Numeric.SpecFunctions:incompleteBetaWorker from math-functions-0.1.5.2, A

Percentage Accurate: 98.0% → 98.0%
Time: 17.2s
Alternatives: 20
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (/ (* x (exp (- (+ (* y (log z)) (* (- t 1.0) (log a))) b))) y))
double code(double x, double y, double z, double t, double a, double b) {
	return (x * exp((((y * log(z)) + ((t - 1.0) * log(a))) - b))) / y;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = (x * exp((((y * log(z)) + ((t - 1.0d0) * log(a))) - b))) / y
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return (x * Math.exp((((y * Math.log(z)) + ((t - 1.0) * Math.log(a))) - b))) / y;
}
def code(x, y, z, t, a, b):
	return (x * math.exp((((y * math.log(z)) + ((t - 1.0) * math.log(a))) - b))) / y
function code(x, y, z, t, a, b)
	return Float64(Float64(x * exp(Float64(Float64(Float64(y * log(z)) + Float64(Float64(t - 1.0) * log(a))) - b))) / y)
end
function tmp = code(x, y, z, t, a, b)
	tmp = (x * exp((((y * log(z)) + ((t - 1.0) * log(a))) - b))) / y;
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(x * N[Exp[N[(N[(N[(y * N[Log[z], $MachinePrecision]), $MachinePrecision] + N[(N[(t - 1.0), $MachinePrecision] * N[Log[a], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}

\\
\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{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 20 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: 98.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (/ (* x (exp (- (+ (* y (log z)) (* (- t 1.0) (log a))) b))) y))
double code(double x, double y, double z, double t, double a, double b) {
	return (x * exp((((y * log(z)) + ((t - 1.0) * log(a))) - b))) / y;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = (x * exp((((y * log(z)) + ((t - 1.0d0) * log(a))) - b))) / y
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return (x * Math.exp((((y * Math.log(z)) + ((t - 1.0) * Math.log(a))) - b))) / y;
}
def code(x, y, z, t, a, b):
	return (x * math.exp((((y * math.log(z)) + ((t - 1.0) * math.log(a))) - b))) / y
function code(x, y, z, t, a, b)
	return Float64(Float64(x * exp(Float64(Float64(Float64(y * log(z)) + Float64(Float64(t - 1.0) * log(a))) - b))) / y)
end
function tmp = code(x, y, z, t, a, b)
	tmp = (x * exp((((y * log(z)) + ((t - 1.0) * log(a))) - b))) / y;
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(x * N[Exp[N[(N[(N[(y * N[Log[z], $MachinePrecision]), $MachinePrecision] + N[(N[(t - 1.0), $MachinePrecision] * N[Log[a], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}

\\
\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}
\end{array}

Alternative 1: 98.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{x \cdot e^{\left(y \cdot \log z + \log a \cdot \left(t + -1\right)\right) - b}}{y} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (/ (* x (exp (- (+ (* y (log z)) (* (log a) (+ t -1.0))) b))) y))
double code(double x, double y, double z, double t, double a, double b) {
	return (x * exp((((y * log(z)) + (log(a) * (t + -1.0))) - b))) / y;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = (x * exp((((y * log(z)) + (log(a) * (t + (-1.0d0)))) - b))) / y
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return (x * Math.exp((((y * Math.log(z)) + (Math.log(a) * (t + -1.0))) - b))) / y;
}
def code(x, y, z, t, a, b):
	return (x * math.exp((((y * math.log(z)) + (math.log(a) * (t + -1.0))) - b))) / y
function code(x, y, z, t, a, b)
	return Float64(Float64(x * exp(Float64(Float64(Float64(y * log(z)) + Float64(log(a) * Float64(t + -1.0))) - b))) / y)
end
function tmp = code(x, y, z, t, a, b)
	tmp = (x * exp((((y * log(z)) + (log(a) * (t + -1.0))) - b))) / y;
end
code[x_, y_, z_, t_, a_, b_] := N[(N[(x * N[Exp[N[(N[(N[(y * N[Log[z], $MachinePrecision]), $MachinePrecision] + N[(N[Log[a], $MachinePrecision] * N[(t + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}

\\
\frac{x \cdot e^{\left(y \cdot \log z + \log a \cdot \left(t + -1\right)\right) - b}}{y}
\end{array}
Derivation
  1. Initial program 98.7%

    \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
  2. Add Preprocessing
  3. Final simplification98.7%

    \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \log a \cdot \left(t + -1\right)\right) - b}}{y} \]
  4. Add Preprocessing

Alternative 2: 92.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -445000 \lor \neg \left(t \leq 2400000\right):\\ \;\;\;\;\frac{x \cdot e^{\log a \cdot \left(t + -1\right) - b}}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{e^{\left(y \cdot \log z - \log a\right) - b}}{y}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= t -445000.0) (not (<= t 2400000.0)))
   (/ (* x (exp (- (* (log a) (+ t -1.0)) b))) y)
   (* x (/ (exp (- (- (* y (log z)) (log a)) b)) y))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((t <= -445000.0) || !(t <= 2400000.0)) {
		tmp = (x * exp(((log(a) * (t + -1.0)) - b))) / y;
	} else {
		tmp = x * (exp((((y * log(z)) - log(a)) - b)) / y);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((t <= (-445000.0d0)) .or. (.not. (t <= 2400000.0d0))) then
        tmp = (x * exp(((log(a) * (t + (-1.0d0))) - b))) / y
    else
        tmp = x * (exp((((y * log(z)) - log(a)) - b)) / y)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((t <= -445000.0) || !(t <= 2400000.0)) {
		tmp = (x * Math.exp(((Math.log(a) * (t + -1.0)) - b))) / y;
	} else {
		tmp = x * (Math.exp((((y * Math.log(z)) - Math.log(a)) - b)) / y);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (t <= -445000.0) or not (t <= 2400000.0):
		tmp = (x * math.exp(((math.log(a) * (t + -1.0)) - b))) / y
	else:
		tmp = x * (math.exp((((y * math.log(z)) - math.log(a)) - b)) / y)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((t <= -445000.0) || !(t <= 2400000.0))
		tmp = Float64(Float64(x * exp(Float64(Float64(log(a) * Float64(t + -1.0)) - b))) / y);
	else
		tmp = Float64(x * Float64(exp(Float64(Float64(Float64(y * log(z)) - log(a)) - b)) / y));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((t <= -445000.0) || ~((t <= 2400000.0)))
		tmp = (x * exp(((log(a) * (t + -1.0)) - b))) / y;
	else
		tmp = x * (exp((((y * log(z)) - log(a)) - b)) / y);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[t, -445000.0], N[Not[LessEqual[t, 2400000.0]], $MachinePrecision]], N[(N[(x * N[Exp[N[(N[(N[Log[a], $MachinePrecision] * N[(t + -1.0), $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision], N[(x * N[(N[Exp[N[(N[(N[(y * N[Log[z], $MachinePrecision]), $MachinePrecision] - N[Log[a], $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -445000 \lor \neg \left(t \leq 2400000\right):\\
\;\;\;\;\frac{x \cdot e^{\log a \cdot \left(t + -1\right) - b}}{y}\\

\mathbf{else}:\\
\;\;\;\;x \cdot \frac{e^{\left(y \cdot \log z - \log a\right) - b}}{y}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -445000 or 2.4e6 < t

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*87.6%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+87.6%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define87.6%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg87.6%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval87.6%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified87.6%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 93.1%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right) - b}}{y}} \]

    if -445000 < t < 2.4e6

    1. Initial program 97.3%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative97.3%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*86.4%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+86.4%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define86.4%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg86.4%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval86.4%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified86.4%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 97.2%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
    6. Step-by-step derivation
      1. associate-/l*97.9%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
      2. +-commutative97.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      3. mul-1-neg97.9%

        \[\leadsto x \cdot \frac{e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      4. unsub-neg97.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    7. Simplified97.9%

      \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z - \log a\right) - b}}{y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification95.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -445000 \lor \neg \left(t \leq 2400000\right):\\ \;\;\;\;\frac{x \cdot e^{\log a \cdot \left(t + -1\right) - b}}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{e^{\left(y \cdot \log z - \log a\right) - b}}{y}\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 87.6% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.1 \cdot 10^{-5} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\ \;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot e^{\log a \cdot \left(t + -1\right) - b}}{y}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= y -3.1e-5) (not (<= y 2.85e-6)))
   (* x (/ (/ (pow z y) a) y))
   (/ (* x (exp (- (* (log a) (+ t -1.0)) b))) y)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((y <= -3.1e-5) || !(y <= 2.85e-6)) {
		tmp = x * ((pow(z, y) / a) / y);
	} else {
		tmp = (x * exp(((log(a) * (t + -1.0)) - b))) / y;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((y <= (-3.1d-5)) .or. (.not. (y <= 2.85d-6))) then
        tmp = x * (((z ** y) / a) / y)
    else
        tmp = (x * exp(((log(a) * (t + (-1.0d0))) - b))) / y
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((y <= -3.1e-5) || !(y <= 2.85e-6)) {
		tmp = x * ((Math.pow(z, y) / a) / y);
	} else {
		tmp = (x * Math.exp(((Math.log(a) * (t + -1.0)) - b))) / y;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (y <= -3.1e-5) or not (y <= 2.85e-6):
		tmp = x * ((math.pow(z, y) / a) / y)
	else:
		tmp = (x * math.exp(((math.log(a) * (t + -1.0)) - b))) / y
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((y <= -3.1e-5) || !(y <= 2.85e-6))
		tmp = Float64(x * Float64(Float64((z ^ y) / a) / y));
	else
		tmp = Float64(Float64(x * exp(Float64(Float64(log(a) * Float64(t + -1.0)) - b))) / y);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((y <= -3.1e-5) || ~((y <= 2.85e-6)))
		tmp = x * (((z ^ y) / a) / y);
	else
		tmp = (x * exp(((log(a) * (t + -1.0)) - b))) / y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[y, -3.1e-5], N[Not[LessEqual[y, 2.85e-6]], $MachinePrecision]], N[(x * N[(N[(N[Power[z, y], $MachinePrecision] / a), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(N[(x * N[Exp[N[(N[(N[Log[a], $MachinePrecision] * N[(t + -1.0), $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.1 \cdot 10^{-5} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\
\;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\

