Graphics.Rasterific.Svg.PathConverter:arcToSegments from rasterific-svg-0.2.3.1

Percentage Accurate: 66.3% → 99.7%
Time: 9.3s
Alternatives: 12
Speedup: 0.8×

Specification

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

\\
\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot 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 12 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: 66.3% accurate, 1.0× speedup?

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

\\
\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t}
\end{array}

Alternative 1: 99.7% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right) \end{array} \]
(FPCore (x y z t) :precision binary64 (fma (/ z t) (/ z t) (pow (/ x y) 2.0)))
double code(double x, double y, double z, double t) {
	return fma((z / t), (z / t), pow((x / y), 2.0));
}
function code(x, y, z, t)
	return fma(Float64(z / t), Float64(z / t), (Float64(x / y) ^ 2.0))
end
code[x_, y_, z_, t_] := N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision] + N[Power[N[(x / y), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)
\end{array}
Derivation
  1. Initial program 59.9%

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

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

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

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

      \[\leadsto \frac{\color{blue}{z \cdot z}}{t \cdot t} + \frac{x \cdot x}{y \cdot y} \]
    5. lift-*.f64N/A

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

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

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

      \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{t}}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right) \]
    9. lower-/.f6482.2

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

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
    11. lift-*.f64N/A

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
    12. lift-*.f64N/A

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

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{y} \cdot \frac{x}{y}}\right) \]
    14. pow2N/A

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
    15. lower-pow.f64N/A

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
    16. lower-/.f6499.6

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\color{blue}{\left(\frac{x}{y}\right)}}^{2}\right) \]
  4. Applied rewrites99.6%

    \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)} \]
  5. Add Preprocessing

Alternative 2: 95.5% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\frac{x \cdot x}{y \cdot y} \leq 5 \cdot 10^{+301}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y \cdot y} \cdot x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \frac{\frac{x}{y}}{y} \cdot x\right)\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (if (<= (/ (* x x) (* y y)) 5e+301)
   (fma (/ z t) (/ z t) (* (/ x (* y y)) x))
   (fma (/ (/ z t) t) z (* (/ (/ x y) y) x))))
double code(double x, double y, double z, double t) {
	double tmp;
	if (((x * x) / (y * y)) <= 5e+301) {
		tmp = fma((z / t), (z / t), ((x / (y * y)) * x));
	} else {
		tmp = fma(((z / t) / t), z, (((x / y) / y) * x));
	}
	return tmp;
}
function code(x, y, z, t)
	tmp = 0.0
	if (Float64(Float64(x * x) / Float64(y * y)) <= 5e+301)
		tmp = fma(Float64(z / t), Float64(z / t), Float64(Float64(x / Float64(y * y)) * x));
	else
		tmp = fma(Float64(Float64(z / t) / t), z, Float64(Float64(Float64(x / y) / y) * x));
	end
	return tmp
end
code[x_, y_, z_, t_] := If[LessEqual[N[(N[(x * x), $MachinePrecision] / N[(y * y), $MachinePrecision]), $MachinePrecision], 5e+301], N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision] + N[(N[(x / N[(y * y), $MachinePrecision]), $MachinePrecision] * x), $MachinePrecision]), $MachinePrecision], N[(N[(N[(z / t), $MachinePrecision] / t), $MachinePrecision] * z + N[(N[(N[(x / y), $MachinePrecision] / y), $MachinePrecision] * x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\frac{x \cdot x}{y \cdot y} \leq 5 \cdot 10^{+301}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y \cdot y} \cdot x\right)\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \frac{\frac{x}{y}}{y} \cdot x\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 x x) (*.f64 y y)) < 5.0000000000000004e301

    1. Initial program 63.5%

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

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

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

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

        \[\leadsto \frac{\color{blue}{z \cdot z}}{t \cdot t} + \frac{x \cdot x}{y \cdot y} \]
      5. lift-*.f64N/A

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

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

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

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{t}}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right) \]
      9. lower-/.f6495.0

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
      11. lift-*.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
      12. lift-*.f64N/A

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{y} \cdot \frac{x}{y}}\right) \]
      14. pow2N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      15. lower-pow.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      16. lower-/.f6499.5

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\color{blue}{\left(\frac{x}{y}\right)}}^{2}\right) \]
    4. Applied rewrites99.5%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)} \]
    5. Step-by-step derivation
      1. lift-pow.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      2. unpow2N/A

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y} \cdot \color{blue}{\frac{x}{y}}\right) \]
      4. clear-numN/A

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

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

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

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\frac{y}{x} \cdot y}}\right) \]
      10. lower-*.f6498.6

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\color{blue}{\frac{y}{x} \cdot y}}\right) \]
    6. Applied rewrites98.6%

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\frac{y}{x} \cdot y}}\right) \]
    7. Step-by-step derivation
      1. lift-/.f64N/A

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

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

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\frac{\color{blue}{y \cdot y}}{x}}\right) \]
      6. frac-2negN/A

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\frac{\mathsf{neg}\left(y \cdot y\right)}{\color{blue}{-x}}}\right) \]
      8. associate-/r/N/A

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\mathsf{neg}\left(y \cdot y\right)}} \cdot \left(-x\right)\right) \]
      11. lift-*.f64N/A

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot y}} \cdot \left(-x\right)\right) \]
      14. lower-neg.f6498.7

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\color{blue}{\left(-y\right)} \cdot y} \cdot \left(-x\right)\right) \]
    8. Applied rewrites98.7%

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

    if 5.0000000000000004e301 < (/.f64 (*.f64 x x) (*.f64 y y))

