Graphics.Rendering.Plot.Render.Plot.Axis:tickPosition from plot-0.2.3.4

Percentage Accurate: 97.8% → 97.8%
Time: 6.3s
Alternatives: 13
Speedup: 1.0×

Specification

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

\\
x + \left(y - x\right) \cdot \frac{z}{t}
\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 13 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: 97.8% accurate, 1.0× speedup?

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

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

Alternative 1: 97.8% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \mathsf{fma}\left(y - x, \frac{z}{t}, x\right) \end{array} \]
(FPCore (x y z t) :precision binary64 (fma (- y x) (/ z t) x))
double code(double x, double y, double z, double t) {
	return fma((y - x), (z / t), x);
}
function code(x, y, z, t)
	return fma(Float64(y - x), Float64(z / t), x)
end
code[x_, y_, z_, t_] := N[(N[(y - x), $MachinePrecision] * N[(z / t), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}

\\
\mathsf{fma}\left(y - x, \frac{z}{t}, x\right)
\end{array}
Derivation
  1. Initial program 96.5%

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

      \[\leadsto \color{blue}{\left(y - x\right) \cdot \frac{z}{t} + x} \]
    2. fma-def96.5%

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

    \[\leadsto \color{blue}{\mathsf{fma}\left(y - x, \frac{z}{t}, x\right)} \]
  4. Final simplification96.5%

    \[\leadsto \mathsf{fma}\left(y - x, \frac{z}{t}, x\right) \]

Alternative 2: 63.5% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \frac{z}{t}\\ \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;\frac{z}{t} \leq 0.01:\\ \;\;\;\;x\\ \mathbf{elif}\;\frac{z}{t} \leq 10^{+77} \lor \neg \left(\frac{z}{t} \leq 2 \cdot 10^{+208}\right):\\ \;\;\;\;\frac{x}{t} \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (* y (/ z t))))
   (if (<= (/ z t) -1e-93)
     t_1
     (if (<= (/ z t) 0.01)
       x
       (if (or (<= (/ z t) 1e+77) (not (<= (/ z t) 2e+208)))
         (* (/ x t) (- z))
         t_1)))))
double code(double x, double y, double z, double t) {
	double t_1 = y * (z / t);
	double tmp;
	if ((z / t) <= -1e-93) {
		tmp = t_1;
	} else if ((z / t) <= 0.01) {
		tmp = x;
	} else if (((z / t) <= 1e+77) || !((z / t) <= 2e+208)) {
		tmp = (x / t) * -z;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = y * (z / t)
    if ((z / t) <= (-1d-93)) then
        tmp = t_1
    else if ((z / t) <= 0.01d0) then
        tmp = x
    else if (((z / t) <= 1d+77) .or. (.not. ((z / t) <= 2d+208))) then
        tmp = (x / t) * -z
    else
        tmp = t_1
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double t_1 = y * (z / t);
	double tmp;
	if ((z / t) <= -1e-93) {
		tmp = t_1;
	} else if ((z / t) <= 0.01) {
		tmp = x;
	} else if (((z / t) <= 1e+77) || !((z / t) <= 2e+208)) {
		tmp = (x / t) * -z;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t):
	t_1 = y * (z / t)
	tmp = 0
	if (z / t) <= -1e-93:
		tmp = t_1
	elif (z / t) <= 0.01:
		tmp = x
	elif ((z / t) <= 1e+77) or not ((z / t) <= 2e+208):
		tmp = (x / t) * -z
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t)
	t_1 = Float64(y * Float64(z / t))
	tmp = 0.0
	if (Float64(z / t) <= -1e-93)
		tmp = t_1;
	elseif (Float64(z / t) <= 0.01)
		tmp = x;
	elseif ((Float64(z / t) <= 1e+77) || !(Float64(z / t) <= 2e+208))
		tmp = Float64(Float64(x / t) * Float64(-z));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	t_1 = y * (z / t);
	tmp = 0.0;
	if ((z / t) <= -1e-93)
		tmp = t_1;
	elseif ((z / t) <= 0.01)
		tmp = x;
	elseif (((z / t) <= 1e+77) || ~(((z / t) <= 2e+208)))
		tmp = (x / t) * -z;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(z / t), $MachinePrecision], -1e-93], t$95$1, If[LessEqual[N[(z / t), $MachinePrecision], 0.01], x, If[Or[LessEqual[N[(z / t), $MachinePrecision], 1e+77], N[Not[LessEqual[N[(z / t), $MachinePrecision], 2e+208]], $MachinePrecision]], N[(N[(x / t), $MachinePrecision] * (-z)), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \frac{z}{t}\\
\mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;\frac{z}{t} \leq 0.01:\\
\;\;\;\;x\\

\mathbf{elif}\;\frac{z}{t} \leq 10^{+77} \lor \neg \left(\frac{z}{t} \leq 2 \cdot 10^{+208}\right):\\
\;\;\;\;\frac{x}{t} \cdot \left(-z\right)\\

\mathbf{else}:\\
\;\;\;\;t_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 z t) < -9.999999999999999e-94 or 9.99999999999999983e76 < (/.f64 z t) < 2e208

    1. Initial program 99.8%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 81.0%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around inf 56.1%

      \[\leadsto z \cdot \color{blue}{\frac{y}{t}} \]
    4. Taylor expanded in z around 0 58.0%

      \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
    5. Step-by-step derivation
      1. *-commutative58.0%

        \[\leadsto \frac{\color{blue}{z \cdot y}}{t} \]
      2. associate-*l/61.9%

        \[\leadsto \color{blue}{\frac{z}{t} \cdot y} \]
      3. *-commutative61.9%

        \[\leadsto \color{blue}{y \cdot \frac{z}{t}} \]
    6. Simplified61.9%

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

    if -9.999999999999999e-94 < (/.f64 z t) < 0.0100000000000000002

    1. Initial program 95.6%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around 0 72.3%

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

    if 0.0100000000000000002 < (/.f64 z t) < 9.99999999999999983e76 or 2e208 < (/.f64 z t)

