Graphics.Rendering.Chart.Backend.Diagrams:calcFontMetrics from Chart-diagrams-1.5.1, A

Percentage Accurate: 88.5% → 99.8%
Time: 2.9s
Alternatives: 9
Speedup: 0.3×

Specification

?
\[\begin{array}{l} \\ \frac{x + y}{1 - \frac{y}{z}} \end{array} \]
(FPCore (x y z) :precision binary64 (/ (+ x y) (- 1.0 (/ y z))))
double code(double x, double y, double z) {
	return (x + y) / (1.0 - (y / z));
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y, z)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = (x + y) / (1.0d0 - (y / z))
end function
public static double code(double x, double y, double z) {
	return (x + y) / (1.0 - (y / z));
}
def code(x, y, z):
	return (x + y) / (1.0 - (y / z))
function code(x, y, z)
	return Float64(Float64(x + y) / Float64(1.0 - Float64(y / z)))
end
function tmp = code(x, y, z)
	tmp = (x + y) / (1.0 - (y / z));
end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] / N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{x + y}{1 - \frac{y}{z}}
\end{array}

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 9 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: 88.5% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{x + y}{1 - \frac{y}{z}} \end{array} \]
(FPCore (x y z) :precision binary64 (/ (+ x y) (- 1.0 (/ y z))))
double code(double x, double y, double z) {
	return (x + y) / (1.0 - (y / z));
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y, z)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = (x + y) / (1.0d0 - (y / z))
end function
public static double code(double x, double y, double z) {
	return (x + y) / (1.0 - (y / z));
}
def code(x, y, z):
	return (x + y) / (1.0 - (y / z))
function code(x, y, z)
	return Float64(Float64(x + y) / Float64(1.0 - Float64(y / z)))
end
function tmp = code(x, y, z)
	tmp = (x + y) / (1.0 - (y / z));
end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] / N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{x + y}{1 - \frac{y}{z}}
\end{array}

Alternative 1: 99.8% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{x + y}{1 - \frac{y}{z}}\\ \mathbf{if}\;t\_0 \leq -5 \cdot 10^{-286} \lor \neg \left(t\_0 \leq 0\right):\\ \;\;\;\;\frac{x + y}{\frac{z - y}{z}}\\ \mathbf{else}:\\ \;\;\;\;\left(-z\right) \cdot \frac{y + x}{y}\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (/ (+ x y) (- 1.0 (/ y z)))))
   (if (or (<= t_0 -5e-286) (not (<= t_0 0.0)))
     (/ (+ x y) (/ (- z y) z))
     (* (- z) (/ (+ y x) y)))))
double code(double x, double y, double z) {
	double t_0 = (x + y) / (1.0 - (y / z));
	double tmp;
	if ((t_0 <= -5e-286) || !(t_0 <= 0.0)) {
		tmp = (x + y) / ((z - y) / z);
	} else {
		tmp = -z * ((y + x) / y);
	}
	return tmp;
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y, z)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: t_0
    real(8) :: tmp
    t_0 = (x + y) / (1.0d0 - (y / z))
    if ((t_0 <= (-5d-286)) .or. (.not. (t_0 <= 0.0d0))) then
        tmp = (x + y) / ((z - y) / z)
    else
        tmp = -z * ((y + x) / y)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double t_0 = (x + y) / (1.0 - (y / z));
	double tmp;
	if ((t_0 <= -5e-286) || !(t_0 <= 0.0)) {
		tmp = (x + y) / ((z - y) / z);
	} else {
		tmp = -z * ((y + x) / y);
	}
	return tmp;
}
def code(x, y, z):
	t_0 = (x + y) / (1.0 - (y / z))
	tmp = 0
	if (t_0 <= -5e-286) or not (t_0 <= 0.0):
		tmp = (x + y) / ((z - y) / z)
	else:
		tmp = -z * ((y + x) / y)
	return tmp
function code(x, y, z)
	t_0 = Float64(Float64(x + y) / Float64(1.0 - Float64(y / z)))
	tmp = 0.0
	if ((t_0 <= -5e-286) || !(t_0 <= 0.0))
		tmp = Float64(Float64(x + y) / Float64(Float64(z - y) / z));
	else
		tmp = Float64(Float64(-z) * Float64(Float64(y + x) / y));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	t_0 = (x + y) / (1.0 - (y / z));
	tmp = 0.0;
	if ((t_0 <= -5e-286) || ~((t_0 <= 0.0)))
		tmp = (x + y) / ((z - y) / z);
	else
		tmp = -z * ((y + x) / y);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := Block[{t$95$0 = N[(N[(x + y), $MachinePrecision] / N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[t$95$0, -5e-286], N[Not[LessEqual[t$95$0, 0.0]], $MachinePrecision]], N[(N[(x + y), $MachinePrecision] / N[(N[(z - y), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision], N[((-z) * N[(N[(y + x), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{x + y}{1 - \frac{y}{z}}\\
\mathbf{if}\;t\_0 \leq -5 \cdot 10^{-286} \lor \neg \left(t\_0 \leq 0\right):\\
\;\;\;\;\frac{x + y}{\frac{z - y}{z}}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 (+.f64 x y) (-.f64 #s(literal 1 binary64) (/.f64 y z))) < -5.00000000000000037e-286 or -0.0 < (/.f64 (+.f64 x y) (-.f64 #s(literal 1 binary64) (/.f64 y z)))