    1. Initial program 55.1%

      \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0

      \[\leadsto \color{blue}{\frac{{x}^{2}}{{y}^{2}} + \frac{{z}^{2}}{{t}^{2}}} \]
    4. Step-by-step derivation
      1. +-commutativeN/A

        \[\leadsto \color{blue}{\frac{{z}^{2}}{{t}^{2}} + \frac{{x}^{2}}{{y}^{2}}} \]
      2. unpow2N/A

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

        \[\leadsto \color{blue}{\frac{z}{{t}^{2}} \cdot z} + \frac{{x}^{2}}{{y}^{2}} \]
      4. lower-fma.f64N/A

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{{t}^{2}}, z, \frac{{x}^{2}}{{y}^{2}}\right)} \]
      5. unpow2N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{\color{blue}{t \cdot t}}, z, \frac{{x}^{2}}{{y}^{2}}\right) \]
      6. associate-/r*N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{\frac{z}{t}}{t}}, z, \frac{{x}^{2}}{{y}^{2}}\right) \]
      7. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{\frac{z}{t}}{t}}, z, \frac{{x}^{2}}{{y}^{2}}\right) \]
      8. lower-/.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{\color{blue}{\frac{z}{t}}}{t}, z, \frac{{x}^{2}}{{y}^{2}}\right) \]
      9. unpow2N/A

        \[\leadsto \mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \frac{\color{blue}{x \cdot x}}{{y}^{2}}\right) \]
      10. associate-*l/N/A

        \[\leadsto \mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \color{blue}{\frac{x}{{y}^{2}} \cdot x}\right) \]
      11. lower-*.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \color{blue}{\frac{x}{{y}^{2}} \cdot x}\right) \]
      12. unpow2N/A

        \[\leadsto \mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \frac{x}{\color{blue}{y \cdot y}} \cdot x\right) \]
      13. associate-/r*N/A

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

        \[\leadsto \mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \color{blue}{\frac{\frac{x}{y}}{y}} \cdot x\right) \]
      15. lower-/.f6494.7

        \[\leadsto \mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \frac{\color{blue}{\frac{x}{y}}}{y} \cdot x\right) \]
    5. Applied rewrites94.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \frac{\frac{x}{y}}{y} \cdot x\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification97.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{x \cdot x}{y \cdot y} \leq 5 \cdot 10^{+301}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y \cdot y} \cdot x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{\frac{z}{t}}{t}, z, \frac{\frac{x}{y}}{y} \cdot x\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 95.6% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{z \cdot z}{t \cdot t}\\ \mathbf{if}\;t\_1 \leq 10^{+251}:\\ \;\;\;\;\frac{x}{y} \cdot \frac{x}{y} + t\_1\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y \cdot y} \cdot x\right)\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (/ (* z z) (* t t))))
   (if (<= t_1 1e+251)
     (+ (* (/ x y) (/ x y)) t_1)
     (fma (/ z t) (/ z t) (* (/ x (* y y)) x)))))
double code(double x, double y, double z, double t) {
	double t_1 = (z * z) / (t * t);
	double tmp;
	if (t_1 <= 1e+251) {
		tmp = ((x / y) * (x / y)) + t_1;
	} else {
		tmp = fma((z / t), (z / t), ((x / (y * y)) * x));
	}
	return tmp;
}
function code(x, y, z, t)
	t_1 = Float64(Float64(z * z) / Float64(t * t))
	tmp = 0.0
	if (t_1 <= 1e+251)
		tmp = Float64(Float64(Float64(x / y) * Float64(x / y)) + t_1);
	else
		tmp = fma(Float64(z / t), Float64(z / t), Float64(Float64(x / Float64(y * y)) * x));
	end
	return tmp
end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(N[(z * z), $MachinePrecision] / N[(t * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, 1e+251], N[(N[(N[(x / y), $MachinePrecision] * N[(x / y), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision] + N[(N[(x / N[(y * y), $MachinePrecision]), $MachinePrecision] * x), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{z \cdot z}{t \cdot t}\\
\mathbf{if}\;t\_1 \leq 10^{+251}:\\
\;\;\;\;\frac{x}{y} \cdot \frac{x}{y} + t\_1\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y \cdot y} \cdot x\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 z z) (*.f64 t t)) < 1e251

    1. Initial program 69.9%

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

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

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

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

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

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

        \[\leadsto \color{blue}{\frac{x}{y}} \cdot \frac{x}{y} + \frac{z \cdot z}{t \cdot t} \]
      7. lower-/.f6495.1

        \[\leadsto \frac{x}{y} \cdot \color{blue}{\frac{x}{y}} + \frac{z \cdot z}{t \cdot t} \]
    4. Applied rewrites95.1%

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

    if 1e251 < (/.f64 (*.f64 z z) (*.f64 t t))

    1. Initial program 51.0%

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

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

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

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

        \[\leadsto \frac{\color{blue}{z \cdot z}}{t \cdot t} + \frac{x \cdot x}{y \cdot y} \]
      5. lift-*.f64N/A

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

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

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

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{t}}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right) \]
      9. lower-/.f6489.6

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
      11. lift-*.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
      12. lift-*.f64N/A

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{y} \cdot \frac{x}{y}}\right) \]
      14. pow2N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      15. lower-pow.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      16. lower-/.f6499.7

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\color{blue}{\left(\frac{x}{y}\right)}}^{2}\right) \]
    4. Applied rewrites99.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)} \]
    5. Step-by-step derivation
      1. lift-pow.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      2. unpow2N/A

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y} \cdot \color{blue}{\frac{x}{y}}\right) \]
      4. clear-numN/A

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

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

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

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\frac{y}{x} \cdot y}}\right) \]
      10. lower-*.f6499.7

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\color{blue}{\frac{y}{x} \cdot y}}\right) \]
    6. Applied rewrites99.7%

