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

Percentage Accurate: 98.2% → 98.2%
Time: 20.0s
Alternatives: 22
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 22 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: 98.2% 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: 98.2% 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}
Derivation
  1. Initial program 97.4%

    \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
  2. Final simplification97.4%

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

Alternative 2: 92.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t + -1 \leq -2 \cdot 10^{+42} \lor \neg \left(t + -1 \leq -1\right):\\ \;\;\;\;\frac{x \cdot e^{\left(t + -1\right) \cdot \log a - b}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot e^{\left(y \cdot \log z - \log a\right) - b}}{y}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= (+ t -1.0) -2e+42) (not (<= (+ t -1.0) -1.0)))
   (/ (* x (exp (- (* (+ t -1.0) (log a)) 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 + -1.0) <= -2e+42) || !((t + -1.0) <= -1.0)) {
		tmp = (x * exp((((t + -1.0) * log(a)) - 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 + (-1.0d0)) <= (-2d+42)) .or. (.not. ((t + (-1.0d0)) <= (-1.0d0)))) then
        tmp = (x * exp((((t + (-1.0d0)) * log(a)) - 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 + -1.0) <= -2e+42) || !((t + -1.0) <= -1.0)) {
		tmp = (x * Math.exp((((t + -1.0) * Math.log(a)) - 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 + -1.0) <= -2e+42) or not ((t + -1.0) <= -1.0):
		tmp = (x * math.exp((((t + -1.0) * math.log(a)) - 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 ((Float64(t + -1.0) <= -2e+42) || !(Float64(t + -1.0) <= -1.0))
		tmp = Float64(Float64(x * exp(Float64(Float64(Float64(t + -1.0) * log(a)) - b))) / y);
	else
		tmp = Float64(Float64(x * 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 + -1.0) <= -2e+42) || ~(((t + -1.0) <= -1.0)))
		tmp = (x * exp((((t + -1.0) * log(a)) - 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[N[(t + -1.0), $MachinePrecision], -2e+42], N[Not[LessEqual[N[(t + -1.0), $MachinePrecision], -1.0]], $MachinePrecision]], N[(N[(x * N[Exp[N[(N[(N[(t + -1.0), $MachinePrecision] * N[Log[a], $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision], N[(N[(x * N[Exp[N[(N[(N[(y * N[Log[z], $MachinePrecision]), $MachinePrecision] - N[Log[a], $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t + -1 \leq -2 \cdot 10^{+42} \lor \neg \left(t + -1 \leq -1\right):\\
\;\;\;\;\frac{x \cdot e^{\left(t + -1\right) \cdot \log a - b}}{y}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (-.f64 t 1) < -2.00000000000000009e42 or -1 < (-.f64 t 1)

    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. Taylor expanded in y around 0 94.3%

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

    if -2.00000000000000009e42 < (-.f64 t 1) < -1

    1. Initial program 95.2%

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

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative94.4%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg94.4%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg94.4%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified94.4%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification94.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t + -1 \leq -2 \cdot 10^{+42} \lor \neg \left(t + -1 \leq -1\right):\\ \;\;\;\;\frac{x \cdot e^{\left(t + -1\right) \cdot \log a - b}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot e^{\left(y \cdot \log z - \log a\right) - b}}{y}\\ \end{array} \]

Alternative 3: 78.3% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}\\ t_2 := \frac{x}{\frac{a}{\frac{{z}^{y}}{y}}}\\ \mathbf{if}\;y \leq -160000000:\\ \;\;\;\;t_2\\ \mathbf{elif}\;y \leq -4.4 \cdot 10^{-157}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;y \leq 4.2 \cdot 10^{-137}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \mathbf{elif}\;y \leq 10^{+41}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;t_2\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (* (/ (pow a (+ t -1.0)) (exp b)) (/ x y)))
        (t_2 (/ x (/ a (/ (pow z y) y)))))
   (if (<= y -160000000.0)
     t_2
     (if (<= y -4.4e-157)
       t_1
       (if (<= y 4.2e-137)
         (/ x (* a (* y (exp b))))
         (if (<= y 1e+41) t_1 t_2))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (pow(a, (t + -1.0)) / exp(b)) * (x / y);
	double t_2 = x / (a / (pow(z, y) / y));
	double tmp;
	if (y <= -160000000.0) {
		tmp = t_2;
	} else if (y <= -4.4e-157) {
		tmp = t_1;
	} else if (y <= 4.2e-137) {
		tmp = x / (a * (y * exp(b)));
	} else if (y <= 1e+41) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = ((a ** (t + (-1.0d0))) / exp(b)) * (x / y)
    t_2 = x / (a / ((z ** y) / y))
    if (y <= (-160000000.0d0)) then
        tmp = t_2
    else if (y <= (-4.4d-157)) then
        tmp = t_1
    else if (y <= 4.2d-137) then
        tmp = x / (a * (y * exp(b)))
    else if (y <= 1d+41) then
        tmp = t_1
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (Math.pow(a, (t + -1.0)) / Math.exp(b)) * (x / y);
	double t_2 = x / (a / (Math.pow(z, y) / y));
	double tmp;
	if (y <= -160000000.0) {
		tmp = t_2;
	} else if (y <= -4.4e-157) {
		tmp = t_1;
	} else if (y <= 4.2e-137) {
		tmp = x / (a * (y * Math.exp(b)));
	} else if (y <= 1e+41) {
		tmp = t_1;
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (math.pow(a, (t + -1.0)) / math.exp(b)) * (x / y)
	t_2 = x / (a / (math.pow(z, y) / y))
	tmp = 0
	if y <= -160000000.0:
		tmp = t_2
	elif y <= -4.4e-157:
		tmp = t_1
	elif y <= 4.2e-137:
		tmp = x / (a * (y * math.exp(b)))
	elif y <= 1e+41:
		tmp = t_1
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64((a ^ Float64(t + -1.0)) / exp(b)) * Float64(x / y))
	t_2 = Float64(x / Float64(a / Float64((z ^ y) / y)))
	tmp = 0.0
	if (y <= -160000000.0)
		tmp = t_2;
	elseif (y <= -4.4e-157)
		tmp = t_1;
	elseif (y <= 4.2e-137)
		tmp = Float64(x / Float64(a * Float64(y * exp(b))));
	elseif (y <= 1e+41)
		tmp = t_1;
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = ((a ^ (t + -1.0)) / exp(b)) * (x / y);
	t_2 = x / (a / ((z ^ y) / y));
	tmp = 0.0;
	if (y <= -160000000.0)
		tmp = t_2;
	elseif (y <= -4.4e-157)
		tmp = t_1;
	elseif (y <= 4.2e-137)
		tmp = x / (a * (y * exp(b)));
	elseif (y <= 1e+41)
		tmp = t_1;
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(N[Power[a, N[(t + -1.0), $MachinePrecision]], $MachinePrecision] / N[Exp[b], $MachinePrecision]), $MachinePrecision] * N[(x / y), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x / N[(a / N[(N[Power[z, y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -160000000.0], t$95$2, If[LessEqual[y, -4.4e-157], t$95$1, If[LessEqual[y, 4.2e-137], N[(x / N[(a * N[(y * N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1e+41], t$95$1, t$95$2]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}\\
t_2 := \frac{x}{\frac{a}{\frac{{z}^{y}}{y}}}\\
\mathbf{if}\;y \leq -160000000:\\
\;\;\;\;t_2\\

\mathbf{elif}\;y \leq -4.4 \cdot 10^{-157}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;y \leq 4.2 \cdot 10^{-137}:\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\

\mathbf{elif}\;y \leq 10^{+41}:\\
\;\;\;\;t_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.6e8 or 1.00000000000000001e41 < y

    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/83.3%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative83.3%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative83.3%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+83.3%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum69.2%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative69.2%

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

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg69.2%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval69.2%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff53.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative53.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow53.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified53.3%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in b around 0 70.9%

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*70.9%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative70.9%

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

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative70.9%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum91.8%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum70.9%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative70.9%

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

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative70.9%

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

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{a}^{\left(t - 1\right)}} \cdot {z}^{y}}} \]
      11. sub-neg70.9%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot {z}^{y}}} \]
      12. metadata-eval70.9%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\left(t + \color{blue}{-1}\right)} \cdot {z}^{y}}} \]
    6. Simplified70.9%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
    7. Taylor expanded in t around 0 66.9%

      \[\leadsto \frac{x}{\color{blue}{\frac{a \cdot y}{{z}^{y}}}} \]
    8. Step-by-step derivation
      1. associate-/l*82.0%

        \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
    9. Simplified82.0%

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

    if -1.6e8 < y < -4.4000000000000002e-157 or 4.19999999999999983e-137 < y < 1.00000000000000001e41

    1. Initial program 97.2%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/95.8%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative95.8%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative95.8%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+95.8%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum86.6%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative86.6%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow87.5%

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

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval87.5%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff81.4%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative81.4%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow81.4%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified81.4%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 84.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative84.9%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative84.9%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac86.6%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow87.6%

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

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

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

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

    if -4.4000000000000002e-157 < y < 4.19999999999999983e-137

    1. Initial program 93.3%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/81.6%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative81.6%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative81.6%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+81.6%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum64.7%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative64.7%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow66.4%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg66.4%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval66.4%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff66.4%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative66.4%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow66.4%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified66.4%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 67.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative67.9%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative67.9%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac64.7%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow66.4%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg66.4%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval66.4%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified66.4%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 78.0%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification82.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -160000000:\\ \;\;\;\;\frac{x}{\frac{a}{\frac{{z}^{y}}{y}}}\\ \mathbf{elif}\;y \leq -4.4 \cdot 10^{-157}:\\ \;\;\;\;\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}\\ \mathbf{elif}\;y \leq 4.2 \cdot 10^{-137}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \mathbf{elif}\;y \leq 10^{+41}:\\ \;\;\;\;\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{a}{\frac{{z}^{y}}{y}}}\\ \end{array} \]

Alternative 4: 80.5% accurate, 1.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t + -1 \leq -2 \cdot 10^{+42} \lor \neg \left(t + -1 \leq 3 \cdot 10^{+112}\right):\\ \;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)}}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot {z}^{y}}{a \cdot \left(y \cdot e^{b}\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= (+ t -1.0) -2e+42) (not (<= (+ t -1.0) 3e+112)))
   (/ x (/ y (pow a (+ t -1.0))))
   (/ (* x (pow z y)) (* a (* y (exp b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (((t + -1.0) <= -2e+42) || !((t + -1.0) <= 3e+112)) {
		tmp = x / (y / pow(a, (t + -1.0)));
	} else {
		tmp = (x * pow(z, y)) / (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 (((t + (-1.0d0)) <= (-2d+42)) .or. (.not. ((t + (-1.0d0)) <= 3d+112))) then
        tmp = x / (y / (a ** (t + (-1.0d0))))
    else
        tmp = (x * (z ** y)) / (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 (((t + -1.0) <= -2e+42) || !((t + -1.0) <= 3e+112)) {
		tmp = x / (y / Math.pow(a, (t + -1.0)));
	} else {
		tmp = (x * Math.pow(z, y)) / (a * (y * Math.exp(b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if ((t + -1.0) <= -2e+42) or not ((t + -1.0) <= 3e+112):
		tmp = x / (y / math.pow(a, (t + -1.0)))
	else:
		tmp = (x * math.pow(z, y)) / (a * (y * math.exp(b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((Float64(t + -1.0) <= -2e+42) || !(Float64(t + -1.0) <= 3e+112))
		tmp = Float64(x / Float64(y / (a ^ Float64(t + -1.0))));
	else
		tmp = Float64(Float64(x * (z ^ y)) / Float64(a * Float64(y * exp(b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (((t + -1.0) <= -2e+42) || ~(((t + -1.0) <= 3e+112)))
		tmp = x / (y / (a ^ (t + -1.0)));
	else
		tmp = (x * (z ^ y)) / (a * (y * exp(b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[N[(t + -1.0), $MachinePrecision], -2e+42], N[Not[LessEqual[N[(t + -1.0), $MachinePrecision], 3e+112]], $MachinePrecision]], N[(x / N[(y / N[Power[a, N[(t + -1.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x * N[Power[z, y], $MachinePrecision]), $MachinePrecision] / N[(a * N[(y * N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t + -1 \leq -2 \cdot 10^{+42} \lor \neg \left(t + -1 \leq 3 \cdot 10^{+112}\right):\\
\;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)}}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (-.f64 t 1) < -2.00000000000000009e42 or 2.99999999999999979e112 < (-.f64 t 1)