    1. Initial program 99.9%

      \[\frac{x + y}{1 - \frac{y}{z}} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0

      \[\leadsto \frac{x + y}{\color{blue}{\frac{z - y}{z}}} \]
    4. Step-by-step derivation
      1. lower-/.f64N/A

        \[\leadsto \frac{x + y}{\frac{z - y}{\color{blue}{z}}} \]
      2. lower--.f6499.8

        \[\leadsto \frac{x + y}{\frac{z - y}{z}} \]
    5. Applied rewrites99.8%

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

    if -5.00000000000000037e-286 < (/.f64 (+.f64 x y) (-.f64 #s(literal 1 binary64) (/.f64 y z))) < -0.0

    1. Initial program 9.0%

      \[\frac{x + y}{1 - \frac{y}{z}} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0

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

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

        \[\leadsto -\frac{z \cdot \left(x + y\right)}{y} \]
      3. lower-/.f64N/A

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

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      5. lower-*.f64N/A

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      6. +-commutativeN/A

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
      7. lower-+.f6497.2

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
    5. Applied rewrites97.2%

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

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

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

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
      4. +-commutativeN/A

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      5. *-commutativeN/A

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

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      7. lower-*.f64N/A

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      8. lower-/.f64N/A

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      9. +-commutativeN/A

        \[\leadsto -z \cdot \frac{y + x}{y} \]
      10. lift-+.f6499.2

        \[\leadsto -z \cdot \frac{y + x}{y} \]
    7. Applied rewrites99.2%

      \[\leadsto -z \cdot \frac{y + x}{y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification99.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{x + y}{1 - \frac{y}{z}} \leq -5 \cdot 10^{-286} \lor \neg \left(\frac{x + y}{1 - \frac{y}{z}} \leq 0\right):\\ \;\;\;\;\frac{x + y}{\frac{z - y}{z}}\\ \mathbf{else}:\\ \;\;\;\;\left(-z\right) \cdot \frac{y + x}{y}\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 74.2% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.2 \cdot 10^{-44} \lor \neg \left(y \leq 1.7 \cdot 10^{+48}\right):\\ \;\;\;\;\left(-z\right) \cdot \frac{y + x}{y}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{y}{z}, y\right) + x\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= y -6.2e-44) (not (<= y 1.7e+48)))
   (* (- z) (/ (+ y x) y))
   (+ (fma y (/ y z) y) x)))
double code(double x, double y, double z) {
	double tmp;
	if ((y <= -6.2e-44) || !(y <= 1.7e+48)) {
		tmp = -z * ((y + x) / y);
	} else {
		tmp = fma(y, (y / z), y) + x;
	}
	return tmp;
}
function code(x, y, z)
	tmp = 0.0
	if ((y <= -6.2e-44) || !(y <= 1.7e+48))
		tmp = Float64(Float64(-z) * Float64(Float64(y + x) / y));
	else
		tmp = Float64(fma(y, Float64(y / z), y) + x);
	end
	return tmp
end
code[x_, y_, z_] := If[Or[LessEqual[y, -6.2e-44], N[Not[LessEqual[y, 1.7e+48]], $MachinePrecision]], N[((-z) * N[(N[(y + x), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], N[(N[(y * N[(y / z), $MachinePrecision] + y), $MachinePrecision] + x), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.2 \cdot 10^{-44} \lor \neg \left(y \leq 1.7 \cdot 10^{+48}\right):\\
\;\;\;\;\left(-z\right) \cdot \frac{y + x}{y}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -6.19999999999999968e-44 or 1.7000000000000002e48 < y

    1. Initial program 77.0%

      \[\frac{x + y}{1 - \frac{y}{z}} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0

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

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

        \[\leadsto -\frac{z \cdot \left(x + y\right)}{y} \]
      3. lower-/.f64N/A

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

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      5. lower-*.f64N/A

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      6. +-commutativeN/A

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
      7. lower-+.f6462.6

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
    5. Applied rewrites62.6%

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

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

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

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
      4. +-commutativeN/A

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      5. *-commutativeN/A

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

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      7. lower-*.f64N/A

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      8. lower-/.f64N/A

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      9. +-commutativeN/A

        \[\leadsto -z \cdot \frac{y + x}{y} \]
      10. lift-+.f6474.8

        \[\leadsto -z \cdot \frac{y + x}{y} \]
    7. Applied rewrites74.8%

      \[\leadsto -z \cdot \frac{y + x}{y} \]

    if -6.19999999999999968e-44 < y < 1.7000000000000002e48

    1. Initial program 99.6%

      \[\frac{x + y}{1 - \frac{y}{z}} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf

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

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

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

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

        \[\leadsto \left(y \cdot \frac{x + y}{z} + y\right) + x \]
      5. lower-fma.f64N/A