\mathbf{else}:\\
\;\;\;\;\frac{x \cdot e^{\log a \cdot \left(t + -1\right) - b}}{y}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.10000000000000014e-5 or 2.8499999999999998e-6 < y

    1. Initial program 99.8%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative99.8%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*85.3%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+85.3%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define85.3%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg85.3%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval85.3%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified85.3%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 91.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
    6. Step-by-step derivation
      1. associate-/l*91.9%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
      2. +-commutative91.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      3. mul-1-neg91.9%

        \[\leadsto x \cdot \frac{e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      4. unsub-neg91.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    7. Simplified91.9%

      \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z - \log a\right) - b}}{y}} \]
    8. Taylor expanded in b around 0 86.1%

      \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z - \log a}}}{y} \]
    9. Step-by-step derivation
      1. div-exp86.1%

        \[\leadsto x \cdot \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}}}{y} \]
      2. *-commutative86.1%

        \[\leadsto x \cdot \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}}}{y} \]
      3. exp-to-pow86.1%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}}}{y} \]
      4. rem-exp-log86.1%

        \[\leadsto x \cdot \frac{\frac{{z}^{y}}{\color{blue}{a}}}{y} \]
    10. Simplified86.1%

      \[\leadsto x \cdot \frac{\color{blue}{\frac{{z}^{y}}{a}}}{y} \]

    if -3.10000000000000014e-5 < y < 2.8499999999999998e-6

    1. Initial program 97.3%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative97.3%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*89.0%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+89.0%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define89.0%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg89.0%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval89.0%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified89.0%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 97.3%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.1 \cdot 10^{-5} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\ \;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot e^{\log a \cdot \left(t + -1\right) - b}}{y}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 81.9% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -4.5 \cdot 10^{+125}:\\ \;\;\;\;x \cdot \frac{e^{-b}}{y}\\ \mathbf{elif}\;b \leq 2.65 \cdot 10^{+91}:\\ \;\;\;\;x \cdot \left(\frac{{a}^{t}}{a} \cdot \frac{{z}^{y}}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -4.5e+125)
   (* x (/ (exp (- b)) y))
   (if (<= b 2.65e+91)
     (* x (* (/ (pow a t) a) (/ (pow z y) y)))
     (/ x (* a (* y (exp b)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -4.5e+125) {
		tmp = x * (exp(-b) / y);
	} else if (b <= 2.65e+91) {
		tmp = x * ((pow(a, t) / a) * (pow(z, y) / y));
	} else {
		tmp = x / (a * (y * exp(b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-4.5d+125)) then
        tmp = x * (exp(-b) / y)
    else if (b <= 2.65d+91) then
        tmp = x * (((a ** t) / a) * ((z ** y) / y))
    else
        tmp = x / (a * (y * exp(b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -4.5e+125) {
		tmp = x * (Math.exp(-b) / y);
	} else if (b <= 2.65e+91) {
		tmp = x * ((Math.pow(a, t) / a) * (Math.pow(z, y) / y));
	} else {
		tmp = x / (a * (y * Math.exp(b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -4.5e+125:
		tmp = x * (math.exp(-b) / y)
	elif b <= 2.65e+91:
		tmp = x * ((math.pow(a, t) / a) * (math.pow(z, y) / y))
	else:
		tmp = x / (a * (y * math.exp(b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -4.5e+125)
		tmp = Float64(x * Float64(exp(Float64(-b)) / y));
	elseif (b <= 2.65e+91)
		tmp = Float64(x * Float64(Float64((a ^ t) / a) * Float64((z ^ y) / y)));
	else
		tmp = Float64(x / Float64(a * Float64(y * exp(b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -4.5e+125)
		tmp = x * (exp(-b) / y);
	elseif (b <= 2.65e+91)
		tmp = x * (((a ^ t) / a) * ((z ^ y) / y));
	else
		tmp = x / (a * (y * exp(b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -4.5e+125], N[(x * N[(N[Exp[(-b)], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 2.65e+91], N[(x * N[(N[(N[Power[a, t], $MachinePrecision] / a), $MachinePrecision] * N[(N[Power[z, y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y * N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -4.5 \cdot 10^{+125}:\\
\;\;\;\;x \cdot \frac{e^{-b}}{y}\\

\mathbf{elif}\;b \leq 2.65 \cdot 10^{+91}:\\
\;\;\;\;x \cdot \left(\frac{{a}^{t}}{a} \cdot \frac{{z}^{y}}{y}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -4.5e125

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*78.9%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+78.9%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define78.9%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg78.9%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval78.9%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified78.9%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 71.2%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-171.2%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified71.2%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around inf 87.0%

      \[\leadsto \color{blue}{\frac{x \cdot e^{-b}}{y}} \]
    9. Step-by-step derivation
      1. associate-/l*87.0%

        \[\leadsto \color{blue}{x \cdot \frac{e^{-b}}{y}} \]
    10. Simplified87.0%

      \[\leadsto \color{blue}{x \cdot \frac{e^{-b}}{y}} \]

    if -4.5e125 < b < 2.64999999999999998e91

    1. Initial program 98.1%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.6%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.6%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.9%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.6%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.6%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.6%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff75.8%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative75.8%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow76.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg76.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval76.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified76.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in b around 0 84.7%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}{y}} \]
    6. Step-by-step derivation
      1. associate-/l*84.7%

        \[\leadsto x \cdot \color{blue}{\left(e^{\log a \cdot \left(t - 1\right)} \cdot \frac{{z}^{y}}{y}\right)} \]
      2. exp-to-pow85.4%

        \[\leadsto x \cdot \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot \frac{{z}^{y}}{y}\right) \]
      3. sub-neg85.4%

        \[\leadsto x \cdot \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot \frac{{z}^{y}}{y}\right) \]
      4. metadata-eval85.4%

        \[\leadsto x \cdot \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot \frac{{z}^{y}}{y}\right) \]
    7. Simplified85.4%

      \[\leadsto x \cdot \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{y}\right)} \]
    8. Step-by-step derivation
      1. unpow-prod-up85.4%

        \[\leadsto x \cdot \left(\color{blue}{\left({a}^{t} \cdot {a}^{-1}\right)} \cdot \frac{{z}^{y}}{y}\right) \]
      2. unpow-185.4%

        \[\leadsto x \cdot \left(\left({a}^{t} \cdot \color{blue}{\frac{1}{a}}\right) \cdot \frac{{z}^{y}}{y}\right) \]
    9. Applied egg-rr85.4%

      \[\leadsto x \cdot \left(\color{blue}{\left({a}^{t} \cdot \frac{1}{a}\right)} \cdot \frac{{z}^{y}}{y}\right) \]
    10. Step-by-step derivation
      1. associate-*r/85.4%

        \[\leadsto x \cdot \left(\color{blue}{\frac{{a}^{t} \cdot 1}{a}} \cdot \frac{{z}^{y}}{y}\right) \]
      2. *-rgt-identity85.4%

        \[\leadsto x \cdot \left(\frac{\color{blue}{{a}^{t}}}{a} \cdot \frac{{z}^{y}}{y}\right) \]
    11. Simplified85.4%

      \[\leadsto x \cdot \left(\color{blue}{\frac{{a}^{t}}{a}} \cdot \frac{{z}^{y}}{y}\right) \]

    if 2.64999999999999998e91 < b

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*100.0%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+100.0%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum79.4%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.4%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.4%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.4%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff70.6%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative70.6%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow70.6%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg70.6%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval70.6%

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

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 88.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*79.5%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow79.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg79.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval79.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified79.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 94.2%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
  3. Recombined 3 regimes into one program.
  4. Add Preprocessing

Alternative 5: 81.1% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.1 \cdot 10^{-5} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\ \;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= y -3.1e-5) (not (<= y 2.85e-6)))
   (* x (/ (/ (pow z y) a) y))
   (* x (/ (/ (pow a (+ t -1.0)) y) (exp b)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((y <= -3.1e-5) || !(y <= 2.85e-6)) {
		tmp = x * ((pow(z, y) / a) / y);
	} else {
		tmp = x * ((pow(a, (t + -1.0)) / y) / exp(b));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((y <= (-3.1d-5)) .or. (.not. (y <= 2.85d-6))) then
        tmp = x * (((z ** y) / a) / y)
    else
        tmp = x * (((a ** (t + (-1.0d0))) / y) / exp(b))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((y <= -3.1e-5) || !(y <= 2.85e-6)) {
		tmp = x * ((Math.pow(z, y) / a) / y);
	} else {
		tmp = x * ((Math.pow(a, (t + -1.0)) / y) / Math.exp(b));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (y <= -3.1e-5) or not (y <= 2.85e-6):
		tmp = x * ((math.pow(z, y) / a) / y)
	else:
		tmp = x * ((math.pow(a, (t + -1.0)) / y) / math.exp(b))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((y <= -3.1e-5) || !(y <= 2.85e-6))
		tmp = Float64(x * Float64(Float64((z ^ y) / a) / y));
	else
		tmp = Float64(x * Float64(Float64((a ^ Float64(t + -1.0)) / y) / exp(b)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((y <= -3.1e-5) || ~((y <= 2.85e-6)))
		tmp = x * (((z ^ y) / a) / y);
	else
		tmp = x * (((a ^ (t + -1.0)) / y) / exp(b));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[y, -3.1e-5], N[Not[LessEqual[y, 2.85e-6]], $MachinePrecision]], N[(x * N[(N[(N[Power[z, y], $MachinePrecision] / a), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(x * N[(N[(N[Power[a, N[(t + -1.0), $MachinePrecision]], $MachinePrecision] / y), $MachinePrecision] / N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.1 \cdot 10^{-5} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\
\;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\

\mathbf{else}:\\
\;\;\;\;x \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.10000000000000014e-5 or 2.8499999999999998e-6 < y