    1. Initial program 92.5%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 79.1%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around 0 61.7%

      \[\leadsto \color{blue}{-1 \cdot \frac{x \cdot z}{t}} \]
    4. Step-by-step derivation
      1. mul-1-neg61.7%

        \[\leadsto \color{blue}{-\frac{x \cdot z}{t}} \]
      2. associate-*l/58.4%

        \[\leadsto -\color{blue}{\frac{x}{t} \cdot z} \]
      3. distribute-lft-neg-in58.4%

        \[\leadsto \color{blue}{\left(-\frac{x}{t}\right) \cdot z} \]
      4. distribute-frac-neg58.4%

        \[\leadsto \color{blue}{\frac{-x}{t}} \cdot z \]
      5. *-commutative58.4%

        \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
    5. Simplified58.4%

      \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification65.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{elif}\;\frac{z}{t} \leq 0.01:\\ \;\;\;\;x\\ \mathbf{elif}\;\frac{z}{t} \leq 10^{+77} \lor \neg \left(\frac{z}{t} \leq 2 \cdot 10^{+208}\right):\\ \;\;\;\;\frac{x}{t} \cdot \left(-z\right)\\ \mathbf{else}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \end{array} \]

Alternative 3: 63.9% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \frac{z}{t}\\ \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;\frac{z}{t} \leq 0.01:\\ \;\;\;\;x\\ \mathbf{elif}\;\frac{z}{t} \leq 10^{+77}:\\ \;\;\;\;x \cdot \frac{z}{-t}\\ \mathbf{elif}\;\frac{z}{t} \leq 2 \cdot 10^{+208}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{t} \cdot \left(-z\right)\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (* y (/ z t))))
   (if (<= (/ z t) -1e-93)
     t_1
     (if (<= (/ z t) 0.01)
       x
       (if (<= (/ z t) 1e+77)
         (* x (/ z (- t)))
         (if (<= (/ z t) 2e+208) t_1 (* (/ x t) (- z))))))))
double code(double x, double y, double z, double t) {
	double t_1 = y * (z / t);
	double tmp;
	if ((z / t) <= -1e-93) {
		tmp = t_1;
	} else if ((z / t) <= 0.01) {
		tmp = x;
	} else if ((z / t) <= 1e+77) {
		tmp = x * (z / -t);
	} else if ((z / t) <= 2e+208) {
		tmp = t_1;
	} else {
		tmp = (x / t) * -z;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = y * (z / t)
    if ((z / t) <= (-1d-93)) then
        tmp = t_1
    else if ((z / t) <= 0.01d0) then
        tmp = x
    else if ((z / t) <= 1d+77) then
        tmp = x * (z / -t)
    else if ((z / t) <= 2d+208) then
        tmp = t_1
    else
        tmp = (x / t) * -z
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double t_1 = y * (z / t);
	double tmp;
	if ((z / t) <= -1e-93) {
		tmp = t_1;
	} else if ((z / t) <= 0.01) {
		tmp = x;
	} else if ((z / t) <= 1e+77) {
		tmp = x * (z / -t);
	} else if ((z / t) <= 2e+208) {
		tmp = t_1;
	} else {
		tmp = (x / t) * -z;
	}
	return tmp;
}
def code(x, y, z, t):
	t_1 = y * (z / t)
	tmp = 0
	if (z / t) <= -1e-93:
		tmp = t_1
	elif (z / t) <= 0.01:
		tmp = x
	elif (z / t) <= 1e+77:
		tmp = x * (z / -t)
	elif (z / t) <= 2e+208:
		tmp = t_1
	else:
		tmp = (x / t) * -z
	return tmp
function code(x, y, z, t)
	t_1 = Float64(y * Float64(z / t))
	tmp = 0.0
	if (Float64(z / t) <= -1e-93)
		tmp = t_1;
	elseif (Float64(z / t) <= 0.01)
		tmp = x;
	elseif (Float64(z / t) <= 1e+77)
		tmp = Float64(x * Float64(z / Float64(-t)));
	elseif (Float64(z / t) <= 2e+208)
		tmp = t_1;
	else
		tmp = Float64(Float64(x / t) * Float64(-z));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	t_1 = y * (z / t);
	tmp = 0.0;
	if ((z / t) <= -1e-93)
		tmp = t_1;
	elseif ((z / t) <= 0.01)
		tmp = x;
	elseif ((z / t) <= 1e+77)
		tmp = x * (z / -t);
	elseif ((z / t) <= 2e+208)
		tmp = t_1;
	else
		tmp = (x / t) * -z;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(z / t), $MachinePrecision], -1e-93], t$95$1, If[LessEqual[N[(z / t), $MachinePrecision], 0.01], x, If[LessEqual[N[(z / t), $MachinePrecision], 1e+77], N[(x * N[(z / (-t)), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(z / t), $MachinePrecision], 2e+208], t$95$1, N[(N[(x / t), $MachinePrecision] * (-z)), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \frac{z}{t}\\
\mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;\frac{z}{t} \leq 0.01:\\
\;\;\;\;x\\

\mathbf{elif}\;\frac{z}{t} \leq 10^{+77}:\\
\;\;\;\;x \cdot \frac{z}{-t}\\

\mathbf{elif}\;\frac{z}{t} \leq 2 \cdot 10^{+208}:\\
\;\;\;\;t_1\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (/.f64 z t) < -9.999999999999999e-94 or 9.99999999999999983e76 < (/.f64 z t) < 2e208

    1. Initial program 99.8%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 81.0%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around inf 56.1%

      \[\leadsto z \cdot \color{blue}{\frac{y}{t}} \]
    4. Taylor expanded in z around 0 58.0%

      \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
    5. Step-by-step derivation
      1. *-commutative58.0%

        \[\leadsto \frac{\color{blue}{z \cdot y}}{t} \]
      2. associate-*l/61.9%

        \[\leadsto \color{blue}{\frac{z}{t} \cdot y} \]
      3. *-commutative61.9%

        \[\leadsto \color{blue}{y \cdot \frac{z}{t}} \]
    6. Simplified61.9%

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

    if -9.999999999999999e-94 < (/.f64 z t) < 0.0100000000000000002

    1. Initial program 95.6%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around 0 72.3%

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

    if 0.0100000000000000002 < (/.f64 z t) < 9.99999999999999983e76

    1. Initial program 99.6%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 59.9%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around 0 62.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{x \cdot z}{t}} \]
    4. Step-by-step derivation
      1. mul-1-neg62.9%

        \[\leadsto \color{blue}{-\frac{x \cdot z}{t}} \]
      2. associate-*l/54.2%

        \[\leadsto -\color{blue}{\frac{x}{t} \cdot z} \]
      3. distribute-lft-neg-in54.2%