    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/84.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative84.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative84.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+84.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum57.9%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative57.9%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow57.9%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg57.9%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval57.9%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff51.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative51.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow51.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified51.6%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in b around 0 71.6%

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*71.6%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative71.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      3. exp-to-pow71.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative71.6%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum94.8%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum71.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative71.6%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      8. exp-to-pow71.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative71.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      10. exp-to-pow71.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{a}^{\left(t - 1\right)}} \cdot {z}^{y}}} \]
      11. sub-neg71.6%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot {z}^{y}}} \]
      12. metadata-eval71.6%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\left(t + \color{blue}{-1}\right)} \cdot {z}^{y}}} \]
    6. Simplified71.6%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
    7. Taylor expanded in y around 0 89.6%

      \[\leadsto \frac{x}{\color{blue}{\frac{y}{e^{\log a \cdot \left(t - 1\right)}}}} \]
    8. Step-by-step derivation
      1. exp-to-pow89.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{a}^{\left(t - 1\right)}}}} \]
    9. Simplified89.6%

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

    if -2.00000000000000009e42 < (-.f64 t 1) < 2.99999999999999979e112

    1. Initial program 95.9%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/87.1%

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

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

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+87.1%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum80.9%

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

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow82.0%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg82.0%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval82.0%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff71.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative71.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow71.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified71.5%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in t around 0 77.2%

      \[\leadsto \color{blue}{\frac{x \cdot {z}^{y}}{a \cdot \left(y \cdot e^{b}\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification81.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t + -1 \leq -2 \cdot 10^{+42} \lor \neg \left(t + -1 \leq 3 \cdot 10^{+112}\right):\\ \;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)}}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot {z}^{y}}{a \cdot \left(y \cdot e^{b}\right)}\\ \end{array} \]

Alternative 5: 81.4% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -3.3 \cdot 10^{+50} \lor \neg \left(b \leq 6 \cdot 10^{+115}\right):\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= b -3.3e+50) (not (<= b 6e+115)))
   (/ x (* a (* y (exp b))))
   (/ x (/ y (* (pow a (+ t -1.0)) (pow z y))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -3.3e+50) || !(b <= 6e+115)) {
		tmp = x / (a * (y * exp(b)));
	} else {
		tmp = x / (y / (pow(a, (t + -1.0)) * pow(z, y)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((b <= (-3.3d+50)) .or. (.not. (b <= 6d+115))) then
        tmp = x / (a * (y * exp(b)))
    else
        tmp = x / (y / ((a ** (t + (-1.0d0))) * (z ** y)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -3.3e+50) || !(b <= 6e+115)) {
		tmp = x / (a * (y * Math.exp(b)));
	} else {
		tmp = x / (y / (Math.pow(a, (t + -1.0)) * Math.pow(z, y)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (b <= -3.3e+50) or not (b <= 6e+115):
		tmp = x / (a * (y * math.exp(b)))
	else:
		tmp = x / (y / (math.pow(a, (t + -1.0)) * math.pow(z, y)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((b <= -3.3e+50) || !(b <= 6e+115))
		tmp = Float64(x / Float64(a * Float64(y * exp(b))));
	else
		tmp = Float64(x / Float64(y / Float64((a ^ Float64(t + -1.0)) * (z ^ y))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((b <= -3.3e+50) || ~((b <= 6e+115)))
		tmp = x / (a * (y * exp(b)));
	else
		tmp = x / (y / ((a ^ (t + -1.0)) * (z ^ y)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[b, -3.3e+50], N[Not[LessEqual[b, 6e+115]], $MachinePrecision]], N[(x / N[(a * N[(y * N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(y / N[(N[Power[a, N[(t + -1.0), $MachinePrecision]], $MachinePrecision] * N[Power[z, y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -3.3 \cdot 10^{+50} \lor \neg \left(b \leq 6 \cdot 10^{+115}\right):\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -3.3e50 or 6.0000000000000001e115 < 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/82.9%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative82.9%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative82.9%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+82.9%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum62.9%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative62.9%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow62.9%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg62.9%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval62.9%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff45.7%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative45.7%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow45.7%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified45.7%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 62.0%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative62.0%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative62.0%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac58.2%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow58.2%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg58.2%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval58.2%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified58.2%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 82.2%

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

    if -3.3e50 < b < 6.0000000000000001e115

    1. Initial program 95.6%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/88.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative88.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative88.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+88.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum79.0%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative79.0%

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

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg80.2%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval80.2%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff76.9%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative76.9%

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

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified76.9%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in b around 0 83.1%

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*84.2%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      3. exp-to-pow84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative84.2%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum94.8%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative84.2%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      8. exp-to-pow84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      10. exp-to-pow85.3%

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

        \[\leadsto \frac{x}{\frac{y}{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot {z}^{y}}} \]
      12. metadata-eval85.3%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\left(t + \color{blue}{-1}\right)} \cdot {z}^{y}}} \]
    6. Simplified85.3%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification84.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -3.3 \cdot 10^{+50} \lor \neg \left(b \leq 6 \cdot 10^{+115}\right):\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}\\ \end{array} \]

Alternative 6: 86.7% accurate, 1.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.9 \cdot 10^{+45} \lor \neg \left(b \leq 2.5 \cdot 10^{-15}\right):\\ \;\;\;\;\frac{x \cdot e^{\left(t + -1\right) \cdot \log a - b}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= b -1.9e+45) (not (<= b 2.5e-15)))
   (/ (* x (exp (- (* (+ t -1.0) (log a)) b))) y)
   (/ x (/ y (* (pow a (+ t -1.0)) (pow z y))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -1.9e+45) || !(b <= 2.5e-15)) {
		tmp = (x * exp((((t + -1.0) * log(a)) - b))) / y;
	} else {
		tmp = x / (y / (pow(a, (t + -1.0)) * pow(z, y)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((b <= (-1.9d+45)) .or. (.not. (b <= 2.5d-15))) then
        tmp = (x * exp((((t + (-1.0d0)) * log(a)) - b))) / y
    else
        tmp = x / (y / ((a ** (t + (-1.0d0))) * (z ** y)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -1.9e+45) || !(b <= 2.5e-15)) {
		tmp = (x * Math.exp((((t + -1.0) * Math.log(a)) - b))) / y;
	} else {
		tmp = x / (y / (Math.pow(a, (t + -1.0)) * Math.pow(z, y)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (b <= -1.9e+45) or not (b <= 2.5e-15):
		tmp = (x * math.exp((((t + -1.0) * math.log(a)) - b))) / y
	else:
		tmp = x / (y / (math.pow(a, (t + -1.0)) * math.pow(z, y)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((b <= -1.9e+45) || !(b <= 2.5e-15))
		tmp = Float64(Float64(x * exp(Float64(Float64(Float64(t + -1.0) * log(a)) - b))) / y);
	else
		tmp = Float64(x / Float64(y / Float64((a ^ Float64(t + -1.0)) * (z ^ y))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((b <= -1.9e+45) || ~((b <= 2.5e-15)))
		tmp = (x * exp((((t + -1.0) * log(a)) - b))) / y;
	else
		tmp = x / (y / ((a ^ (t + -1.0)) * (z ^ y)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[b, -1.9e+45], N[Not[LessEqual[b, 2.5e-15]], $MachinePrecision]], N[(N[(x * N[Exp[N[(N[(N[(t + -1.0), $MachinePrecision] * N[Log[a], $MachinePrecision]), $MachinePrecision] - b), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision], N[(x / N[(y / N[(N[Power[a, N[(t + -1.0), $MachinePrecision]], $MachinePrecision] * N[Power[z, y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.9 \cdot 10^{+45} \lor \neg \left(b \leq 2.5 \cdot 10^{-15}\right):\\
\;\;\;\;\frac{x \cdot e^{\left(t + -1\right) \cdot \log a - b}}{y}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.9000000000000001e45 or 2.5e-15 < 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. Taylor expanded in y around 0 92.8%

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

    if -1.9000000000000001e45 < b < 2.5e-15

    1. Initial program 95.0%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/88.9%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative88.9%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative88.9%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+88.9%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum81.4%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative81.4%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow82.8%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg82.8%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval82.8%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff80.5%

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

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow80.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified80.5%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in b around 0 83.8%

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*85.1%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative85.1%

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

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative85.1%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum95.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum85.1%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative85.1%

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

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative85.1%

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

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

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

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

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification89.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.9 \cdot 10^{+45} \lor \neg \left(b \leq 2.5 \cdot 10^{-15}\right):\\ \;\;\;\;\frac{x \cdot e^{\left(t + -1\right) \cdot \log a - b}}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}\\ \end{array} \]

Alternative 7: 74.6% accurate, 2.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t + -1 \leq -1.68 \cdot 10^{+38} \lor \neg \left(t + -1 \leq 7 \cdot 10^{+80}\right):\\ \;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)}}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{a}{\frac{{z}^{y}}{y}}}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= (+ t -1.0) -1.68e+38) (not (<= (+ t -1.0) 7e+80)))
   (/ x (/ y (pow a (+ t -1.0))))
   (/ x (/ a (/ (pow z y) y)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (((t + -1.0) <= -1.68e+38) || !((t + -1.0) <= 7e+80)) {
		tmp = x / (y / pow(a, (t + -1.0)));
	} else {
		tmp = x / (a / (pow(z, y) / 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 + (-1.0d0)) <= (-1.68d+38)) .or. (.not. ((t + (-1.0d0)) <= 7d+80))) then
        tmp = x / (y / (a ** (t + (-1.0d0))))
    else
        tmp = x / (a / ((z ** y) / 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 + -1.0) <= -1.68e+38) || !((t + -1.0) <= 7e+80)) {
		tmp = x / (y / Math.pow(a, (t + -1.0)));
	} else {
		tmp = x / (a / (Math.pow(z, y) / y));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if ((t + -1.0) <= -1.68e+38) or not ((t + -1.0) <= 7e+80):
		tmp = x / (y / math.pow(a, (t + -1.0)))
	else:
		tmp = x / (a / (math.pow(z, y) / y))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((Float64(t + -1.0) <= -1.68e+38) || !(Float64(t + -1.0) <= 7e+80))
		tmp = Float64(x / Float64(y / (a ^ Float64(t + -1.0))));
	else
		tmp = Float64(x / Float64(a / Float64((z ^ y) / y)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (((t + -1.0) <= -1.68e+38) || ~(((t + -1.0) <= 7e+80)))
		tmp = x / (y / (a ^ (t + -1.0)));
	else
		tmp = x / (a / ((z ^ y) / y));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[N[(t + -1.0), $MachinePrecision], -1.68e+38], N[Not[LessEqual[N[(t + -1.0), $MachinePrecision], 7e+80]], $MachinePrecision]], N[(x / N[(y / N[Power[a, N[(t + -1.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a / N[(N[Power[z, y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t + -1 \leq -1.68 \cdot 10^{+38} \lor \neg \left(t + -1 \leq 7 \cdot 10^{+80}\right):\\
\;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)}}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (-.f64 t 1) < -1.6800000000000001e38 or 6.99999999999999987e80 < (-.f64 t 1)

    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/83.3%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative83.3%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative83.3%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+83.3%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum57.4%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative57.4%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow57.4%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg57.4%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval57.4%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff51.9%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative51.9%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow51.9%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified51.9%

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

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*69.6%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative69.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      3. exp-to-pow69.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative69.6%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum91.8%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum69.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative69.6%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      8. exp-to-pow69.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative69.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      10. exp-to-pow69.6%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{a}^{\left(t - 1\right)}} \cdot {z}^{y}}} \]
      11. sub-neg69.6%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot {z}^{y}}} \]
      12. metadata-eval69.6%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\left(t + \color{blue}{-1}\right)} \cdot {z}^{y}}} \]
    6. Simplified69.6%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
    7. Taylor expanded in y around 0 85.4%

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

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

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

    if -1.6800000000000001e38 < (-.f64 t 1) < 6.99999999999999987e80

    1. Initial program 95.6%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/88.0%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative88.0%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative88.0%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+88.0%

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

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative83.3%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow84.5%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg84.5%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval84.5%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff73.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative73.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow73.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified73.0%