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

        \[\leadsto \mathsf{fma}\left(y, \frac{x + y}{z}, y\right) + x \]
      7. +-commutativeN/A

        \[\leadsto \mathsf{fma}\left(y, \frac{y + x}{z}, y\right) + x \]
      8. lower-+.f6470.0

        \[\leadsto \mathsf{fma}\left(y, \frac{y + x}{z}, y\right) + x \]
    5. Applied rewrites70.0%

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

      \[\leadsto \mathsf{fma}\left(y, \frac{y}{z}, y\right) + x \]
    7. Step-by-step derivation
      1. lower-/.f6473.6

        \[\leadsto \mathsf{fma}\left(y, \frac{y}{z}, y\right) + x \]
    8. Applied rewrites73.6%

      \[\leadsto \mathsf{fma}\left(y, \frac{y}{z}, y\right) + x \]
  3. Recombined 2 regimes into one program.
  4. Final simplification74.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6.2 \cdot 10^{-44} \lor \neg \left(y \leq 1.7 \cdot 10^{+48}\right):\\ \;\;\;\;\left(-z\right) \cdot \frac{y + x}{y}\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, \frac{y}{z}, y\right) + x\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 71.4% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.2 \cdot 10^{-44} \lor \neg \left(y \leq 1.38 \cdot 10^{+104}\right):\\ \;\;\;\;-\mathsf{fma}\left(x, \frac{z}{y}, z\right)\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= y -6.2e-44) (not (<= y 1.38e+104)))
   (- (fma x (/ z y) z))
   (+ y x)))
double code(double x, double y, double z) {
	double tmp;
	if ((y <= -6.2e-44) || !(y <= 1.38e+104)) {
		tmp = -fma(x, (z / y), z);
	} else {
		tmp = y + x;
	}
	return tmp;
}
function code(x, y, z)
	tmp = 0.0
	if ((y <= -6.2e-44) || !(y <= 1.38e+104))
		tmp = Float64(-fma(x, Float64(z / y), z));
	else
		tmp = Float64(y + x);
	end
	return tmp
end
code[x_, y_, z_] := If[Or[LessEqual[y, -6.2e-44], N[Not[LessEqual[y, 1.38e+104]], $MachinePrecision]], (-N[(x * N[(z / y), $MachinePrecision] + z), $MachinePrecision]), N[(y + x), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.2 \cdot 10^{-44} \lor \neg \left(y \leq 1.38 \cdot 10^{+104}\right):\\
\;\;\;\;-\mathsf{fma}\left(x, \frac{z}{y}, z\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -6.19999999999999968e-44 or 1.38e104 < y

    1. Initial program 75.7%

      \[\frac{x + y}{1 - \frac{y}{z}} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0

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

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

        \[\leadsto -\frac{z \cdot \left(x + y\right)}{y} \]
      3. lower-/.f64N/A

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

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      5. lower-*.f64N/A

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      6. +-commutativeN/A

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
      7. lower-+.f6462.4

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
    5. Applied rewrites62.4%

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

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

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

        \[\leadsto -\left(x \cdot \frac{z}{y} + z\right) \]
      3. lower-fma.f64N/A

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

        \[\leadsto -\mathsf{fma}\left(x, \frac{z}{y}, z\right) \]
    8. Applied rewrites72.5%

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

    if -6.19999999999999968e-44 < y < 1.38e104

    1. Initial program 98.7%

      \[\frac{x + y}{1 - \frac{y}{z}} \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf

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

        \[\leadsto y + \color{blue}{x} \]
      2. lower-+.f6470.5

        \[\leadsto y + \color{blue}{x} \]
    5. Applied rewrites70.5%

      \[\leadsto \color{blue}{y + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification71.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6.2 \cdot 10^{-44} \lor \neg \left(y \leq 1.38 \cdot 10^{+104}\right):\\ \;\;\;\;-\mathsf{fma}\left(x, \frac{z}{y}, z\right)\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 65.9% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.45 \cdot 10^{+52}:\\ \;\;\;\;-z\\ \mathbf{elif}\;y \leq -6.3 \cdot 10^{-44}:\\ \;\;\;\;\left(-z\right) \cdot \frac{x}{y}\\ \mathbf{elif}\;y \leq 1.9 \cdot 10^{+110}:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;-z\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= y -1.45e+52)
   (- z)
   (if (<= y -6.3e-44) (* (- z) (/ x y)) (if (<= y 1.9e+110) (+ y x) (- z)))))
double code(double x, double y, double z) {
	double tmp;
	if (y <= -1.45e+52) {
		tmp = -z;
	} else if (y <= -6.3e-44) {
		tmp = -z * (x / y);
	} else if (y <= 1.9e+110) {
		tmp = y + x;
	} else {
		tmp = -z;
	}
	return tmp;
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y, z)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (y <= (-1.45d+52)) then
        tmp = -z
    else if (y <= (-6.3d-44)) then
        tmp = -z * (x / y)
    else if (y <= 1.9d+110) then
        tmp = y + x
    else
        tmp = -z
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if (y <= -1.45e+52) {
		tmp = -z;
	} else if (y <= -6.3e-44) {
		tmp = -z * (x / y);
	} else if (y <= 1.9e+110) {
		tmp = y + x;
	} else {
		tmp = -z;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if y <= -1.45e+52:
		tmp = -z
	elif y <= -6.3e-44:
		tmp = -z * (x / y)
	elif y <= 1.9e+110:
		tmp = y + x
	else:
		tmp = -z
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (y <= -1.45e+52)
		tmp = Float64(-z);
	elseif (y <= -6.3e-44)
		tmp = Float64(Float64(-z) * Float64(x / y));
	elseif (y <= 1.9e+110)
		tmp = Float64(y + x);
	else
		tmp = Float64(-z);
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (y <= -1.45e+52)
		tmp = -z;
	elseif (y <= -6.3e-44)
		tmp = -z * (x / y);
	elseif (y <= 1.9e+110)
		tmp = y + x;
	else
		tmp = -z;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[y, -1.45e+52], (-z), If[LessEqual[y, -6.3e-44], N[((-z) * N[(x / y), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1.9e+110], N[(y + x), $MachinePrecision], (-z)]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.45 \cdot 10^{+52}:\\
\;\;\;\;-z\\