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\frac{y}{x} \cdot y}}\right) \]
    7. Step-by-step derivation
      1. lift-/.f64N/A

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

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

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\frac{\color{blue}{y \cdot y}}{x}}\right) \]
      6. frac-2negN/A

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\frac{\mathsf{neg}\left(y \cdot y\right)}{\color{blue}{-x}}}\right) \]
      8. associate-/r/N/A

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\mathsf{neg}\left(y \cdot y\right)}} \cdot \left(-x\right)\right) \]
      11. lift-*.f64N/A

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\color{blue}{\left(\mathsf{neg}\left(y\right)\right) \cdot y}} \cdot \left(-x\right)\right) \]
      14. lower-neg.f6495.5

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

      \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\left(-y\right) \cdot y} \cdot \left(-x\right)}\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification95.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z \cdot z}{t \cdot t} \leq 10^{+251}:\\ \;\;\;\;\frac{x}{y} \cdot \frac{x}{y} + \frac{z \cdot z}{t \cdot t}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y \cdot y} \cdot x\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 90.5% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{z \cdot z}{t \cdot t}\\ \mathbf{if}\;t\_1 \leq 10^{+251}:\\ \;\;\;\;\frac{x}{y} \cdot \frac{x}{y} + t\_1\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right)\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (/ (* z z) (* t t))))
   (if (<= t_1 1e+251)
     (+ (* (/ x y) (/ x y)) t_1)
     (fma (/ z t) (/ z t) (/ (* x x) (* y y))))))
double code(double x, double y, double z, double t) {
	double t_1 = (z * z) / (t * t);
	double tmp;
	if (t_1 <= 1e+251) {
		tmp = ((x / y) * (x / y)) + t_1;
	} else {
		tmp = fma((z / t), (z / t), ((x * x) / (y * y)));
	}
	return tmp;
}
function code(x, y, z, t)
	t_1 = Float64(Float64(z * z) / Float64(t * t))
	tmp = 0.0
	if (t_1 <= 1e+251)
		tmp = Float64(Float64(Float64(x / y) * Float64(x / y)) + t_1);
	else
		tmp = fma(Float64(z / t), Float64(z / t), Float64(Float64(x * x) / Float64(y * y)));
	end
	return tmp
end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(N[(z * z), $MachinePrecision] / N[(t * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, 1e+251], N[(N[(N[(x / y), $MachinePrecision] * N[(x / y), $MachinePrecision]), $MachinePrecision] + t$95$1), $MachinePrecision], N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision] + N[(N[(x * x), $MachinePrecision] / N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{z \cdot z}{t \cdot t}\\
\mathbf{if}\;t\_1 \leq 10^{+251}:\\
\;\;\;\;\frac{x}{y} \cdot \frac{x}{y} + t\_1\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 z z) (*.f64 t t)) < 1e251

    1. Initial program 69.9%

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

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

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

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

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

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

        \[\leadsto \color{blue}{\frac{x}{y}} \cdot \frac{x}{y} + \frac{z \cdot z}{t \cdot t} \]
      7. lower-/.f6495.1

        \[\leadsto \frac{x}{y} \cdot \color{blue}{\frac{x}{y}} + \frac{z \cdot z}{t \cdot t} \]
    4. Applied rewrites95.1%

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

    if 1e251 < (/.f64 (*.f64 z z) (*.f64 t t))

    1. Initial program 51.0%

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

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

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

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

        \[\leadsto \frac{\color{blue}{z \cdot z}}{t \cdot t} + \frac{x \cdot x}{y \cdot y} \]
      5. lift-*.f64N/A

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

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

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

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{t}}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right) \]
      9. lower-/.f6489.6

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
      11. lift-*.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
      12. lift-*.f64N/A

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{y} \cdot \frac{x}{y}}\right) \]
      14. pow2N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      15. lower-pow.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      16. lower-/.f6499.7

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\color{blue}{\left(\frac{x}{y}\right)}}^{2}\right) \]
    4. Applied rewrites99.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)} \]
    5. Step-by-step derivation
      1. lift-pow.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      2. unpow2N/A

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

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

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
      7. lift-*.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x \cdot x}{\color{blue}{y \cdot y}}\right) \]
      8. lift-/.f6489.6

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
    6. Applied rewrites89.6%

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

Alternative 5: 87.5% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{x \cdot x}{y \cdot y}\\ \mathbf{if}\;t\_1 \leq \infty:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, t\_1\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\frac{z}{t}}{\frac{t}{z}}\\ \end{array} \end{array} \]
(FPCore (x y z t)
 :precision binary64
 (let* ((t_1 (/ (* x x) (* y y))))
   (if (<= t_1 INFINITY) (fma (/ z t) (/ z t) t_1) (/ (/ z t) (/ t z)))))
double code(double x, double y, double z, double t) {
	double t_1 = (x * x) / (y * y);
	double tmp;
	if (t_1 <= ((double) INFINITY)) {
		tmp = fma((z / t), (z / t), t_1);
	} else {
		tmp = (z / t) / (t / z);
	}
	return tmp;
}
function code(x, y, z, t)
	t_1 = Float64(Float64(x * x) / Float64(y * y))
	tmp = 0.0
	if (t_1 <= Inf)
		tmp = fma(Float64(z / t), Float64(z / t), t_1);
	else
		tmp = Float64(Float64(z / t) / Float64(t / z));
	end
	return tmp
end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[(N[(x * x), $MachinePrecision] / N[(y * y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision] + t$95$1), $MachinePrecision], N[(N[(z / t), $MachinePrecision] / N[(t / z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{x \cdot x}{y \cdot y}\\
\mathbf{if}\;t\_1 \leq \infty:\\
\;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, t\_1\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (*.f64 x x) (*.f64 y y)) < +inf.0

