Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTicks from plot-0.2.3.4, B

Percentage Accurate: 85.7% → 98.3%
Time: 8.3s
Alternatives: 10
Speedup: 1.1×

Specification

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

\\
x + \frac{y \cdot \left(z - t\right)}{a - 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 10 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: 85.7% accurate, 1.0× speedup?

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

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

Alternative 1: 98.3% accurate, 0.8× speedup?

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

\\
\frac{y}{\frac{a - t}{z - t}} + x
\end{array}
Derivation
  1. Initial program 85.8%

    \[x + \frac{y \cdot \left(z - t\right)}{a - t} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-/.f64N/A

      \[\leadsto x + \color{blue}{\frac{y \cdot \left(z - t\right)}{a - t}} \]
    2. lift-*.f64N/A

      \[\leadsto x + \frac{\color{blue}{y \cdot \left(z - t\right)}}{a - t} \]
    3. associate-/l*N/A

      \[\leadsto x + \color{blue}{y \cdot \frac{z - t}{a - t}} \]
    4. clear-numN/A

      \[\leadsto x + y \cdot \color{blue}{\frac{1}{\frac{a - t}{z - t}}} \]
    5. un-div-invN/A

      \[\leadsto x + \color{blue}{\frac{y}{\frac{a - t}{z - t}}} \]
    6. lower-/.f64N/A

      \[\leadsto x + \color{blue}{\frac{y}{\frac{a - t}{z - t}}} \]
    7. lower-/.f6498.4

      \[\leadsto x + \frac{y}{\color{blue}{\frac{a - t}{z - t}}} \]
  4. Applied rewrites98.4%

    \[\leadsto x + \color{blue}{\frac{y}{\frac{a - t}{z - t}}} \]
  5. Final simplification98.4%

    \[\leadsto \frac{y}{\frac{a - t}{z - t}} + x \]
  6. Add Preprocessing

Alternative 2: 82.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\ \mathbf{if}\;t \leq -1.26 \cdot 10^{+35}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 1.1 \cdot 10^{+56}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z - t}{a}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (fma (- 1.0 (/ z t)) y x)))
   (if (<= t -1.26e+35) t_1 (if (<= t 1.1e+56) (fma (/ (- z t) a) y x) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = fma((1.0 - (z / t)), y, x);
	double tmp;
	if (t <= -1.26e+35) {
		tmp = t_1;
	} else if (t <= 1.1e+56) {
		tmp = fma(((z - t) / a), y, x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = fma(Float64(1.0 - Float64(z / t)), y, x)
	tmp = 0.0
	if (t <= -1.26e+35)
		tmp = t_1;
	elseif (t <= 1.1e+56)
		tmp = fma(Float64(Float64(z - t) / a), y, x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[t, -1.26e+35], t$95$1, If[LessEqual[t, 1.1e+56], N[(N[(N[(z - t), $MachinePrecision] / a), $MachinePrecision] * y + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
\mathbf{if}\;t \leq -1.26 \cdot 10^{+35}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq 1.1 \cdot 10^{+56}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z - t}{a}, y, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.26e35 or 1.10000000000000008e56 < t

    1. Initial program 74.5%

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

      \[\leadsto \color{blue}{x + -1 \cdot \frac{y \cdot \left(z - t\right)}{t}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot \left(z - t\right)}{t} + x} \]
      2. mul-1-negN/A

        \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\frac{y \cdot \left(z - t\right)}{t}\right)\right)} + x \]
      3. associate-/l*N/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{y \cdot \frac{z - t}{t}}\right)\right) + x \]
      4. *-commutativeN/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\frac{z - t}{t} \cdot y}\right)\right) + x \]
      5. distribute-lft-neg-inN/A

