

        \[\leadsto x + \frac{\color{blue}{y}}{z \cdot -3} \]
    7. Simplified86.5%

      \[\leadsto x + \color{blue}{\frac{y}{z \cdot -3}} \]

    if -2.1999999999999999e-23 < y < 2.55e-57

    1. Initial program 90.2%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 69.7%

      \[\leadsto \color{blue}{\frac{0.3333333333333333 \cdot \frac{t}{y} - 0.3333333333333333 \cdot y}{z}} \]
    4. Taylor expanded in t around inf 68.6%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification79.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.2 \cdot 10^{-23} \lor \neg \left(y \leq 2.55 \cdot 10^{-57}\right):\\ \;\;\;\;x + \frac{y}{z \cdot -3}\\ \mathbf{else}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 77.2% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.8 \cdot 10^{-23} \lor \neg \left(y \leq 3.2 \cdot 10^{-57}\right):\\ \;\;\;\;x + y \cdot \frac{-0.3333333333333333}{z}\\ \mathbf{else}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= y -3.8e-23) (not (<= y 3.2e-57)))
   (+ x (* y (/ -0.3333333333333333 z)))
   (* 0.3333333333333333 (/ t (* z y)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -3.8e-23) || !(y <= 3.2e-57)) {
		tmp = x + (y * (-0.3333333333333333 / z));
	} else {
		tmp = 0.3333333333333333 * (t / (z * y));
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((y <= (-3.8d-23)) .or. (.not. (y <= 3.2d-57))) then
        tmp = x + (y * ((-0.3333333333333333d0) / z))
    else
        tmp = 0.3333333333333333d0 * (t / (z * y))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -3.8e-23) || !(y <= 3.2e-57)) {
		tmp = x + (y * (-0.3333333333333333 / z));
	} else {
		tmp = 0.3333333333333333 * (t / (z * y));
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (y <= -3.8e-23) or not (y <= 3.2e-57):
		tmp = x + (y * (-0.3333333333333333 / z))
	else:
		tmp = 0.3333333333333333 * (t / (z * y))
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((y <= -3.8e-23) || !(y <= 3.2e-57))
		tmp = Float64(x + Float64(y * Float64(-0.3333333333333333 / z)));
	else
		tmp = Float64(0.3333333333333333 * Float64(t / Float64(z * y)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((y <= -3.8e-23) || ~((y <= 3.2e-57)))
		tmp = x + (y * (-0.3333333333333333 / z));
	else
		tmp = 0.3333333333333333 * (t / (z * y));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[y, -3.8e-23], N[Not[LessEqual[y, 3.2e-57]], $MachinePrecision]], N[(x + N[(y * N[(-0.3333333333333333 / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(0.3333333333333333 * N[(t / N[(z * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.8 \cdot 10^{-23} \lor \neg \left(y \leq 3.2 \cdot 10^{-57}\right):\\
\;\;\;\;x + y \cdot \frac{-0.3333333333333333}{z}\\

\mathbf{else}:\\
\;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.80000000000000011e-23 or 3.2000000000000001e-57 < y

    1. Initial program 97.8%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg97.8%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+97.8%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg97.8%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg97.8%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg97.8%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg97.8%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-197.8%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative97.8%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*97.8%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative97.8%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-197.8%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac99.1%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--99.7%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative99.7%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*99.7%

        \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
      16. metadata-eval99.7%

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified99.7%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 86.4%

      \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \color{blue}{y} \]