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

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*70.2%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative70.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      3. exp-to-pow70.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative70.2%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum72.9%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum70.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative70.2%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      8. exp-to-pow70.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative70.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      10. exp-to-pow71.3%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{a}^{\left(t - 1\right)}} \cdot {z}^{y}}} \]
      11. sub-neg71.3%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot {z}^{y}}} \]
      12. metadata-eval71.3%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\left(t + \color{blue}{-1}\right)} \cdot {z}^{y}}} \]
    6. Simplified71.3%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
    7. Taylor expanded in t around 0 65.4%

      \[\leadsto \frac{x}{\color{blue}{\frac{a \cdot y}{{z}^{y}}}} \]
    8. Step-by-step derivation
      1. associate-/l*73.4%

        \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
    9. Simplified73.4%

      \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t + -1 \leq -1.68 \cdot 10^{+38} \lor \neg \left(t + -1 \leq 7 \cdot 10^{+80}\right):\\ \;\;\;\;\frac{x}{\frac{y}{{a}^{\left(t + -1\right)}}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{a}{\frac{{z}^{y}}{y}}}\\ \end{array} \]

Alternative 8: 69.8% accurate, 2.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -3.8 \cdot 10^{-9} \lor \neg \left(b \leq 9.5 \cdot 10^{+113}\right):\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y} \cdot \frac{{z}^{y}}{a}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= b -3.8e-9) (not (<= b 9.5e+113)))
   (/ x (* a (* y (exp b))))
   (* (/ x y) (/ (pow z y) a))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -3.8e-9) || !(b <= 9.5e+113)) {
		tmp = x / (a * (y * exp(b)));
	} else {
		tmp = (x / y) * (pow(z, 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 <= (-3.8d-9)) .or. (.not. (b <= 9.5d+113))) then
        tmp = x / (a * (y * exp(b)))
    else
        tmp = (x / y) * ((z ** 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 <= -3.8e-9) || !(b <= 9.5e+113)) {
		tmp = x / (a * (y * Math.exp(b)));
	} else {
		tmp = (x / y) * (Math.pow(z, y) / a);
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (b <= -3.8e-9) or not (b <= 9.5e+113):
		tmp = x / (a * (y * math.exp(b)))
	else:
		tmp = (x / y) * (math.pow(z, y) / a)
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((b <= -3.8e-9) || !(b <= 9.5e+113))
		tmp = Float64(x / Float64(a * Float64(y * exp(b))));
	else
		tmp = Float64(Float64(x / y) * Float64((z ^ y) / a));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((b <= -3.8e-9) || ~((b <= 9.5e+113)))
		tmp = x / (a * (y * exp(b)));
	else
		tmp = (x / y) * ((z ^ y) / a);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[b, -3.8e-9], N[Not[LessEqual[b, 9.5e+113]], $MachinePrecision]], N[(x / N[(a * N[(y * N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(x / y), $MachinePrecision] * N[(N[Power[z, y], $MachinePrecision] / a), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -3.8 \cdot 10^{-9} \lor \neg \left(b \leq 9.5 \cdot 10^{+113}\right):\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -3.80000000000000011e-9 or 9.5000000000000001e113 < b

    1. Initial program 99.2%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/84.9%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative84.9%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative84.9%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+84.9%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum67.4%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative67.4%

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

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

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

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff50.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative50.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow50.0%

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

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 63.5%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative63.5%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative63.5%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac60.9%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow60.9%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg60.9%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval60.9%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified60.9%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 79.5%

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

    if -3.80000000000000011e-9 < b < 9.5000000000000001e113

    1. Initial program 95.8%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Taylor expanded in t around 0 75.0%

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

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg75.0%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg75.0%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified75.0%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in b around 0 73.6%

      \[\leadsto \color{blue}{\frac{x \cdot e^{y \cdot \log z - \log a}}{y}} \]
    6. Step-by-step derivation
      1. *-commutative73.6%

        \[\leadsto \frac{\color{blue}{e^{y \cdot \log z - \log a} \cdot x}}{y} \]
      2. exp-diff73.6%

        \[\leadsto \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}} \cdot x}{y} \]
      3. *-commutative73.6%

        \[\leadsto \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}} \cdot x}{y} \]
      4. exp-to-pow73.6%

        \[\leadsto \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}} \cdot x}{y} \]
      5. rem-exp-log74.7%

        \[\leadsto \frac{\frac{{z}^{y}}{\color{blue}{a}} \cdot x}{y} \]
      6. associate-*l/74.7%

        \[\leadsto \frac{\color{blue}{\frac{{z}^{y} \cdot x}{a}}}{y} \]
      7. *-commutative74.7%

        \[\leadsto \frac{\frac{\color{blue}{x \cdot {z}^{y}}}{a}}{y} \]
      8. associate-/r*67.5%

        \[\leadsto \color{blue}{\frac{x \cdot {z}^{y}}{a \cdot y}} \]
      9. *-commutative67.5%

        \[\leadsto \frac{\color{blue}{{z}^{y} \cdot x}}{a \cdot y} \]
      10. times-frac71.9%

        \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    7. Simplified71.9%

      \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification75.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -3.8 \cdot 10^{-9} \lor \neg \left(b \leq 9.5 \cdot 10^{+113}\right):\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y} \cdot \frac{{z}^{y}}{a}\\ \end{array} \]

Alternative 9: 73.2% accurate, 2.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.25 \cdot 10^{+42} \lor \neg \left(b \leq 9.5 \cdot 10^{+113}\right):\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{a}{\frac{{z}^{y}}{y}}}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (or (<= b -1.25e+42) (not (<= b 9.5e+113)))
   (/ x (* a (* y (exp b))))
   (/ x (/ a (/ (pow z y) y)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -1.25e+42) || !(b <= 9.5e+113)) {
		tmp = x / (a * (y * exp(b)));
	} else {
		tmp = x / (a / (pow(z, y) / y));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if ((b <= (-1.25d+42)) .or. (.not. (b <= 9.5d+113))) then
        tmp = x / (a * (y * exp(b)))
    else
        tmp = x / (a / ((z ** y) / y))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if ((b <= -1.25e+42) || !(b <= 9.5e+113)) {
		tmp = x / (a * (y * Math.exp(b)));
	} else {
		tmp = x / (a / (Math.pow(z, y) / y));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if (b <= -1.25e+42) or not (b <= 9.5e+113):
		tmp = x / (a * (y * math.exp(b)))
	else:
		tmp = x / (a / (math.pow(z, y) / y))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if ((b <= -1.25e+42) || !(b <= 9.5e+113))
		tmp = Float64(x / Float64(a * Float64(y * exp(b))));
	else
		tmp = Float64(x / Float64(a / Float64((z ^ y) / y)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if ((b <= -1.25e+42) || ~((b <= 9.5e+113)))
		tmp = x / (a * (y * exp(b)));
	else
		tmp = x / (a / ((z ^ y) / y));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[Or[LessEqual[b, -1.25e+42], N[Not[LessEqual[b, 9.5e+113]], $MachinePrecision]], N[(x / N[(a * N[(y * N[Exp[b], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a / N[(N[Power[z, y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.25 \cdot 10^{+42} \lor \neg \left(b \leq 9.5 \cdot 10^{+113}\right):\\
\;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.25000000000000002e42 or 9.5000000000000001e113 < 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/82.9%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative82.9%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative82.9%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+82.9%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum62.9%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative62.9%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow62.9%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg62.9%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval62.9%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff45.7%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative45.7%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow45.7%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified45.7%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 62.0%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative62.0%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative62.0%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac58.2%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow58.2%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg58.2%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval58.2%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified58.2%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 82.2%

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

    if -1.25000000000000002e42 < b < 9.5000000000000001e113

    1. Initial program 95.6%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/88.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative88.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative88.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+88.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum79.0%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative79.0%

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

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg80.2%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval80.2%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff76.9%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative76.9%

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

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified76.9%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in b around 0 83.1%

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*84.2%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      3. exp-to-pow84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative84.2%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum94.8%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative84.2%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      8. exp-to-pow84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative84.2%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      10. exp-to-pow85.3%

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

        \[\leadsto \frac{x}{\frac{y}{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot {z}^{y}}} \]
      12. metadata-eval85.3%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\left(t + \color{blue}{-1}\right)} \cdot {z}^{y}}} \]
    6. Simplified85.3%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
    7. Taylor expanded in t around 0 67.2%

      \[\leadsto \frac{x}{\color{blue}{\frac{a \cdot y}{{z}^{y}}}} \]
    8. Step-by-step derivation
      1. associate-/l*75.8%

        \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
    9. Simplified75.8%

      \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.25 \cdot 10^{+42} \lor \neg \left(b \leq 9.5 \cdot 10^{+113}\right):\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot e^{b}\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\frac{a}{\frac{{z}^{y}}{y}}}\\ \end{array} \]

Alternative 10: 59.4% 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 97.4%

    \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
  2. Step-by-step derivation
    1. associate-*l/86.0%

      \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
    2. *-commutative86.0%

      \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
    3. +-commutative86.0%

      \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
    4. associate--l+86.0%

      \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
    5. exp-sum72.4%

      \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
    6. *-commutative72.4%

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

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

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

      \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
    10. exp-diff64.1%

      \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
    11. *-commutative64.1%

      \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    12. exp-to-pow64.1%

      \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
  3. Simplified64.1%

    \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
  4. Taylor expanded in y around 0 64.3%

    \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
  5. Step-by-step derivation
    1. *-commutative64.3%

      \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
    2. *-commutative64.3%

      \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
    3. times-frac61.4%

      \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    4. exp-to-pow62.1%

      \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
    5. sub-neg62.1%

      \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
    6. metadata-eval62.1%

      \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
  6. Simplified62.1%

    \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
  7. Taylor expanded in t around 0 58.0%

    \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
  8. Final simplification58.0%

    \[\leadsto \frac{x}{a \cdot \left(y \cdot e^{b}\right)} \]

Alternative 11: 41.6% accurate, 11.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{x}{y \cdot a}\\ \mathbf{if}\;b \leq -6.2 \cdot 10^{-31}:\\ \;\;\;\;\left(t_1 - \frac{x}{y} \cdot \frac{b}{a}\right) + \left(0.5 \cdot \left(b \cdot b\right)\right) \cdot t_1\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ x (* y a))))
   (if (<= b -6.2e-31)
     (+ (- t_1 (* (/ x y) (/ b a))) (* (* 0.5 (* b b)) t_1))
     (* (/ 1.0 a) (/ x (* y (+ 1.0 b)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = x / (y * a);
	double tmp;
	if (b <= -6.2e-31) {
		tmp = (t_1 - ((x / y) * (b / a))) + ((0.5 * (b * b)) * t_1);
	} else {
		tmp = (1.0 / a) * (x / (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) :: t_1
    real(8) :: tmp
    t_1 = x / (y * a)
    if (b <= (-6.2d-31)) then
        tmp = (t_1 - ((x / y) * (b / a))) + ((0.5d0 * (b * b)) * t_1)
    else
        tmp = (1.0d0 / a) * (x / (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 t_1 = x / (y * a);
	double tmp;
	if (b <= -6.2e-31) {
		tmp = (t_1 - ((x / y) * (b / a))) + ((0.5 * (b * b)) * t_1);
	} else {
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = x / (y * a)
	tmp = 0
	if b <= -6.2e-31:
		tmp = (t_1 - ((x / y) * (b / a))) + ((0.5 * (b * b)) * t_1)
	else:
		tmp = (1.0 / a) * (x / (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(x / Float64(y * a))
	tmp = 0.0
	if (b <= -6.2e-31)
		tmp = Float64(Float64(t_1 - Float64(Float64(x / y) * Float64(b / a))) + Float64(Float64(0.5 * Float64(b * b)) * t_1));
	else
		tmp = Float64(Float64(1.0 / a) * Float64(x / Float64(y * Float64(1.0 + b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = x / (y * a);
	tmp = 0.0;
	if (b <= -6.2e-31)
		tmp = (t_1 - ((x / y) * (b / a))) + ((0.5 * (b * b)) * t_1);
	else
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(x / N[(y * a), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -6.2e-31], N[(N[(t$95$1 - N[(N[(x / y), $MachinePrecision] * N[(b / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(0.5 * N[(b * b), $MachinePrecision]), $MachinePrecision] * t$95$1), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 / a), $MachinePrecision] * N[(x / N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{x}{y \cdot a}\\
\mathbf{if}\;b \leq -6.2 \cdot 10^{-31}:\\
\;\;\;\;\left(t_1 - \frac{x}{y} \cdot \frac{b}{a}\right) + \left(0.5 \cdot \left(b \cdot b\right)\right) \cdot t_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -6.19999999999999999e-31