\mathbf{elif}\;y \leq -6.3 \cdot 10^{-44}:\\
\;\;\;\;\left(-z\right) \cdot \frac{x}{y}\\

\mathbf{elif}\;y \leq 1.9 \cdot 10^{+110}:\\
\;\;\;\;y + x\\

\mathbf{else}:\\
\;\;\;\;-z\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.45e52 or 1.89999999999999994e110 < y

    1. Initial program 71.0%

      \[\frac{x + y}{1 - \frac{y}{z}} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf

      \[\leadsto \color{blue}{-1 \cdot z} \]
    4. Step-by-step derivation
      1. mul-1-negN/A

        \[\leadsto \mathsf{neg}\left(z\right) \]
      2. lower-neg.f6467.0

        \[\leadsto -z \]
    5. Applied rewrites67.0%

      \[\leadsto \color{blue}{-z} \]

    if -1.45e52 < y < -6.2999999999999998e-44

    1. Initial program 98.0%

      \[\frac{x + y}{1 - \frac{y}{z}} \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0

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

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

        \[\leadsto -\frac{z \cdot \left(x + y\right)}{y} \]
      3. lower-/.f64N/A

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

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      5. lower-*.f64N/A

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      6. +-commutativeN/A

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
      7. lower-+.f6454.3

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
    5. Applied rewrites54.3%

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

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

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

        \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
      4. +-commutativeN/A

        \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
      5. *-commutativeN/A

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

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      7. lower-*.f64N/A

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      8. lower-/.f64N/A

        \[\leadsto -z \cdot \frac{x + y}{y} \]
      9. +-commutativeN/A

        \[\leadsto -z \cdot \frac{y + x}{y} \]
      10. lift-+.f6453.8

        \[\leadsto -z \cdot \frac{y + x}{y} \]
    7. Applied rewrites53.8%

      \[\leadsto -z \cdot \frac{y + x}{y} \]
    8. Taylor expanded in x around inf

      \[\leadsto -z \cdot \frac{x}{y} \]
    9. Step-by-step derivation
      1. Applied rewrites28.9%

        \[\leadsto -z \cdot \frac{x}{y} \]

      if -6.2999999999999998e-44 < y < 1.89999999999999994e110

      1. Initial program 98.5%

        \[\frac{x + y}{1 - \frac{y}{z}} \]
      2. Add Preprocessing
      3. Taylor expanded in z around inf

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

          \[\leadsto y + \color{blue}{x} \]
        2. lower-+.f6470.2

          \[\leadsto y + \color{blue}{x} \]
      5. Applied rewrites70.2%

        \[\leadsto \color{blue}{y + x} \]
    10. Recombined 3 regimes into one program.
    11. Final simplification65.9%

      \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.45 \cdot 10^{+52}:\\ \;\;\;\;-z\\ \mathbf{elif}\;y \leq -6.3 \cdot 10^{-44}:\\ \;\;\;\;\left(-z\right) \cdot \frac{x}{y}\\ \mathbf{elif}\;y \leq 1.9 \cdot 10^{+110}:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;-z\\ \end{array} \]
    12. Add Preprocessing

    Alternative 5: 66.1% accurate, 0.9× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.4 \cdot 10^{+41}:\\ \;\;\;\;-z\\ \mathbf{elif}\;y \leq -6.3 \cdot 10^{-44}:\\ \;\;\;\;-x \cdot \frac{z}{y}\\ \mathbf{elif}\;y \leq 1.9 \cdot 10^{+110}:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;-z\\ \end{array} \end{array} \]
    (FPCore (x y z)
     :precision binary64
     (if (<= y -5.4e+41)
       (- z)
       (if (<= y -6.3e-44) (- (* x (/ z y))) (if (<= y 1.9e+110) (+ y x) (- z)))))
    double code(double x, double y, double z) {
    	double tmp;
    	if (y <= -5.4e+41) {
    		tmp = -z;
    	} else if (y <= -6.3e-44) {
    		tmp = -(x * (z / y));
    	} else if (y <= 1.9e+110) {
    		tmp = y + x;
    	} else {
    		tmp = -z;
    	}
    	return tmp;
    }
    