        \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\frac{z - t}{t}\right)\right) \cdot y} + x \]
      6. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\mathsf{neg}\left(\frac{z - t}{t}\right), y, x\right)} \]
      7. neg-sub0N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{0 - \frac{z - t}{t}}, y, x\right) \]
      8. div-subN/A

        \[\leadsto \mathsf{fma}\left(0 - \color{blue}{\left(\frac{z}{t} - \frac{t}{t}\right)}, y, x\right) \]
      9. *-inversesN/A

        \[\leadsto \mathsf{fma}\left(0 - \left(\frac{z}{t} - \color{blue}{1}\right), y, x\right) \]
      10. associate-+l-N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\left(0 - \frac{z}{t}\right) + 1}, y, x\right) \]
      11. neg-sub0N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)} + 1, y, x\right) \]
      12. mul-1-negN/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{-1 \cdot \frac{z}{t}} + 1, y, x\right) \]
      13. +-commutativeN/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{1 + -1 \cdot \frac{z}{t}}, y, x\right) \]
      14. mul-1-negN/A

        \[\leadsto \mathsf{fma}\left(1 + \color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)}, y, x\right) \]
      15. unsub-negN/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
      16. lower--.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
      17. lower-/.f6495.2

        \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{z}{t}}, y, x\right) \]
    5. Applied rewrites95.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)} \]

    if -1.26e35 < t < 1.10000000000000008e56

    1. Initial program 93.1%

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

      \[\leadsto \color{blue}{x + \frac{y \cdot \left(z - t\right)}{a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{y \cdot \left(z - t\right)}{a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{y \cdot \frac{z - t}{a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z - t}{a} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{a}, y, x\right)} \]
      5. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z - t}{a}}, y, x\right) \]
      6. lower--.f6481.0

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{z - t}}{a}, y, x\right) \]
    5. Applied rewrites81.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{a}, y, x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 3: 82.4% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\ \mathbf{if}\;t \leq -2.7 \cdot 10^{-39}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 6.5 \cdot 10^{-77}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{a}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (let* ((t_1 (fma (- 1.0 (/ z t)) y x)))
   (if (<= t -2.7e-39) t_1 (if (<= t 6.5e-77) (fma (/ z a) y x) t_1))))
double code(double x, double y, double z, double t, double a) {
	double t_1 = fma((1.0 - (z / t)), y, x);
	double tmp;
	if (t <= -2.7e-39) {
		tmp = t_1;
	} else if (t <= 6.5e-77) {
		tmp = fma((z / a), y, x);
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(x, y, z, t, a)
	t_1 = fma(Float64(1.0 - Float64(z / t)), y, x)
	tmp = 0.0
	if (t <= -2.7e-39)
		tmp = t_1;
	elseif (t <= 6.5e-77)
		tmp = fma(Float64(z / a), y, x);
	else
		tmp = t_1;
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[t, -2.7e-39], t$95$1, If[LessEqual[t, 6.5e-77], N[(N[(z / a), $MachinePrecision] * y + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
\mathbf{if}\;t \leq -2.7 \cdot 10^{-39}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq 6.5 \cdot 10^{-77}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z}{a}, y, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -2.7000000000000001e-39 or 6.4999999999999999e-77 < t

    1. Initial program 80.1%

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

      \[\leadsto \color{blue}{x + -1 \cdot \frac{y \cdot \left(z - t\right)}{t}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{-1 \cdot \frac{y \cdot \left(z - t\right)}{t} + x} \]
      2. mul-1-negN/A

        \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\frac{y \cdot \left(z - t\right)}{t}\right)\right)} + x \]
      3. associate-/l*N/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{y \cdot \frac{z - t}{t}}\right)\right) + x \]
      4. *-commutativeN/A

        \[\leadsto \left(\mathsf{neg}\left(\color{blue}{\frac{z - t}{t} \cdot y}\right)\right) + x \]
      5. distribute-lft-neg-inN/A

        \[\leadsto \color{blue}{\left(\mathsf{neg}\left(\frac{z - t}{t}\right)\right) \cdot y} + x \]
      6. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\mathsf{neg}\left(\frac{z - t}{t}\right), y, x\right)} \]
      7. neg-sub0N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{0 - \frac{z - t}{t}}, y, x\right) \]
      8. div-subN/A