    1. Initial program 99.8%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative99.8%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*85.3%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+85.3%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define85.3%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg85.3%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval85.3%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified85.3%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 91.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
    6. Step-by-step derivation
      1. associate-/l*91.9%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
      2. +-commutative91.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      3. mul-1-neg91.9%

        \[\leadsto x \cdot \frac{e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      4. unsub-neg91.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    7. Simplified91.9%

      \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z - \log a\right) - b}}{y}} \]
    8. Taylor expanded in b around 0 86.1%

      \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z - \log a}}}{y} \]
    9. Step-by-step derivation
      1. div-exp86.1%

        \[\leadsto x \cdot \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}}}{y} \]
      2. *-commutative86.1%

        \[\leadsto x \cdot \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}}}{y} \]
      3. exp-to-pow86.1%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}}}{y} \]
      4. rem-exp-log86.1%

        \[\leadsto x \cdot \frac{\frac{{z}^{y}}{\color{blue}{a}}}{y} \]
    10. Simplified86.1%

      \[\leadsto x \cdot \frac{\color{blue}{\frac{{z}^{y}}{a}}}{y} \]

    if -3.10000000000000014e-5 < y < 2.8499999999999998e-6

    1. Initial program 97.3%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.0%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.0%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum98.0%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*98.0%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative98.0%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow98.0%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff87.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative87.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow88.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg88.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval88.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified88.9%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 87.9%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*84.5%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow85.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg85.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval85.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified85.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification85.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.1 \cdot 10^{-5} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\ \;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 75.9% accurate, 2.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -400000 \lor \neg \left(t \leq 1.2\right):\\ \;\;\;\;x \cdot \frac{{a}^{\left(t + -1\right)}}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= t -400000.0) (not (<= t 1.2)))
   (* x (/ (pow a (+ t -1.0)) y))
   (* x (/ (/ (pow z y) a) y))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((t <= -400000.0) || !(t <= 1.2)) {
		tmp = x * (pow(a, (t + -1.0)) / y);
	} else {
		tmp = x * ((pow(z, y) / a) / y);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((t <= (-400000.0d0)) .or. (.not. (t <= 1.2d0))) then
        tmp = x * ((a ** (t + (-1.0d0))) / y)
    else
        tmp = x * (((z ** y) / a) / y)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((t <= -400000.0) || !(t <= 1.2)) {
		tmp = x * (Math.pow(a, (t + -1.0)) / y);
	} else {
		tmp = x * ((Math.pow(z, y) / a) / y);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (t <= -400000.0) or not (t <= 1.2):
		tmp = x * (math.pow(a, (t + -1.0)) / y)
	else:
		tmp = x * ((math.pow(z, y) / a) / y)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((t <= -400000.0) || !(t <= 1.2))
		tmp = Float64(x * Float64((a ^ Float64(t + -1.0)) / y));
	else
		tmp = Float64(x * Float64(Float64((z ^ y) / a) / y));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((t <= -400000.0) || ~((t <= 1.2)))
		tmp = x * ((a ^ (t + -1.0)) / y);
	else
		tmp = x * (((z ^ y) / a) / y);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[t, -400000.0], N[Not[LessEqual[t, 1.2]], $MachinePrecision]], N[(x * N[(N[Power[a, N[(t + -1.0), $MachinePrecision]], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(x * N[(N[(N[Power[z, y], $MachinePrecision] / a), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -400000 \lor \neg \left(t \leq 1.2\right):\\
\;\;\;\;x \cdot \frac{{a}^{\left(t + -1\right)}}{y}\\

\mathbf{else}:\\
\;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -4e5 or 1.19999999999999996 < t

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*100.0%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+100.0%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum79.8%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.8%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.8%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.8%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff65.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative65.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow65.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg65.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval65.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified65.9%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 77.6%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*77.6%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow77.6%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg77.6%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval77.6%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified77.6%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in b around 0 86.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}} \]
    9. Step-by-step derivation
      1. exp-to-pow86.3%

        \[\leadsto x \cdot \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y} \]
      2. sub-neg86.3%

        \[\leadsto x \cdot \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y} \]
      3. metadata-eval86.3%

        \[\leadsto x \cdot \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y} \]
      4. +-commutative86.3%

        \[\leadsto x \cdot \frac{{a}^{\color{blue}{\left(-1 + t\right)}}}{y} \]
    10. Simplified86.3%

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

    if -4e5 < t < 1.19999999999999996

    1. Initial program 97.3%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative97.3%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*86.4%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+86.4%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define86.4%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg86.4%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval86.4%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified86.4%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 97.2%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
    6. Step-by-step derivation
      1. associate-/l*97.9%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
      2. +-commutative97.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      3. mul-1-neg97.9%

        \[\leadsto x \cdot \frac{e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      4. unsub-neg97.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    7. Simplified97.9%

      \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z - \log a\right) - b}}{y}} \]
    8. Taylor expanded in b around 0 78.9%

      \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z - \log a}}}{y} \]
    9. Step-by-step derivation
      1. div-exp78.9%

        \[\leadsto x \cdot \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}}}{y} \]
      2. *-commutative78.9%

        \[\leadsto x \cdot \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}}}{y} \]
      3. exp-to-pow78.9%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}}}{y} \]
      4. rem-exp-log79.9%

        \[\leadsto x \cdot \frac{\frac{{z}^{y}}{\color{blue}{a}}}{y} \]
    10. Simplified79.9%

      \[\leadsto x \cdot \frac{\color{blue}{\frac{{z}^{y}}{a}}}{y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification83.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -400000 \lor \neg \left(t \leq 1.2\right):\\ \;\;\;\;x \cdot \frac{{a}^{\left(t + -1\right)}}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 75.3% accurate, 2.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -3.8 \cdot 10^{-10} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\ \;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= y -3.8e-10) (not (<= y 2.85e-6)))
   (* x (/ (/ (pow z y) a) y))
   (/ x (* a (* y (exp b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((y <= -3.8e-10) || !(y <= 2.85e-6)) {
		tmp = x * ((pow(z, y) / a) / y);
	} else {
		tmp = x / (a * (y * exp(b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((y <= (-3.8d-10)) .or. (.not. (y <= 2.85d-6))) then
        tmp = x * (((z ** y) / a) / y)
    else
        tmp = x / (a * (y * exp(b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((y <= -3.8e-10) || !(y <= 2.85e-6)) {
		tmp = x * ((Math.pow(z, y) / a) / y);
	} else {
		tmp = x / (a * (y * Math.exp(b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (y <= -3.8e-10) or not (y <= 2.85e-6):
		tmp = x * ((math.pow(z, y) / a) / y)
	else:
		tmp = x / (a * (y * math.exp(b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((y <= -3.8e-10) || !(y <= 2.85e-6))
		tmp = Float64(x * Float64(Float64((z ^ y) / a) / y));
	else
		tmp = Float64(x / Float64(a * Float64(y * exp(b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((y <= -3.8e-10) || ~((y <= 2.85e-6)))
		tmp = x * (((z ^ y) / a) / y);
	else
		tmp = x / (a * (y * exp(b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[y, -3.8e-10], N[Not[LessEqual[y, 2.85e-6]], $MachinePrecision]], N[(x * N[(N[(N[Power[z, y], $MachinePrecision] / a), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y * N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.8 \cdot 10^{-10} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\
\;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.7999999999999998e-10 or 2.8499999999999998e-6 < y

    1. Initial program 99.8%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative99.8%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*85.4%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+85.4%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define85.4%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg85.4%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval85.4%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified85.4%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in t around 0 91.3%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
    6. Step-by-step derivation
      1. associate-/l*91.3%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}{y}} \]
      2. +-commutative91.3%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      3. mul-1-neg91.3%

        \[\leadsto x \cdot \frac{e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      4. unsub-neg91.3%

        \[\leadsto x \cdot \frac{e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    7. Simplified91.3%

      \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z - \log a\right) - b}}{y}} \]
    8. Taylor expanded in b around 0 85.5%

      \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z - \log a}}}{y} \]
    9. Step-by-step derivation
      1. div-exp85.5%

        \[\leadsto x \cdot \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}}}{y} \]
      2. *-commutative85.5%

        \[\leadsto x \cdot \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}}}{y} \]
      3. exp-to-pow85.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}}}{y} \]
      4. rem-exp-log85.5%

        \[\leadsto x \cdot \frac{\frac{{z}^{y}}{\color{blue}{a}}}{y} \]
    10. Simplified85.5%

      \[\leadsto x \cdot \frac{\color{blue}{\frac{{z}^{y}}{a}}}{y} \]

    if -3.7999999999999998e-10 < y < 2.8499999999999998e-6

    1. Initial program 97.3%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.0%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.0%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum98.0%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*98.0%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative98.0%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow98.0%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff87.7%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative87.7%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow88.8%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg88.8%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval88.8%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified88.8%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 87.7%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*84.3%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow85.4%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg85.4%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval85.4%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified85.4%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 71.0%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.8 \cdot 10^{-10} \lor \neg \left(y \leq 2.85 \cdot 10^{-6}\right):\\ \;\;\;\;x \cdot \frac{\frac{{z}^{y}}{a}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 58.3% accurate, 2.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -7.2 \cdot 10^{-20} \lor \neg \left(b \leq 1250000\right):\\ \;\;\;\;x \cdot \frac{e^{-b}}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{1}{y \cdot a}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= b -7.2e-20) (not (<= b 1250000.0)))
   (* x (/ (exp (- b)) y))
   (* x (/ 1.0 (* y a)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -7.2e-20) || !(b <= 1250000.0)) {
		tmp = x * (exp(-b) / y);
	} else {
		tmp = x * (1.0 / (y * a));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((b <= (-7.2d-20)) .or. (.not. (b <= 1250000.0d0))) then
        tmp = x * (exp(-b) / y)
    else
        tmp = x * (1.0d0 / (y * a))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -7.2e-20) || !(b <= 1250000.0)) {
		tmp = x * (Math.exp(-b) / y);
	} else {
		tmp = x * (1.0 / (y * a));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (b <= -7.2e-20) or not (b <= 1250000.0):
		tmp = x * (math.exp(-b) / y)
	else:
		tmp = x * (1.0 / (y * a))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((b <= -7.2e-20) || !(b <= 1250000.0))
		tmp = Float64(x * Float64(exp(Float64(-b)) / y));
	else
		tmp = Float64(x * Float64(1.0 / Float64(y * a)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((b <= -7.2e-20) || ~((b <= 1250000.0)))
		tmp = x * (exp(-b) / y);
	else
		tmp = x * (1.0 / (y * a));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[b, -7.2e-20], N[Not[LessEqual[b, 1250000.0]], $MachinePrecision]], N[(x * N[(N[Exp[(-b)], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(x * N[(1.0 / N[(y * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -7.2 \cdot 10^{-20} \lor \neg \left(b \leq 1250000\right):\\
\;\;\;\;x \cdot \frac{e^{-b}}{y}\\