    module fmin_fmax_functions
        implicit none
        private
        public fmax
        public fmin
    
        interface fmax
            module procedure fmax88
            module procedure fmax44
            module procedure fmax84
            module procedure fmax48
        end interface
        interface fmin
            module procedure fmin88
            module procedure fmin44
            module procedure fmin84
            module procedure fmin48
        end interface
    contains
        real(8) function fmax88(x, y) result (res)
            real(8), intent (in) :: x
            real(8), intent (in) :: y
            res = merge(y, merge(x, max(x, y), y /= y), x /= x)
        end function
        real(4) function fmax44(x, y) result (res)
            real(4), intent (in) :: x
            real(4), intent (in) :: y
            res = merge(y, merge(x, max(x, y), y /= y), x /= x)
        end function
        real(8) function fmax84(x, y) result(res)
            real(8), intent (in) :: x
            real(4), intent (in) :: y
            res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
        end function
        real(8) function fmax48(x, y) result(res)
            real(4), intent (in) :: x
            real(8), intent (in) :: y
            res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
        end function
        real(8) function fmin88(x, y) result (res)
            real(8), intent (in) :: x
            real(8), intent (in) :: y
            res = merge(y, merge(x, min(x, y), y /= y), x /= x)
        end function
        real(4) function fmin44(x, y) result (res)
            real(4), intent (in) :: x
            real(4), intent (in) :: y
            res = merge(y, merge(x, min(x, y), y /= y), x /= x)
        end function
        real(8) function fmin84(x, y) result(res)
            real(8), intent (in) :: x
            real(4), intent (in) :: y
            res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
        end function
        real(8) function fmin48(x, y) result(res)
            real(4), intent (in) :: x
            real(8), intent (in) :: y
            res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
        end function
    end module
    
    real(8) function code(x, y, z)
    use fmin_fmax_functions
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        real(8), intent (in) :: z
        real(8) :: tmp
        if (y <= (-5.4d+41)) then
            tmp = -z
        else if (y <= (-6.3d-44)) then
            tmp = -(x * (z / y))
        else if (y <= 1.9d+110) then
            tmp = y + x
        else
            tmp = -z
        end if
        code = tmp
    end function
    
    public static double code(double x, double y, double z) {
    	double tmp;
    	if (y <= -5.4e+41) {
    		tmp = -z;
    	} else if (y <= -6.3e-44) {
    		tmp = -(x * (z / y));
    	} else if (y <= 1.9e+110) {
    		tmp = y + x;
    	} else {
    		tmp = -z;
    	}
    	return tmp;
    }
    
    def code(x, y, z):
    	tmp = 0
    	if y <= -5.4e+41:
    		tmp = -z
    	elif y <= -6.3e-44:
    		tmp = -(x * (z / y))
    	elif y <= 1.9e+110:
    		tmp = y + x
    	else:
    		tmp = -z
    	return tmp
    
    function code(x, y, z)
    	tmp = 0.0
    	if (y <= -5.4e+41)
    		tmp = Float64(-z);
    	elseif (y <= -6.3e-44)
    		tmp = Float64(-Float64(x * Float64(z / y)));
    	elseif (y <= 1.9e+110)
    		tmp = Float64(y + x);
    	else
    		tmp = Float64(-z);
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y, z)
    	tmp = 0.0;
    	if (y <= -5.4e+41)
    		tmp = -z;
    	elseif (y <= -6.3e-44)
    		tmp = -(x * (z / y));
    	elseif (y <= 1.9e+110)
    		tmp = y + x;
    	else
    		tmp = -z;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_, z_] := If[LessEqual[y, -5.4e+41], (-z), If[LessEqual[y, -6.3e-44], (-N[(x * N[(z / y), $MachinePrecision]), $MachinePrecision]), If[LessEqual[y, 1.9e+110], N[(y + x), $MachinePrecision], (-z)]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    \mathbf{if}\;y \leq -5.4 \cdot 10^{+41}:\\
    \;\;\;\;-z\\
    
    \mathbf{elif}\;y \leq -6.3 \cdot 10^{-44}:\\
    \;\;\;\;-x \cdot \frac{z}{y}\\
    
    \mathbf{elif}\;y \leq 1.9 \cdot 10^{+110}:\\
    \;\;\;\;y + x\\
    
    \mathbf{else}:\\
    \;\;\;\;-z\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if y < -5.39999999999999999e41 or 1.89999999999999994e110 < y

      1. Initial program 71.7%

        \[\frac{x + y}{1 - \frac{y}{z}} \]
      2. Add Preprocessing
      3. Taylor expanded in y around inf

        \[\leadsto \color{blue}{-1 \cdot z} \]
      4. Step-by-step derivation
        1. mul-1-negN/A

          \[\leadsto \mathsf{neg}\left(z\right) \]
        2. lower-neg.f6466.1

          \[\leadsto -z \]
      5. Applied rewrites66.1%

        \[\leadsto \color{blue}{-z} \]

      if -5.39999999999999999e41 < y < -6.2999999999999998e-44

      1. Initial program 98.5%

        \[\frac{x + y}{1 - \frac{y}{z}} \]
      2. Add Preprocessing
      3. Taylor expanded in z around 0