        \[\leadsto \mathsf{fma}\left(0 - \color{blue}{\left(\frac{z}{t} - \frac{t}{t}\right)}, y, x\right) \]
      9. *-inversesN/A

        \[\leadsto \mathsf{fma}\left(0 - \left(\frac{z}{t} - \color{blue}{1}\right), y, x\right) \]
      10. associate-+l-N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\left(0 - \frac{z}{t}\right) + 1}, y, x\right) \]
      11. neg-sub0N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)} + 1, y, x\right) \]
      12. mul-1-negN/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{-1 \cdot \frac{z}{t}} + 1, y, x\right) \]
      13. +-commutativeN/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{1 + -1 \cdot \frac{z}{t}}, y, x\right) \]
      14. mul-1-negN/A

        \[\leadsto \mathsf{fma}\left(1 + \color{blue}{\left(\mathsf{neg}\left(\frac{z}{t}\right)\right)}, y, x\right) \]
      15. unsub-negN/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
      16. lower--.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{1 - \frac{z}{t}}, y, x\right) \]
      17. lower-/.f6484.1

        \[\leadsto \mathsf{fma}\left(1 - \color{blue}{\frac{z}{t}}, y, x\right) \]
    5. Applied rewrites84.1%

      \[\leadsto \color{blue}{\mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)} \]

    if -2.7000000000000001e-39 < t < 6.4999999999999999e-77

    1. Initial program 94.2%

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

      \[\leadsto \color{blue}{x + \frac{y \cdot z}{a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z}{a} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{a}, y, x\right)} \]
      5. lower-/.f6479.5

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{a}}, y, x\right) \]
    5. Applied rewrites79.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{a}, y, x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 4: 77.4% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.55 \cdot 10^{+35}:\\ \;\;\;\;y + x\\ \mathbf{elif}\;t \leq 5.2 \cdot 10^{+29}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{a}, y, x\right)\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= t -1.55e+35) (+ y x) (if (<= t 5.2e+29) (fma (/ z a) y x) (+ y x))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (t <= -1.55e+35) {
		tmp = y + x;
	} else if (t <= 5.2e+29) {
		tmp = fma((z / a), y, x);
	} else {
		tmp = y + x;
	}
	return tmp;
}
function code(x, y, z, t, a)
	tmp = 0.0
	if (t <= -1.55e+35)
		tmp = Float64(y + x);
	elseif (t <= 5.2e+29)
		tmp = fma(Float64(z / a), y, x);
	else
		tmp = Float64(y + x);
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := If[LessEqual[t, -1.55e+35], N[(y + x), $MachinePrecision], If[LessEqual[t, 5.2e+29], N[(N[(z / a), $MachinePrecision] * y + x), $MachinePrecision], N[(y + x), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.55 \cdot 10^{+35}:\\
\;\;\;\;y + x\\

\mathbf{elif}\;t \leq 5.2 \cdot 10^{+29}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z}{a}, y, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.54999999999999993e35 or 5.2e29 < t

    1. Initial program 75.5%

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

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{y + x} \]
      2. lower-+.f6485.2

        \[\leadsto \color{blue}{y + x} \]
    5. Applied rewrites85.2%

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

    if -1.54999999999999993e35 < t < 5.2e29

    1. Initial program 92.9%

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

      \[\leadsto \color{blue}{x + \frac{y \cdot z}{a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z}{a} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{a}, y, x\right)} \]
      5. lower-/.f6472.2