\mathbf{else}:\\
\;\;\;\;x \cdot \frac{1}{y \cdot a}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -7.19999999999999948e-20 or 1.25e6 < b

    1. Initial program 99.8%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative99.8%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*87.7%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+87.7%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define87.7%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg87.7%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval87.7%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified87.7%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 68.7%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-168.7%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified68.7%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around inf 77.7%

      \[\leadsto \color{blue}{\frac{x \cdot e^{-b}}{y}} \]
    9. Step-by-step derivation
      1. associate-/l*77.7%

        \[\leadsto \color{blue}{x \cdot \frac{e^{-b}}{y}} \]
    10. Simplified77.7%

      \[\leadsto \color{blue}{x \cdot \frac{e^{-b}}{y}} \]

    if -7.19999999999999948e-20 < b < 1.25e6

    1. Initial program 97.6%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.2%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.2%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum87.8%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*81.8%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative81.8%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow81.8%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff81.8%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative81.8%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow82.7%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg82.7%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval82.7%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified82.7%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 73.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*73.3%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow74.1%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg74.1%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval74.1%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified74.1%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 35.9%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 35.9%

      \[\leadsto \color{blue}{\frac{x}{a \cdot y}} \]
    10. Step-by-step derivation
      1. div-inv36.6%

        \[\leadsto \color{blue}{x \cdot \frac{1}{a \cdot y}} \]
    11. Applied egg-rr36.6%

      \[\leadsto \color{blue}{x \cdot \frac{1}{a \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification56.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -7.2 \cdot 10^{-20} \lor \neg \left(b \leq 1250000\right):\\ \;\;\;\;x \cdot \frac{e^{-b}}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{1}{y \cdot a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 59.1% accurate, 2.9× speedup?

\[\begin{array}{l} \\ \frac{x}{a \cdot \left(y \cdot e^{b}\right)} \end{array} \]
(FPCore (x y z t a b) :precision binary64 (/ x (* a (* y (exp b)))))
double code(double x, double y, double z, double t, double a, double b) {
	return x / (a * (y * exp(b)));
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = x / (a * (y * exp(b)))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	return x / (a * (y * Math.exp(b)));
}
def code(x, y, z, t, a, b):
	return x / (a * (y * math.exp(b)))
function code(x, y, z, t, a, b)
	return Float64(x / Float64(a * Float64(y * exp(b))))
end
function tmp = code(x, y, z, t, a, b)
	tmp = x / (a * (y * exp(b)));
end
code[x_, y_, z_, t_, a_, b_] := N[(x / N[(a * N[(y * N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{x}{a \cdot \left(y \cdot e^{b}\right)}
\end{array}
Derivation
  1. Initial program 98.7%

    \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
  2. Step-by-step derivation
    1. associate-/l*99.0%

      \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
    2. associate--l+99.0%

      \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
    3. exp-sum83.4%

      \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
    4. associate-/l*80.2%

      \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
    5. *-commutative80.2%

      \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
    6. exp-to-pow80.2%

      \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
    7. exp-diff72.8%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
    8. *-commutative72.8%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
    9. exp-to-pow73.4%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
    10. sub-neg73.4%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
    11. metadata-eval73.4%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
  3. Simplified73.4%

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

    \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
  6. Step-by-step derivation
    1. associate-/r*67.1%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
    2. exp-to-pow67.6%

      \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
    3. sub-neg67.6%

      \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
    4. metadata-eval67.6%

      \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
  7. Simplified67.6%

    \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
  8. Taylor expanded in t around 0 55.8%

    \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
  9. Add Preprocessing

Alternative 10: 49.2% accurate, 10.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -2.7 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} + b \cdot \left(b \cdot \left(-0.16666666666666666 \cdot \frac{x \cdot b}{y} + \frac{x}{y} \cdot 0.5\right) - \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + b \cdot \left(0.16666666666666666 \cdot \left(y \cdot b\right) + y \cdot 0.5\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -2.7e+118)
   (+
    (/ x y)
    (*
     b
     (-
      (* b (+ (* -0.16666666666666666 (/ (* x b) y)) (* (/ x y) 0.5)))
      (/ x y))))
   (/
    x
    (*
     a
     (+ y (* b (+ y (* b (+ (* 0.16666666666666666 (* y b)) (* y 0.5))))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -2.7e+118) {
		tmp = (x / y) + (b * ((b * ((-0.16666666666666666 * ((x * b) / y)) + ((x / y) * 0.5))) - (x / y)));
	} else {
		tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666 * (y * b)) + (y * 0.5)))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-2.7d+118)) then
        tmp = (x / y) + (b * ((b * (((-0.16666666666666666d0) * ((x * b) / y)) + ((x / y) * 0.5d0))) - (x / y)))
    else
        tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666d0 * (y * b)) + (y * 0.5d0)))))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -2.7e+118) {
		tmp = (x / y) + (b * ((b * ((-0.16666666666666666 * ((x * b) / y)) + ((x / y) * 0.5))) - (x / y)));
	} else {
		tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666 * (y * b)) + (y * 0.5)))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -2.7e+118:
		tmp = (x / y) + (b * ((b * ((-0.16666666666666666 * ((x * b) / y)) + ((x / y) * 0.5))) - (x / y)))
	else:
		tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666 * (y * b)) + (y * 0.5)))))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -2.7e+118)
		tmp = Float64(Float64(x / y) + Float64(b * Float64(Float64(b * Float64(Float64(-0.16666666666666666 * Float64(Float64(x * b) / y)) + Float64(Float64(x / y) * 0.5))) - Float64(x / y))));
	else
		tmp = Float64(x / Float64(a * Float64(y + Float64(b * Float64(y + Float64(b * Float64(Float64(0.16666666666666666 * Float64(y * b)) + Float64(y * 0.5))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -2.7e+118)
		tmp = (x / y) + (b * ((b * ((-0.16666666666666666 * ((x * b) / y)) + ((x / y) * 0.5))) - (x / y)));
	else
		tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666 * (y * b)) + (y * 0.5)))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -2.7e+118], N[(N[(x / y), $MachinePrecision] + N[(b * N[(N[(b * N[(N[(-0.16666666666666666 * N[(N[(x * b), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision] + N[(N[(x / y), $MachinePrecision] * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y + N[(b * N[(y + N[(b * N[(N[(0.16666666666666666 * N[(y * b), $MachinePrecision]), $MachinePrecision] + N[(y * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -2.7 \cdot 10^{+118}:\\
\;\;\;\;\frac{x}{y} + b \cdot \left(b \cdot \left(-0.16666666666666666 \cdot \frac{x \cdot b}{y} + \frac{x}{y} \cdot 0.5\right) - \frac{x}{y}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + b \cdot \left(0.16666666666666666 \cdot \left(y \cdot b\right) + y \cdot 0.5\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -2.7e118

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*79.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+79.5%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define79.5%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 72.0%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-172.0%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified72.0%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around 0 68.0%

      \[\leadsto \color{blue}{b \cdot \left(-1 \cdot \frac{x}{y} + b \cdot \left(-0.16666666666666666 \cdot \frac{b \cdot x}{y} + 0.5 \cdot \frac{x}{y}\right)\right) + \frac{x}{y}} \]

    if -2.7e118 < b

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.8%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.8%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.1%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified75.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 71.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*69.0%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow69.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified69.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 50.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 42.6%

      \[\leadsto \frac{x}{a \cdot \color{blue}{\left(y + b \cdot \left(y + b \cdot \left(0.16666666666666666 \cdot \left(b \cdot y\right) + 0.5 \cdot y\right)\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification46.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.7 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} + b \cdot \left(b \cdot \left(-0.16666666666666666 \cdot \frac{x \cdot b}{y} + \frac{x}{y} \cdot 0.5\right) - \frac{x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + b \cdot \left(0.16666666666666666 \cdot \left(y \cdot b\right) + y \cdot 0.5\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 48.3% accurate, 12.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(\frac{1}{y} + b \cdot \left(0.5 \cdot \frac{b}{y} + \frac{-1}{y}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + b \cdot \left(0.16666666666666666 \cdot \left(y \cdot b\right) + y \cdot 0.5\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -1.95e+118)
   (* x (+ (/ 1.0 y) (* b (+ (* 0.5 (/ b y)) (/ -1.0 y)))))
   (/
    x
    (*
     a
     (+ y (* b (+ y (* b (+ (* 0.16666666666666666 (* y b)) (* y 0.5))))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.95e+118) {
		tmp = x * ((1.0 / y) + (b * ((0.5 * (b / y)) + (-1.0 / y))));
	} else {
		tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666 * (y * b)) + (y * 0.5)))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-1.95d+118)) then
        tmp = x * ((1.0d0 / y) + (b * ((0.5d0 * (b / y)) + ((-1.0d0) / y))))
    else
        tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666d0 * (y * b)) + (y * 0.5d0)))))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.95e+118) {
		tmp = x * ((1.0 / y) + (b * ((0.5 * (b / y)) + (-1.0 / y))));
	} else {
		tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666 * (y * b)) + (y * 0.5)))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -1.95e+118:
		tmp = x * ((1.0 / y) + (b * ((0.5 * (b / y)) + (-1.0 / y))))
	else:
		tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666 * (y * b)) + (y * 0.5)))))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -1.95e+118)
		tmp = Float64(x * Float64(Float64(1.0 / y) + Float64(b * Float64(Float64(0.5 * Float64(b / y)) + Float64(-1.0 / y)))));
	else
		tmp = Float64(x / Float64(a * Float64(y + Float64(b * Float64(y + Float64(b * Float64(Float64(0.16666666666666666 * Float64(y * b)) + Float64(y * 0.5))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -1.95e+118)
		tmp = x * ((1.0 / y) + (b * ((0.5 * (b / y)) + (-1.0 / y))));
	else
		tmp = x / (a * (y + (b * (y + (b * ((0.16666666666666666 * (y * b)) + (y * 0.5)))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -1.95e+118], N[(x * N[(N[(1.0 / y), $MachinePrecision] + N[(b * N[(N[(0.5 * N[(b / y), $MachinePrecision]), $MachinePrecision] + N[(-1.0 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y + N[(b * N[(y + N[(b * N[(N[(0.16666666666666666 * N[(y * b), $MachinePrecision]), $MachinePrecision] + N[(y * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\
\;\;\;\;x \cdot \left(\frac{1}{y} + b \cdot \left(0.5 \cdot \frac{b}{y} + \frac{-1}{y}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + b \cdot \left(0.16666666666666666 \cdot \left(y \cdot b\right) + y \cdot 0.5\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.95e118