    1. Initial program 67.3%

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

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

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

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

        \[\leadsto \frac{\color{blue}{z \cdot z}}{t \cdot t} + \frac{x \cdot x}{y \cdot y} \]
      5. lift-*.f64N/A

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

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

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

        \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{t}}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right) \]
      9. lower-/.f6492.3

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
      11. lift-*.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
      12. lift-*.f64N/A

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{y} \cdot \frac{x}{y}}\right) \]
      14. pow2N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      15. lower-pow.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      16. lower-/.f6499.7

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\color{blue}{\left(\frac{x}{y}\right)}}^{2}\right) \]
    4. Applied rewrites99.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)} \]
    5. Step-by-step derivation
      1. lift-pow.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
      2. unpow2N/A

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

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

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

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

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
      7. lift-*.f64N/A

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x \cdot x}{\color{blue}{y \cdot y}}\right) \]
      8. lift-/.f6492.3

        \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
    6. Applied rewrites92.3%

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

    if +inf.0 < (/.f64 (*.f64 x x) (*.f64 y y))

    1. Initial program 0.0%

      \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0

      \[\leadsto \color{blue}{\frac{{z}^{2}}{{t}^{2}}} \]
    4. Step-by-step derivation
      1. unpow2N/A

        \[\leadsto \frac{\color{blue}{z \cdot z}}{{t}^{2}} \]
      2. associate-*l/N/A

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

        \[\leadsto \color{blue}{\frac{z}{{t}^{2}} \cdot z} \]
      4. unpow2N/A

        \[\leadsto \frac{z}{\color{blue}{t \cdot t}} \cdot z \]
      5. associate-/r*N/A

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

        \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t}} \cdot z \]
      7. lower-/.f6441.2

        \[\leadsto \frac{\color{blue}{\frac{z}{t}}}{t} \cdot z \]
    5. Applied rewrites41.2%

      \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t} \cdot z} \]
    6. Step-by-step derivation
      1. Applied rewrites44.5%

        \[\leadsto \frac{\frac{z}{t}}{\color{blue}{\frac{t}{z}}} \]
    7. Recombined 2 regimes into one program.
    8. Add Preprocessing

    Alternative 6: 77.9% accurate, 0.6× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{z \cdot z}{t \cdot t}\\ \mathbf{if}\;t\_1 \leq 2 \cdot 10^{+283}:\\ \;\;\;\;t\_1 + \frac{x \cdot x}{y \cdot y}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{t} \cdot \frac{z}{t}\\ \end{array} \end{array} \]
    (FPCore (x y z t)
     :precision binary64
     (let* ((t_1 (/ (* z z) (* t t))))
       (if (<= t_1 2e+283) (+ t_1 (/ (* x x) (* y y))) (* (/ z t) (/ z t)))))
    double code(double x, double y, double z, double t) {
    	double t_1 = (z * z) / (t * t);
    	double tmp;
    	if (t_1 <= 2e+283) {
    		tmp = t_1 + ((x * x) / (y * y));
    	} else {
    		tmp = (z / t) * (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) :: t_1
        real(8) :: tmp
        t_1 = (z * z) / (t * t)
        if (t_1 <= 2d+283) then
            tmp = t_1 + ((x * x) / (y * y))
        else
            tmp = (z / t) * (z / t)
        end if
        code = tmp
    end function
    
    public static double code(double x, double y, double z, double t) {
    	double t_1 = (z * z) / (t * t);
    	double tmp;
    	if (t_1 <= 2e+283) {
    		tmp = t_1 + ((x * x) / (y * y));
    	} else {
    		tmp = (z / t) * (z / t);
    	}
    	return tmp;
    }
    
    def code(x, y, z, t):
    	t_1 = (z * z) / (t * t)
    	tmp = 0
    	if t_1 <= 2e+283:
    		tmp = t_1 + ((x * x) / (y * y))
    	else:
    		tmp = (z / t) * (z / t)
    	return tmp
    
    function code(x, y, z, t)
    	t_1 = Float64(Float64(z * z) / Float64(t * t))
    	tmp = 0.0
    	if (t_1 <= 2e+283)
    		tmp = Float64(t_1 + Float64(Float64(x * x) / Float64(y * y)));
    	else
    		tmp = Float64(Float64(z / t) * Float64(z / t));
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y, z, t)
    	t_1 = (z * z) / (t * t);
    	tmp = 0.0;
    	if (t_1 <= 2e+283)
    		tmp = t_1 + ((x * x) / (y * y));
    	else
    		tmp = (z / t) * (z / t);
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_, z_, t_] := Block[{t$95$1 = N[(N[(z * z), $MachinePrecision] / N[(t * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, 2e+283], N[(t$95$1 + N[(N[(x * x), $MachinePrecision] / N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision]), $MachinePrecision]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_1 := \frac{z \cdot z}{t \cdot t}\\
    \mathbf{if}\;t\_1 \leq 2 \cdot 10^{+283}:\\
    \;\;\;\;t\_1 + \frac{x \cdot x}{y \cdot y}\\
    
    \mathbf{else}:\\
    \;\;\;\;\frac{z}{t} \cdot \frac{z}{t}\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if (/.f64 (*.f64 z z) (*.f64 t t)) < 1.99999999999999991e283

      1. Initial program 70.1%

        \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
      2. Add Preprocessing

      if 1.99999999999999991e283 < (/.f64 (*.f64 z z) (*.f64 t t))