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{a}}, y, x\right) \]
    5. Applied rewrites72.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{a}, y, x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 5: 77.2% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.55 \cdot 10^{+35}:\\ \;\;\;\;y + x\\ \mathbf{elif}\;t \leq 5.2 \cdot 10^{+29}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{a}, z, x\right)\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= t -1.55e+35) (+ y x) (if (<= t 5.2e+29) (fma (/ y a) z x) (+ y x))))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (t <= -1.55e+35) {
		tmp = y + x;
	} else if (t <= 5.2e+29) {
		tmp = fma((y / a), z, x);
	} else {
		tmp = y + x;
	}
	return tmp;
}
function code(x, y, z, t, a)
	tmp = 0.0
	if (t <= -1.55e+35)
		tmp = Float64(y + x);
	elseif (t <= 5.2e+29)
		tmp = fma(Float64(y / a), z, x);
	else
		tmp = Float64(y + x);
	end
	return tmp
end
code[x_, y_, z_, t_, a_] := If[LessEqual[t, -1.55e+35], N[(y + x), $MachinePrecision], If[LessEqual[t, 5.2e+29], N[(N[(y / a), $MachinePrecision] * z + x), $MachinePrecision], N[(y + x), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.55 \cdot 10^{+35}:\\
\;\;\;\;y + x\\

\mathbf{elif}\;t \leq 5.2 \cdot 10^{+29}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{a}, z, x\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.54999999999999993e35 or 5.2e29 < t

    1. Initial program 75.5%

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

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{y + x} \]
      2. lower-+.f6485.2

        \[\leadsto \color{blue}{y + x} \]
    5. Applied rewrites85.2%

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

    if -1.54999999999999993e35 < t < 5.2e29

    1. Initial program 92.9%

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

      \[\leadsto \color{blue}{x + \frac{y \cdot z}{a}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{a} + x} \]
      2. associate-/l*N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{a}} + x \]
      3. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z}{a} \cdot y} + x \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{a}, y, x\right)} \]
      5. lower-/.f6472.2

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{a}}, y, x\right) \]
    5. Applied rewrites72.2%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{a}, y, x\right)} \]
    6. Taylor expanded in t around 0

      \[\leadsto \color{blue}{x + \frac{y \cdot z}{a}} \]
    7. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{y \cdot z}{a} + x} \]
      2. associate-*l/N/A

        \[\leadsto \color{blue}{\frac{y}{a} \cdot z} + x \]
      3. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, z, x\right)} \]
      4. lower-/.f6471.5

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{y}{a}}, z, x\right) \]
    8. Applied rewrites71.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{a}, z, x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 6: 98.1% accurate, 1.1× speedup?

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

\\
\mathsf{fma}\left(\frac{z - t}{a - t}, y, x\right)
\end{array}
Derivation
  1. Initial program 85.8%

    \[x + \frac{y \cdot \left(z - t\right)}{a - t} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-+.f64N/A

      \[\leadsto \color{blue}{x + \frac{y \cdot \left(z - t\right)}{a - t}} \]
    2. +-commutativeN/A

      \[\leadsto \color{blue}{\frac{y \cdot \left(z - t\right)}{a - t} + x} \]
    3. lift-/.f64N/A

      \[\leadsto \color{blue}{\frac{y \cdot \left(z - t\right)}{a - t}} + x \]
    4. lift-*.f64N/A

      \[\leadsto \frac{\color{blue}{y \cdot \left(z - t\right)}}{a - t} + x \]
    5. associate-/l*N/A

      \[\leadsto \color{blue}{y \cdot \frac{z - t}{a - t}} + x \]
    6. *-commutativeN/A

      \[\leadsto \color{blue}{\frac{z - t}{a - t} \cdot y} + x \]
    7. lower-fma.f64N/A

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{a - t}, y, x\right)} \]
    8. lower-/.f6498.4

      \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z - t}{a - t}}, y, x\right) \]
  4. Applied rewrites98.4%

    \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z - t}{a - t}, y, x\right)} \]
  5. Add Preprocessing