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*79.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+79.5%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define79.5%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 72.0%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-172.0%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified72.0%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around 0 55.7%

      \[\leadsto \color{blue}{b \cdot \left(-1 \cdot \frac{x}{y} + 0.5 \cdot \frac{b \cdot x}{y}\right) + \frac{x}{y}} \]
    9. Taylor expanded in x around 0 65.2%

      \[\leadsto \color{blue}{x \cdot \left(b \cdot \left(0.5 \cdot \frac{b}{y} - \frac{1}{y}\right) + \frac{1}{y}\right)} \]

    if -1.95e118 < b

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.8%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.8%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.1%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified75.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 71.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*69.0%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow69.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified69.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 50.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 42.6%

      \[\leadsto \frac{x}{a \cdot \color{blue}{\left(y + b \cdot \left(y + b \cdot \left(0.16666666666666666 \cdot \left(b \cdot y\right) + 0.5 \cdot y\right)\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification46.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(\frac{1}{y} + b \cdot \left(0.5 \cdot \frac{b}{y} + \frac{-1}{y}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + b \cdot \left(0.16666666666666666 \cdot \left(y \cdot b\right) + y \cdot 0.5\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 47.0% accurate, 14.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -6.8 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(\frac{1}{y} + b \cdot \left(0.5 \cdot \frac{b}{y} + \frac{-1}{y}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + y \cdot \left(b \cdot 0.5\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -6.8e+118)
   (* x (+ (/ 1.0 y) (* b (+ (* 0.5 (/ b y)) (/ -1.0 y)))))
   (/ x (* a (+ y (* b (+ y (* y (* b 0.5)))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -6.8e+118) {
		tmp = x * ((1.0 / y) + (b * ((0.5 * (b / y)) + (-1.0 / y))));
	} else {
		tmp = x / (a * (y + (b * (y + (y * (b * 0.5))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-6.8d+118)) then
        tmp = x * ((1.0d0 / y) + (b * ((0.5d0 * (b / y)) + ((-1.0d0) / y))))
    else
        tmp = x / (a * (y + (b * (y + (y * (b * 0.5d0))))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -6.8e+118) {
		tmp = x * ((1.0 / y) + (b * ((0.5 * (b / y)) + (-1.0 / y))));
	} else {
		tmp = x / (a * (y + (b * (y + (y * (b * 0.5))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -6.8e+118:
		tmp = x * ((1.0 / y) + (b * ((0.5 * (b / y)) + (-1.0 / y))))
	else:
		tmp = x / (a * (y + (b * (y + (y * (b * 0.5))))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -6.8e+118)
		tmp = Float64(x * Float64(Float64(1.0 / y) + Float64(b * Float64(Float64(0.5 * Float64(b / y)) + Float64(-1.0 / y)))));
	else
		tmp = Float64(x / Float64(a * Float64(y + Float64(b * Float64(y + Float64(y * Float64(b * 0.5)))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -6.8e+118)
		tmp = x * ((1.0 / y) + (b * ((0.5 * (b / y)) + (-1.0 / y))));
	else
		tmp = x / (a * (y + (b * (y + (y * (b * 0.5))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -6.8e+118], N[(x * N[(N[(1.0 / y), $MachinePrecision] + N[(b * N[(N[(0.5 * N[(b / y), $MachinePrecision]), $MachinePrecision] + N[(-1.0 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y + N[(b * N[(y + N[(y * N[(b * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -6.8 \cdot 10^{+118}:\\
\;\;\;\;x \cdot \left(\frac{1}{y} + b \cdot \left(0.5 \cdot \frac{b}{y} + \frac{-1}{y}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + y \cdot \left(b \cdot 0.5\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -6.79999999999999973e118

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*79.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+79.5%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define79.5%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 72.0%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-172.0%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified72.0%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around 0 55.7%

      \[\leadsto \color{blue}{b \cdot \left(-1 \cdot \frac{x}{y} + 0.5 \cdot \frac{b \cdot x}{y}\right) + \frac{x}{y}} \]
    9. Taylor expanded in x around 0 65.2%

      \[\leadsto \color{blue}{x \cdot \left(b \cdot \left(0.5 \cdot \frac{b}{y} - \frac{1}{y}\right) + \frac{1}{y}\right)} \]

    if -6.79999999999999973e118 < b

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.8%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.8%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.1%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified75.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 71.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*69.0%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow69.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified69.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 50.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 39.0%

      \[\leadsto \frac{x}{a \cdot \color{blue}{\left(y + b \cdot \left(y + 0.5 \cdot \left(b \cdot y\right)\right)\right)}} \]
    10. Step-by-step derivation
      1. associate-*r*39.0%

        \[\leadsto \frac{x}{a \cdot \left(y + b \cdot \left(y + \color{blue}{\left(0.5 \cdot b\right) \cdot y}\right)\right)} \]
    11. Simplified39.0%

      \[\leadsto \frac{x}{a \cdot \color{blue}{\left(y + b \cdot \left(y + \left(0.5 \cdot b\right) \cdot y\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification43.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -6.8 \cdot 10^{+118}:\\ \;\;\;\;x \cdot \left(\frac{1}{y} + b \cdot \left(0.5 \cdot \frac{b}{y} + \frac{-1}{y}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + y \cdot \left(b \cdot 0.5\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 45.7% accurate, 15.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} + b \cdot \left(x \cdot \left(b \cdot \frac{0.5}{y}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + y \cdot \left(b \cdot 0.5\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -1.95e+118)
   (+ (/ x y) (* b (* x (* b (/ 0.5 y)))))
   (/ x (* a (+ y (* b (+ y (* y (* b 0.5)))))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.95e+118) {
		tmp = (x / y) + (b * (x * (b * (0.5 / y))));
	} else {
		tmp = x / (a * (y + (b * (y + (y * (b * 0.5))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-1.95d+118)) then
        tmp = (x / y) + (b * (x * (b * (0.5d0 / y))))
    else
        tmp = x / (a * (y + (b * (y + (y * (b * 0.5d0))))))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.95e+118) {
		tmp = (x / y) + (b * (x * (b * (0.5 / y))));
	} else {
		tmp = x / (a * (y + (b * (y + (y * (b * 0.5))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -1.95e+118:
		tmp = (x / y) + (b * (x * (b * (0.5 / y))))
	else:
		tmp = x / (a * (y + (b * (y + (y * (b * 0.5))))))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -1.95e+118)
		tmp = Float64(Float64(x / y) + Float64(b * Float64(x * Float64(b * Float64(0.5 / y)))));
	else
		tmp = Float64(x / Float64(a * Float64(y + Float64(b * Float64(y + Float64(y * Float64(b * 0.5)))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -1.95e+118)
		tmp = (x / y) + (b * (x * (b * (0.5 / y))));
	else
		tmp = x / (a * (y + (b * (y + (y * (b * 0.5))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -1.95e+118], N[(N[(x / y), $MachinePrecision] + N[(b * N[(x * N[(b * N[(0.5 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y + N[(b * N[(y + N[(y * N[(b * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\
\;\;\;\;\frac{x}{y} + b \cdot \left(x \cdot \left(b \cdot \frac{0.5}{y}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + y \cdot \left(b \cdot 0.5\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.95e118

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*79.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+79.5%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define79.5%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 72.0%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-172.0%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified72.0%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around 0 55.7%

      \[\leadsto \color{blue}{b \cdot \left(-1 \cdot \frac{x}{y} + 0.5 \cdot \frac{b \cdot x}{y}\right) + \frac{x}{y}} \]
    9. Taylor expanded in b around inf 55.7%

      \[\leadsto b \cdot \color{blue}{\left(0.5 \cdot \frac{b \cdot x}{y}\right)} + \frac{x}{y} \]
    10. Step-by-step derivation
      1. associate-*r/55.5%

        \[\leadsto b \cdot \left(0.5 \cdot \color{blue}{\left(b \cdot \frac{x}{y}\right)}\right) + \frac{x}{y} \]
      2. *-commutative55.5%

        \[\leadsto b \cdot \color{blue}{\left(\left(b \cdot \frac{x}{y}\right) \cdot 0.5\right)} + \frac{x}{y} \]
      3. associate-*l*55.5%

        \[\leadsto b \cdot \color{blue}{\left(b \cdot \left(\frac{x}{y} \cdot 0.5\right)\right)} + \frac{x}{y} \]
      4. associate-*l/55.5%

        \[\leadsto b \cdot \left(b \cdot \color{blue}{\frac{x \cdot 0.5}{y}}\right) + \frac{x}{y} \]
    11. Simplified55.5%

      \[\leadsto b \cdot \color{blue}{\left(b \cdot \frac{x \cdot 0.5}{y}\right)} + \frac{x}{y} \]
    12. Taylor expanded in b around 0 55.7%

      \[\leadsto b \cdot \color{blue}{\left(0.5 \cdot \frac{b \cdot x}{y}\right)} + \frac{x}{y} \]
    13. Step-by-step derivation
      1. associate-/l*55.5%