        \[\leadsto \color{blue}{\left(-\frac{x}{t}\right) \cdot z} \]
      4. distribute-frac-neg54.2%

        \[\leadsto \color{blue}{\frac{-x}{t}} \cdot z \]
      5. *-commutative54.2%

        \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
    5. Simplified54.2%

      \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
    6. Step-by-step derivation
      1. frac-2neg54.2%

        \[\leadsto z \cdot \color{blue}{\frac{-\left(-x\right)}{-t}} \]
      2. remove-double-neg54.2%

        \[\leadsto z \cdot \frac{\color{blue}{x}}{-t} \]
      3. associate-*r/62.9%

        \[\leadsto \color{blue}{\frac{z \cdot x}{-t}} \]
    7. Applied egg-rr62.9%

      \[\leadsto \color{blue}{\frac{z \cdot x}{-t}} \]
    8. Step-by-step derivation
      1. associate-/l*54.3%

        \[\leadsto \color{blue}{\frac{z}{\frac{-t}{x}}} \]
      2. associate-/r/72.8%

        \[\leadsto \color{blue}{\frac{z}{-t} \cdot x} \]
    9. Simplified72.8%

      \[\leadsto \color{blue}{\frac{z}{-t} \cdot x} \]

    if 2e208 < (/.f64 z t)

    1. Initial program 88.3%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 90.5%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around 0 60.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{x \cdot z}{t}} \]
    4. Step-by-step derivation
      1. mul-1-neg60.9%

        \[\leadsto \color{blue}{-\frac{x \cdot z}{t}} \]
      2. associate-*l/60.9%

        \[\leadsto -\color{blue}{\frac{x}{t} \cdot z} \]
      3. distribute-lft-neg-in60.9%

        \[\leadsto \color{blue}{\left(-\frac{x}{t}\right) \cdot z} \]
      4. distribute-frac-neg60.9%

        \[\leadsto \color{blue}{\frac{-x}{t}} \cdot z \]
      5. *-commutative60.9%

        \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
    5. Simplified60.9%

      \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification67.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{elif}\;\frac{z}{t} \leq 0.01:\\ \;\;\;\;x\\ \mathbf{elif}\;\frac{z}{t} \leq 10^{+77}:\\ \;\;\;\;x \cdot \frac{z}{-t}\\ \mathbf{elif}\;\frac{z}{t} \leq 2 \cdot 10^{+208}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{t} \cdot \left(-z\right)\\ \end{array} \]

Alternative 4: 63.9% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := y \cdot \frac{z}{t}\\ \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;\frac{z}{t} \leq 0.01:\\ \;\;\;\;x\\ \mathbf{elif}\;\frac{z}{t} \leq 10^{+77}:\\ \;\;\;\;x \cdot \frac{z}{-t}\\ \mathbf{elif}\;\frac{z}{t} \leq 2 \cdot 10^{+208}:\\ \;\;\;\;t_1\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{\frac{-t}{x}}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (* y (/ z t))))
   (if (<= (/ z t) -1e-93)
     t_1
     (if (<= (/ z t) 0.01)
       x
       (if (<= (/ z t) 1e+77)
         (* x (/ z (- t)))
         (if (<= (/ z t) 2e+208) t_1 (/ z (/ (- t) x))))))))
double code(double x, double y, double z, double t) {
	double t_1 = y * (z / t);
	double tmp;
	if ((z / t) <= -1e-93) {
		tmp = t_1;
	} else if ((z / t) <= 0.01) {
		tmp = x;
	} else if ((z / t) <= 1e+77) {
		tmp = x * (z / -t);
	} else if ((z / t) <= 2e+208) {
		tmp = t_1;
	} else {
		tmp = z / (-t / x);
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: tmp
    t_1 = y * (z / t)
    if ((z / t) <= (-1d-93)) then
        tmp = t_1
    else if ((z / t) <= 0.01d0) then
        tmp = x
    else if ((z / t) <= 1d+77) then
        tmp = x * (z / -t)
    else if ((z / t) <= 2d+208) then
        tmp = t_1
    else
        tmp = z / (-t / x)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double t_1 = y * (z / t);
	double tmp;
	if ((z / t) <= -1e-93) {
		tmp = t_1;
	} else if ((z / t) <= 0.01) {
		tmp = x;
	} else if ((z / t) <= 1e+77) {
		tmp = x * (z / -t);
	} else if ((z / t) <= 2e+208) {
		tmp = t_1;
	} else {
		tmp = z / (-t / x);
	}
	return tmp;
}
def code(x, y, z, t):
	t_1 = y * (z / t)
	tmp = 0
	if (z / t) <= -1e-93:
		tmp = t_1
	elif (z / t) <= 0.01:
		tmp = x
	elif (z / t) <= 1e+77:
		tmp = x * (z / -t)
	elif (z / t) <= 2e+208:
		tmp = t_1
	else:
		tmp = z / (-t / x)
	return tmp
function code(x, y, z, t)
	t_1 = Float64(y * Float64(z / t))
	tmp = 0.0
	if (Float64(z / t) <= -1e-93)
		tmp = t_1;
	elseif (Float64(z / t) <= 0.01)
		tmp = x;
	elseif (Float64(z / t) <= 1e+77)
		tmp = Float64(x * Float64(z / Float64(-t)));
	elseif (Float64(z / t) <= 2e+208)
		tmp = t_1;
	else
		tmp = Float64(z / Float64(Float64(-t) / x));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	t_1 = y * (z / t);
	tmp = 0.0;
	if ((z / t) <= -1e-93)
		tmp = t_1;
	elseif ((z / t) <= 0.01)
		tmp = x;
	elseif ((z / t) <= 1e+77)
		tmp = x * (z / -t);
	elseif ((z / t) <= 2e+208)
		tmp = t_1;
	else
		tmp = z / (-t / x);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(z / t), $MachinePrecision], -1e-93], t$95$1, If[LessEqual[N[(z / t), $MachinePrecision], 0.01], x, If[LessEqual[N[(z / t), $MachinePrecision], 1e+77], N[(x * N[(z / (-t)), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(z / t), $MachinePrecision], 2e+208], t$95$1, N[(z / N[((-t) / x), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := y \cdot \frac{z}{t}\\
\mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\
\;\;\;\;t_1\\