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

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

          \[\leadsto -\frac{z \cdot \left(x + y\right)}{y} \]
        3. lower-/.f64N/A

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

          \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
        5. lower-*.f64N/A

          \[\leadsto -\frac{\left(x + y\right) \cdot z}{y} \]
        6. +-commutativeN/A

          \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
        7. lower-+.f6455.0

          \[\leadsto -\frac{\left(y + x\right) \cdot z}{y} \]
      5. Applied rewrites55.0%

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

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

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

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

          \[\leadsto -\left(y + x\right) \cdot \frac{z}{y} \]
        5. +-commutativeN/A

          \[\leadsto -\left(x + y\right) \cdot \frac{z}{y} \]
        6. lower-*.f64N/A

          \[\leadsto -\left(x + y\right) \cdot \frac{z}{y} \]
        7. +-commutativeN/A

          \[\leadsto -\left(y + x\right) \cdot \frac{z}{y} \]
        8. lift-+.f64N/A

          \[\leadsto -\left(y + x\right) \cdot \frac{z}{y} \]
        9. lower-/.f6454.4

          \[\leadsto -\left(y + x\right) \cdot \frac{z}{y} \]
      7. Applied rewrites54.4%

        \[\leadsto -\left(y + x\right) \cdot \frac{z}{y} \]
      8. Taylor expanded in x around 0

        \[\leadsto -y \cdot \frac{z}{y} \]
      9. Step-by-step derivation
        1. Applied rewrites27.1%

          \[\leadsto -y \cdot \frac{z}{y} \]
        2. Taylor expanded in x around inf

          \[\leadsto -\frac{x \cdot z}{y} \]
        3. Step-by-step derivation
          1. associate-/l*N/A

            \[\leadsto -x \cdot \frac{z}{y} \]
          2. lower-*.f64N/A

            \[\leadsto -x \cdot \frac{z}{y} \]
          3. lift-/.f6430.7

            \[\leadsto -x \cdot \frac{z}{y} \]
        4. Applied rewrites30.7%

          \[\leadsto -x \cdot \frac{z}{y} \]

        if -6.2999999999999998e-44 < y < 1.89999999999999994e110

        1. Initial program 98.5%

          \[\frac{x + y}{1 - \frac{y}{z}} \]
        2. Add Preprocessing
        3. Taylor expanded in z around inf

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

            \[\leadsto y + \color{blue}{x} \]
          2. lower-+.f6470.2

            \[\leadsto y + \color{blue}{x} \]
        5. Applied rewrites70.2%

          \[\leadsto \color{blue}{y + x} \]
      10. Recombined 3 regimes into one program.
      11. Add Preprocessing

      Alternative 6: 67.3% accurate, 1.8× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4.7 \cdot 10^{+54} \lor \neg \left(y \leq 1.9 \cdot 10^{+110}\right):\\ \;\;\;\;-z\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \end{array} \]
      (FPCore (x y z)
       :precision binary64
       (if (or (<= y -4.7e+54) (not (<= y 1.9e+110))) (- z) (+ y x)))
      double code(double x, double y, double z) {
      	double tmp;
      	if ((y <= -4.7e+54) || !(y <= 1.9e+110)) {
      		tmp = -z;
      	} else {
      		tmp = y + x;
      	}
      	return tmp;
      }
      
      module fmin_fmax_functions
          implicit none
          private
          public fmax
          public fmin
      
          interface fmax
              module procedure fmax88
              module procedure fmax44
              module procedure fmax84
              module procedure fmax48
          end interface
          interface fmin
              module procedure fmin88
              module procedure fmin44
              module procedure fmin84
              module procedure fmin48
          end interface
      contains
          real(8) function fmax88(x, y) result (res)
              real(8), intent (in) :: x
              real(8), intent (in) :: y
              res = merge(y, merge(x, max(x, y), y /= y), x /= x)
          end function
          real(4) function fmax44(x, y) result (res)
              real(4), intent (in) :: x
              real(4), intent (in) :: y
              res = merge(y, merge(x, max(x, y), y /= y), x /= x)
          end function
          real(8) function fmax84(x, y) result(res)
              real(8), intent (in) :: x
              real(4), intent (in) :: y
              res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
          end function
          real(8) function fmax48(x, y) result(res)
              real(4), intent (in) :: x
              real(8), intent (in) :: y
              res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
          end function
          real(8) function fmin88(x, y) result (res)
              real(8), intent (in) :: x
              real(8), intent (in) :: y
              res = merge(y, merge(x, min(x, y), y /= y), x /= x)
          end function
          real(4) function fmin44(x, y) result (res)
              real(4), intent (in) :: x
              real(4), intent (in) :: y
              res = merge(y, merge(x, min(x, y), y /= y), x /= x)
          end function
          real(8) function fmin84(x, y) result(res)
              real(8), intent (in) :: x
              real(4), intent (in) :: y
              res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
          end function
          real(8) function fmin48(x, y) result(res)
              real(4), intent (in) :: x
              real(8), intent (in) :: y
              res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
          end function
      end module
      