Alternative 7: 60.8% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 1.2 \cdot 10^{+177}:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{a} \cdot y\\ \end{array} \end{array} \]
(FPCore (x y z t a)
 :precision binary64
 (if (<= y 1.2e+177) (+ y x) (* (/ z a) y)))
double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (y <= 1.2e+177) {
		tmp = y + x;
	} else {
		tmp = (z / a) * y;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a)
    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) :: tmp
    if (y <= 1.2d+177) then
        tmp = y + x
    else
        tmp = (z / a) * y
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
	double tmp;
	if (y <= 1.2e+177) {
		tmp = y + x;
	} else {
		tmp = (z / a) * y;
	}
	return tmp;
}
def code(x, y, z, t, a):
	tmp = 0
	if y <= 1.2e+177:
		tmp = y + x
	else:
		tmp = (z / a) * y
	return tmp
function code(x, y, z, t, a)
	tmp = 0.0
	if (y <= 1.2e+177)
		tmp = Float64(y + x);
	else
		tmp = Float64(Float64(z / a) * y);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a)
	tmp = 0.0;
	if (y <= 1.2e+177)
		tmp = y + x;
	else
		tmp = (z / a) * y;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_] := If[LessEqual[y, 1.2e+177], N[(y + x), $MachinePrecision], N[(N[(z / a), $MachinePrecision] * y), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq 1.2 \cdot 10^{+177}:\\
\;\;\;\;y + x\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 1.2e177

    1. Initial program 86.3%

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

      \[\leadsto \color{blue}{x + y} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{y + x} \]
      2. lower-+.f6465.5

        \[\leadsto \color{blue}{y + x} \]
    5. Applied rewrites65.5%

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

    if 1.2e177 < y

    1. Initial program 81.0%

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

      \[\leadsto \color{blue}{\frac{y \cdot z}{a - t}} \]
    4. Step-by-step derivation
      1. associate-/l*N/A

        \[\leadsto \color{blue}{y \cdot \frac{z}{a - t}} \]
      2. *-commutativeN/A

        \[\leadsto \color{blue}{\frac{z}{a - t} \cdot y} \]
      3. lower-*.f64N/A

        \[\leadsto \color{blue}{\frac{z}{a - t} \cdot y} \]
      4. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{z}{a - t}} \cdot y \]
      5. lower--.f6467.4

        \[\leadsto \frac{z}{\color{blue}{a - t}} \cdot y \]
    5. Applied rewrites67.4%

      \[\leadsto \color{blue}{\frac{z}{a - t} \cdot y} \]
    6. Taylor expanded in a around inf

      \[\leadsto \frac{z}{a} \cdot y \]
    7. Step-by-step derivation
      1. Applied rewrites63.4%

        \[\leadsto \frac{z}{a} \cdot y \]
    8. Recombined 2 regimes into one program.
    9. Add Preprocessing

    Alternative 8: 60.6% accurate, 1.1× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 1.2 \cdot 10^{+177}:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;\frac{y}{a} \cdot z\\ \end{array} \end{array} \]
    (FPCore (x y z t a)
     :precision binary64
     (if (<= y 1.2e+177) (+ y x) (* (/ y a) z)))
    double code(double x, double y, double z, double t, double a) {
    	double tmp;
    	if (y <= 1.2e+177) {
    		tmp = y + x;
    	} else {
    		tmp = (y / a) * z;
    	}
    	return tmp;
    }
    
    real(8) function code(x, y, z, t, a)
        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) :: tmp
        if (y <= 1.2d+177) then
            tmp = y + x
        else
            tmp = (y / a) * z
        end if
        code = tmp
    end function
    
    public static double code(double x, double y, double z, double t, double a) {
    	double tmp;
    	if (y <= 1.2e+177) {
    		tmp = y + x;
    	} else {
    		tmp = (y / a) * z;
    	}
    	return tmp;
    }
    
    def code(x, y, z, t, a):
    	tmp = 0
    	if y <= 1.2e+177:
    		tmp = y + x
    	else:
    		tmp = (y / a) * z
    	return tmp
    
    function code(x, y, z, t, a)
    	tmp = 0.0
    	if (y <= 1.2e+177)
    		tmp = Float64(y + x);
    	else
    		tmp = Float64(Float64(y / a) * z);
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y, z, t, a)
    	tmp = 0.0;
    	if (y <= 1.2e+177)
    		tmp = y + x;
    	else
    		tmp = (y / a) * z;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_, z_, t_, a_] := If[LessEqual[y, 1.2e+177], N[(y + x), $MachinePrecision], N[(N[(y / a), $MachinePrecision] * z), $MachinePrecision]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;y \leq 1.2 \cdot 10^{+177}:\\
    \;\;\;\;y + x\\
    