\mathbf{elif}\;\frac{z}{t} \leq 0.01:\\
\;\;\;\;x\\

\mathbf{elif}\;\frac{z}{t} \leq 10^{+77}:\\
\;\;\;\;x \cdot \frac{z}{-t}\\

\mathbf{elif}\;\frac{z}{t} \leq 2 \cdot 10^{+208}:\\
\;\;\;\;t_1\\

\mathbf{else}:\\
\;\;\;\;\frac{z}{\frac{-t}{x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (/.f64 z t) < -9.999999999999999e-94 or 9.99999999999999983e76 < (/.f64 z t) < 2e208

    1. Initial program 99.8%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 81.0%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around inf 56.1%

      \[\leadsto z \cdot \color{blue}{\frac{y}{t}} \]
    4. Taylor expanded in z around 0 58.0%

      \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
    5. Step-by-step derivation
      1. *-commutative58.0%

        \[\leadsto \frac{\color{blue}{z \cdot y}}{t} \]
      2. associate-*l/61.9%

        \[\leadsto \color{blue}{\frac{z}{t} \cdot y} \]
      3. *-commutative61.9%

        \[\leadsto \color{blue}{y \cdot \frac{z}{t}} \]
    6. Simplified61.9%

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

    if -9.999999999999999e-94 < (/.f64 z t) < 0.0100000000000000002

    1. Initial program 95.6%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around 0 72.3%

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

    if 0.0100000000000000002 < (/.f64 z t) < 9.99999999999999983e76

    1. Initial program 99.6%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 59.9%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around 0 62.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{x \cdot z}{t}} \]
    4. Step-by-step derivation
      1. mul-1-neg62.9%

        \[\leadsto \color{blue}{-\frac{x \cdot z}{t}} \]
      2. associate-*l/54.2%

        \[\leadsto -\color{blue}{\frac{x}{t} \cdot z} \]
      3. distribute-lft-neg-in54.2%

        \[\leadsto \color{blue}{\left(-\frac{x}{t}\right) \cdot z} \]
      4. distribute-frac-neg54.2%

        \[\leadsto \color{blue}{\frac{-x}{t}} \cdot z \]
      5. *-commutative54.2%

        \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
    5. Simplified54.2%

      \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
    6. Step-by-step derivation
      1. frac-2neg54.2%

        \[\leadsto z \cdot \color{blue}{\frac{-\left(-x\right)}{-t}} \]
      2. remove-double-neg54.2%

        \[\leadsto z \cdot \frac{\color{blue}{x}}{-t} \]
      3. associate-*r/62.9%

        \[\leadsto \color{blue}{\frac{z \cdot x}{-t}} \]
    7. Applied egg-rr62.9%

      \[\leadsto \color{blue}{\frac{z \cdot x}{-t}} \]
    8. Step-by-step derivation
      1. associate-/l*54.3%

        \[\leadsto \color{blue}{\frac{z}{\frac{-t}{x}}} \]
      2. associate-/r/72.8%

        \[\leadsto \color{blue}{\frac{z}{-t} \cdot x} \]
    9. Simplified72.8%

      \[\leadsto \color{blue}{\frac{z}{-t} \cdot x} \]

    if 2e208 < (/.f64 z t)

    1. Initial program 88.3%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 90.5%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around 0 60.9%

      \[\leadsto \color{blue}{-1 \cdot \frac{x \cdot z}{t}} \]
    4. Step-by-step derivation
      1. mul-1-neg60.9%

        \[\leadsto \color{blue}{-\frac{x \cdot z}{t}} \]
      2. associate-*l/60.9%

        \[\leadsto -\color{blue}{\frac{x}{t} \cdot z} \]
      3. distribute-lft-neg-in60.9%

        \[\leadsto \color{blue}{\left(-\frac{x}{t}\right) \cdot z} \]
      4. distribute-frac-neg60.9%

        \[\leadsto \color{blue}{\frac{-x}{t}} \cdot z \]
      5. *-commutative60.9%

        \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
    5. Simplified60.9%

      \[\leadsto \color{blue}{z \cdot \frac{-x}{t}} \]
    6. Step-by-step derivation
      1. frac-2neg60.9%

        \[\leadsto z \cdot \color{blue}{\frac{-\left(-x\right)}{-t}} \]
      2. remove-double-neg60.9%

        \[\leadsto z \cdot \frac{\color{blue}{x}}{-t} \]
      3. associate-*r/60.9%

        \[\leadsto \color{blue}{\frac{z \cdot x}{-t}} \]
    7. Applied egg-rr60.9%

      \[\leadsto \color{blue}{\frac{z \cdot x}{-t}} \]
    8. Step-by-step derivation
      1. associate-/l*60.9%

        \[\leadsto \color{blue}{\frac{z}{\frac{-t}{x}}} \]
    9. Simplified60.9%

      \[\leadsto \color{blue}{\frac{z}{\frac{-t}{x}}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification67.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{elif}\;\frac{z}{t} \leq 0.01:\\ \;\;\;\;x\\ \mathbf{elif}\;\frac{z}{t} \leq 10^{+77}:\\ \;\;\;\;x \cdot \frac{z}{-t}\\ \mathbf{elif}\;\frac{z}{t} \leq 2 \cdot 10^{+208}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{\frac{-t}{x}}\\ \end{array} \]

Alternative 5: 94.9% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -10000000 \lor \neg \left(\frac{z}{t} \leq 0.01\right):\\ \;\;\;\;\frac{\left(y - x\right) \cdot z}{t}\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot \frac{z}{t}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= (/ z t) -10000000.0) (not (<= (/ z t) 0.01)))
   (/ (* (- y x) z) t)
   (+ x (* y (/ z t)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (((z / t) <= -10000000.0) || !((z / t) <= 0.01)) {
		tmp = ((y - x) * z) / t;
	} else {
		tmp = x + (y * (z / t));
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (((z / t) <= (-10000000.0d0)) .or. (.not. ((z / t) <= 0.01d0))) then
        tmp = ((y - x) * z) / t
    else
        tmp = x + (y * (z / t))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (((z / t) <= -10000000.0) || !((z / t) <= 0.01)) {
		tmp = ((y - x) * z) / t;
	} else {
		tmp = x + (y * (z / t));
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if ((z / t) <= -10000000.0) or not ((z / t) <= 0.01):
		tmp = ((y - x) * z) / t
	else:
		tmp = x + (y * (z / t))
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((Float64(z / t) <= -10000000.0) || !(Float64(z / t) <= 0.01))
		tmp = Float64(Float64(Float64(y - x) * z) / t);
	else
		tmp = Float64(x + Float64(y * Float64(z / t)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (((z / t) <= -10000000.0) || ~(((z / t) <= 0.01)))
		tmp = ((y - x) * z) / t;
	else
		tmp = x + (y * (z / t));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -10000000.0], N[Not[LessEqual[N[(z / t), $MachinePrecision], 0.01]], $MachinePrecision]], N[(N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision] / t), $MachinePrecision], N[(x + N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -10000000 \lor \neg \left(\frac{z}{t} \leq 0.01\right):\\
\;\;\;\;\frac{\left(y - x\right) \cdot z}{t}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 z t) < -1e7 or 0.0100000000000000002 < (/.f64 z t)