      1. Initial program 50.6%

        \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
      2. Add Preprocessing
      3. Taylor expanded in x around 0

        \[\leadsto \color{blue}{\frac{{z}^{2}}{{t}^{2}}} \]
      4. Step-by-step derivation
        1. unpow2N/A

          \[\leadsto \frac{\color{blue}{z \cdot z}}{{t}^{2}} \]
        2. associate-*l/N/A

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

          \[\leadsto \color{blue}{\frac{z}{{t}^{2}} \cdot z} \]
        4. unpow2N/A

          \[\leadsto \frac{z}{\color{blue}{t \cdot t}} \cdot z \]
        5. associate-/r*N/A

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

          \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t}} \cdot z \]
        7. lower-/.f6478.6

          \[\leadsto \frac{\color{blue}{\frac{z}{t}}}{t} \cdot z \]
      5. Applied rewrites78.6%

        \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t} \cdot z} \]
      6. Step-by-step derivation
        1. Applied rewrites85.5%

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

        \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{z \cdot z}{t \cdot t} \leq 2 \cdot 10^{+283}:\\ \;\;\;\;\frac{z \cdot z}{t \cdot t} + \frac{x \cdot x}{y \cdot y}\\ \mathbf{else}:\\ \;\;\;\;\frac{z}{t} \cdot \frac{z}{t}\\ \end{array} \]
      9. Add Preprocessing

      Alternative 7: 97.6% accurate, 0.7× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 10^{-231}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\frac{x}{y} \cdot x}{y}\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\frac{y}{x} \cdot y}\right)\\ \end{array} \end{array} \]
      (FPCore (x y z t)
       :precision binary64
       (if (<= y 1e-231)
         (fma (/ z t) (/ z t) (/ (* (/ x y) x) y))
         (fma (/ z t) (/ z t) (/ x (* (/ y x) y)))))
      double code(double x, double y, double z, double t) {
      	double tmp;
      	if (y <= 1e-231) {
      		tmp = fma((z / t), (z / t), (((x / y) * x) / y));
      	} else {
      		tmp = fma((z / t), (z / t), (x / ((y / x) * y)));
      	}
      	return tmp;
      }
      
      function code(x, y, z, t)
      	tmp = 0.0
      	if (y <= 1e-231)
      		tmp = fma(Float64(z / t), Float64(z / t), Float64(Float64(Float64(x / y) * x) / y));
      	else
      		tmp = fma(Float64(z / t), Float64(z / t), Float64(x / Float64(Float64(y / x) * y)));
      	end
      	return tmp
      end
      
      code[x_, y_, z_, t_] := If[LessEqual[y, 1e-231], N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision] + N[(N[(N[(x / y), $MachinePrecision] * x), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision] + N[(x / N[(N[(y / x), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;y \leq 10^{-231}:\\
      \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\frac{x}{y} \cdot x}{y}\right)\\
      
      \mathbf{else}:\\
      \;\;\;\;\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\frac{y}{x} \cdot y}\right)\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if y < 9.9999999999999999e-232

        1. Initial program 61.2%

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

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

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

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

            \[\leadsto \frac{\color{blue}{z \cdot z}}{t \cdot t} + \frac{x \cdot x}{y \cdot y} \]
          5. lift-*.f64N/A

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

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

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

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{t}}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right) \]
          9. lower-/.f6478.6

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

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
          11. lift-*.f64N/A

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
          12. lift-*.f64N/A

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

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{y} \cdot \frac{x}{y}}\right) \]
          14. pow2N/A

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
          15. lower-pow.f64N/A

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
          16. lower-/.f6499.6

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\color{blue}{\left(\frac{x}{y}\right)}}^{2}\right) \]
        4. Applied rewrites99.6%

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)} \]
        5. Step-by-step derivation
          1. lift-pow.f64N/A

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
          2. unpow2N/A

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

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y} \cdot \color{blue}{\frac{x}{y}}\right) \]
          4. associate-*r/N/A

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

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{\frac{x}{y} \cdot x}}{y}\right) \]
          6. lower-/.f6497.3

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{\frac{x}{y} \cdot x}{y}}\right) \]
        6. Applied rewrites97.3%

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

        if 9.9999999999999999e-232 < y

        1. Initial program 57.9%

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

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

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

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

            \[\leadsto \frac{\color{blue}{z \cdot z}}{t \cdot t} + \frac{x \cdot x}{y \cdot y} \]
          5. lift-*.f64N/A

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

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

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

            \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{t}}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right) \]
          9. lower-/.f6487.7

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

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
          11. lift-*.f64N/A

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
          12. lift-*.f64N/A

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

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{y} \cdot \frac{x}{y}}\right) \]
          14. pow2N/A

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
          15. lower-pow.f64N/A

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
          16. lower-/.f6499.6

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\color{blue}{\left(\frac{x}{y}\right)}}^{2}\right) \]
        4. Applied rewrites99.6%

          \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)} \]
        5. Step-by-step derivation
          1. lift-pow.f64N/A

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
          2. unpow2N/A

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

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y} \cdot \color{blue}{\frac{x}{y}}\right) \]
          4. clear-numN/A

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

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

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

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

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

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\frac{y}{x} \cdot y}}\right) \]
          10. lower-*.f6498.7

            \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\color{blue}{\frac{y}{x} \cdot y}}\right) \]
        6. Applied rewrites98.7%

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

      Alternative 8: 96.9% accurate, 0.8× speedup?

      \[\begin{array}{l} \\ \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\frac{y}{x} \cdot y}\right) \end{array} \]
      (FPCore (x y z t)
       :precision binary64
       (fma (/ z t) (/ z t) (/ x (* (/ y x) y))))
      double code(double x, double y, double z, double t) {
      	return fma((z / t), (z / t), (x / ((y / x) * y)));
      }
      
      function code(x, y, z, t)
      	return fma(Float64(z / t), Float64(z / t), Float64(x / Float64(Float64(y / x) * y)))
      end
      
      code[x_, y_, z_, t_] := N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision] + N[(x / N[(N[(y / x), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
      
      \begin{array}{l}
      
      \\
      \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\frac{y}{x} \cdot y}\right)
      \end{array}
      