    1. Initial program 97.5%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Taylor expanded in t around 0 81.1%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative81.1%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg81.1%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg81.1%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified81.1%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in y around 0 68.6%

      \[\leadsto \color{blue}{\frac{x \cdot e^{-\left(b + \log a\right)}}{y}} \]
    6. Step-by-step derivation
      1. exp-neg68.6%

        \[\leadsto \frac{x \cdot \color{blue}{\frac{1}{e^{b + \log a}}}}{y} \]
      2. associate-*r/68.6%

        \[\leadsto \frac{\color{blue}{\frac{x \cdot 1}{e^{b + \log a}}}}{y} \]
      3. *-rgt-identity68.6%

        \[\leadsto \frac{\frac{\color{blue}{x}}{e^{b + \log a}}}{y} \]
      4. +-commutative68.6%

        \[\leadsto \frac{\frac{x}{e^{\color{blue}{\log a + b}}}}{y} \]
      5. exp-sum68.6%

        \[\leadsto \frac{\frac{x}{\color{blue}{e^{\log a} \cdot e^{b}}}}{y} \]
      6. rem-exp-log68.7%

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

      \[\leadsto \color{blue}{\frac{\frac{x}{a \cdot e^{b}}}{y}} \]
    8. Taylor expanded in x around 0 72.3%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Step-by-step derivation
      1. associate-/r*58.4%

        \[\leadsto \color{blue}{\frac{\frac{x}{a}}{y \cdot e^{b}}} \]
      2. associate-/r*53.2%

        \[\leadsto \color{blue}{\frac{\frac{\frac{x}{a}}{y}}{e^{b}}} \]
    10. Simplified53.2%

      \[\leadsto \color{blue}{\frac{\frac{\frac{x}{a}}{y}}{e^{b}}} \]
    11. Taylor expanded in b around 0 35.8%

      \[\leadsto \color{blue}{-1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) + \left(-1 \cdot \frac{b \cdot x}{a \cdot y} + \frac{x}{a \cdot y}\right)} \]
    12. Step-by-step derivation
      1. +-commutative35.8%

        \[\leadsto \color{blue}{\left(-1 \cdot \frac{b \cdot x}{a \cdot y} + \frac{x}{a \cdot y}\right) + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right)} \]
      2. +-commutative35.8%

        \[\leadsto \color{blue}{\left(\frac{x}{a \cdot y} + -1 \cdot \frac{b \cdot x}{a \cdot y}\right)} + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      3. mul-1-neg35.8%

        \[\leadsto \left(\frac{x}{a \cdot y} + \color{blue}{\left(-\frac{b \cdot x}{a \cdot y}\right)}\right) + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      4. unsub-neg35.8%

        \[\leadsto \color{blue}{\left(\frac{x}{a \cdot y} - \frac{b \cdot x}{a \cdot y}\right)} + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      5. times-frac33.1%

        \[\leadsto \left(\frac{x}{a \cdot y} - \color{blue}{\frac{b}{a} \cdot \frac{x}{y}}\right) + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      6. *-commutative33.1%

        \[\leadsto \left(\frac{x}{a \cdot y} - \frac{b}{a} \cdot \frac{x}{y}\right) + -1 \cdot \color{blue}{\left(\left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right) \cdot {b}^{2}\right)} \]
      7. associate-*r*33.1%

        \[\leadsto \left(\frac{x}{a \cdot y} - \frac{b}{a} \cdot \frac{x}{y}\right) + \color{blue}{\left(-1 \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \cdot {b}^{2}} \]
      8. distribute-rgt-out44.7%

        \[\leadsto \left(\frac{x}{a \cdot y} - \frac{b}{a} \cdot \frac{x}{y}\right) + \left(-1 \cdot \color{blue}{\left(\frac{x}{a \cdot y} \cdot \left(-1 + 0.5\right)\right)}\right) \cdot {b}^{2} \]
      9. metadata-eval44.7%

        \[\leadsto \left(\frac{x}{a \cdot y} - \frac{b}{a} \cdot \frac{x}{y}\right) + \left(-1 \cdot \left(\frac{x}{a \cdot y} \cdot \color{blue}{-0.5}\right)\right) \cdot {b}^{2} \]
      10. *-commutative44.7%

        \[\leadsto \left(\frac{x}{a \cdot y} - \frac{b}{a} \cdot \frac{x}{y}\right) + \left(-1 \cdot \color{blue}{\left(-0.5 \cdot \frac{x}{a \cdot y}\right)}\right) \cdot {b}^{2} \]
      11. associate-*r*44.7%

        \[\leadsto \left(\frac{x}{a \cdot y} - \frac{b}{a} \cdot \frac{x}{y}\right) + \color{blue}{\left(\left(-1 \cdot -0.5\right) \cdot \frac{x}{a \cdot y}\right)} \cdot {b}^{2} \]
      12. metadata-eval44.7%

        \[\leadsto \left(\frac{x}{a \cdot y} - \frac{b}{a} \cdot \frac{x}{y}\right) + \left(\color{blue}{0.5} \cdot \frac{x}{a \cdot y}\right) \cdot {b}^{2} \]
    13. Simplified44.7%

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

    if -6.19999999999999999e-31 < b

    1. Initial program 97.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/86.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum72.8%

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

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow73.7%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg73.7%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval73.7%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified68.0%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 64.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative64.9%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative64.9%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac62.0%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow62.9%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg62.9%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval62.9%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified62.9%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 51.7%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 36.0%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Step-by-step derivation
      1. *-un-lft-identity36.0%

        \[\leadsto \frac{\color{blue}{1 \cdot x}}{a \cdot y + a \cdot \left(b \cdot y\right)} \]
      2. distribute-lft-out37.2%

        \[\leadsto \frac{1 \cdot x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      3. times-frac39.5%

        \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{y + b \cdot y}} \]
      4. distribute-rgt1-in39.5%

        \[\leadsto \frac{1}{a} \cdot \frac{x}{\color{blue}{\left(b + 1\right) \cdot y}} \]
    10. Applied egg-rr39.5%

      \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{\left(b + 1\right) \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification41.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -6.2 \cdot 10^{-31}:\\ \;\;\;\;\left(\frac{x}{y \cdot a} - \frac{x}{y} \cdot \frac{b}{a}\right) + \left(0.5 \cdot \left(b \cdot b\right)\right) \cdot \frac{x}{y \cdot a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \]

Alternative 12: 41.5% accurate, 11.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{\frac{x}{a}}{y}\\ \mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\ \;\;\;\;\left(t_1 - \frac{x}{a} \cdot \frac{b}{y}\right) + t_1 \cdot \left(0.5 \cdot \left(b \cdot b\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (let* ((t_1 (/ (/ x a) y)))
   (if (<= b -3.2e+24)
     (+ (- t_1 (* (/ x a) (/ b y))) (* t_1 (* 0.5 (* b b))))
     (* (/ 1.0 a) (/ x (* y (+ 1.0 b)))))))
double code(double x, double y, double z, double t, double a, double b) {
	double t_1 = (x / a) / y;
	double tmp;
	if (b <= -3.2e+24) {
		tmp = (t_1 - ((x / a) * (b / y))) + (t_1 * (0.5 * (b * b)));
	} else {
		tmp = (1.0 / a) * (x / (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) :: t_1
    real(8) :: tmp
    t_1 = (x / a) / y
    if (b <= (-3.2d+24)) then
        tmp = (t_1 - ((x / a) * (b / y))) + (t_1 * (0.5d0 * (b * b)))
    else
        tmp = (1.0d0 / a) * (x / (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 t_1 = (x / a) / y;
	double tmp;
	if (b <= -3.2e+24) {
		tmp = (t_1 - ((x / a) * (b / y))) + (t_1 * (0.5 * (b * b)));
	} else {
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	t_1 = (x / a) / y
	tmp = 0
	if b <= -3.2e+24:
		tmp = (t_1 - ((x / a) * (b / y))) + (t_1 * (0.5 * (b * b)))
	else:
		tmp = (1.0 / a) * (x / (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	t_1 = Float64(Float64(x / a) / y)
	tmp = 0.0
	if (b <= -3.2e+24)
		tmp = Float64(Float64(t_1 - Float64(Float64(x / a) * Float64(b / y))) + Float64(t_1 * Float64(0.5 * Float64(b * b))));
	else
		tmp = Float64(Float64(1.0 / a) * Float64(x / Float64(y * Float64(1.0 + b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	t_1 = (x / a) / y;
	tmp = 0.0;
	if (b <= -3.2e+24)
		tmp = (t_1 - ((x / a) * (b / y))) + (t_1 * (0.5 * (b * b)));
	else
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(x / a), $MachinePrecision] / y), $MachinePrecision]}, If[LessEqual[b, -3.2e+24], N[(N[(t$95$1 - N[(N[(x / a), $MachinePrecision] * N[(b / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(t$95$1 * N[(0.5 * N[(b * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 / a), $MachinePrecision] * N[(x / N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{\frac{x}{a}}{y}\\
\mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\
\;\;\;\;\left(t_1 - \frac{x}{a} \cdot \frac{b}{y}\right) + t_1 \cdot \left(0.5 \cdot \left(b \cdot b\right)\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -3.1999999999999997e24

    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/83.6%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative83.6%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative83.6%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+83.6%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum65.6%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative65.6%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow65.6%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg65.6%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval65.6%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff47.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative47.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow47.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified47.5%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 60.7%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative60.7%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative60.7%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac55.8%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow55.8%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg55.8%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval55.8%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified55.8%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 79.0%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 37.3%

      \[\leadsto \color{blue}{-1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) + \left(-1 \cdot \frac{b \cdot x}{a \cdot y} + \frac{x}{a \cdot y}\right)} \]
    9. Step-by-step derivation
      1. +-commutative37.3%

        \[\leadsto \color{blue}{\left(-1 \cdot \frac{b \cdot x}{a \cdot y} + \frac{x}{a \cdot y}\right) + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right)} \]
      2. +-commutative37.3%

        \[\leadsto \color{blue}{\left(\frac{x}{a \cdot y} + -1 \cdot \frac{b \cdot x}{a \cdot y}\right)} + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      3. mul-1-neg37.3%

        \[\leadsto \left(\frac{x}{a \cdot y} + \color{blue}{\left(-\frac{b \cdot x}{a \cdot y}\right)}\right) + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      4. unsub-neg37.3%

        \[\leadsto \color{blue}{\left(\frac{x}{a \cdot y} - \frac{b \cdot x}{a \cdot y}\right)} + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      5. associate-/r*37.3%

        \[\leadsto \left(\color{blue}{\frac{\frac{x}{a}}{y}} - \frac{b \cdot x}{a \cdot y}\right) + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      6. *-commutative37.3%

        \[\leadsto \left(\frac{\frac{x}{a}}{y} - \frac{\color{blue}{x \cdot b}}{a \cdot y}\right) + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      7. times-frac35.6%

        \[\leadsto \left(\frac{\frac{x}{a}}{y} - \color{blue}{\frac{x}{a} \cdot \frac{b}{y}}\right) + -1 \cdot \left({b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \]
      8. mul-1-neg35.6%

        \[\leadsto \left(\frac{\frac{x}{a}}{y} - \frac{x}{a} \cdot \frac{b}{y}\right) + \color{blue}{\left(-{b}^{2} \cdot \left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right)} \]
      9. *-commutative35.6%

        \[\leadsto \left(\frac{\frac{x}{a}}{y} - \frac{x}{a} \cdot \frac{b}{y}\right) + \left(-\color{blue}{\left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right) \cdot {b}^{2}}\right) \]
      10. distribute-lft-neg-in35.6%

        \[\leadsto \left(\frac{\frac{x}{a}}{y} - \frac{x}{a} \cdot \frac{b}{y}\right) + \color{blue}{\left(-\left(-1 \cdot \frac{x}{a \cdot y} + 0.5 \cdot \frac{x}{a \cdot y}\right)\right) \cdot {b}^{2}} \]
    10. Simplified48.7%

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

    if -3.1999999999999997e24 < b

    1. Initial program 96.6%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/86.8%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.8%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.8%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.8%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum74.5%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative74.5%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow75.4%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg75.4%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval75.4%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified69.3%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 65.4%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative65.4%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative65.4%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac63.1%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow64.1%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg64.1%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval64.1%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified64.1%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 51.4%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 35.5%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Step-by-step derivation
      1. *-un-lft-identity35.5%

        \[\leadsto \frac{\color{blue}{1 \cdot x}}{a \cdot y + a \cdot \left(b \cdot y\right)} \]
      2. distribute-lft-out37.1%

        \[\leadsto \frac{1 \cdot x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      3. times-frac39.2%