    if -3.80000000000000011e-23 < y < 3.2000000000000001e-57

    1. Initial program 90.2%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 69.7%

      \[\leadsto \color{blue}{\frac{0.3333333333333333 \cdot \frac{t}{y} - 0.3333333333333333 \cdot y}{z}} \]
    4. Taylor expanded in t around inf 68.6%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.8 \cdot 10^{-23} \lor \neg \left(y \leq 3.2 \cdot 10^{-57}\right):\\ \;\;\;\;x + y \cdot \frac{-0.3333333333333333}{z}\\ \mathbf{else}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 77.2% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.2 \cdot 10^{-23}:\\ \;\;\;\;x + \frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 2.3 \cdot 10^{-57}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \mathbf{else}:\\ \;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= y -6.2e-23)
   (+ x (/ y (* z -3.0)))
   (if (<= y 2.3e-57)
     (* 0.3333333333333333 (/ t (* z y)))
     (- x (/ (* y 0.3333333333333333) z)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -6.2e-23) {
		tmp = x + (y / (z * -3.0));
	} else if (y <= 2.3e-57) {
		tmp = 0.3333333333333333 * (t / (z * y));
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (y <= (-6.2d-23)) then
        tmp = x + (y / (z * (-3.0d0)))
    else if (y <= 2.3d-57) then
        tmp = 0.3333333333333333d0 * (t / (z * y))
    else
        tmp = x - ((y * 0.3333333333333333d0) / z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -6.2e-23) {
		tmp = x + (y / (z * -3.0));
	} else if (y <= 2.3e-57) {
		tmp = 0.3333333333333333 * (t / (z * y));
	} else {
		tmp = x - ((y * 0.3333333333333333) / z);
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if y <= -6.2e-23:
		tmp = x + (y / (z * -3.0))
	elif y <= 2.3e-57:
		tmp = 0.3333333333333333 * (t / (z * y))
	else:
		tmp = x - ((y * 0.3333333333333333) / z)
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (y <= -6.2e-23)
		tmp = Float64(x + Float64(y / Float64(z * -3.0)));
	elseif (y <= 2.3e-57)
		tmp = Float64(0.3333333333333333 * Float64(t / Float64(z * y)));
	else
		tmp = Float64(x - Float64(Float64(y * 0.3333333333333333) / z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (y <= -6.2e-23)
		tmp = x + (y / (z * -3.0));
	elseif (y <= 2.3e-57)
		tmp = 0.3333333333333333 * (t / (z * y));
	else
		tmp = x - ((y * 0.3333333333333333) / z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[y, -6.2e-23], N[(x + N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.3e-57], N[(0.3333333333333333 * N[(t / N[(z * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[(y * 0.3333333333333333), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.2 \cdot 10^{-23}:\\
\;\;\;\;x + \frac{y}{z \cdot -3}\\

\mathbf{elif}\;y \leq 2.3 \cdot 10^{-57}:\\
\;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\

\mathbf{else}:\\
\;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -6.1999999999999998e-23

    1. Initial program 98.7%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg98.7%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+98.7%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. remove-double-neg98.7%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
      4. distribute-frac-neg98.7%

        \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
      5. sub-neg98.7%

        \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      6. distribute-frac-neg98.7%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. neg-mul-198.7%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      8. *-commutative98.7%

        \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-/l*98.7%

        \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      10. *-commutative98.7%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
      11. neg-mul-198.7%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
      12. times-frac99.8%

        \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
      13. distribute-lft-out--99.8%

        \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
      14. *-commutative99.8%

        \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
      15. associate-/r*99.8%

        \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
      16. metadata-eval99.8%

        \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
    3. Simplified99.8%

      \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 85.2%

      \[\leadsto x + \color{blue}{-0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. *-commutative85.2%

        \[\leadsto x + \color{blue}{\frac{y}{z} \cdot -0.3333333333333333} \]
      2. metadata-eval85.2%

        \[\leadsto x + \frac{y}{z} \cdot \color{blue}{\frac{1}{-3}} \]
      3. times-frac85.3%

        \[\leadsto x + \color{blue}{\frac{y \cdot 1}{z \cdot -3}} \]
      4. *-rgt-identity85.3%

        \[\leadsto x + \frac{\color{blue}{y}}{z \cdot -3} \]
    7. Simplified85.3%

      \[\leadsto x + \color{blue}{\frac{y}{z \cdot -3}} \]

    if -6.1999999999999998e-23 < y < 2.3e-57

    1. Initial program 90.2%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 69.7%

      \[\leadsto \color{blue}{\frac{0.3333333333333333 \cdot \frac{t}{y} - 0.3333333333333333 \cdot y}{z}} \]
    4. Taylor expanded in t around inf 68.6%

      \[\leadsto \color{blue}{0.3333333333333333 \cdot \frac{t}{y \cdot z}} \]

    if 2.3e-57 < y

    1. Initial program 96.7%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg96.7%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+96.7%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg96.7%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-196.7%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative96.7%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac96.6%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define96.6%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval96.6%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*96.6%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative96.6%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified96.6%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 87.9%