      Derivation
      1. Initial program 59.9%

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

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

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

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

          \[\leadsto \frac{\color{blue}{z \cdot z}}{t \cdot t} + \frac{x \cdot x}{y \cdot y} \]
        5. lift-*.f64N/A

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

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

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

          \[\leadsto \mathsf{fma}\left(\color{blue}{\frac{z}{t}}, \frac{z}{t}, \frac{x \cdot x}{y \cdot y}\right) \]
        9. lower-/.f6482.2

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

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x \cdot x}{y \cdot y}}\right) \]
        11. lift-*.f64N/A

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{\color{blue}{x \cdot x}}{y \cdot y}\right) \]
        12. lift-*.f64N/A

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

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{y} \cdot \frac{x}{y}}\right) \]
        14. pow2N/A

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
        15. lower-pow.f64N/A

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
        16. lower-/.f6499.6

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\color{blue}{\left(\frac{x}{y}\right)}}^{2}\right) \]
      4. Applied rewrites99.6%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, {\left(\frac{x}{y}\right)}^{2}\right)} \]
      5. Step-by-step derivation
        1. lift-pow.f64N/A

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{{\left(\frac{x}{y}\right)}^{2}}\right) \]
        2. unpow2N/A

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

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{y} \cdot \color{blue}{\frac{x}{y}}\right) \]
        4. clear-numN/A

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

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

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

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

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

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \color{blue}{\frac{x}{\frac{y}{x} \cdot y}}\right) \]
        10. lower-*.f6497.3

          \[\leadsto \mathsf{fma}\left(\frac{z}{t}, \frac{z}{t}, \frac{x}{\color{blue}{\frac{y}{x} \cdot y}}\right) \]
      6. Applied rewrites97.3%

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

      Alternative 9: 59.8% accurate, 1.0× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \cdot x \leq 5.2 \cdot 10^{+295}:\\ \;\;\;\;\frac{\frac{z}{t}}{\frac{t}{z}}\\ \mathbf{else}:\\ \;\;\;\;\frac{-1}{-t} \cdot \frac{z \cdot z}{t}\\ \end{array} \end{array} \]
      (FPCore (x y z t)
       :precision binary64
       (if (<= (* x x) 5.2e+295)
         (/ (/ z t) (/ t z))
         (* (/ -1.0 (- t)) (/ (* z z) t))))
      double code(double x, double y, double z, double t) {
      	double tmp;
      	if ((x * x) <= 5.2e+295) {
      		tmp = (z / t) / (t / z);
      	} else {
      		tmp = (-1.0 / -t) * ((z * 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 * x) <= 5.2d+295) then
              tmp = (z / t) / (t / z)
          else
              tmp = ((-1.0d0) / -t) * ((z * z) / t)
          end if
          code = tmp
      end function
      
      public static double code(double x, double y, double z, double t) {
      	double tmp;
      	if ((x * x) <= 5.2e+295) {
      		tmp = (z / t) / (t / z);
      	} else {
      		tmp = (-1.0 / -t) * ((z * z) / t);
      	}
      	return tmp;
      }
      
      def code(x, y, z, t):
      	tmp = 0
      	if (x * x) <= 5.2e+295:
      		tmp = (z / t) / (t / z)
      	else:
      		tmp = (-1.0 / -t) * ((z * z) / t)
      	return tmp
      
      function code(x, y, z, t)
      	tmp = 0.0
      	if (Float64(x * x) <= 5.2e+295)
      		tmp = Float64(Float64(z / t) / Float64(t / z));
      	else
      		tmp = Float64(Float64(-1.0 / Float64(-t)) * Float64(Float64(z * z) / t));
      	end
      	return tmp
      end
      
      function tmp_2 = code(x, y, z, t)
      	tmp = 0.0;
      	if ((x * x) <= 5.2e+295)
      		tmp = (z / t) / (t / z);
      	else
      		tmp = (-1.0 / -t) * ((z * z) / t);
      	end
      	tmp_2 = tmp;
      end
      
      code[x_, y_, z_, t_] := If[LessEqual[N[(x * x), $MachinePrecision], 5.2e+295], N[(N[(z / t), $MachinePrecision] / N[(t / z), $MachinePrecision]), $MachinePrecision], N[(N[(-1.0 / (-t)), $MachinePrecision] * N[(N[(z * z), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;x \cdot x \leq 5.2 \cdot 10^{+295}:\\
      \;\;\;\;\frac{\frac{z}{t}}{\frac{t}{z}}\\
      
      \mathbf{else}:\\
      \;\;\;\;\frac{-1}{-t} \cdot \frac{z \cdot z}{t}\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if (*.f64 x x) < 5.19999999999999972e295

        1. Initial program 62.1%

          \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
        2. Add Preprocessing
        3. Taylor expanded in x around 0

          \[\leadsto \color{blue}{\frac{{z}^{2}}{{t}^{2}}} \]
        4. Step-by-step derivation
          1. unpow2N/A

            \[\leadsto \frac{\color{blue}{z \cdot z}}{{t}^{2}} \]
          2. associate-*l/N/A

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

            \[\leadsto \color{blue}{\frac{z}{{t}^{2}} \cdot z} \]
          4. unpow2N/A

            \[\leadsto \frac{z}{\color{blue}{t \cdot t}} \cdot z \]
          5. associate-/r*N/A