      real(8) function code(x, y, z)
      use fmin_fmax_functions
          real(8), intent (in) :: x
          real(8), intent (in) :: y
          real(8), intent (in) :: z
          real(8) :: tmp
          if ((y <= (-4.7d+54)) .or. (.not. (y <= 1.9d+110))) then
              tmp = -z
          else
              tmp = y + x
          end if
          code = tmp
      end function
      
      public static double code(double x, double y, double z) {
      	double tmp;
      	if ((y <= -4.7e+54) || !(y <= 1.9e+110)) {
      		tmp = -z;
      	} else {
      		tmp = y + x;
      	}
      	return tmp;
      }
      
      def code(x, y, z):
      	tmp = 0
      	if (y <= -4.7e+54) or not (y <= 1.9e+110):
      		tmp = -z
      	else:
      		tmp = y + x
      	return tmp
      
      function code(x, y, z)
      	tmp = 0.0
      	if ((y <= -4.7e+54) || !(y <= 1.9e+110))
      		tmp = Float64(-z);
      	else
      		tmp = Float64(y + x);
      	end
      	return tmp
      end
      
      function tmp_2 = code(x, y, z)
      	tmp = 0.0;
      	if ((y <= -4.7e+54) || ~((y <= 1.9e+110)))
      		tmp = -z;
      	else
      		tmp = y + x;
      	end
      	tmp_2 = tmp;
      end
      
      code[x_, y_, z_] := If[Or[LessEqual[y, -4.7e+54], N[Not[LessEqual[y, 1.9e+110]], $MachinePrecision]], (-z), N[(y + x), $MachinePrecision]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;y \leq -4.7 \cdot 10^{+54} \lor \neg \left(y \leq 1.9 \cdot 10^{+110}\right):\\
      \;\;\;\;-z\\
      
      \mathbf{else}:\\
      \;\;\;\;y + x\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if y < -4.69999999999999993e54 or 1.89999999999999994e110 < y

        1. Initial program 70.9%

          \[\frac{x + y}{1 - \frac{y}{z}} \]
        2. Add Preprocessing
        3. Taylor expanded in y around inf

          \[\leadsto \color{blue}{-1 \cdot z} \]
        4. Step-by-step derivation
          1. mul-1-negN/A

            \[\leadsto \mathsf{neg}\left(z\right) \]
          2. lower-neg.f6467.1

            \[\leadsto -z \]
        5. Applied rewrites67.1%

          \[\leadsto \color{blue}{-z} \]

        if -4.69999999999999993e54 < y < 1.89999999999999994e110

        1. Initial program 98.5%

          \[\frac{x + y}{1 - \frac{y}{z}} \]
        2. Add Preprocessing
        3. Taylor expanded in z around inf

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

            \[\leadsto y + \color{blue}{x} \]
          2. lower-+.f6467.3

            \[\leadsto y + \color{blue}{x} \]
        5. Applied rewrites67.3%

          \[\leadsto \color{blue}{y + x} \]
      3. Recombined 2 regimes into one program.
      4. Final simplification67.3%

        \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.7 \cdot 10^{+54} \lor \neg \left(y \leq 1.9 \cdot 10^{+110}\right):\\ \;\;\;\;-z\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \]
      5. Add Preprocessing

      Alternative 7: 57.6% accurate, 1.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5 \cdot 10^{+41} \lor \neg \left(y \leq 1.7 \cdot 10^{+48}\right):\\ \;\;\;\;-z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
      (FPCore (x y z)
       :precision binary64
       (if (or (<= y -5e+41) (not (<= y 1.7e+48))) (- z) x))
      double code(double x, double y, double z) {
      	double tmp;
      	if ((y <= -5e+41) || !(y <= 1.7e+48)) {
      		tmp = -z;
      	} else {
      		tmp = x;
      	}
      	return tmp;
      }
      
      module fmin_fmax_functions
          implicit none
          private
          public fmax
          public fmin
      
          interface fmax
              module procedure fmax88
              module procedure fmax44
              module procedure fmax84
              module procedure fmax48
          end interface
          interface fmin
              module procedure fmin88
              module procedure fmin44
              module procedure fmin84
              module procedure fmin48
          end interface
      contains
          real(8) function fmax88(x, y) result (res)
              real(8), intent (in) :: x
              real(8), intent (in) :: y
              res = merge(y, merge(x, max(x, y), y /= y), x /= x)
          end function
          real(4) function fmax44(x, y) result (res)
              real(4), intent (in) :: x
              real(4), intent (in) :: y
              res = merge(y, merge(x, max(x, y), y /= y), x /= x)
          end function
          real(8) function fmax84(x, y) result(res)
              real(8), intent (in) :: x
              real(4), intent (in) :: y
              res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
          end function
          real(8) function fmax48(x, y) result(res)
              real(4), intent (in) :: x
              real(8), intent (in) :: y
              res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
          end function
          real(8) function fmin88(x, y) result (res)
              real(8), intent (in) :: x
              real(8), intent (in) :: y
              res = merge(y, merge(x, min(x, y), y /= y), x /= x)
          end function
          real(4) function fmin44(x, y) result (res)
              real(4), intent (in) :: x
              real(4), intent (in) :: y
              res = merge(y, merge(x, min(x, y), y /= y), x /= x)
          end function
          real(8) function fmin84(x, y) result(res)
              real(8), intent (in) :: x
              real(4), intent (in) :: y
              res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
          end function
          real(8) function fmin48(x, y) result(res)
              real(4), intent (in) :: x
              real(8), intent (in) :: y
              res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
          end function
      end module
      