      \[\leadsto \color{blue}{x + -0.3333333333333333 \cdot \frac{y}{z}} \]
    6. Step-by-step derivation
      1. metadata-eval87.9%

        \[\leadsto x + \color{blue}{\left(-0.3333333333333333\right)} \cdot \frac{y}{z} \]
      2. cancel-sign-sub-inv87.9%

        \[\leadsto \color{blue}{x - 0.3333333333333333 \cdot \frac{y}{z}} \]
      3. associate-*r/88.0%

        \[\leadsto x - \color{blue}{\frac{0.3333333333333333 \cdot y}{z}} \]
      4. *-commutative88.0%

        \[\leadsto x - \frac{\color{blue}{y \cdot 0.3333333333333333}}{z} \]
    7. Simplified88.0%

      \[\leadsto \color{blue}{x - \frac{y \cdot 0.3333333333333333}{z}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification79.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6.2 \cdot 10^{-23}:\\ \;\;\;\;x + \frac{y}{z \cdot -3}\\ \mathbf{elif}\;y \leq 2.3 \cdot 10^{-57}:\\ \;\;\;\;0.3333333333333333 \cdot \frac{t}{z \cdot y}\\ \mathbf{else}:\\ \;\;\;\;x - \frac{y \cdot 0.3333333333333333}{z}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 48.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -98000000000 \lor \neg \left(y \leq 1.95 \cdot 10^{+56}\right):\\ \;\;\;\;\frac{\frac{y}{z}}{-3}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= y -98000000000.0) (not (<= y 1.95e+56))) (/ (/ y z) -3.0) x))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -98000000000.0) || !(y <= 1.95e+56)) {
		tmp = (y / z) / -3.0;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((y <= (-98000000000.0d0)) .or. (.not. (y <= 1.95d+56))) then
        tmp = (y / z) / (-3.0d0)
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -98000000000.0) || !(y <= 1.95e+56)) {
		tmp = (y / z) / -3.0;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (y <= -98000000000.0) or not (y <= 1.95e+56):
		tmp = (y / z) / -3.0
	else:
		tmp = x
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((y <= -98000000000.0) || !(y <= 1.95e+56))
		tmp = Float64(Float64(y / z) / -3.0);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((y <= -98000000000.0) || ~((y <= 1.95e+56)))
		tmp = (y / z) / -3.0;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[y, -98000000000.0], N[Not[LessEqual[y, 1.95e+56]], $MachinePrecision]], N[(N[(y / z), $MachinePrecision] / -3.0), $MachinePrecision], x]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -98000000000 \lor \neg \left(y \leq 1.95 \cdot 10^{+56}\right):\\
\;\;\;\;\frac{\frac{y}{z}}{-3}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -9.8e10 or 1.94999999999999997e56 < y

    1. Initial program 97.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg97.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+97.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg97.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-197.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative97.5%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac97.4%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define97.4%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval97.4%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*97.4%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative97.4%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified97.4%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 87.8%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around 0 65.7%

      \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{z}} \]
    7. Step-by-step derivation
      1. clear-num65.6%

        \[\leadsto y \cdot \color{blue}{\frac{1}{\frac{z}{-0.3333333333333333}}} \]
      2. div-inv65.7%

        \[\leadsto y \cdot \frac{1}{\color{blue}{z \cdot \frac{1}{-0.3333333333333333}}} \]
      3. metadata-eval65.7%

        \[\leadsto y \cdot \frac{1}{z \cdot \color{blue}{-3}} \]
      4. div-inv65.7%

        \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]
      5. associate-/r*65.7%

        \[\leadsto \color{blue}{\frac{\frac{y}{z}}{-3}} \]
    8. Applied egg-rr65.7%

      \[\leadsto \color{blue}{\frac{\frac{y}{z}}{-3}} \]