    1. Initial program 96.9%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 84.7%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Step-by-step derivation
      1. *-commutative84.7%

        \[\leadsto \color{blue}{\left(\frac{y}{t} - \frac{x}{t}\right) \cdot z} \]
      2. sub-div89.4%

        \[\leadsto \color{blue}{\frac{y - x}{t}} \cdot z \]
      3. associate-*l/93.8%

        \[\leadsto \color{blue}{\frac{\left(y - x\right) \cdot z}{t}} \]
    4. Applied egg-rr93.8%

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

    if -1e7 < (/.f64 z t) < 0.0100000000000000002

    1. Initial program 96.2%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in y around inf 94.0%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{t}} \]
    3. Step-by-step derivation
      1. associate-*r/94.2%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{t}} \]
    4. Simplified94.2%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{t}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification94.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -10000000 \lor \neg \left(\frac{z}{t} \leq 0.01\right):\\ \;\;\;\;\frac{\left(y - x\right) \cdot z}{t}\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot \frac{z}{t}\\ \end{array} \]

Alternative 6: 64.7% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93} \lor \neg \left(\frac{z}{t} \leq 5 \cdot 10^{-17}\right):\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= (/ z t) -1e-93) (not (<= (/ z t) 5e-17))) (* y (/ z t)) x))
double code(double x, double y, double z, double t) {
	double tmp;
	if (((z / t) <= -1e-93) || !((z / t) <= 5e-17)) {
		tmp = y * (z / t);
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (((z / t) <= (-1d-93)) .or. (.not. ((z / t) <= 5d-17))) then
        tmp = y * (z / t)
    else
        tmp = x
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (((z / t) <= -1e-93) || !((z / t) <= 5e-17)) {
		tmp = y * (z / t);
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if ((z / t) <= -1e-93) or not ((z / t) <= 5e-17):
		tmp = y * (z / t)
	else:
		tmp = x
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((Float64(z / t) <= -1e-93) || !(Float64(z / t) <= 5e-17))
		tmp = Float64(y * Float64(z / t));
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (((z / t) <= -1e-93) || ~(((z / t) <= 5e-17)))
		tmp = y * (z / t);
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[N[(z / t), $MachinePrecision], -1e-93], N[Not[LessEqual[N[(z / t), $MachinePrecision], 5e-17]], $MachinePrecision]], N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93} \lor \neg \left(\frac{z}{t} \leq 5 \cdot 10^{-17}\right):\\
\;\;\;\;y \cdot \frac{z}{t}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 z t) < -9.999999999999999e-94 or 4.9999999999999999e-17 < (/.f64 z t)

    1. Initial program 97.3%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 78.9%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around inf 49.0%

      \[\leadsto z \cdot \color{blue}{\frac{y}{t}} \]
    4. Taylor expanded in z around 0 52.6%

      \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
    5. Step-by-step derivation
      1. *-commutative52.6%

        \[\leadsto \frac{\color{blue}{z \cdot y}}{t} \]
      2. associate-*l/53.8%

        \[\leadsto \color{blue}{\frac{z}{t} \cdot y} \]
      3. *-commutative53.8%

        \[\leadsto \color{blue}{y \cdot \frac{z}{t}} \]
    6. Simplified53.8%

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

    if -9.999999999999999e-94 < (/.f64 z t) < 4.9999999999999999e-17

    1. Initial program 95.5%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around 0 73.9%

      \[\leadsto \color{blue}{x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification62.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93} \lor \neg \left(\frac{z}{t} \leq 5 \cdot 10^{-17}\right):\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]

Alternative 7: 63.5% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{elif}\;\frac{z}{t} \leq 5 \cdot 10^{-17}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot z}{t}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= (/ z t) -1e-93)
   (* y (/ z t))
   (if (<= (/ z t) 5e-17) x (/ (* y z) t))))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((z / t) <= -1e-93) {
		tmp = y * (z / t);
	} else if ((z / t) <= 5e-17) {
		tmp = x;
	} else {
		tmp = (y * z) / t;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((z / t) <= (-1d-93)) then
        tmp = y * (z / t)
    else if ((z / t) <= 5d-17) then
        tmp = x
    else
        tmp = (y * z) / t
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((z / t) <= -1e-93) {
		tmp = y * (z / t);
	} else if ((z / t) <= 5e-17) {
		tmp = x;
	} else {
		tmp = (y * z) / t;
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (z / t) <= -1e-93:
		tmp = y * (z / t)
	elif (z / t) <= 5e-17:
		tmp = x
	else:
		tmp = (y * z) / t
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (Float64(z / t) <= -1e-93)
		tmp = Float64(y * Float64(z / t));
	elseif (Float64(z / t) <= 5e-17)
		tmp = x;
	else
		tmp = Float64(Float64(y * z) / t);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((z / t) <= -1e-93)
		tmp = y * (z / t);
	elseif ((z / t) <= 5e-17)
		tmp = x;
	else
		tmp = (y * z) / t;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[N[(z / t), $MachinePrecision], -1e-93], N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(z / t), $MachinePrecision], 5e-17], x, N[(N[(y * z), $MachinePrecision] / t), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\
\;\;\;\;y \cdot \frac{z}{t}\\

\mathbf{elif}\;\frac{z}{t} \leq 5 \cdot 10^{-17}:\\
\;\;\;\;x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 z t) < -9.999999999999999e-94