    \mathbf{else}:\\
    \;\;\;\;\frac{y}{a} \cdot z\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if y < 1.2e177

      1. Initial program 86.3%

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

        \[\leadsto \color{blue}{x + y} \]
      4. Step-by-step derivation
        1. +-commutativeN/A

          \[\leadsto \color{blue}{y + x} \]
        2. lower-+.f6465.5

          \[\leadsto \color{blue}{y + x} \]
      5. Applied rewrites65.5%

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

      if 1.2e177 < y

      1. Initial program 81.0%

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

        \[\leadsto \color{blue}{x + y} \]
      4. Step-by-step derivation
        1. +-commutativeN/A

          \[\leadsto \color{blue}{y + x} \]
        2. lower-+.f6417.4

          \[\leadsto \color{blue}{y + x} \]
      5. Applied rewrites17.4%

        \[\leadsto \color{blue}{y + x} \]
      6. Taylor expanded in z around inf

        \[\leadsto \color{blue}{\frac{y \cdot z}{a - t}} \]
      7. Step-by-step derivation
        1. associate-*l/N/A

          \[\leadsto \color{blue}{\frac{y}{a - t} \cdot z} \]
        2. lower-*.f64N/A

          \[\leadsto \color{blue}{\frac{y}{a - t} \cdot z} \]
        3. lower-/.f64N/A

          \[\leadsto \color{blue}{\frac{y}{a - t}} \cdot z \]
        4. lower--.f6457.8

          \[\leadsto \frac{y}{\color{blue}{a - t}} \cdot z \]
      8. Applied rewrites57.8%

        \[\leadsto \color{blue}{\frac{y}{a - t} \cdot z} \]
      9. Taylor expanded in a around inf

        \[\leadsto \frac{y}{a} \cdot z \]
      10. Step-by-step derivation
        1. Applied rewrites53.4%

          \[\leadsto \frac{y}{a} \cdot z \]
      11. Recombined 2 regimes into one program.
      12. Add Preprocessing

      Alternative 9: 60.1% accurate, 1.1× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 1.2 \cdot 10^{+177}:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;\frac{z \cdot y}{a}\\ \end{array} \end{array} \]
      (FPCore (x y z t a)
       :precision binary64
       (if (<= y 1.2e+177) (+ y x) (/ (* z y) a)))
      double code(double x, double y, double z, double t, double a) {
      	double tmp;
      	if (y <= 1.2e+177) {
      		tmp = y + x;
      	} else {
      		tmp = (z * y) / a;
      	}
      	return tmp;
      }
      
      real(8) function code(x, y, z, t, a)
          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) :: tmp
          if (y <= 1.2d+177) then
              tmp = y + x
          else
              tmp = (z * y) / a
          end if
          code = tmp
      end function
      
      public static double code(double x, double y, double z, double t, double a) {
      	double tmp;
      	if (y <= 1.2e+177) {
      		tmp = y + x;
      	} else {
      		tmp = (z * y) / a;
      	}
      	return tmp;
      }
      
      def code(x, y, z, t, a):
      	tmp = 0
      	if y <= 1.2e+177:
      		tmp = y + x
      	else:
      		tmp = (z * y) / a
      	return tmp
      
      function code(x, y, z, t, a)
      	tmp = 0.0
      	if (y <= 1.2e+177)
      		tmp = Float64(y + x);
      	else
      		tmp = Float64(Float64(z * y) / a);
      	end
      	return tmp
      end
      
      function tmp_2 = code(x, y, z, t, a)
      	tmp = 0.0;
      	if (y <= 1.2e+177)
      		tmp = y + x;
      	else
      		tmp = (z * y) / a;
      	end
      	tmp_2 = tmp;
      end
      
      code[x_, y_, z_, t_, a_] := If[LessEqual[y, 1.2e+177], N[(y + x), $MachinePrecision], N[(N[(z * y), $MachinePrecision] / a), $MachinePrecision]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;y \leq 1.2 \cdot 10^{+177}:\\
      \;\;\;\;y + x\\
      