        \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{y + b \cdot y}} \]
      4. distribute-rgt1-in39.2%

        \[\leadsto \frac{1}{a} \cdot \frac{x}{\color{blue}{\left(b + 1\right) \cdot y}} \]
    10. Applied egg-rr39.2%

      \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{\left(b + 1\right) \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification41.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\ \;\;\;\;\left(\frac{\frac{x}{a}}{y} - \frac{x}{a} \cdot \frac{b}{y}\right) + \frac{\frac{x}{a}}{y} \cdot \left(0.5 \cdot \left(b \cdot b\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \]

Alternative 13: 39.0% accurate, 20.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -6.8 \cdot 10^{-29}:\\ \;\;\;\;\frac{x}{y \cdot a} - \frac{x}{y} \cdot \frac{b}{a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -6.8e-29)
   (- (/ x (* y a)) (* (/ x y) (/ b a)))
   (* (/ 1.0 a) (/ x (* y (+ 1.0 b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -6.8e-29) {
		tmp = (x / (y * a)) - ((x / y) * (b / a));
	} else {
		tmp = (1.0 / a) * (x / (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 <= (-6.8d-29)) then
        tmp = (x / (y * a)) - ((x / y) * (b / a))
    else
        tmp = (1.0d0 / a) * (x / (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 <= -6.8e-29) {
		tmp = (x / (y * a)) - ((x / y) * (b / a));
	} else {
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -6.8e-29:
		tmp = (x / (y * a)) - ((x / y) * (b / a))
	else:
		tmp = (1.0 / a) * (x / (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -6.8e-29)
		tmp = Float64(Float64(x / Float64(y * a)) - Float64(Float64(x / y) * Float64(b / a)));
	else
		tmp = Float64(Float64(1.0 / a) * Float64(x / 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 <= -6.8e-29)
		tmp = (x / (y * a)) - ((x / y) * (b / a));
	else
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -6.8e-29], N[(N[(x / N[(y * a), $MachinePrecision]), $MachinePrecision] - N[(N[(x / y), $MachinePrecision] * N[(b / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 / a), $MachinePrecision] * N[(x / N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -6.8 \cdot 10^{-29}:\\
\;\;\;\;\frac{x}{y \cdot a} - \frac{x}{y} \cdot \frac{b}{a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -6.79999999999999945e-29

    1. Initial program 97.5%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Taylor expanded in t around 0 81.1%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative81.1%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg81.1%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg81.1%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified81.1%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in y around 0 68.6%

      \[\leadsto \color{blue}{\frac{x \cdot e^{-\left(b + \log a\right)}}{y}} \]
    6. Step-by-step derivation
      1. exp-neg68.6%

        \[\leadsto \frac{x \cdot \color{blue}{\frac{1}{e^{b + \log a}}}}{y} \]
      2. associate-*r/68.6%

        \[\leadsto \frac{\color{blue}{\frac{x \cdot 1}{e^{b + \log a}}}}{y} \]
      3. *-rgt-identity68.6%

        \[\leadsto \frac{\frac{\color{blue}{x}}{e^{b + \log a}}}{y} \]
      4. +-commutative68.6%

        \[\leadsto \frac{\frac{x}{e^{\color{blue}{\log a + b}}}}{y} \]
      5. exp-sum68.6%

        \[\leadsto \frac{\frac{x}{\color{blue}{e^{\log a} \cdot e^{b}}}}{y} \]
      6. rem-exp-log68.7%

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

      \[\leadsto \color{blue}{\frac{\frac{x}{a \cdot e^{b}}}{y}} \]
    8. Taylor expanded in x around 0 72.3%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    9. Step-by-step derivation
      1. associate-/r*58.4%

        \[\leadsto \color{blue}{\frac{\frac{x}{a}}{y \cdot e^{b}}} \]
      2. associate-/r*53.2%

        \[\leadsto \color{blue}{\frac{\frac{\frac{x}{a}}{y}}{e^{b}}} \]
    10. Simplified53.2%

      \[\leadsto \color{blue}{\frac{\frac{\frac{x}{a}}{y}}{e^{b}}} \]
    11. Taylor expanded in b around 0 40.2%

      \[\leadsto \color{blue}{-1 \cdot \frac{b \cdot x}{a \cdot y} + \frac{x}{a \cdot y}} \]
    12. Step-by-step derivation
      1. +-commutative40.2%

        \[\leadsto \color{blue}{\frac{x}{a \cdot y} + -1 \cdot \frac{b \cdot x}{a \cdot y}} \]
      2. mul-1-neg40.2%

        \[\leadsto \frac{x}{a \cdot y} + \color{blue}{\left(-\frac{b \cdot x}{a \cdot y}\right)} \]
      3. unsub-neg40.2%

        \[\leadsto \color{blue}{\frac{x}{a \cdot y} - \frac{b \cdot x}{a \cdot y}} \]
      4. times-frac35.2%

        \[\leadsto \frac{x}{a \cdot y} - \color{blue}{\frac{b}{a} \cdot \frac{x}{y}} \]
    13. Simplified35.2%

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

    if -6.79999999999999945e-29 < b

    1. Initial program 97.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/86.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum72.8%

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

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow73.7%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg73.7%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval73.7%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified68.0%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 64.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative64.9%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative64.9%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac62.0%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow62.9%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg62.9%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval62.9%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified62.9%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 51.7%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 36.0%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Step-by-step derivation
      1. *-un-lft-identity36.0%

        \[\leadsto \frac{\color{blue}{1 \cdot x}}{a \cdot y + a \cdot \left(b \cdot y\right)} \]
      2. distribute-lft-out37.2%

        \[\leadsto \frac{1 \cdot x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      3. times-frac39.5%

        \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{y + b \cdot y}} \]
      4. distribute-rgt1-in39.5%

        \[\leadsto \frac{1}{a} \cdot \frac{x}{\color{blue}{\left(b + 1\right) \cdot y}} \]
    10. Applied egg-rr39.5%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -6.8 \cdot 10^{-29}:\\ \;\;\;\;\frac{x}{y \cdot a} - \frac{x}{y} \cdot \frac{b}{a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \]

Alternative 14: 38.7% accurate, 20.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\ \;\;\;\;\frac{\frac{x}{a}}{y} - \frac{x}{a} \cdot \frac{b}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -3.2e+24)
   (- (/ (/ x a) y) (* (/ x a) (/ b y)))
   (* (/ 1.0 a) (/ x (* y (+ 1.0 b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -3.2e+24) {
		tmp = ((x / a) / y) - ((x / a) * (b / y));
	} else {
		tmp = (1.0 / a) * (x / (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 <= (-3.2d+24)) then
        tmp = ((x / a) / y) - ((x / a) * (b / y))
    else
        tmp = (1.0d0 / a) * (x / (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 <= -3.2e+24) {
		tmp = ((x / a) / y) - ((x / a) * (b / y));
	} else {
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -3.2e+24:
		tmp = ((x / a) / y) - ((x / a) * (b / y))
	else:
		tmp = (1.0 / a) * (x / (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -3.2e+24)
		tmp = Float64(Float64(Float64(x / a) / y) - Float64(Float64(x / a) * Float64(b / y)));
	else
		tmp = Float64(Float64(1.0 / a) * Float64(x / 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 <= -3.2e+24)
		tmp = ((x / a) / y) - ((x / a) * (b / y));
	else
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -3.2e+24], N[(N[(N[(x / a), $MachinePrecision] / y), $MachinePrecision] - N[(N[(x / a), $MachinePrecision] * N[(b / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 / a), $MachinePrecision] * N[(x / N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\
\;\;\;\;\frac{\frac{x}{a}}{y} - \frac{x}{a} \cdot \frac{b}{y}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -3.1999999999999997e24

    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/83.6%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative83.6%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative83.6%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+83.6%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum65.6%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative65.6%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow65.6%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg65.6%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval65.6%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff47.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative47.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow47.5%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified47.5%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 60.7%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative60.7%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative60.7%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac55.8%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow55.8%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg55.8%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval55.8%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified55.8%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 79.0%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 41.2%

      \[\leadsto \color{blue}{-1 \cdot \frac{b \cdot x}{a \cdot y} + \frac{x}{a \cdot y}} \]
    9. Step-by-step derivation
      1. +-commutative41.2%

        \[\leadsto \color{blue}{\frac{x}{a \cdot y} + -1 \cdot \frac{b \cdot x}{a \cdot y}} \]
      2. mul-1-neg41.2%

        \[\leadsto \frac{x}{a \cdot y} + \color{blue}{\left(-\frac{b \cdot x}{a \cdot y}\right)} \]
      3. unsub-neg41.2%

        \[\leadsto \color{blue}{\frac{x}{a \cdot y} - \frac{b \cdot x}{a \cdot y}} \]
      4. associate-/r*41.2%

        \[\leadsto \color{blue}{\frac{\frac{x}{a}}{y}} - \frac{b \cdot x}{a \cdot y} \]
      5. *-commutative41.2%

        \[\leadsto \frac{\frac{x}{a}}{y} - \frac{\color{blue}{x \cdot b}}{a \cdot y} \]
      6. times-frac39.7%

        \[\leadsto \frac{\frac{x}{a}}{y} - \color{blue}{\frac{x}{a} \cdot \frac{b}{y}} \]
    10. Simplified39.7%

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

    if -3.1999999999999997e24 < b

    1. Initial program 96.6%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/86.8%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.8%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.8%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.8%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum74.5%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative74.5%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow75.4%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg75.4%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval75.4%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified69.3%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 65.4%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative65.4%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative65.4%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac63.1%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow64.1%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg64.1%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval64.1%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified64.1%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 51.4%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 35.5%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Step-by-step derivation
      1. *-un-lft-identity35.5%

        \[\leadsto \frac{\color{blue}{1 \cdot x}}{a \cdot y + a \cdot \left(b \cdot y\right)} \]
      2. distribute-lft-out37.1%

        \[\leadsto \frac{1 \cdot x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      3. times-frac39.2%

        \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{y + b \cdot y}} \]
      4. distribute-rgt1-in39.2%

        \[\leadsto \frac{1}{a} \cdot \frac{x}{\color{blue}{\left(b + 1\right) \cdot y}} \]
    10. Applied egg-rr39.2%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\ \;\;\;\;\frac{\frac{x}{a}}{y} - \frac{x}{a} \cdot \frac{b}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \]

Alternative 15: 39.0% accurate, 20.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -8.5 \cdot 10^{-29}:\\ \;\;\;\;\frac{x}{y \cdot a} - \frac{x \cdot b}{y \cdot a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -8.5e-29)
   (- (/ x (* y a)) (/ (* x b) (* y a)))
   (* (/ 1.0 a) (/ x (* y (+ 1.0 b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -8.5e-29) {
		tmp = (x / (y * a)) - ((x * b) / (y * a));
	} else {
		tmp = (1.0 / a) * (x / (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 <= (-8.5d-29)) then
        tmp = (x / (y * a)) - ((x * b) / (y * a))
    else
        tmp = (1.0d0 / a) * (x / (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 <= -8.5e-29) {
		tmp = (x / (y * a)) - ((x * b) / (y * a));
	} else {
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -8.5e-29:
		tmp = (x / (y * a)) - ((x * b) / (y * a))
	else:
		tmp = (1.0 / a) * (x / (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -8.5e-29)
		tmp = Float64(Float64(x / Float64(y * a)) - Float64(Float64(x * b) / Float64(y * a)));
	else
		tmp = Float64(Float64(1.0 / a) * Float64(x / 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 <= -8.5e-29)
		tmp = (x / (y * a)) - ((x * b) / (y * a));
	else
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -8.5e-29], N[(N[(x / N[(y * a), $MachinePrecision]), $MachinePrecision] - N[(N[(x * b), $MachinePrecision] / N[(y * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 / a), $MachinePrecision] * N[(x / N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -8.5 \cdot 10^{-29}:\\
\;\;\;\;\frac{x}{y \cdot a} - \frac{x \cdot b}{y \cdot a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -8.5000000000000001e-29