    1. Initial program 99.7%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 79.3%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around inf 53.4%

      \[\leadsto z \cdot \color{blue}{\frac{y}{t}} \]
    4. Taylor expanded in z around 0 54.6%

      \[\leadsto \color{blue}{\frac{y \cdot z}{t}} \]
    5. Step-by-step derivation
      1. *-commutative54.6%

        \[\leadsto \frac{\color{blue}{z \cdot y}}{t} \]
      2. associate-*l/58.5%

        \[\leadsto \color{blue}{\frac{z}{t} \cdot y} \]
      3. *-commutative58.5%

        \[\leadsto \color{blue}{y \cdot \frac{z}{t}} \]
    6. Simplified58.5%

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

    if -9.999999999999999e-94 < (/.f64 z t) < 4.9999999999999999e-17

    1. Initial program 95.5%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around 0 73.9%

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

    if 4.9999999999999999e-17 < (/.f64 z t)

    1. Initial program 94.9%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 78.6%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around inf 44.9%

      \[\leadsto z \cdot \color{blue}{\frac{y}{t}} \]
    4. Step-by-step derivation
      1. associate-*r/50.7%

        \[\leadsto \color{blue}{\frac{z \cdot y}{t}} \]
    5. Applied egg-rr50.7%

      \[\leadsto \color{blue}{\frac{z \cdot y}{t}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification62.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z}{t} \leq -1 \cdot 10^{-93}:\\ \;\;\;\;y \cdot \frac{z}{t}\\ \mathbf{elif}\;\frac{z}{t} \leq 5 \cdot 10^{-17}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot z}{t}\\ \end{array} \]

Alternative 8: 73.5% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.45 \cdot 10^{-114} \lor \neg \left(x \leq 2.15 \cdot 10^{-35}\right):\\ \;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot z}{t}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= x -2.45e-114) (not (<= x 2.15e-35)))
   (* x (- 1.0 (/ z t)))
   (/ (* y z) t)))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((x <= -2.45e-114) || !(x <= 2.15e-35)) {
		tmp = x * (1.0 - (z / t));
	} else {
		tmp = (y * z) / t;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((x <= (-2.45d-114)) .or. (.not. (x <= 2.15d-35))) then
        tmp = x * (1.0d0 - (z / t))
    else
        tmp = (y * z) / t
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((x <= -2.45e-114) || !(x <= 2.15e-35)) {
		tmp = x * (1.0 - (z / t));
	} else {
		tmp = (y * z) / t;
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (x <= -2.45e-114) or not (x <= 2.15e-35):
		tmp = x * (1.0 - (z / t))
	else:
		tmp = (y * z) / t
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((x <= -2.45e-114) || !(x <= 2.15e-35))
		tmp = Float64(x * Float64(1.0 - Float64(z / t)));
	else
		tmp = Float64(Float64(y * z) / t);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((x <= -2.45e-114) || ~((x <= 2.15e-35)))
		tmp = x * (1.0 - (z / t));
	else
		tmp = (y * z) / t;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[x, -2.45e-114], N[Not[LessEqual[x, 2.15e-35]], $MachinePrecision]], N[(x * N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y * z), $MachinePrecision] / t), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.45 \cdot 10^{-114} \lor \neg \left(x \leq 2.15 \cdot 10^{-35}\right):\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -2.4499999999999999e-114 or 2.1500000000000001e-35 < x

    1. Initial program 98.7%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in x around inf 82.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -1 \cdot \frac{z}{t}\right)} \]
    3. Step-by-step derivation
      1. mul-1-neg82.2%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-\frac{z}{t}\right)}\right) \]
      2. unsub-neg82.2%

        \[\leadsto x \cdot \color{blue}{\left(1 - \frac{z}{t}\right)} \]
    4. Simplified82.2%

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

    if -2.4499999999999999e-114 < x < 2.1500000000000001e-35

    1. Initial program 93.0%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in z around inf 75.5%

      \[\leadsto \color{blue}{z \cdot \left(\frac{y}{t} - \frac{x}{t}\right)} \]
    3. Taylor expanded in y around inf 68.0%

      \[\leadsto z \cdot \color{blue}{\frac{y}{t}} \]
    4. Step-by-step derivation
      1. associate-*r/71.5%

        \[\leadsto \color{blue}{\frac{z \cdot y}{t}} \]
    5. Applied egg-rr71.5%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2.45 \cdot 10^{-114} \lor \neg \left(x \leq 2.15 \cdot 10^{-35}\right):\\ \;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot z}{t}\\ \end{array} \]

Alternative 9: 85.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.7 \cdot 10^{+20} \lor \neg \left(y \leq 1.66 \cdot 10^{-34}\right):\\ \;\;\;\;x + y \cdot \frac{z}{t}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= y -1.7e+20) (not (<= y 1.66e-34)))
   (+ x (* y (/ z t)))
   (* x (- 1.0 (/ z t)))))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -1.7e+20) || !(y <= 1.66e-34)) {
		tmp = x + (y * (z / t));
	} else {
		tmp = x * (1.0 - (z / t));
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((y <= (-1.7d+20)) .or. (.not. (y <= 1.66d-34))) then
        tmp = x + (y * (z / t))
    else
        tmp = x * (1.0d0 - (z / t))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((y <= -1.7e+20) || !(y <= 1.66e-34)) {
		tmp = x + (y * (z / t));
	} else {
		tmp = x * (1.0 - (z / t));
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (y <= -1.7e+20) or not (y <= 1.66e-34):
		tmp = x + (y * (z / t))
	else:
		tmp = x * (1.0 - (z / t))
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((y <= -1.7e+20) || !(y <= 1.66e-34))
		tmp = Float64(x + Float64(y * Float64(z / t)));
	else
		tmp = Float64(x * Float64(1.0 - Float64(z / t)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((y <= -1.7e+20) || ~((y <= 1.66e-34)))
		tmp = x + (y * (z / t));
	else
		tmp = x * (1.0 - (z / t));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[y, -1.7e+20], N[Not[LessEqual[y, 1.66e-34]], $MachinePrecision]], N[(x + N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x * N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.7 \cdot 10^{+20} \lor \neg \left(y \leq 1.66 \cdot 10^{-34}\right):\\
\;\;\;\;x + y \cdot \frac{z}{t}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.7e20 or 1.6599999999999999e-34 < y