        \[\leadsto b \cdot \left(0.5 \cdot \color{blue}{\left(b \cdot \frac{x}{y}\right)}\right) + \frac{x}{y} \]
      2. *-commutative55.5%

        \[\leadsto b \cdot \left(0.5 \cdot \color{blue}{\left(\frac{x}{y} \cdot b\right)}\right) + \frac{x}{y} \]
      3. associate-*l*55.5%

        \[\leadsto b \cdot \color{blue}{\left(\left(0.5 \cdot \frac{x}{y}\right) \cdot b\right)} + \frac{x}{y} \]
      4. associate-*r/55.5%

        \[\leadsto b \cdot \left(\color{blue}{\frac{0.5 \cdot x}{y}} \cdot b\right) + \frac{x}{y} \]
      5. *-commutative55.5%

        \[\leadsto b \cdot \left(\frac{\color{blue}{x \cdot 0.5}}{y} \cdot b\right) + \frac{x}{y} \]
      6. associate-/l*55.5%

        \[\leadsto b \cdot \left(\color{blue}{\left(x \cdot \frac{0.5}{y}\right)} \cdot b\right) + \frac{x}{y} \]
      7. associate-*l*60.4%

        \[\leadsto b \cdot \color{blue}{\left(x \cdot \left(\frac{0.5}{y} \cdot b\right)\right)} + \frac{x}{y} \]
    14. Simplified60.4%

      \[\leadsto b \cdot \color{blue}{\left(x \cdot \left(\frac{0.5}{y} \cdot b\right)\right)} + \frac{x}{y} \]

    if -1.95e118 < b

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.8%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.8%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.1%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified75.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 71.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*69.0%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow69.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified69.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 50.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 39.0%

      \[\leadsto \frac{x}{a \cdot \color{blue}{\left(y + b \cdot \left(y + 0.5 \cdot \left(b \cdot y\right)\right)\right)}} \]
    10. Step-by-step derivation
      1. associate-*r*39.0%

        \[\leadsto \frac{x}{a \cdot \left(y + b \cdot \left(y + \color{blue}{\left(0.5 \cdot b\right) \cdot y}\right)\right)} \]
    11. Simplified39.0%

      \[\leadsto \frac{x}{a \cdot \color{blue}{\left(y + b \cdot \left(y + \left(0.5 \cdot b\right) \cdot y\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification42.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} + b \cdot \left(x \cdot \left(b \cdot \frac{0.5}{y}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y + b \cdot \left(y + y \cdot \left(b \cdot 0.5\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 40.2% accurate, 17.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} + b \cdot \left(x \cdot \left(b \cdot \frac{0.5}{y}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -1.95e+118)
   (+ (/ x y) (* b (* x (* b (/ 0.5 y)))))
   (/ x (* a (* y (+ 1.0 b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.95e+118) {
		tmp = (x / y) + (b * (x * (b * (0.5 / y))));
	} else {
		tmp = x / (a * (y * (1.0 + b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-1.95d+118)) then
        tmp = (x / y) + (b * (x * (b * (0.5d0 / y))))
    else
        tmp = x / (a * (y * (1.0d0 + b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.95e+118) {
		tmp = (x / y) + (b * (x * (b * (0.5 / y))));
	} else {
		tmp = x / (a * (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -1.95e+118:
		tmp = (x / y) + (b * (x * (b * (0.5 / y))))
	else:
		tmp = x / (a * (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -1.95e+118)
		tmp = Float64(Float64(x / y) + Float64(b * Float64(x * Float64(b * Float64(0.5 / y)))));
	else
		tmp = Float64(x / Float64(a * Float64(y * Float64(1.0 + b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -1.95e+118)
		tmp = (x / y) + (b * (x * (b * (0.5 / y))));
	else
		tmp = x / (a * (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -1.95e+118], N[(N[(x / y), $MachinePrecision] + N[(b * N[(x * N[(b * N[(0.5 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\
\;\;\;\;\frac{x}{y} + b \cdot \left(x \cdot \left(b \cdot \frac{0.5}{y}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.95e118

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*79.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+79.5%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define79.5%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 72.0%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-172.0%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified72.0%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around 0 55.7%

      \[\leadsto \color{blue}{b \cdot \left(-1 \cdot \frac{x}{y} + 0.5 \cdot \frac{b \cdot x}{y}\right) + \frac{x}{y}} \]
    9. Taylor expanded in b around inf 55.7%

      \[\leadsto b \cdot \color{blue}{\left(0.5 \cdot \frac{b \cdot x}{y}\right)} + \frac{x}{y} \]
    10. Step-by-step derivation
      1. associate-*r/55.5%

        \[\leadsto b \cdot \left(0.5 \cdot \color{blue}{\left(b \cdot \frac{x}{y}\right)}\right) + \frac{x}{y} \]
      2. *-commutative55.5%

        \[\leadsto b \cdot \color{blue}{\left(\left(b \cdot \frac{x}{y}\right) \cdot 0.5\right)} + \frac{x}{y} \]
      3. associate-*l*55.5%

        \[\leadsto b \cdot \color{blue}{\left(b \cdot \left(\frac{x}{y} \cdot 0.5\right)\right)} + \frac{x}{y} \]
      4. associate-*l/55.5%

        \[\leadsto b \cdot \left(b \cdot \color{blue}{\frac{x \cdot 0.5}{y}}\right) + \frac{x}{y} \]
    11. Simplified55.5%

      \[\leadsto b \cdot \color{blue}{\left(b \cdot \frac{x \cdot 0.5}{y}\right)} + \frac{x}{y} \]
    12. Taylor expanded in b around 0 55.7%

      \[\leadsto b \cdot \color{blue}{\left(0.5 \cdot \frac{b \cdot x}{y}\right)} + \frac{x}{y} \]
    13. Step-by-step derivation
      1. associate-/l*55.5%

        \[\leadsto b \cdot \left(0.5 \cdot \color{blue}{\left(b \cdot \frac{x}{y}\right)}\right) + \frac{x}{y} \]
      2. *-commutative55.5%

        \[\leadsto b \cdot \left(0.5 \cdot \color{blue}{\left(\frac{x}{y} \cdot b\right)}\right) + \frac{x}{y} \]
      3. associate-*l*55.5%

        \[\leadsto b \cdot \color{blue}{\left(\left(0.5 \cdot \frac{x}{y}\right) \cdot b\right)} + \frac{x}{y} \]
      4. associate-*r/55.5%

        \[\leadsto b \cdot \left(\color{blue}{\frac{0.5 \cdot x}{y}} \cdot b\right) + \frac{x}{y} \]
      5. *-commutative55.5%

        \[\leadsto b \cdot \left(\frac{\color{blue}{x \cdot 0.5}}{y} \cdot b\right) + \frac{x}{y} \]
      6. associate-/l*55.5%

        \[\leadsto b \cdot \left(\color{blue}{\left(x \cdot \frac{0.5}{y}\right)} \cdot b\right) + \frac{x}{y} \]
      7. associate-*l*60.4%

        \[\leadsto b \cdot \color{blue}{\left(x \cdot \left(\frac{0.5}{y} \cdot b\right)\right)} + \frac{x}{y} \]
    14. Simplified60.4%

      \[\leadsto b \cdot \color{blue}{\left(x \cdot \left(\frac{0.5}{y} \cdot b\right)\right)} + \frac{x}{y} \]

    if -1.95e118 < b

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.8%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.8%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.1%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified75.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 71.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*69.0%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow69.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified69.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 50.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 31.7%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    10. Step-by-step derivation
      1. distribute-lft-out35.4%

        \[\leadsto \frac{x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      2. distribute-rgt1-in35.4%

        \[\leadsto \frac{x}{a \cdot \color{blue}{\left(\left(b + 1\right) \cdot y\right)}} \]
    11. Simplified35.4%

      \[\leadsto \frac{x}{\color{blue}{a \cdot \left(\left(b + 1\right) \cdot y\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification39.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} + b \cdot \left(x \cdot \left(b \cdot \frac{0.5}{y}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 15: 40.2% accurate, 17.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} + b \cdot \left(\frac{x \cdot b}{y} \cdot 0.5\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -1.95e+118)
   (+ (/ x y) (* b (* (/ (* x b) y) 0.5)))
   (/ x (* a (* y (+ 1.0 b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.95e+118) {
		tmp = (x / y) + (b * (((x * b) / y) * 0.5));
	} else {
		tmp = x / (a * (y * (1.0 + b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-1.95d+118)) then
        tmp = (x / y) + (b * (((x * b) / y) * 0.5d0))
    else
        tmp = x / (a * (y * (1.0d0 + b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.95e+118) {
		tmp = (x / y) + (b * (((x * b) / y) * 0.5));
	} else {
		tmp = x / (a * (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -1.95e+118:
		tmp = (x / y) + (b * (((x * b) / y) * 0.5))
	else:
		tmp = x / (a * (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -1.95e+118)
		tmp = Float64(Float64(x / y) + Float64(b * Float64(Float64(Float64(x * b) / y) * 0.5)));
	else
		tmp = Float64(x / Float64(a * Float64(y * Float64(1.0 + b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -1.95e+118)
		tmp = (x / y) + (b * (((x * b) / y) * 0.5));
	else
		tmp = x / (a * (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -1.95e+118], N[(N[(x / y), $MachinePrecision] + N[(b * N[(N[(N[(x * b), $MachinePrecision] / y), $MachinePrecision] * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\
\;\;\;\;\frac{x}{y} + b \cdot \left(\frac{x \cdot b}{y} \cdot 0.5\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.95e118