    1. Initial program 97.5%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/85.5%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative85.5%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative85.5%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+85.5%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum71.4%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative71.4%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow71.7%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg71.7%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval71.7%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff55.1%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative55.1%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow55.1%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified55.1%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 63.0%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative63.0%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative63.0%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac60.0%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow60.4%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg60.4%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval60.4%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified60.4%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 72.3%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 40.2%

      \[\leadsto \color{blue}{-1 \cdot \frac{b \cdot x}{a \cdot y} + \frac{x}{a \cdot y}} \]

    if -8.5000000000000001e-29 < b

    1. Initial program 97.4%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/86.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum72.8%

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

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow73.7%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg73.7%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval73.7%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow68.0%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified68.0%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 64.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative64.9%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative64.9%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac62.0%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow62.9%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg62.9%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval62.9%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified62.9%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 51.7%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 36.0%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Step-by-step derivation
      1. *-un-lft-identity36.0%

        \[\leadsto \frac{\color{blue}{1 \cdot x}}{a \cdot y + a \cdot \left(b \cdot y\right)} \]
      2. distribute-lft-out37.2%

        \[\leadsto \frac{1 \cdot x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      3. times-frac39.5%

        \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{y + b \cdot y}} \]
      4. distribute-rgt1-in39.5%

        \[\leadsto \frac{1}{a} \cdot \frac{x}{\color{blue}{\left(b + 1\right) \cdot y}} \]
    10. Applied egg-rr39.5%

      \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{\left(b + 1\right) \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification39.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -8.5 \cdot 10^{-29}:\\ \;\;\;\;\frac{x}{y \cdot a} - \frac{x \cdot b}{y \cdot a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \]

Alternative 16: 35.3% accurate, 24.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\ \;\;\;\;\frac{\frac{x}{y}}{a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b -3.2e+24) (/ (/ x y) a) (* (/ 1.0 a) (/ x (* y (+ 1.0 b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= -3.2e+24) {
		tmp = (x / y) / a;
	} else {
		tmp = (1.0 / a) * (x / (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 <= (-3.2d+24)) then
        tmp = (x / y) / a
    else
        tmp = (1.0d0 / a) * (x / (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 <= -3.2e+24) {
		tmp = (x / y) / a;
	} else {
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= -3.2e+24:
		tmp = (x / y) / a
	else:
		tmp = (1.0 / a) * (x / (y * (1.0 + b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= -3.2e+24)
		tmp = Float64(Float64(x / y) / a);
	else
		tmp = Float64(Float64(1.0 / a) * Float64(x / 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 <= -3.2e+24)
		tmp = (x / y) / a;
	else
		tmp = (1.0 / a) * (x / (y * (1.0 + b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, -3.2e+24], N[(N[(x / y), $MachinePrecision] / a), $MachinePrecision], N[(N[(1.0 / a), $MachinePrecision] * N[(x / N[(y * N[(1.0 + b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\
\;\;\;\;\frac{\frac{x}{y}}{a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -3.1999999999999997e24

    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. Taylor expanded in t around 0 88.7%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative88.7%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg88.7%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg88.7%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified88.7%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in b around 0 44.2%

      \[\leadsto \color{blue}{\frac{x \cdot e^{y \cdot \log z - \log a}}{y}} \]
    6. Step-by-step derivation
      1. *-commutative44.2%

        \[\leadsto \frac{\color{blue}{e^{y \cdot \log z - \log a} \cdot x}}{y} \]
      2. exp-diff44.2%

        \[\leadsto \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}} \cdot x}{y} \]
      3. *-commutative44.2%

        \[\leadsto \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}} \cdot x}{y} \]
      4. exp-to-pow44.2%

        \[\leadsto \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}} \cdot x}{y} \]
      5. rem-exp-log44.2%

        \[\leadsto \frac{\frac{{z}^{y}}{\color{blue}{a}} \cdot x}{y} \]
      6. associate-*l/44.2%

        \[\leadsto \frac{\color{blue}{\frac{{z}^{y} \cdot x}{a}}}{y} \]
      7. *-commutative44.2%

        \[\leadsto \frac{\frac{\color{blue}{x \cdot {z}^{y}}}{a}}{y} \]
      8. associate-/r*39.3%

        \[\leadsto \color{blue}{\frac{x \cdot {z}^{y}}{a \cdot y}} \]
      9. *-commutative39.3%

        \[\leadsto \frac{\color{blue}{{z}^{y} \cdot x}}{a \cdot y} \]
      10. times-frac42.1%

        \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    7. Simplified42.1%

      \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    8. Taylor expanded in y around 0 29.8%

      \[\leadsto \color{blue}{\frac{1}{a}} \cdot \frac{x}{y} \]
    9. Step-by-step derivation
      1. associate-*l/29.8%

        \[\leadsto \color{blue}{\frac{1 \cdot \frac{x}{y}}{a}} \]
      2. *-un-lft-identity29.8%

        \[\leadsto \frac{\color{blue}{\frac{x}{y}}}{a} \]
    10. Applied egg-rr29.8%

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

    if -3.1999999999999997e24 < b

    1. Initial program 96.6%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Step-by-step derivation
      1. associate-*l/86.8%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.8%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.8%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.8%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum74.5%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative74.5%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow75.4%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg75.4%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval75.4%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow69.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified69.3%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 65.4%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative65.4%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative65.4%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac63.1%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow64.1%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg64.1%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval64.1%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified64.1%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 51.4%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 35.5%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Step-by-step derivation
      1. *-un-lft-identity35.5%

        \[\leadsto \frac{\color{blue}{1 \cdot x}}{a \cdot y + a \cdot \left(b \cdot y\right)} \]
      2. distribute-lft-out37.1%

        \[\leadsto \frac{1 \cdot x}{\color{blue}{a \cdot \left(y + b \cdot y\right)}} \]
      3. times-frac39.2%

        \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{y + b \cdot y}} \]
      4. distribute-rgt1-in39.2%

        \[\leadsto \frac{1}{a} \cdot \frac{x}{\color{blue}{\left(b + 1\right) \cdot y}} \]
    10. Applied egg-rr39.2%

      \[\leadsto \color{blue}{\frac{1}{a} \cdot \frac{x}{\left(b + 1\right) \cdot y}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification37.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -3.2 \cdot 10^{+24}:\\ \;\;\;\;\frac{\frac{x}{y}}{a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a} \cdot \frac{x}{y \cdot \left(1 + b\right)}\\ \end{array} \]

Alternative 17: 36.1% accurate, 28.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq 1.8 \cdot 10^{+54}:\\ \;\;\;\;\frac{\frac{1}{a}}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y \cdot \left(a + a \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b 1.8e+54) (/ (/ 1.0 a) (/ y x)) (/ x (* y (+ a (* a b))))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= 1.8e+54) {
		tmp = (1.0 / a) / (y / x);
	} else {
		tmp = x / (y * (a + (a * 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 <= 1.8d+54) then
        tmp = (1.0d0 / a) / (y / x)
    else
        tmp = x / (y * (a + (a * 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 <= 1.8e+54) {
		tmp = (1.0 / a) / (y / x);
	} else {
		tmp = x / (y * (a + (a * b)));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= 1.8e+54:
		tmp = (1.0 / a) / (y / x)
	else:
		tmp = x / (y * (a + (a * b)))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= 1.8e+54)
		tmp = Float64(Float64(1.0 / a) / Float64(y / x));
	else
		tmp = Float64(x / Float64(y * Float64(a + Float64(a * b))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= 1.8e+54)
		tmp = (1.0 / a) / (y / x);
	else
		tmp = x / (y * (a + (a * b)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, 1.8e+54], N[(N[(1.0 / a), $MachinePrecision] / N[(y / x), $MachinePrecision]), $MachinePrecision], N[(x / N[(y * N[(a + N[(a * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq 1.8 \cdot 10^{+54}:\\
\;\;\;\;\frac{\frac{1}{a}}{\frac{y}{x}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < 1.8000000000000001e54

    1. Initial program 96.7%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Taylor expanded in t around 0 78.4%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative78.4%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg78.4%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg78.4%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified78.4%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in b around 0 63.2%

      \[\leadsto \color{blue}{\frac{x \cdot e^{y \cdot \log z - \log a}}{y}} \]
    6. Step-by-step derivation
      1. *-commutative63.2%

        \[\leadsto \frac{\color{blue}{e^{y \cdot \log z - \log a} \cdot x}}{y} \]
      2. exp-diff63.2%

        \[\leadsto \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}} \cdot x}{y} \]
      3. *-commutative63.2%

        \[\leadsto \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}} \cdot x}{y} \]
      4. exp-to-pow63.2%

        \[\leadsto \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}} \cdot x}{y} \]
      5. rem-exp-log63.9%

        \[\leadsto \frac{\frac{{z}^{y}}{\color{blue}{a}} \cdot x}{y} \]
      6. associate-*l/64.0%

        \[\leadsto \frac{\color{blue}{\frac{{z}^{y} \cdot x}{a}}}{y} \]
      7. *-commutative64.0%

        \[\leadsto \frac{\frac{\color{blue}{x \cdot {z}^{y}}}{a}}{y} \]
      8. associate-/r*57.8%

        \[\leadsto \color{blue}{\frac{x \cdot {z}^{y}}{a \cdot y}} \]
      9. *-commutative57.8%

        \[\leadsto \frac{\color{blue}{{z}^{y} \cdot x}}{a \cdot y} \]
      10. times-frac61.7%

        \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    7. Simplified61.7%

      \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    8. Taylor expanded in y around 0 35.0%

      \[\leadsto \color{blue}{\frac{1}{a}} \cdot \frac{x}{y} \]
    9. Step-by-step derivation
      1. clear-num35.5%

        \[\leadsto \frac{1}{a} \cdot \color{blue}{\frac{1}{\frac{y}{x}}} \]
      2. un-div-inv35.5%

        \[\leadsto \color{blue}{\frac{\frac{1}{a}}{\frac{y}{x}}} \]
    10. Applied egg-rr35.5%

      \[\leadsto \color{blue}{\frac{\frac{1}{a}}{\frac{y}{x}}} \]

    if 1.8000000000000001e54 < 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/86.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum63.8%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative63.8%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow63.8%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg63.8%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval63.8%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified48.3%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 63.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative63.9%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative63.9%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac62.1%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow62.1%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg62.1%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval62.1%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified62.1%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 81.3%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 40.1%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Step-by-step derivation
      1. +-commutative40.1%

        \[\leadsto \frac{x}{\color{blue}{a \cdot \left(b \cdot y\right) + a \cdot y}} \]
      2. associate-*r*41.8%

        \[\leadsto \frac{x}{\color{blue}{\left(a \cdot b\right) \cdot y} + a \cdot y} \]
      3. distribute-rgt-out41.8%

        \[\leadsto \frac{x}{\color{blue}{y \cdot \left(a \cdot b + a\right)}} \]
    10. Applied egg-rr41.8%

      \[\leadsto \frac{x}{\color{blue}{y \cdot \left(a \cdot b + a\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification36.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq 1.8 \cdot 10^{+54}:\\ \;\;\;\;\frac{\frac{1}{a}}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{y \cdot \left(a + a \cdot b\right)}\\ \end{array} \]

Alternative 18: 32.0% accurate, 34.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -5.6 \cdot 10^{+91}:\\ \;\;\;\;\frac{x}{y \cdot a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a \cdot \frac{y}{x}}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -5.6e+91) (/ x (* y a)) (/ 1.0 (* a (/ y x)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -5.6e+91) {
		tmp = x / (y * a);
	} else {
		tmp = 1.0 / (a * (y / x));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (t <= (-5.6d+91)) then
        tmp = x / (y * a)
    else
        tmp = 1.0d0 / (a * (y / x))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -5.6e+91) {
		tmp = x / (y * a);
	} else {
		tmp = 1.0 / (a * (y / x));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -5.6e+91:
		tmp = x / (y * a)
	else:
		tmp = 1.0 / (a * (y / x))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -5.6e+91)
		tmp = Float64(x / Float64(y * a));
	else
		tmp = Float64(1.0 / Float64(a * Float64(y / x)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -5.6e+91)
		tmp = x / (y * a);
	else
		tmp = 1.0 / (a * (y / x));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -5.6e+91], N[(x / N[(y * a), $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(a * N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -5.6 \cdot 10^{+91}:\\
\;\;\;\;\frac{x}{y \cdot a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -5.5999999999999997e91

    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/73.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative73.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative73.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+73.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum46.3%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative46.3%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow46.3%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg46.3%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval46.3%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff36.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative36.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow36.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified36.6%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in b around 0 63.5%