    1. Initial program 96.4%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in y around inf 83.9%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{t}} \]
    3. Step-by-step derivation
      1. associate-*r/85.4%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{t}} \]
    4. Simplified85.4%

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

    if -1.7e20 < y < 1.6599999999999999e-34

    1. Initial program 96.6%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in x around inf 87.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -1 \cdot \frac{z}{t}\right)} \]
    3. Step-by-step derivation
      1. mul-1-neg87.2%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-\frac{z}{t}\right)}\right) \]
      2. unsub-neg87.2%

        \[\leadsto x \cdot \color{blue}{\left(1 - \frac{z}{t}\right)} \]
    4. Simplified87.2%

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

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.7 \cdot 10^{+20} \lor \neg \left(y \leq 1.66 \cdot 10^{-34}\right):\\ \;\;\;\;x + y \cdot \frac{z}{t}\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\ \end{array} \]

Alternative 10: 84.1% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -8.5 \cdot 10^{-55} \lor \neg \left(x \leq 750\right):\\ \;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot z}{t}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (or (<= x -8.5e-55) (not (<= x 750.0)))
   (* x (- 1.0 (/ z t)))
   (+ x (/ (* y z) t))))
double code(double x, double y, double z, double t) {
	double tmp;
	if ((x <= -8.5e-55) || !(x <= 750.0)) {
		tmp = x * (1.0 - (z / t));
	} else {
		tmp = x + ((y * z) / t);
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if ((x <= (-8.5d-55)) .or. (.not. (x <= 750.0d0))) then
        tmp = x * (1.0d0 - (z / t))
    else
        tmp = x + ((y * z) / t)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if ((x <= -8.5e-55) || !(x <= 750.0)) {
		tmp = x * (1.0 - (z / t));
	} else {
		tmp = x + ((y * z) / t);
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if (x <= -8.5e-55) or not (x <= 750.0):
		tmp = x * (1.0 - (z / t))
	else:
		tmp = x + ((y * z) / t)
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if ((x <= -8.5e-55) || !(x <= 750.0))
		tmp = Float64(x * Float64(1.0 - Float64(z / t)));
	else
		tmp = Float64(x + Float64(Float64(y * z) / t));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if ((x <= -8.5e-55) || ~((x <= 750.0)))
		tmp = x * (1.0 - (z / t));
	else
		tmp = x + ((y * z) / t);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[Or[LessEqual[x, -8.5e-55], N[Not[LessEqual[x, 750.0]], $MachinePrecision]], N[(x * N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(N[(y * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.5 \cdot 10^{-55} \lor \neg \left(x \leq 750\right):\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -8.49999999999999968e-55 or 750 < x

    1. Initial program 99.9%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in x around inf 86.0%

      \[\leadsto \color{blue}{x \cdot \left(1 + -1 \cdot \frac{z}{t}\right)} \]
    3. Step-by-step derivation
      1. mul-1-neg86.0%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-\frac{z}{t}\right)}\right) \]
      2. unsub-neg86.0%

        \[\leadsto x \cdot \color{blue}{\left(1 - \frac{z}{t}\right)} \]
    4. Simplified86.0%

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

    if -8.49999999999999968e-55 < x < 750

    1. Initial program 92.7%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in y around inf 87.4%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{t}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification86.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -8.5 \cdot 10^{-55} \lor \neg \left(x \leq 750\right):\\ \;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\ \mathbf{else}:\\ \;\;\;\;x + \frac{y \cdot z}{t}\\ \end{array} \]

Alternative 11: 85.7% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.3 \cdot 10^{+19}:\\ \;\;\;\;x + \frac{y}{\frac{t}{z}}\\ \mathbf{elif}\;y \leq 4.05 \cdot 10^{-35}:\\ \;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot \frac{z}{t}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= y -5.3e+19)
   (+ x (/ y (/ t z)))
   (if (<= y 4.05e-35) (* x (- 1.0 (/ z t))) (+ x (* y (/ z t))))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -5.3e+19) {
		tmp = x + (y / (t / z));
	} else if (y <= 4.05e-35) {
		tmp = x * (1.0 - (z / t));
	} else {
		tmp = x + (y * (z / t));
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: tmp
    if (y <= (-5.3d+19)) then
        tmp = x + (y / (t / z))
    else if (y <= 4.05d-35) then
        tmp = x * (1.0d0 - (z / t))
    else
        tmp = x + (y * (z / t))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double tmp;
	if (y <= -5.3e+19) {
		tmp = x + (y / (t / z));
	} else if (y <= 4.05e-35) {
		tmp = x * (1.0 - (z / t));
	} else {
		tmp = x + (y * (z / t));
	}
	return tmp;
}
def code(x, y, z, t):
	tmp = 0
	if y <= -5.3e+19:
		tmp = x + (y / (t / z))
	elif y <= 4.05e-35:
		tmp = x * (1.0 - (z / t))
	else:
		tmp = x + (y * (z / t))
	return tmp
function code(x, y, z, t)
	tmp = 0.0
	if (y <= -5.3e+19)
		tmp = Float64(x + Float64(y / Float64(t / z)));
	elseif (y <= 4.05e-35)
		tmp = Float64(x * Float64(1.0 - Float64(z / t)));
	else
		tmp = Float64(x + Float64(y * Float64(z / t)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	tmp = 0.0;
	if (y <= -5.3e+19)
		tmp = x + (y / (t / z));
	elseif (y <= 4.05e-35)
		tmp = x * (1.0 - (z / t));
	else
		tmp = x + (y * (z / t));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := If[LessEqual[y, -5.3e+19], N[(x + N[(y / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.05e-35], N[(x * N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.3 \cdot 10^{+19}:\\
\;\;\;\;x + \frac{y}{\frac{t}{z}}\\

\mathbf{elif}\;y \leq 4.05 \cdot 10^{-35}:\\
\;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -5.3e19