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*79.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+79.5%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define79.5%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 72.0%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-172.0%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified72.0%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around 0 55.7%

      \[\leadsto \color{blue}{b \cdot \left(-1 \cdot \frac{x}{y} + 0.5 \cdot \frac{b \cdot x}{y}\right) + \frac{x}{y}} \]
    9. Taylor expanded in b around inf 55.7%

      \[\leadsto b \cdot \color{blue}{\left(0.5 \cdot \frac{b \cdot x}{y}\right)} + \frac{x}{y} \]

    if -1.95e118 < b

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.8%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.8%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.1%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified75.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 71.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*69.0%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow69.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified69.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 50.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 31.7%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    10. Step-by-step derivation
      1. distribute-lft-out35.4%

        \[\leadsto \frac{x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      2. distribute-rgt1-in35.4%

        \[\leadsto \frac{x}{a \cdot \color{blue}{\left(\left(b + 1\right) \cdot y\right)}} \]
    11. Simplified35.4%

      \[\leadsto \frac{x}{\color{blue}{a \cdot \left(\left(b + 1\right) \cdot y\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification38.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} + b \cdot \left(\frac{x \cdot b}{y} \cdot 0.5\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 16: 37.7% accurate, 22.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -2.7 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} - x \cdot \frac{b}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -2.7e+118) (- (/ x y) (* x (/ b y))) (/ x (* a (* y (+ 1.0 b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -2.7e+118) {
		tmp = (x / y) - (x * (b / y));
	} else {
		tmp = x / (a * (y * (1.0 + b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-2.7d+118)) then
        tmp = (x / y) - (x * (b / y))
    else
        tmp = x / (a * (y * (1.0d0 + b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -2.7e+118) {
		tmp = (x / y) - (x * (b / y));
	} else {
		tmp = x / (a * (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -2.7e+118:
		tmp = (x / y) - (x * (b / y))
	else:
		tmp = x / (a * (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -2.7e+118)
		tmp = Float64(Float64(x / y) - Float64(x * Float64(b / y)));
	else
		tmp = Float64(x / Float64(a * Float64(y * Float64(1.0 + b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -2.7e+118)
		tmp = (x / y) - (x * (b / y));
	else
		tmp = x / (a * (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -2.7e+118], N[(N[(x / y), $MachinePrecision] - N[(x * N[(b / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -2.7 \cdot 10^{+118}:\\
\;\;\;\;\frac{x}{y} - x \cdot \frac{b}{y}\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -2.7e118

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*79.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+79.5%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define79.5%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 72.0%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-172.0%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified72.0%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around 0 55.7%

      \[\leadsto \color{blue}{b \cdot \left(-1 \cdot \frac{x}{y} + 0.5 \cdot \frac{b \cdot x}{y}\right) + \frac{x}{y}} \]
    9. Taylor expanded in b around 0 31.1%

      \[\leadsto \color{blue}{-1 \cdot \frac{b \cdot x}{y}} + \frac{x}{y} \]
    10. Step-by-step derivation
      1. mul-1-neg31.1%

        \[\leadsto \color{blue}{\left(-\frac{b \cdot x}{y}\right)} + \frac{x}{y} \]
      2. *-commutative31.1%

        \[\leadsto \left(-\frac{\color{blue}{x \cdot b}}{y}\right) + \frac{x}{y} \]
      3. distribute-frac-neg231.1%

        \[\leadsto \color{blue}{\frac{x \cdot b}{-y}} + \frac{x}{y} \]
      4. associate-/l*38.5%

        \[\leadsto \color{blue}{x \cdot \frac{b}{-y}} + \frac{x}{y} \]
    11. Simplified38.5%

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

    if -2.7e118 < b

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.8%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.8%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.1%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified75.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 71.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*69.0%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow69.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified69.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 50.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 31.7%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    10. Step-by-step derivation
      1. distribute-lft-out35.4%

        \[\leadsto \frac{x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      2. distribute-rgt1-in35.4%

        \[\leadsto \frac{x}{a \cdot \color{blue}{\left(\left(b + 1\right) \cdot y\right)}} \]
    11. Simplified35.4%

      \[\leadsto \frac{x}{\color{blue}{a \cdot \left(\left(b + 1\right) \cdot y\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification35.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -2.7 \cdot 10^{+118}:\\ \;\;\;\;\frac{x}{y} - x \cdot \frac{b}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 17: 36.6% accurate, 22.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.22 \cdot 10^{+119}:\\ \;\;\;\;\frac{x}{y} \cdot \left(1 - b\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -1.22e+119) (* (/ x y) (- 1.0 b)) (/ x (* a (* y (+ 1.0 b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.22e+119) {
		tmp = (x / y) * (1.0 - b);
	} else {
		tmp = x / (a * (y * (1.0 + b)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= (-1.22d+119)) then
        tmp = (x / y) * (1.0d0 - b)
    else
        tmp = x / (a * (y * (1.0d0 + b)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -1.22e+119) {
		tmp = (x / y) * (1.0 - b);
	} else {
		tmp = x / (a * (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -1.22e+119:
		tmp = (x / y) * (1.0 - b)
	else:
		tmp = x / (a * (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -1.22e+119)
		tmp = Float64(Float64(x / y) * Float64(1.0 - b));
	else
		tmp = Float64(x / Float64(a * Float64(y * Float64(1.0 + b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= -1.22e+119)
		tmp = (x / y) * (1.0 - b);
	else
		tmp = x / (a * (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -1.22e+119], N[(N[(x / y), $MachinePrecision] * N[(1.0 - b), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.22 \cdot 10^{+119}:\\
\;\;\;\;\frac{x}{y} \cdot \left(1 - b\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.2200000000000001e119

    1. Initial program 100.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. *-commutative100.0%

        \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
      2. associate-/l*79.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. associate--l+79.5%

        \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      4. fma-define79.5%

        \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
      5. sub-neg79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
      6. metadata-eval79.5%

        \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    3. Simplified79.5%

      \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
    4. Add Preprocessing
    5. Taylor expanded in b around inf 72.0%

      \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
    6. Step-by-step derivation
      1. neg-mul-172.0%

        \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    7. Simplified72.0%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
    8. Taylor expanded in b around 0 55.7%

      \[\leadsto \color{blue}{b \cdot \left(-1 \cdot \frac{x}{y} + 0.5 \cdot \frac{b \cdot x}{y}\right) + \frac{x}{y}} \]
    9. Taylor expanded in b around 0 31.1%

      \[\leadsto \color{blue}{-1 \cdot \frac{b \cdot x}{y} + \frac{x}{y}} \]
    10. Step-by-step derivation
      1. fma-define31.1%

        \[\leadsto \color{blue}{\mathsf{fma}\left(-1, \frac{b \cdot x}{y}, \frac{x}{y}\right)} \]
      2. associate-*r/26.4%

        \[\leadsto \mathsf{fma}\left(-1, \color{blue}{b \cdot \frac{x}{y}}, \frac{x}{y}\right) \]
      3. fma-define26.4%

        \[\leadsto \color{blue}{-1 \cdot \left(b \cdot \frac{x}{y}\right) + \frac{x}{y}} \]
      4. neg-mul-126.4%

        \[\leadsto \color{blue}{\left(-b \cdot \frac{x}{y}\right)} + \frac{x}{y} \]
      5. distribute-lft-neg-in26.4%

        \[\leadsto \color{blue}{\left(-b\right) \cdot \frac{x}{y}} + \frac{x}{y} \]
      6. distribute-lft1-in26.4%

        \[\leadsto \color{blue}{\left(\left(-b\right) + 1\right) \cdot \frac{x}{y}} \]
    11. Simplified26.4%

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

    if -1.2200000000000001e119 < b

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.8%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.8%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum83.1%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*79.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative79.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow79.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative74.9%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval75.5%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified75.5%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 71.3%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*69.0%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow69.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval69.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified69.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 50.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 31.7%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    10. Step-by-step derivation
      1. distribute-lft-out35.4%

        \[\leadsto \frac{x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      2. distribute-rgt1-in35.4%

        \[\leadsto \frac{x}{a \cdot \color{blue}{\left(\left(b + 1\right) \cdot y\right)}} \]
    11. Simplified35.4%

      \[\leadsto \frac{x}{\color{blue}{a \cdot \left(\left(b + 1\right) \cdot y\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification34.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.22 \cdot 10^{+119}:\\ \;\;\;\;\frac{x}{y} \cdot \left(1 - b\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot \left(1 + b\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 18: 31.2% accurate, 31.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 5 \cdot 10^{+24}:\\ \;\;\;\;\frac{\frac{x}{y}}{a}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y \cdot a}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= x 5e+24) (/ (/ x y) a) (/ x (* y a))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= 5e+24) {
		tmp = (x / y) / a;
	} else {
		tmp = x / (y * a);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (x <= 5d+24) then
        tmp = (x / y) / a
    else
        tmp = x / (y * a)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (x <= 5e+24) {
		tmp = (x / y) / a;
	} else {
		tmp = x / (y * a);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if x <= 5e+24:
		tmp = (x / y) / a
	else:
		tmp = x / (y * a)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (x <= 5e+24)
		tmp = Float64(Float64(x / y) / a);
	else
		tmp = Float64(x / Float64(y * a));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (x <= 5e+24)
		tmp = (x / y) / a;
	else
		tmp = x / (y * a);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[x, 5e+24], N[(N[(x / y), $MachinePrecision] / a), $MachinePrecision], N[(x / N[(y * a), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq 5 \cdot 10^{+24}:\\
\;\;\;\;\frac{\frac{x}{y}}{a}\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{y \cdot a}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < 5.00000000000000045e24

    1. Initial program 98.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*98.7%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+98.7%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum84.3%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*80.9%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative80.9%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow80.9%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff75.6%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative75.6%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow76.3%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg76.3%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval76.3%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified76.3%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 70.8%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*66.9%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow67.6%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg67.6%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval67.6%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified67.6%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 55.3%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 25.5%

      \[\leadsto \color{blue}{\frac{x}{a \cdot y}} \]
    10. Step-by-step derivation
      1. associate-/l/27.7%

        \[\leadsto \color{blue}{\frac{\frac{x}{y}}{a}} \]
    11. Simplified27.7%

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

    if 5.00000000000000045e24 < x

    1. Initial program 99.9%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-/l*99.9%

        \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
      2. associate--l+99.9%

        \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
      3. exp-sum79.5%

        \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
      4. associate-/l*77.5%

        \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
      5. *-commutative77.5%

        \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      6. exp-to-pow77.5%

        \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
      7. exp-diff61.2%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
      8. *-commutative61.2%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      9. exp-to-pow61.2%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
      10. sub-neg61.2%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
      11. metadata-eval61.2%

        \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
    3. Simplified61.2%

      \[\leadsto \color{blue}{x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + -1\right)}}{e^{b}}}{y}\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in y around 0 69.6%

      \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    6. Step-by-step derivation
      1. associate-/r*67.5%

        \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
      2. exp-to-pow67.5%

        \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
      3. sub-neg67.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
      4. metadata-eval67.5%

        \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
    7. Simplified67.5%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
    8. Taylor expanded in t around 0 58.2%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Taylor expanded in b around 0 36.6%

      \[\leadsto \color{blue}{\frac{x}{a \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification29.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 5 \cdot 10^{+24}:\\ \;\;\;\;\frac{\frac{x}{y}}{a}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y \cdot a}\\ \end{array} \]
  5. Add Preprocessing

Alternative 19: 31.0% accurate, 63.0× speedup?