    if -9.8e10 < y < 1.94999999999999997e56

    1. Initial program 91.8%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg91.8%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+91.8%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg91.8%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-191.8%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative91.8%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac91.8%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define91.8%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval91.8%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*91.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative91.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified91.8%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 30.3%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification47.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -98000000000 \lor \neg \left(y \leq 1.95 \cdot 10^{+56}\right):\\ \;\;\;\;\frac{\frac{y}{z}}{-3}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 48.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -280000000000 \lor \neg \left(y \leq 1.25 \cdot 10^{+56}\right):\\ \;\;\;\;\frac{y}{z \cdot -3}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= y -280000000000.0) (not (<= y 1.25e+56))) (/ y (* z -3.0)) x))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -280000000000.0) || !(y <= 1.25e+56)) {
		tmp = y / (z * -3.0);
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((y <= (-280000000000.0d0)) .or. (.not. (y <= 1.25d+56))) then
        tmp = y / (z * (-3.0d0))
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -280000000000.0) || !(y <= 1.25e+56)) {
		tmp = y / (z * -3.0);
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (y <= -280000000000.0) or not (y <= 1.25e+56):
		tmp = y / (z * -3.0)
	else:
		tmp = x
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((y <= -280000000000.0) || !(y <= 1.25e+56))
		tmp = Float64(y / Float64(z * -3.0));
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((y <= -280000000000.0) || ~((y <= 1.25e+56)))
		tmp = y / (z * -3.0);
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[y, -280000000000.0], N[Not[LessEqual[y, 1.25e+56]], $MachinePrecision]], N[(y / N[(z * -3.0), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -280000000000 \lor \neg \left(y \leq 1.25 \cdot 10^{+56}\right):\\
\;\;\;\;\frac{y}{z \cdot -3}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -2.8e11 or 1.25000000000000006e56 < y

    1. Initial program 97.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg97.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+97.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg97.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-197.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative97.5%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac97.4%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define97.4%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval97.4%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*97.4%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative97.4%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified97.4%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 87.8%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around 0 65.7%

      \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{z}} \]
    7. Step-by-step derivation
      1. clear-num65.6%

        \[\leadsto y \cdot \color{blue}{\frac{1}{\frac{z}{-0.3333333333333333}}} \]
      2. div-inv65.7%

        \[\leadsto y \cdot \frac{1}{\color{blue}{z \cdot \frac{1}{-0.3333333333333333}}} \]
      3. metadata-eval65.7%

        \[\leadsto y \cdot \frac{1}{z \cdot \color{blue}{-3}} \]
      4. div-inv65.7%

        \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]
    8. Applied egg-rr65.7%

      \[\leadsto \color{blue}{\frac{y}{z \cdot -3}} \]

    if -2.8e11 < y < 1.25000000000000006e56

    1. Initial program 91.8%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg91.8%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+91.8%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg91.8%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-191.8%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative91.8%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac91.8%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define91.8%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval91.8%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*91.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative91.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified91.8%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 30.3%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification47.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -280000000000 \lor \neg \left(y \leq 1.25 \cdot 10^{+56}\right):\\ \;\;\;\;\frac{y}{z \cdot -3}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 48.4% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1620000000000 \lor \neg \left(y \leq 6.5 \cdot 10^{+55}\right):\\ \;\;\;\;y \cdot \frac{-0.3333333333333333}{z}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= y -1620000000000.0) (not (<= y 6.5e+55)))
   (* y (/ -0.3333333333333333 z))
   x))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -1620000000000.0) || !(y <= 6.5e+55)) {
		tmp = y * (-0.3333333333333333 / z);
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((y <= (-1620000000000.0d0)) .or. (.not. (y <= 6.5d+55))) then
        tmp = y * ((-0.3333333333333333d0) / z)
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -1620000000000.0) || !(y <= 6.5e+55)) {
		tmp = y * (-0.3333333333333333 / z);
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (y <= -1620000000000.0) or not (y <= 6.5e+55):
		tmp = y * (-0.3333333333333333 / z)
	else:
		tmp = x
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((y <= -1620000000000.0) || !(y <= 6.5e+55))
		tmp = Float64(y * Float64(-0.3333333333333333 / z));
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((y <= -1620000000000.0) || ~((y <= 6.5e+55)))
		tmp = y * (-0.3333333333333333 / z);
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[y, -1620000000000.0], N[Not[LessEqual[y, 6.5e+55]], $MachinePrecision]], N[(y * N[(-0.3333333333333333 / z), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1620000000000 \lor \neg \left(y \leq 6.5 \cdot 10^{+55}\right):\\
\;\;\;\;y \cdot \frac{-0.3333333333333333}{z}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.62e12 or 6.50000000000000027e55 < y