      \mathbf{else}:\\
      \;\;\;\;\frac{z \cdot y}{a}\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if y < 1.2e177

        1. Initial program 86.3%

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

          \[\leadsto \color{blue}{x + y} \]
        4. Step-by-step derivation
          1. +-commutativeN/A

            \[\leadsto \color{blue}{y + x} \]
          2. lower-+.f6465.5

            \[\leadsto \color{blue}{y + x} \]
        5. Applied rewrites65.5%

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

        if 1.2e177 < y

        1. Initial program 81.0%

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

          \[\leadsto \color{blue}{\frac{y \cdot z}{a - t}} \]
        4. Step-by-step derivation
          1. associate-/l*N/A

            \[\leadsto \color{blue}{y \cdot \frac{z}{a - t}} \]
          2. *-commutativeN/A

            \[\leadsto \color{blue}{\frac{z}{a - t} \cdot y} \]
          3. lower-*.f64N/A

            \[\leadsto \color{blue}{\frac{z}{a - t} \cdot y} \]
          4. lower-/.f64N/A

            \[\leadsto \color{blue}{\frac{z}{a - t}} \cdot y \]
          5. lower--.f6467.4

            \[\leadsto \frac{z}{\color{blue}{a - t}} \cdot y \]
        5. Applied rewrites67.4%

          \[\leadsto \color{blue}{\frac{z}{a - t} \cdot y} \]
        6. Taylor expanded in a around inf

          \[\leadsto \frac{y \cdot z}{\color{blue}{a}} \]
        7. Step-by-step derivation
          1. Applied rewrites49.2%

            \[\leadsto \frac{z \cdot y}{\color{blue}{a}} \]
        8. Recombined 2 regimes into one program.
        9. Add Preprocessing

        Alternative 10: 60.9% accurate, 6.5× speedup?

        \[\begin{array}{l} \\ y + x \end{array} \]
        (FPCore (x y z t a) :precision binary64 (+ y x))
        double code(double x, double y, double z, double t, double a) {
        	return y + x;
        }
        
        real(8) function code(x, y, z, t, a)
            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
            code = y + x
        end function
        
        public static double code(double x, double y, double z, double t, double a) {
        	return y + x;
        }
        
        def code(x, y, z, t, a):
        	return y + x
        
        function code(x, y, z, t, a)
        	return Float64(y + x)
        end
        
        function tmp = code(x, y, z, t, a)
        	tmp = y + x;
        end
        
        code[x_, y_, z_, t_, a_] := N[(y + x), $MachinePrecision]
        
        \begin{array}{l}
        
        \\
        y + x
        \end{array}
        
        Derivation
        1. Initial program 85.8%

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

          \[\leadsto \color{blue}{x + y} \]
        4. Step-by-step derivation
          1. +-commutativeN/A

            \[\leadsto \color{blue}{y + x} \]
          2. lower-+.f6461.8

            \[\leadsto \color{blue}{y + x} \]
        5. Applied rewrites61.8%

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

        Developer Target 1: 98.3% accurate, 0.8× speedup?

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

        Reproduce

        ?
        herbie shell --seed 2024255 
        (FPCore (x y z t a)
          :name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTicks from plot-0.2.3.4, B"
          :precision binary64
        
          :alt
          (! :herbie-platform default (+ x (/ y (/ (- a t) (- z t)))))
        
          (+ x (/ (* y (- z t)) (- a t))))