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

            \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t}} \cdot z \]
          7. lower-/.f6466.0

            \[\leadsto \frac{\color{blue}{\frac{z}{t}}}{t} \cdot z \]
        5. Applied rewrites66.0%

          \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t} \cdot z} \]
        6. Step-by-step derivation
          1. Applied rewrites71.5%

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

          if 5.19999999999999972e295 < (*.f64 x x)

          1. Initial program 52.9%

            \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
          2. Add Preprocessing
          3. Taylor expanded in x around 0

            \[\leadsto \color{blue}{\frac{{z}^{2}}{{t}^{2}}} \]
          4. Step-by-step derivation
            1. unpow2N/A

              \[\leadsto \frac{\color{blue}{z \cdot z}}{{t}^{2}} \]
            2. associate-*l/N/A

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

              \[\leadsto \color{blue}{\frac{z}{{t}^{2}} \cdot z} \]
            4. unpow2N/A

              \[\leadsto \frac{z}{\color{blue}{t \cdot t}} \cdot z \]
            5. associate-/r*N/A

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

              \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t}} \cdot z \]
            7. lower-/.f6426.7

              \[\leadsto \frac{\color{blue}{\frac{z}{t}}}{t} \cdot z \]
          5. Applied rewrites26.7%

            \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t} \cdot z} \]
          6. Step-by-step derivation
            1. Applied rewrites26.0%

              \[\leadsto \frac{z \cdot z}{\color{blue}{t \cdot t}} \]
            2. Step-by-step derivation
              1. Applied rewrites36.0%

                \[\leadsto \frac{-1}{t} \cdot \color{blue}{\frac{z \cdot z}{-t}} \]
            3. Recombined 2 regimes into one program.
            4. Final simplification63.1%

              \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot x \leq 5.2 \cdot 10^{+295}:\\ \;\;\;\;\frac{\frac{z}{t}}{\frac{t}{z}}\\ \mathbf{else}:\\ \;\;\;\;\frac{-1}{-t} \cdot \frac{z \cdot z}{t}\\ \end{array} \]
            5. Add Preprocessing

            Alternative 10: 59.1% accurate, 1.4× speedup?

            \[\begin{array}{l} \\ \frac{\frac{z}{t}}{\frac{t}{z}} \end{array} \]
            (FPCore (x y z t) :precision binary64 (/ (/ z t) (/ t z)))
            double code(double x, double y, double z, double t) {
            	return (z / t) / (t / z);
            }
            
            real(8) function code(x, y, z, t)
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                real(8), intent (in) :: z
                real(8), intent (in) :: t
                code = (z / t) / (t / z)
            end function
            
            public static double code(double x, double y, double z, double t) {
            	return (z / t) / (t / z);
            }
            
            def code(x, y, z, t):
            	return (z / t) / (t / z)
            
            function code(x, y, z, t)
            	return Float64(Float64(z / t) / Float64(t / z))
            end
            
            function tmp = code(x, y, z, t)
            	tmp = (z / t) / (t / z);
            end
            
            code[x_, y_, z_, t_] := N[(N[(z / t), $MachinePrecision] / N[(t / z), $MachinePrecision]), $MachinePrecision]
            
            \begin{array}{l}
            
            \\
            \frac{\frac{z}{t}}{\frac{t}{z}}
            \end{array}
            
            Derivation
            1. Initial program 59.9%

              \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
            2. Add Preprocessing
            3. Taylor expanded in x around 0

              \[\leadsto \color{blue}{\frac{{z}^{2}}{{t}^{2}}} \]
            4. Step-by-step derivation
              1. unpow2N/A

                \[\leadsto \frac{\color{blue}{z \cdot z}}{{t}^{2}} \]
              2. associate-*l/N/A

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

                \[\leadsto \color{blue}{\frac{z}{{t}^{2}} \cdot z} \]
              4. unpow2N/A

                \[\leadsto \frac{z}{\color{blue}{t \cdot t}} \cdot z \]
              5. associate-/r*N/A

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

                \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t}} \cdot z \]
              7. lower-/.f6456.6

                \[\leadsto \frac{\color{blue}{\frac{z}{t}}}{t} \cdot z \]
            5. Applied rewrites56.6%

              \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t} \cdot z} \]
            6. Step-by-step derivation
              1. Applied rewrites60.5%

                \[\leadsto \frac{\frac{z}{t}}{\color{blue}{\frac{t}{z}}} \]
              2. Add Preprocessing

              Alternative 11: 59.0% accurate, 1.6× speedup?

              \[\begin{array}{l} \\ \frac{z}{t} \cdot \frac{z}{t} \end{array} \]
              (FPCore (x y z t) :precision binary64 (* (/ z t) (/ z t)))
              double code(double x, double y, double z, double t) {
              	return (z / t) * (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 = (z / t) * (z / t)
              end function
              
              public static double code(double x, double y, double z, double t) {
              	return (z / t) * (z / t);
              }
              
              def code(x, y, z, t):
              	return (z / t) * (z / t)
              
              function code(x, y, z, t)
              	return Float64(Float64(z / t) * Float64(z / t))
              end
              
              function tmp = code(x, y, z, t)
              	tmp = (z / t) * (z / t);
              end
              
              code[x_, y_, z_, t_] := N[(N[(z / t), $MachinePrecision] * N[(z / t), $MachinePrecision]), $MachinePrecision]
              
              \begin{array}{l}
              
              \\
              \frac{z}{t} \cdot \frac{z}{t}
              \end{array}
              
              Derivation
              1. Initial program 59.9%

                \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
              2. Add Preprocessing
              3. Taylor expanded in x around 0

                \[\leadsto \color{blue}{\frac{{z}^{2}}{{t}^{2}}} \]
              4. Step-by-step derivation
                1. unpow2N/A

                  \[\leadsto \frac{\color{blue}{z \cdot z}}{{t}^{2}} \]
                2. associate-*l/N/A