    1. Initial program 97.5%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg97.5%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+97.5%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg97.5%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-197.5%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative97.5%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac97.4%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define97.4%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval97.4%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*97.4%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative97.4%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified97.4%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around inf 87.8%

      \[\leadsto \color{blue}{y \cdot \left(\frac{x}{y} - 0.3333333333333333 \cdot \frac{1}{z}\right)} \]
    6. Taylor expanded in x around 0 65.7%

      \[\leadsto y \cdot \color{blue}{\frac{-0.3333333333333333}{z}} \]

    if -1.62e12 < y < 6.50000000000000027e55

    1. Initial program 91.8%

      \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. Step-by-step derivation
      1. sub-neg91.8%

        \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
      2. associate-+l+91.8%

        \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      3. distribute-frac-neg91.8%

        \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      4. neg-mul-191.8%

        \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      5. *-commutative91.8%

        \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      6. times-frac91.8%

        \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      7. fma-define91.8%

        \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
      8. metadata-eval91.8%

        \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
      9. associate-*l*91.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
      10. *-commutative91.8%

        \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
    3. Simplified91.8%

      \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in x around inf 30.3%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification47.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1620000000000 \lor \neg \left(y \leq 6.5 \cdot 10^{+55}\right):\\ \;\;\;\;y \cdot \frac{-0.3333333333333333}{z}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 96.0% accurate, 1.4× speedup?

\[\begin{array}{l} \\ x + \frac{y - \frac{t}{y}}{z \cdot -3} \end{array} \]
(FPCore (x y z t) :precision binary64 (+ x (/ (- y (/ t y)) (* z -3.0))))
double code(double x, double y, double z, double t) {
	return x + ((y - (t / y)) / (z * -3.0));
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = x + ((y - (t / y)) / (z * (-3.0d0)))
end function
public static double code(double x, double y, double z, double t) {
	return x + ((y - (t / y)) / (z * -3.0));
}
def code(x, y, z, t):
	return x + ((y - (t / y)) / (z * -3.0))
function code(x, y, z, t)
	return Float64(x + Float64(Float64(y - Float64(t / y)) / Float64(z * -3.0)))
end
function tmp = code(x, y, z, t)
	tmp = x + ((y - (t / y)) / (z * -3.0));
end
code[x_, y_, z_, t_] := N[(x + N[(N[(y - N[(t / y), $MachinePrecision]), $MachinePrecision] / N[(z * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \frac{y - \frac{t}{y}}{z \cdot -3}
\end{array}
Derivation
  1. Initial program 94.6%

    \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
  2. Step-by-step derivation
    1. sub-neg94.6%

      \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. associate-+l+94.6%

      \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
    3. remove-double-neg94.6%

      \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
    4. distribute-frac-neg94.6%

      \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
    5. sub-neg94.6%

      \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
    6. distribute-frac-neg94.6%

      \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    7. neg-mul-194.6%

      \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    8. *-commutative94.6%

      \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    9. associate-/l*94.6%

      \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    10. *-commutative94.6%

      \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    11. neg-mul-194.6%

      \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
    12. times-frac96.0%

      \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
    13. distribute-lft-out--96.4%

      \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
    14. *-commutative96.4%

      \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
    15. associate-/r*96.4%

      \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
    16. metadata-eval96.4%

      \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
  3. Simplified96.4%

    \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
  4. Add Preprocessing
  5. Step-by-step derivation
    1. div-inv96.4%

      \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \left(y - \color{blue}{t \cdot \frac{1}{y}}\right) \]
  6. Applied egg-rr96.4%

    \[\leadsto x + \frac{-0.3333333333333333}{z} \cdot \left(y - \color{blue}{t \cdot \frac{1}{y}}\right) \]
  7. Step-by-step derivation
    1. *-commutative96.4%

      \[\leadsto x + \color{blue}{\left(y - t \cdot \frac{1}{y}\right) \cdot \frac{-0.3333333333333333}{z}} \]
    2. clear-num96.4%

      \[\leadsto x + \left(y - t \cdot \frac{1}{y}\right) \cdot \color{blue}{\frac{1}{\frac{z}{-0.3333333333333333}}} \]
    3. un-div-inv96.4%

      \[\leadsto x + \color{blue}{\frac{y - t \cdot \frac{1}{y}}{\frac{z}{-0.3333333333333333}}} \]
    4. un-div-inv96.4%

      \[\leadsto x + \frac{y - \color{blue}{\frac{t}{y}}}{\frac{z}{-0.3333333333333333}} \]
    5. div-inv96.5%

      \[\leadsto x + \frac{y - \frac{t}{y}}{\color{blue}{z \cdot \frac{1}{-0.3333333333333333}}} \]
    6. metadata-eval96.5%

      \[\leadsto x + \frac{y - \frac{t}{y}}{z \cdot \color{blue}{-3}} \]
  8. Applied egg-rr96.5%

    \[\leadsto x + \color{blue}{\frac{y - \frac{t}{y}}{z \cdot -3}} \]
  9. Add Preprocessing