    1. Initial program 98.1%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in y around inf 86.8%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{t}} \]
    3. Step-by-step derivation
      1. associate-*r/91.7%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{t}} \]
    4. Simplified91.7%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{t}} \]
    5. Step-by-step derivation
      1. associate-*r/86.8%

        \[\leadsto x + \color{blue}{\frac{y \cdot z}{t}} \]
      2. associate-/l*91.7%

        \[\leadsto x + \color{blue}{\frac{y}{\frac{t}{z}}} \]
    6. Applied egg-rr91.7%

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

    if -5.3e19 < y < 4.05000000000000015e-35

    1. Initial program 96.6%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in x around inf 87.2%

      \[\leadsto \color{blue}{x \cdot \left(1 + -1 \cdot \frac{z}{t}\right)} \]
    3. Step-by-step derivation
      1. mul-1-neg87.2%

        \[\leadsto x \cdot \left(1 + \color{blue}{\left(-\frac{z}{t}\right)}\right) \]
      2. unsub-neg87.2%

        \[\leadsto x \cdot \color{blue}{\left(1 - \frac{z}{t}\right)} \]
    4. Simplified87.2%

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

    if 4.05000000000000015e-35 < y

    1. Initial program 95.3%

      \[x + \left(y - x\right) \cdot \frac{z}{t} \]
    2. Taylor expanded in y around inf 81.9%

      \[\leadsto x + \color{blue}{\frac{y \cdot z}{t}} \]
    3. Step-by-step derivation
      1. associate-*r/80.9%

        \[\leadsto x + \color{blue}{y \cdot \frac{z}{t}} \]
    4. Simplified80.9%

      \[\leadsto x + \color{blue}{y \cdot \frac{z}{t}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification86.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.3 \cdot 10^{+19}:\\ \;\;\;\;x + \frac{y}{\frac{t}{z}}\\ \mathbf{elif}\;y \leq 4.05 \cdot 10^{-35}:\\ \;\;\;\;x \cdot \left(1 - \frac{z}{t}\right)\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot \frac{z}{t}\\ \end{array} \]

Alternative 12: 97.8% accurate, 1.0× speedup?

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

\\
x + \left(y - x\right) \cdot \frac{z}{t}
\end{array}
Derivation
  1. Initial program 96.5%

    \[x + \left(y - x\right) \cdot \frac{z}{t} \]
  2. Final simplification96.5%

    \[\leadsto x + \left(y - x\right) \cdot \frac{z}{t} \]

Alternative 13: 37.7% accurate, 9.0× speedup?

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

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

    \[x + \left(y - x\right) \cdot \frac{z}{t} \]
  2. Taylor expanded in z around 0 34.8%

    \[\leadsto \color{blue}{x} \]
  3. Final simplification34.8%

    \[\leadsto x \]

Developer target: 97.6% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(y - x\right) \cdot \frac{z}{t}\\ t_2 := x + \frac{y - x}{\frac{t}{z}}\\ \mathbf{if}\;t_1 < -1013646692435.8867:\\ \;\;\;\;t_2\\ \mathbf{elif}\;t_1 < 0:\\ \;\;\;\;x + \frac{\left(y - x\right) \cdot z}{t}\\ \mathbf{else}:\\ \;\;\;\;t_2\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (* (- y x) (/ z t))) (t_2 (+ x (/ (- y x) (/ t z)))))
   (if (< t_1 -1013646692435.8867)
     t_2
     (if (< t_1 0.0) (+ x (/ (* (- y x) z) t)) t_2))))
double code(double x, double y, double z, double t) {
	double t_1 = (y - x) * (z / t);
	double t_2 = x + ((y - x) / (t / z));
	double tmp;
	if (t_1 < -1013646692435.8867) {
		tmp = t_2;
	} else if (t_1 < 0.0) {
		tmp = x + (((y - x) * z) / t);
	} else {
		tmp = t_2;
	}
	return tmp;
}
real(8) function code(x, y, z, t)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (y - x) * (z / t)
    t_2 = x + ((y - x) / (t / z))
    if (t_1 < (-1013646692435.8867d0)) then
        tmp = t_2
    else if (t_1 < 0.0d0) then
        tmp = x + (((y - x) * z) / t)
    else
        tmp = t_2
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t) {
	double t_1 = (y - x) * (z / t);
	double t_2 = x + ((y - x) / (t / z));
	double tmp;
	if (t_1 < -1013646692435.8867) {
		tmp = t_2;
	} else if (t_1 < 0.0) {
		tmp = x + (((y - x) * z) / t);
	} else {
		tmp = t_2;
	}
	return tmp;
}
def code(x, y, z, t):
	t_1 = (y - x) * (z / t)
	t_2 = x + ((y - x) / (t / z))
	tmp = 0
	if t_1 < -1013646692435.8867:
		tmp = t_2
	elif t_1 < 0.0:
		tmp = x + (((y - x) * z) / t)
	else:
		tmp = t_2
	return tmp
function code(x, y, z, t)
	t_1 = Float64(Float64(y - x) * Float64(z / t))
	t_2 = Float64(x + Float64(Float64(y - x) / Float64(t / z)))
	tmp = 0.0
	if (t_1 < -1013646692435.8867)
		tmp = t_2;
	elseif (t_1 < 0.0)
		tmp = Float64(x + Float64(Float64(Float64(y - x) * z) / t));
	else
		tmp = t_2;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t)
	t_1 = (y - x) * (z / t);
	t_2 = x + ((y - x) / (t / z));
	tmp = 0.0;
	if (t_1 < -1013646692435.8867)
		tmp = t_2;
	elseif (t_1 < 0.0)
		tmp = x + (((y - x) * z) / t);
	else
		tmp = t_2;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(N[(y - x), $MachinePrecision] * N[(z / t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(x + N[(N[(y - x), $MachinePrecision] / N[(t / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t$95$1, -1013646692435.8867], t$95$2, If[Less[t$95$1, 0.0], N[(x + N[(N[(N[(y - x), $MachinePrecision] * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], t$95$2]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(y - x\right) \cdot \frac{z}{t}\\
t_2 := x + \frac{y - x}{\frac{t}{z}}\\
\mathbf{if}\;t_1 < -1013646692435.8867:\\
\;\;\;\;t_2\\

\mathbf{elif}\;t_1 < 0:\\
\;\;\;\;x + \frac{\left(y - x\right) \cdot z}{t}\\

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


\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2023320 
(FPCore (x y z t)
  :name "Graphics.Rendering.Plot.Render.Plot.Axis:tickPosition from plot-0.2.3.4"
  :precision binary64

  :herbie-target
  (if (< (* (- y x) (/ z t)) -1013646692435.8867) (+ x (/ (- y x) (/ t z))) (if (< (* (- y x) (/ z t)) 0.0) (+ x (/ (* (- y x) z) t)) (+ x (/ (- y x) (/ t z)))))

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