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*63.5%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      3. exp-to-pow63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative63.5%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum90.4%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative63.5%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      8. exp-to-pow63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      10. exp-to-pow63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{a}^{\left(t - 1\right)}} \cdot {z}^{y}}} \]
      11. sub-neg63.5%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot {z}^{y}}} \]
      12. metadata-eval63.5%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\left(t + \color{blue}{-1}\right)} \cdot {z}^{y}}} \]
    6. Simplified63.5%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
    7. Taylor expanded in t around 0 47.4%

      \[\leadsto \frac{x}{\color{blue}{\frac{a \cdot y}{{z}^{y}}}} \]
    8. Step-by-step derivation
      1. associate-/l*52.4%

        \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
    9. Simplified52.4%

      \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
    10. Taylor expanded in y around 0 29.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot y}} \]
    11. Step-by-step derivation
      1. *-commutative29.1%

        \[\leadsto \frac{x}{\color{blue}{y \cdot a}} \]
    12. Simplified29.1%

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

    if -5.5999999999999997e91 < t

    1. Initial program 96.9%

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

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative83.3%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg83.3%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg83.3%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified83.3%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in b around 0 60.1%

      \[\leadsto \color{blue}{\frac{x \cdot e^{y \cdot \log z - \log a}}{y}} \]
    6. Step-by-step derivation
      1. *-commutative60.1%

        \[\leadsto \frac{\color{blue}{e^{y \cdot \log z - \log a} \cdot x}}{y} \]
      2. exp-diff60.1%

        \[\leadsto \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}} \cdot x}{y} \]
      3. *-commutative60.1%

        \[\leadsto \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}} \cdot x}{y} \]
      4. exp-to-pow60.1%

        \[\leadsto \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}} \cdot x}{y} \]
      5. rem-exp-log60.8%

        \[\leadsto \frac{\frac{{z}^{y}}{\color{blue}{a}} \cdot x}{y} \]
      6. associate-*l/60.9%

        \[\leadsto \frac{\color{blue}{\frac{{z}^{y} \cdot x}{a}}}{y} \]
      7. *-commutative60.9%

        \[\leadsto \frac{\frac{\color{blue}{x \cdot {z}^{y}}}{a}}{y} \]
      8. associate-/r*53.9%

        \[\leadsto \color{blue}{\frac{x \cdot {z}^{y}}{a \cdot y}} \]
      9. *-commutative53.9%

        \[\leadsto \frac{\color{blue}{{z}^{y} \cdot x}}{a \cdot y} \]
      10. times-frac58.7%

        \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    7. Simplified58.7%

      \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    8. Taylor expanded in y around 0 32.9%

      \[\leadsto \color{blue}{\frac{1}{a}} \cdot \frac{x}{y} \]
    9. Step-by-step derivation
      1. clear-num33.8%

        \[\leadsto \frac{1}{a} \cdot \color{blue}{\frac{1}{\frac{y}{x}}} \]
      2. frac-times33.7%

        \[\leadsto \color{blue}{\frac{1 \cdot 1}{a \cdot \frac{y}{x}}} \]
      3. metadata-eval33.7%

        \[\leadsto \frac{\color{blue}{1}}{a \cdot \frac{y}{x}} \]
    10. Applied egg-rr33.7%

      \[\leadsto \color{blue}{\frac{1}{a \cdot \frac{y}{x}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification32.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -5.6 \cdot 10^{+91}:\\ \;\;\;\;\frac{x}{y \cdot a}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{a \cdot \frac{y}{x}}\\ \end{array} \]

Alternative 19: 35.7% accurate, 34.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq 4.2 \cdot 10^{+62}:\\ \;\;\;\;\frac{1}{a \cdot \frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b 4.2e+62) (/ 1.0 (* a (/ y x))) (/ x (* a (* y b)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= 4.2e+62) {
		tmp = 1.0 / (a * (y / x));
	} else {
		tmp = x / (a * (y * b));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= 4.2d+62) then
        tmp = 1.0d0 / (a * (y / x))
    else
        tmp = x / (a * (y * b))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= 4.2e+62) {
		tmp = 1.0 / (a * (y / x));
	} else {
		tmp = x / (a * (y * b));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= 4.2e+62:
		tmp = 1.0 / (a * (y / x))
	else:
		tmp = x / (a * (y * b))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= 4.2e+62)
		tmp = Float64(1.0 / Float64(a * Float64(y / x)));
	else
		tmp = Float64(x / Float64(a * Float64(y * b)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= 4.2e+62)
		tmp = 1.0 / (a * (y / x));
	else
		tmp = x / (a * (y * b));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, 4.2e+62], N[(1.0 / N[(a * N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq 4.2 \cdot 10^{+62}:\\
\;\;\;\;\frac{1}{a \cdot \frac{y}{x}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < 4.2e62

    1. Initial program 96.7%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Taylor expanded in t around 0 78.4%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative78.4%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg78.4%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg78.4%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified78.4%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in b around 0 63.2%

      \[\leadsto \color{blue}{\frac{x \cdot e^{y \cdot \log z - \log a}}{y}} \]
    6. Step-by-step derivation
      1. *-commutative63.2%

        \[\leadsto \frac{\color{blue}{e^{y \cdot \log z - \log a} \cdot x}}{y} \]
      2. exp-diff63.2%

        \[\leadsto \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}} \cdot x}{y} \]
      3. *-commutative63.2%

        \[\leadsto \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}} \cdot x}{y} \]
      4. exp-to-pow63.2%

        \[\leadsto \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}} \cdot x}{y} \]
      5. rem-exp-log63.9%

        \[\leadsto \frac{\frac{{z}^{y}}{\color{blue}{a}} \cdot x}{y} \]
      6. associate-*l/64.0%

        \[\leadsto \frac{\color{blue}{\frac{{z}^{y} \cdot x}{a}}}{y} \]
      7. *-commutative64.0%

        \[\leadsto \frac{\frac{\color{blue}{x \cdot {z}^{y}}}{a}}{y} \]
      8. associate-/r*57.8%

        \[\leadsto \color{blue}{\frac{x \cdot {z}^{y}}{a \cdot y}} \]
      9. *-commutative57.8%

        \[\leadsto \frac{\color{blue}{{z}^{y} \cdot x}}{a \cdot y} \]
      10. times-frac61.7%

        \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    7. Simplified61.7%

      \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    8. Taylor expanded in y around 0 35.0%

      \[\leadsto \color{blue}{\frac{1}{a}} \cdot \frac{x}{y} \]
    9. Step-by-step derivation
      1. clear-num35.5%

        \[\leadsto \frac{1}{a} \cdot \color{blue}{\frac{1}{\frac{y}{x}}} \]
      2. frac-times35.4%

        \[\leadsto \color{blue}{\frac{1 \cdot 1}{a \cdot \frac{y}{x}}} \]
      3. metadata-eval35.4%

        \[\leadsto \frac{\color{blue}{1}}{a \cdot \frac{y}{x}} \]
    10. Applied egg-rr35.4%

      \[\leadsto \color{blue}{\frac{1}{a \cdot \frac{y}{x}}} \]

    if 4.2e62 < 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/86.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum63.8%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative63.8%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow63.8%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg63.8%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval63.8%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified48.3%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 63.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative63.9%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative63.9%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac62.1%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow62.1%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg62.1%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval62.1%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified62.1%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 81.3%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 40.1%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Taylor expanded in b around inf 40.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(b \cdot y\right)}} \]
    10. Step-by-step derivation
      1. *-commutative40.1%

        \[\leadsto \frac{x}{a \cdot \color{blue}{\left(y \cdot b\right)}} \]
    11. Simplified40.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot b\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification36.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq 4.2 \cdot 10^{+62}:\\ \;\;\;\;\frac{1}{a \cdot \frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot b\right)}\\ \end{array} \]

Alternative 20: 35.7% accurate, 34.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq 5.75 \cdot 10^{+51}:\\ \;\;\;\;\frac{\frac{1}{a}}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= b 5.75e+51) (/ (/ 1.0 a) (/ y x)) (/ x (* a (* y b)))))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= 5.75e+51) {
		tmp = (1.0 / a) / (y / x);
	} else {
		tmp = x / (a * (y * b));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8) :: tmp
    if (b <= 5.75d+51) then
        tmp = (1.0d0 / a) / (y / x)
    else
        tmp = x / (a * (y * b))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (b <= 5.75e+51) {
		tmp = (1.0 / a) / (y / x);
	} else {
		tmp = x / (a * (y * b));
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if b <= 5.75e+51:
		tmp = (1.0 / a) / (y / x)
	else:
		tmp = x / (a * (y * b))
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (b <= 5.75e+51)
		tmp = Float64(Float64(1.0 / a) / Float64(y / x));
	else
		tmp = Float64(x / Float64(a * Float64(y * b)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (b <= 5.75e+51)
		tmp = (1.0 / a) / (y / x);
	else
		tmp = x / (a * (y * b));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[b, 5.75e+51], N[(N[(1.0 / a), $MachinePrecision] / N[(y / x), $MachinePrecision]), $MachinePrecision], N[(x / N[(a * N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq 5.75 \cdot 10^{+51}:\\
\;\;\;\;\frac{\frac{1}{a}}{\frac{y}{x}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < 5.75e51

    1. Initial program 96.7%

      \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
    2. Taylor expanded in t around 0 78.4%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative78.4%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg78.4%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg78.4%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified78.4%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in b around 0 63.2%

      \[\leadsto \color{blue}{\frac{x \cdot e^{y \cdot \log z - \log a}}{y}} \]
    6. Step-by-step derivation
      1. *-commutative63.2%

        \[\leadsto \frac{\color{blue}{e^{y \cdot \log z - \log a} \cdot x}}{y} \]
      2. exp-diff63.2%

        \[\leadsto \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}} \cdot x}{y} \]
      3. *-commutative63.2%

        \[\leadsto \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}} \cdot x}{y} \]
      4. exp-to-pow63.2%

        \[\leadsto \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}} \cdot x}{y} \]
      5. rem-exp-log63.9%

        \[\leadsto \frac{\frac{{z}^{y}}{\color{blue}{a}} \cdot x}{y} \]
      6. associate-*l/64.0%

        \[\leadsto \frac{\color{blue}{\frac{{z}^{y} \cdot x}{a}}}{y} \]
      7. *-commutative64.0%

        \[\leadsto \frac{\frac{\color{blue}{x \cdot {z}^{y}}}{a}}{y} \]
      8. associate-/r*57.8%

        \[\leadsto \color{blue}{\frac{x \cdot {z}^{y}}{a \cdot y}} \]
      9. *-commutative57.8%

        \[\leadsto \frac{\color{blue}{{z}^{y} \cdot x}}{a \cdot y} \]
      10. times-frac61.7%

        \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    7. Simplified61.7%

      \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    8. Taylor expanded in y around 0 35.0%

      \[\leadsto \color{blue}{\frac{1}{a}} \cdot \frac{x}{y} \]
    9. Step-by-step derivation
      1. clear-num35.5%

        \[\leadsto \frac{1}{a} \cdot \color{blue}{\frac{1}{\frac{y}{x}}} \]
      2. un-div-inv35.5%

        \[\leadsto \color{blue}{\frac{\frac{1}{a}}{\frac{y}{x}}} \]
    10. Applied egg-rr35.5%

      \[\leadsto \color{blue}{\frac{\frac{1}{a}}{\frac{y}{x}}} \]

    if 5.75e51 < 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/86.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative86.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative86.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+86.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum63.8%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative63.8%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow63.8%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg63.8%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval63.8%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow48.3%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified48.3%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in y around 0 63.9%

      \[\leadsto \color{blue}{\frac{x \cdot e^{\log a \cdot \left(t - 1\right)}}{y \cdot e^{b}}} \]
    5. Step-by-step derivation
      1. *-commutative63.9%

        \[\leadsto \frac{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot x}}{y \cdot e^{b}} \]
      2. *-commutative63.9%

        \[\leadsto \frac{e^{\log a \cdot \left(t - 1\right)} \cdot x}{\color{blue}{e^{b} \cdot y}} \]
      3. times-frac62.1%

        \[\leadsto \color{blue}{\frac{e^{\log a \cdot \left(t - 1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
      4. exp-to-pow62.1%

        \[\leadsto \frac{\color{blue}{{a}^{\left(t - 1\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      5. sub-neg62.1%

        \[\leadsto \frac{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}}}{e^{b}} \cdot \frac{x}{y} \]
      6. metadata-eval62.1%

        \[\leadsto \frac{{a}^{\left(t + \color{blue}{-1}\right)}}{e^{b}} \cdot \frac{x}{y} \]
    6. Simplified62.1%

      \[\leadsto \color{blue}{\frac{{a}^{\left(t + -1\right)}}{e^{b}} \cdot \frac{x}{y}} \]
    7. Taylor expanded in t around 0 81.3%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot e^{b}\right)}} \]
    8. Taylor expanded in b around 0 40.1%

      \[\leadsto \frac{x}{\color{blue}{a \cdot y + a \cdot \left(b \cdot y\right)}} \]
    9. Taylor expanded in b around inf 40.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(b \cdot y\right)}} \]
    10. Step-by-step derivation
      1. *-commutative40.1%

        \[\leadsto \frac{x}{a \cdot \color{blue}{\left(y \cdot b\right)}} \]
    11. Simplified40.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot \left(y \cdot b\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification36.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq 5.75 \cdot 10^{+51}:\\ \;\;\;\;\frac{\frac{1}{a}}{\frac{y}{x}}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{a \cdot \left(y \cdot b\right)}\\ \end{array} \]