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

                  \[\leadsto \color{blue}{\frac{z}{{t}^{2}} \cdot z} \]
                4. unpow2N/A

                  \[\leadsto \frac{z}{\color{blue}{t \cdot t}} \cdot z \]
                5. associate-/r*N/A

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

                  \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t}} \cdot z \]
                7. lower-/.f6456.6

                  \[\leadsto \frac{\color{blue}{\frac{z}{t}}}{t} \cdot z \]
              5. Applied rewrites56.6%

                \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t} \cdot z} \]
              6. Step-by-step derivation
                1. Applied rewrites60.5%

                  \[\leadsto \frac{z}{t} \cdot \color{blue}{\frac{z}{t}} \]
                2. Add Preprocessing

                Alternative 12: 52.5% accurate, 2.1× speedup?

                \[\begin{array}{l} \\ \frac{z}{t \cdot t} \cdot z \end{array} \]
                (FPCore (x y z t) :precision binary64 (* (/ z (* t t)) z))
                double code(double x, double y, double z, double t) {
                	return (z / (t * t)) * z;
                }
                
                real(8) function code(x, y, z, t)
                    real(8), intent (in) :: x
                    real(8), intent (in) :: y
                    real(8), intent (in) :: z
                    real(8), intent (in) :: t
                    code = (z / (t * t)) * z
                end function
                
                public static double code(double x, double y, double z, double t) {
                	return (z / (t * t)) * z;
                }
                
                def code(x, y, z, t):
                	return (z / (t * t)) * z
                
                function code(x, y, z, t)
                	return Float64(Float64(z / Float64(t * t)) * z)
                end
                
                function tmp = code(x, y, z, t)
                	tmp = (z / (t * t)) * z;
                end
                
                code[x_, y_, z_, t_] := N[(N[(z / N[(t * t), $MachinePrecision]), $MachinePrecision] * z), $MachinePrecision]
                
                \begin{array}{l}
                
                \\
                \frac{z}{t \cdot t} \cdot z
                \end{array}
                
                Derivation
                1. Initial program 59.9%

                  \[\frac{x \cdot x}{y \cdot y} + \frac{z \cdot z}{t \cdot t} \]
                2. Add Preprocessing
                3. Taylor expanded in x around 0

                  \[\leadsto \color{blue}{\frac{{z}^{2}}{{t}^{2}}} \]
                4. Step-by-step derivation
                  1. unpow2N/A

                    \[\leadsto \frac{\color{blue}{z \cdot z}}{{t}^{2}} \]
                  2. associate-*l/N/A

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

                    \[\leadsto \color{blue}{\frac{z}{{t}^{2}} \cdot z} \]
                  4. unpow2N/A

                    \[\leadsto \frac{z}{\color{blue}{t \cdot t}} \cdot z \]
                  5. associate-/r*N/A

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

                    \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t}} \cdot z \]
                  7. lower-/.f6456.6

                    \[\leadsto \frac{\color{blue}{\frac{z}{t}}}{t} \cdot z \]
                5. Applied rewrites56.6%

                  \[\leadsto \color{blue}{\frac{\frac{z}{t}}{t} \cdot z} \]
                6. Step-by-step derivation
                  1. Applied rewrites45.5%

                    \[\leadsto \frac{z}{t \cdot t} \cdot z \]
                  2. Add Preprocessing

                  Developer Target 1: 99.7% accurate, 0.2× speedup?

                  \[\begin{array}{l} \\ {\left(\frac{x}{y}\right)}^{2} + {\left(\frac{z}{t}\right)}^{2} \end{array} \]
                  (FPCore (x y z t) :precision binary64 (+ (pow (/ x y) 2.0) (pow (/ z t) 2.0)))
                  double code(double x, double y, double z, double t) {
                  	return pow((x / y), 2.0) + pow((z / t), 2.0);
                  }
                  
                  real(8) function code(x, y, z, t)
                      real(8), intent (in) :: x
                      real(8), intent (in) :: y
                      real(8), intent (in) :: z
                      real(8), intent (in) :: t
                      code = ((x / y) ** 2.0d0) + ((z / t) ** 2.0d0)
                  end function
                  
                  public static double code(double x, double y, double z, double t) {
                  	return Math.pow((x / y), 2.0) + Math.pow((z / t), 2.0);
                  }
                  
                  def code(x, y, z, t):
                  	return math.pow((x / y), 2.0) + math.pow((z / t), 2.0)
                  
                  function code(x, y, z, t)
                  	return Float64((Float64(x / y) ^ 2.0) + (Float64(z / t) ^ 2.0))
                  end
                  
                  function tmp = code(x, y, z, t)
                  	tmp = ((x / y) ^ 2.0) + ((z / t) ^ 2.0);
                  end
                  
                  code[x_, y_, z_, t_] := N[(N[Power[N[(x / y), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(z / t), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
                  
                  \begin{array}{l}
                  
                  \\
                  {\left(\frac{x}{y}\right)}^{2} + {\left(\frac{z}{t}\right)}^{2}
                  \end{array}
                  

                  Reproduce

                  ?
                  herbie shell --seed 2024332 
                  (FPCore (x y z t)
                    :name "Graphics.Rasterific.Svg.PathConverter:arcToSegments from rasterific-svg-0.2.3.1"
                    :precision binary64
                  
                    :alt
                    (! :herbie-platform default (+ (pow (/ x y) 2) (pow (/ z t) 2)))
                  
                    (+ (/ (* x x) (* y y)) (/ (* z z) (* t t))))