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

\\
\frac{x}{y \cdot a}
\end{array}
Derivation
  1. Initial program 98.7%

    \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
  2. Step-by-step derivation
    1. associate-/l*99.0%

      \[\leadsto \color{blue}{x \cdot \frac{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y}} \]
    2. associate--l+99.0%

      \[\leadsto x \cdot \frac{e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}}}{y} \]
    3. exp-sum83.4%

      \[\leadsto x \cdot \frac{\color{blue}{e^{y \cdot \log z} \cdot e^{\left(t - 1\right) \cdot \log a - b}}}{y} \]
    4. associate-/l*80.2%

      \[\leadsto x \cdot \color{blue}{\left(e^{y \cdot \log z} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right)} \]
    5. *-commutative80.2%

      \[\leadsto x \cdot \left(e^{\color{blue}{\log z \cdot y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
    6. exp-to-pow80.2%

      \[\leadsto x \cdot \left(\color{blue}{{z}^{y}} \cdot \frac{e^{\left(t - 1\right) \cdot \log a - b}}{y}\right) \]
    7. exp-diff72.8%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\color{blue}{\frac{e^{\left(t - 1\right) \cdot \log a}}{e^{b}}}}{y}\right) \]
    8. *-commutative72.8%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{e^{\color{blue}{\log a \cdot \left(t - 1\right)}}}{e^{b}}}{y}\right) \]
    9. exp-to-pow73.4%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}}}{y}\right) \]
    10. sub-neg73.4%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}}}{y}\right) \]
    11. metadata-eval73.4%

      \[\leadsto x \cdot \left({z}^{y} \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}}}{y}\right) \]
  3. Simplified73.4%

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

    \[\leadsto x \cdot \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
  6. Step-by-step derivation
    1. associate-/r*67.1%

      \[\leadsto x \cdot \color{blue}{\frac{\frac{e^{\log a \cdot \left(t - 1\right)}}{y}}{e^{b}}} \]
    2. exp-to-pow67.6%

      \[\leadsto x \cdot \frac{\frac{\color{blue}{{a}^{\left(t - 1\right)}}}{y}}{e^{b}} \]
    3. sub-neg67.6%

      \[\leadsto x \cdot \frac{\frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{y}}{e^{b}} \]
    4. metadata-eval67.6%

      \[\leadsto x \cdot \frac{\frac{{a}^{\left(t + \color{blue}{-1}\right)}}{y}}{e^{b}} \]
  7. Simplified67.6%

    \[\leadsto x \cdot \color{blue}{\frac{\frac{{a}^{\left(t + -1\right)}}{y}}{e^{b}}} \]
  8. Taylor expanded in t around 0 55.8%

    \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
  9. Taylor expanded in b around 0 27.6%

    \[\leadsto \color{blue}{\frac{x}{a \cdot y}} \]
  10. Final simplification27.6%

    \[\leadsto \frac{x}{y \cdot a} \]
  11. Add Preprocessing

Alternative 20: 15.5% accurate, 105.0× speedup?

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

\\
\frac{x}{y}
\end{array}
Derivation
  1. Initial program 98.7%

    \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
  2. Step-by-step derivation
    1. *-commutative98.7%

      \[\leadsto \frac{\color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot x}}{y} \]
    2. associate-/l*87.0%

      \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
    3. associate--l+87.0%

      \[\leadsto e^{\color{blue}{y \cdot \log z + \left(\left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
    4. fma-define87.0%

      \[\leadsto e^{\color{blue}{\mathsf{fma}\left(y, \log z, \left(t - 1\right) \cdot \log a - b\right)}} \cdot \frac{x}{y} \]
    5. sub-neg87.0%

      \[\leadsto e^{\mathsf{fma}\left(y, \log z, \color{blue}{\left(t + \left(-1\right)\right)} \cdot \log a - b\right)} \cdot \frac{x}{y} \]
    6. metadata-eval87.0%

      \[\leadsto e^{\mathsf{fma}\left(y, \log z, \left(t + \color{blue}{-1}\right) \cdot \log a - b\right)} \cdot \frac{x}{y} \]
  3. Simplified87.0%

    \[\leadsto \color{blue}{e^{\mathsf{fma}\left(y, \log z, \left(t + -1\right) \cdot \log a - b\right)} \cdot \frac{x}{y}} \]
  4. Add Preprocessing
  5. Taylor expanded in b around inf 40.2%

    \[\leadsto e^{\color{blue}{-1 \cdot b}} \cdot \frac{x}{y} \]
  6. Step-by-step derivation
    1. neg-mul-140.2%

      \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
  7. Simplified40.2%

    \[\leadsto e^{\color{blue}{-b}} \cdot \frac{x}{y} \]
  8. Taylor expanded in b around 0 14.0%

    \[\leadsto \color{blue}{\frac{x}{y}} \]
  9. Add Preprocessing

Developer target: 72.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {a}^{\left(t - 1\right)}\\ t_2 := \frac{x \cdot \frac{t\_1}{y}}{\left(b + 1\right) - y \cdot \log z}\\ \mathbf{if}\;t < -0.8845848504127471:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;t < 852031.2288374073:\\ \;\;\;\;\frac{\frac{x}{y} \cdot t\_1}{e^{b - \log z \cdot y}}\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (pow a (- t 1.0)))
        (t_2 (/ (* x (/ t_1 y)) (- (+ b 1.0) (* y (log z))))))
   (if (< t -0.8845848504127471)
     t_2
     (if (< t 852031.2288374073)
       (/ (* (/ x y) t_1) (exp (- b (* (log z) y))))
       t_2))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = pow(a, (t - 1.0));
	double t_2 = (x * (t_1 / y)) / ((b + 1.0) - (y * log(z)));
	double tmp;
	if (t < -0.8845848504127471) {
		tmp = t_2;
	} else if (t < 852031.2288374073) {
		tmp = ((x / y) * t_1) / exp((b - (log(z) * y)));
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = a ** (t - 1.0d0)
    t_2 = (x * (t_1 / y)) / ((b + 1.0d0) - (y * log(z)))
    if (t < (-0.8845848504127471d0)) then
        tmp = t_2
    else if (t < 852031.2288374073d0) then
        tmp = ((x / y) * t_1) / exp((b - (log(z) * y)))
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = Math.pow(a, (t - 1.0));
	double t_2 = (x * (t_1 / y)) / ((b + 1.0) - (y * Math.log(z)));
	double tmp;
	if (t < -0.8845848504127471) {
		tmp = t_2;
	} else if (t < 852031.2288374073) {
		tmp = ((x / y) * t_1) / Math.exp((b - (Math.log(z) * y)));
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = math.pow(a, (t - 1.0))
	t_2 = (x * (t_1 / y)) / ((b + 1.0) - (y * math.log(z)))
	tmp = 0
	if t < -0.8845848504127471:
		tmp = t_2
	elif t < 852031.2288374073:
		tmp = ((x / y) * t_1) / math.exp((b - (math.log(z) * y)))
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = a ^ Float64(t - 1.0)
	t_2 = Float64(Float64(x * Float64(t_1 / y)) / Float64(Float64(b + 1.0) - Float64(y * log(z))))
	tmp = 0.0
	if (t < -0.8845848504127471)
		tmp = t_2;
	elseif (t < 852031.2288374073)
		tmp = Float64(Float64(Float64(x / y) * t_1) / exp(Float64(b - Float64(log(z) * y))));
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = a ^ (t - 1.0);
	t_2 = (x * (t_1 / y)) / ((b + 1.0) - (y * log(z)));
	tmp = 0.0;
	if (t < -0.8845848504127471)
		tmp = t_2;
	elseif (t < 852031.2288374073)
		tmp = ((x / y) * t_1) / exp((b - (log(z) * y)));
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[Power[a, N[(t - 1.0), $MachinePrecision]], $MachinePrecision]}, Block[{t$95$2 = N[(N[(x * N[(t$95$1 / y), $MachinePrecision]), $MachinePrecision] / N[(N[(b + 1.0), $MachinePrecision] - N[(y * N[Log[z], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t, -0.8845848504127471], t$95$2, If[Less[t, 852031.2288374073], N[(N[(N[(x / y), $MachinePrecision] * t$95$1), $MachinePrecision] / N[Exp[N[(b - N[(N[Log[z], $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], t$95$2]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {a}^{\left(t - 1\right)}\\
t_2 := \frac{x \cdot \frac{t\_1}{y}}{\left(b + 1\right) - y \cdot \log z}\\
\mathbf{if}\;t < -0.8845848504127471:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;t < 852031.2288374073:\\
\;\;\;\;\frac{\frac{x}{y} \cdot t\_1}{e^{b - \log z \cdot y}}\\

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


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024102 
(FPCore (x y z t a b)
  :name "Numeric.SpecFunctions:incompleteBetaWorker from math-functions-0.1.5.2, A"
  :precision binary64

  :alt
  (if (< t -0.8845848504127471) (/ (* x (/ (pow a (- t 1.0)) y)) (- (+ b 1.0) (* y (log z)))) (if (< t 852031.2288374073) (/ (* (/ x y) (pow a (- t 1.0))) (exp (- b (* (log z) y)))) (/ (* x (/ (pow a (- t 1.0)) y)) (- (+ b 1.0) (* y (log z))))))

  (/ (* x (exp (- (+ (* y (log z)) (* (- t 1.0) (log a))) b))) y))