Alternative 15: 95.9% accurate, 1.4× speedup?

\[\begin{array}{l} \\ x + \left(y - \frac{t}{y}\right) \cdot \frac{-0.3333333333333333}{z} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (+ x (* (- y (/ t y)) (/ -0.3333333333333333 z))))
double code(double x, double y, double z, double t) {
	return x + ((y - (t / y)) * (-0.3333333333333333 / z));
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = x + ((y - (t / y)) * ((-0.3333333333333333d0) / z))
end function
public static double code(double x, double y, double z, double t) {
	return x + ((y - (t / y)) * (-0.3333333333333333 / z));
}
def code(x, y, z, t):
	return x + ((y - (t / y)) * (-0.3333333333333333 / z))
function code(x, y, z, t)
	return Float64(x + Float64(Float64(y - Float64(t / y)) * Float64(-0.3333333333333333 / z)))
end
function tmp = code(x, y, z, t)
	tmp = x + ((y - (t / y)) * (-0.3333333333333333 / z));
end
code[x_, y_, z_, t_] := N[(x + N[(N[(y - N[(t / y), $MachinePrecision]), $MachinePrecision] * N[(-0.3333333333333333 / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \left(y - \frac{t}{y}\right) \cdot \frac{-0.3333333333333333}{z}
\end{array}
Derivation
  1. Initial program 94.6%

    \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
  2. Step-by-step derivation
    1. sub-neg94.6%

      \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. associate-+l+94.6%

      \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
    3. remove-double-neg94.6%

      \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \color{blue}{\left(-\left(-\frac{t}{\left(z \cdot 3\right) \cdot y}\right)\right)}\right) \]
    4. distribute-frac-neg94.6%

      \[\leadsto x + \left(\left(-\frac{y}{z \cdot 3}\right) + \left(-\color{blue}{\frac{-t}{\left(z \cdot 3\right) \cdot y}}\right)\right) \]
    5. sub-neg94.6%

      \[\leadsto x + \color{blue}{\left(\left(-\frac{y}{z \cdot 3}\right) - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right)} \]
    6. distribute-frac-neg94.6%

      \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    7. neg-mul-194.6%

      \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    8. *-commutative94.6%

      \[\leadsto x + \left(\frac{\color{blue}{y \cdot -1}}{z \cdot 3} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    9. associate-/l*94.6%

      \[\leadsto x + \left(\color{blue}{y \cdot \frac{-1}{z \cdot 3}} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    10. *-commutative94.6%

      \[\leadsto x + \left(\color{blue}{\frac{-1}{z \cdot 3} \cdot y} - \frac{-t}{\left(z \cdot 3\right) \cdot y}\right) \]
    11. neg-mul-194.6%

      \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \frac{\color{blue}{-1 \cdot t}}{\left(z \cdot 3\right) \cdot y}\right) \]
    12. times-frac96.0%

      \[\leadsto x + \left(\frac{-1}{z \cdot 3} \cdot y - \color{blue}{\frac{-1}{z \cdot 3} \cdot \frac{t}{y}}\right) \]
    13. distribute-lft-out--96.4%

      \[\leadsto x + \color{blue}{\frac{-1}{z \cdot 3} \cdot \left(y - \frac{t}{y}\right)} \]
    14. *-commutative96.4%

      \[\leadsto x + \frac{-1}{\color{blue}{3 \cdot z}} \cdot \left(y - \frac{t}{y}\right) \]
    15. associate-/r*96.4%

      \[\leadsto x + \color{blue}{\frac{\frac{-1}{3}}{z}} \cdot \left(y - \frac{t}{y}\right) \]
    16. metadata-eval96.4%

      \[\leadsto x + \frac{\color{blue}{-0.3333333333333333}}{z} \cdot \left(y - \frac{t}{y}\right) \]
  3. Simplified96.4%

    \[\leadsto \color{blue}{x + \frac{-0.3333333333333333}{z} \cdot \left(y - \frac{t}{y}\right)} \]
  4. Add Preprocessing
  5. Final simplification96.4%

    \[\leadsto x + \left(y - \frac{t}{y}\right) \cdot \frac{-0.3333333333333333}{z} \]
  6. Add Preprocessing

Alternative 16: 30.1% accurate, 15.0× speedup?