Alternative 21: 31.7% accurate, 44.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.7 \cdot 10^{+92}:\\ \;\;\;\;\frac{x}{y \cdot a}\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{x}{y}}{a}\\ \end{array} \end{array} \]
(FPCore (x y z t a b)
 :precision binary64
 (if (<= t -1.7e+92) (/ x (* y a)) (/ (/ x y) a)))
double code(double x, double y, double z, double t, double a, double b) {
	double tmp;
	if (t <= -1.7e+92) {
		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 (t <= (-1.7d+92)) 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 (t <= -1.7e+92) {
		tmp = x / (y * a);
	} else {
		tmp = (x / y) / a;
	}
	return tmp;
}
def code(x, y, z, t, a, b):
	tmp = 0
	if t <= -1.7e+92:
		tmp = x / (y * a)
	else:
		tmp = (x / y) / a
	return tmp
function code(x, y, z, t, a, b)
	tmp = 0.0
	if (t <= -1.7e+92)
		tmp = Float64(x / Float64(y * a));
	else
		tmp = Float64(Float64(x / y) / a);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b)
	tmp = 0.0;
	if (t <= -1.7e+92)
		tmp = x / (y * a);
	else
		tmp = (x / y) / a;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_] := If[LessEqual[t, -1.7e+92], N[(x / N[(y * a), $MachinePrecision]), $MachinePrecision], N[(N[(x / y), $MachinePrecision] / a), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.7 \cdot 10^{+92}:\\
\;\;\;\;\frac{x}{y \cdot a}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.6999999999999999e92

    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/73.2%

        \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
      2. *-commutative73.2%

        \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
      3. +-commutative73.2%

        \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
      4. associate--l+73.2%

        \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
      5. exp-sum46.3%

        \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
      6. *-commutative46.3%

        \[\leadsto \left(e^{\color{blue}{\log a \cdot \left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      7. exp-to-pow46.3%

        \[\leadsto \left(\color{blue}{{a}^{\left(t - 1\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      8. sub-neg46.3%

        \[\leadsto \left({a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      9. metadata-eval46.3%

        \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
      10. exp-diff36.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
      11. *-commutative36.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
      12. exp-to-pow36.6%

        \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    3. Simplified36.6%

      \[\leadsto \color{blue}{\left({a}^{\left(t + -1\right)} \cdot \frac{{z}^{y}}{e^{b}}\right) \cdot \frac{x}{y}} \]
    4. Taylor expanded in b around 0 63.5%

      \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
    5. Step-by-step derivation
      1. associate-/l*63.5%

        \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      2. *-commutative63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      3. exp-to-pow63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      4. *-commutative63.5%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      5. exp-sum90.4%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
      6. exp-sum63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
      7. *-commutative63.5%

        \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      8. exp-to-pow63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
      9. *-commutative63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
      10. exp-to-pow63.5%

        \[\leadsto \frac{x}{\frac{y}{\color{blue}{{a}^{\left(t - 1\right)}} \cdot {z}^{y}}} \]
      11. sub-neg63.5%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\color{blue}{\left(t + \left(-1\right)\right)}} \cdot {z}^{y}}} \]
      12. metadata-eval63.5%

        \[\leadsto \frac{x}{\frac{y}{{a}^{\left(t + \color{blue}{-1}\right)} \cdot {z}^{y}}} \]
    6. Simplified63.5%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
    7. Taylor expanded in t around 0 47.4%

      \[\leadsto \frac{x}{\color{blue}{\frac{a \cdot y}{{z}^{y}}}} \]
    8. Step-by-step derivation
      1. associate-/l*52.4%

        \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
    9. Simplified52.4%

      \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
    10. Taylor expanded in y around 0 29.1%

      \[\leadsto \color{blue}{\frac{x}{a \cdot y}} \]
    11. Step-by-step derivation
      1. *-commutative29.1%

        \[\leadsto \frac{x}{\color{blue}{y \cdot a}} \]
    12. Simplified29.1%

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

    if -1.6999999999999999e92 < t

    1. Initial program 96.9%

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

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(-1 \cdot \log a + y \cdot \log z\right) - b}}}{y} \]
    3. Step-by-step derivation
      1. +-commutative83.3%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z + -1 \cdot \log a\right)} - b}}{y} \]
      2. mul-1-neg83.3%

        \[\leadsto \frac{x \cdot e^{\left(y \cdot \log z + \color{blue}{\left(-\log a\right)}\right) - b}}{y} \]
      3. unsub-neg83.3%

        \[\leadsto \frac{x \cdot e^{\color{blue}{\left(y \cdot \log z - \log a\right)} - b}}{y} \]
    4. Simplified83.3%

      \[\leadsto \frac{x \cdot \color{blue}{e^{\left(y \cdot \log z - \log a\right) - b}}}{y} \]
    5. Taylor expanded in b around 0 60.1%

      \[\leadsto \color{blue}{\frac{x \cdot e^{y \cdot \log z - \log a}}{y}} \]
    6. Step-by-step derivation
      1. *-commutative60.1%

        \[\leadsto \frac{\color{blue}{e^{y \cdot \log z - \log a} \cdot x}}{y} \]
      2. exp-diff60.1%

        \[\leadsto \frac{\color{blue}{\frac{e^{y \cdot \log z}}{e^{\log a}}} \cdot x}{y} \]
      3. *-commutative60.1%

        \[\leadsto \frac{\frac{e^{\color{blue}{\log z \cdot y}}}{e^{\log a}} \cdot x}{y} \]
      4. exp-to-pow60.1%

        \[\leadsto \frac{\frac{\color{blue}{{z}^{y}}}{e^{\log a}} \cdot x}{y} \]
      5. rem-exp-log60.8%

        \[\leadsto \frac{\frac{{z}^{y}}{\color{blue}{a}} \cdot x}{y} \]
      6. associate-*l/60.9%

        \[\leadsto \frac{\color{blue}{\frac{{z}^{y} \cdot x}{a}}}{y} \]
      7. *-commutative60.9%

        \[\leadsto \frac{\frac{\color{blue}{x \cdot {z}^{y}}}{a}}{y} \]
      8. associate-/r*53.9%

        \[\leadsto \color{blue}{\frac{x \cdot {z}^{y}}{a \cdot y}} \]
      9. *-commutative53.9%

        \[\leadsto \frac{\color{blue}{{z}^{y} \cdot x}}{a \cdot y} \]
      10. times-frac58.7%

        \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    7. Simplified58.7%

      \[\leadsto \color{blue}{\frac{{z}^{y}}{a} \cdot \frac{x}{y}} \]
    8. Taylor expanded in y around 0 32.9%

      \[\leadsto \color{blue}{\frac{1}{a}} \cdot \frac{x}{y} \]
    9. Step-by-step derivation
      1. associate-*l/32.9%

        \[\leadsto \color{blue}{\frac{1 \cdot \frac{x}{y}}{a}} \]
      2. *-un-lft-identity32.9%

        \[\leadsto \frac{\color{blue}{\frac{x}{y}}}{a} \]
    10. Applied egg-rr32.9%

      \[\leadsto \color{blue}{\frac{\frac{x}{y}}{a}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification32.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.7 \cdot 10^{+92}:\\ \;\;\;\;\frac{x}{y \cdot a}\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{x}{y}}{a}\\ \end{array} \]

Alternative 22: 31.3% 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 97.4%

    \[\frac{x \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}}{y} \]
  2. Step-by-step derivation
    1. associate-*l/86.0%

      \[\leadsto \color{blue}{\frac{x}{y} \cdot e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b}} \]
    2. *-commutative86.0%

      \[\leadsto \color{blue}{e^{\left(y \cdot \log z + \left(t - 1\right) \cdot \log a\right) - b} \cdot \frac{x}{y}} \]
    3. +-commutative86.0%

      \[\leadsto e^{\color{blue}{\left(\left(t - 1\right) \cdot \log a + y \cdot \log z\right)} - b} \cdot \frac{x}{y} \]
    4. associate--l+86.0%

      \[\leadsto e^{\color{blue}{\left(t - 1\right) \cdot \log a + \left(y \cdot \log z - b\right)}} \cdot \frac{x}{y} \]
    5. exp-sum72.4%

      \[\leadsto \color{blue}{\left(e^{\left(t - 1\right) \cdot \log a} \cdot e^{y \cdot \log z - b}\right)} \cdot \frac{x}{y} \]
    6. *-commutative72.4%

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

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

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

      \[\leadsto \left({a}^{\left(t + \color{blue}{-1}\right)} \cdot e^{y \cdot \log z - b}\right) \cdot \frac{x}{y} \]
    10. exp-diff64.1%

      \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \color{blue}{\frac{e^{y \cdot \log z}}{e^{b}}}\right) \cdot \frac{x}{y} \]
    11. *-commutative64.1%

      \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{e^{\color{blue}{\log z \cdot y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
    12. exp-to-pow64.1%

      \[\leadsto \left({a}^{\left(t + -1\right)} \cdot \frac{\color{blue}{{z}^{y}}}{e^{b}}\right) \cdot \frac{x}{y} \]
  3. Simplified64.1%

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

    \[\leadsto \color{blue}{\frac{x \cdot \left(e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}\right)}{y}} \]
  5. Step-by-step derivation
    1. associate-/l*69.9%

      \[\leadsto \color{blue}{\frac{x}{\frac{y}{e^{\log a \cdot \left(t - 1\right)} \cdot {z}^{y}}}} \]
    2. *-commutative69.9%

      \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
    3. exp-to-pow69.9%

      \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
    4. *-commutative69.9%

      \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{y \cdot \log z}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
    5. exp-sum80.9%

      \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z + \log a \cdot \left(t - 1\right)}}}} \]
    6. exp-sum69.9%

      \[\leadsto \frac{x}{\frac{y}{\color{blue}{e^{y \cdot \log z} \cdot e^{\log a \cdot \left(t - 1\right)}}}} \]
    7. *-commutative69.9%

      \[\leadsto \frac{x}{\frac{y}{e^{\color{blue}{\log z \cdot y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
    8. exp-to-pow69.9%

      \[\leadsto \frac{x}{\frac{y}{\color{blue}{{z}^{y}} \cdot e^{\log a \cdot \left(t - 1\right)}}} \]
    9. *-commutative69.9%

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

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

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

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

    \[\leadsto \color{blue}{\frac{x}{\frac{y}{{a}^{\left(t + -1\right)} \cdot {z}^{y}}}} \]
  7. Taylor expanded in t around 0 52.8%

    \[\leadsto \frac{x}{\color{blue}{\frac{a \cdot y}{{z}^{y}}}} \]
  8. Step-by-step derivation
    1. associate-/l*59.8%

      \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
  9. Simplified59.8%

    \[\leadsto \frac{x}{\color{blue}{\frac{a}{\frac{{z}^{y}}{y}}}} \]
  10. Taylor expanded in y around 0 27.7%

    \[\leadsto \color{blue}{\frac{x}{a \cdot y}} \]
  11. Step-by-step derivation
    1. *-commutative27.7%

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

    \[\leadsto \color{blue}{\frac{x}{y \cdot a}} \]
  13. Final simplification27.7%

    \[\leadsto \frac{x}{y \cdot a} \]

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 2023293 
(FPCore (x y z t a b)
  :name "Numeric.SpecFunctions:incompleteBetaWorker from math-functions-0.1.5.2, A"
  :precision binary64

  :herbie-target
  (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))