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

\\
x
\end{array}
Derivation
  1. Initial program 94.6%

    \[\left(x - \frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
  2. Step-by-step derivation
    1. sub-neg94.6%

      \[\leadsto \color{blue}{\left(x + \left(-\frac{y}{z \cdot 3}\right)\right)} + \frac{t}{\left(z \cdot 3\right) \cdot y} \]
    2. associate-+l+94.6%

      \[\leadsto \color{blue}{x + \left(\left(-\frac{y}{z \cdot 3}\right) + \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
    3. distribute-frac-neg94.6%

      \[\leadsto x + \left(\color{blue}{\frac{-y}{z \cdot 3}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
    4. neg-mul-194.6%

      \[\leadsto x + \left(\frac{\color{blue}{-1 \cdot y}}{z \cdot 3} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
    5. *-commutative94.6%

      \[\leadsto x + \left(\frac{-1 \cdot y}{\color{blue}{3 \cdot z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
    6. times-frac94.6%

      \[\leadsto x + \left(\color{blue}{\frac{-1}{3} \cdot \frac{y}{z}} + \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
    7. fma-define94.6%

      \[\leadsto x + \color{blue}{\mathsf{fma}\left(\frac{-1}{3}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right)} \]
    8. metadata-eval94.6%

      \[\leadsto x + \mathsf{fma}\left(\color{blue}{-0.3333333333333333}, \frac{y}{z}, \frac{t}{\left(z \cdot 3\right) \cdot y}\right) \]
    9. associate-*l*94.6%

      \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{\color{blue}{z \cdot \left(3 \cdot y\right)}}\right) \]
    10. *-commutative94.6%

      \[\leadsto x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \color{blue}{\left(y \cdot 3\right)}}\right) \]
  3. Simplified94.6%

    \[\leadsto \color{blue}{x + \mathsf{fma}\left(-0.3333333333333333, \frac{y}{z}, \frac{t}{z \cdot \left(y \cdot 3\right)}\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in x around inf 26.3%

    \[\leadsto \color{blue}{x} \]
  6. Add Preprocessing

Developer Target 1: 96.2% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(x - \frac{y}{z \cdot 3}\right) + \frac{\frac{t}{z \cdot 3}}{y} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (+ (- x (/ y (* z 3.0))) (/ (/ t (* z 3.0)) y)))
double code(double x, double y, double z, double t) {
	return (x - (y / (z * 3.0))) + ((t / (z * 3.0)) / y);
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    code = (x - (y / (z * 3.0d0))) + ((t / (z * 3.0d0)) / y)
end function
public static double code(double x, double y, double z, double t) {
	return (x - (y / (z * 3.0))) + ((t / (z * 3.0)) / y);
}
def code(x, y, z, t):
	return (x - (y / (z * 3.0))) + ((t / (z * 3.0)) / y)
function code(x, y, z, t)
	return Float64(Float64(x - Float64(y / Float64(z * 3.0))) + Float64(Float64(t / Float64(z * 3.0)) / y))
end
function tmp = code(x, y, z, t)
	tmp = (x - (y / (z * 3.0))) + ((t / (z * 3.0)) / y);
end
code[x_, y_, z_, t_] := N[(N[(x - N[(y / N[(z * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(t / N[(z * 3.0), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(x - \frac{y}{z \cdot 3}\right) + \frac{\frac{t}{z \cdot 3}}{y}
\end{array}

Reproduce

?
herbie shell --seed 2024157 
(FPCore (x y z t)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, H"
  :precision binary64

  :alt
  (! :herbie-platform default (+ (- x (/ y (* z 3))) (/ (/ t (* z 3)) y)))

  (+ (- x (/ y (* z 3.0))) (/ t (* (* z 3.0) y))))