      real(8) function code(x, y, z)
      use fmin_fmax_functions
          real(8), intent (in) :: x
          real(8), intent (in) :: y
          real(8), intent (in) :: z
          real(8) :: tmp
          if ((y <= (-5d+41)) .or. (.not. (y <= 1.7d+48))) then
              tmp = -z
          else
              tmp = x
          end if
          code = tmp
      end function
      
      public static double code(double x, double y, double z) {
      	double tmp;
      	if ((y <= -5e+41) || !(y <= 1.7e+48)) {
      		tmp = -z;
      	} else {
      		tmp = x;
      	}
      	return tmp;
      }
      
      def code(x, y, z):
      	tmp = 0
      	if (y <= -5e+41) or not (y <= 1.7e+48):
      		tmp = -z
      	else:
      		tmp = x
      	return tmp
      
      function code(x, y, z)
      	tmp = 0.0
      	if ((y <= -5e+41) || !(y <= 1.7e+48))
      		tmp = Float64(-z);
      	else
      		tmp = x;
      	end
      	return tmp
      end
      
      function tmp_2 = code(x, y, z)
      	tmp = 0.0;
      	if ((y <= -5e+41) || ~((y <= 1.7e+48)))
      		tmp = -z;
      	else
      		tmp = x;
      	end
      	tmp_2 = tmp;
      end
      
      code[x_, y_, z_] := If[Or[LessEqual[y, -5e+41], N[Not[LessEqual[y, 1.7e+48]], $MachinePrecision]], (-z), x]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;y \leq -5 \cdot 10^{+41} \lor \neg \left(y \leq 1.7 \cdot 10^{+48}\right):\\
      \;\;\;\;-z\\
      
      \mathbf{else}:\\
      \;\;\;\;x\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if y < -5.00000000000000022e41 or 1.7000000000000002e48 < y

        1. Initial program 73.7%

          \[\frac{x + y}{1 - \frac{y}{z}} \]
        2. Add Preprocessing
        3. Taylor expanded in y around inf

          \[\leadsto \color{blue}{-1 \cdot z} \]
        4. Step-by-step derivation
          1. mul-1-negN/A

            \[\leadsto \mathsf{neg}\left(z\right) \]
          2. lower-neg.f6463.1

            \[\leadsto -z \]
        5. Applied rewrites63.1%

          \[\leadsto \color{blue}{-z} \]

        if -5.00000000000000022e41 < y < 1.7000000000000002e48

        1. Initial program 99.5%

          \[\frac{x + y}{1 - \frac{y}{z}} \]
        2. Add Preprocessing
        3. Taylor expanded in y around 0

          \[\leadsto \color{blue}{x} \]
        4. Step-by-step derivation
          1. Applied rewrites53.5%

            \[\leadsto \color{blue}{x} \]
        5. Recombined 2 regimes into one program.
        6. Final simplification57.6%

          \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5 \cdot 10^{+41} \lor \neg \left(y \leq 1.7 \cdot 10^{+48}\right):\\ \;\;\;\;-z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
        7. Add Preprocessing

        Alternative 8: 40.7% accurate, 2.2× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.65 \cdot 10^{-185}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 2.35 \cdot 10^{-98}:\\ \;\;\;\;y\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
        (FPCore (x y z)
         :precision binary64
         (if (<= x -2.65e-185) x (if (<= x 2.35e-98) y x)))
        double code(double x, double y, double z) {
        	double tmp;
        	if (x <= -2.65e-185) {
        		tmp = x;
        	} else if (x <= 2.35e-98) {
        		tmp = y;
        	} else {
        		tmp = x;
        	}
        	return tmp;
        }
        
        module fmin_fmax_functions
            implicit none
            private
            public fmax
            public fmin
        
            interface fmax
                module procedure fmax88
                module procedure fmax44
                module procedure fmax84
                module procedure fmax48
            end interface
            interface fmin
                module procedure fmin88
                module procedure fmin44
                module procedure fmin84
                module procedure fmin48
            end interface
        contains
            real(8) function fmax88(x, y) result (res)
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                res = merge(y, merge(x, max(x, y), y /= y), x /= x)
            end function
            real(4) function fmax44(x, y) result (res)
                real(4), intent (in) :: x
                real(4), intent (in) :: y
                res = merge(y, merge(x, max(x, y), y /= y), x /= x)
            end function
            real(8) function fmax84(x, y) result(res)
                real(8), intent (in) :: x
                real(4), intent (in) :: y
                res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
            end function
            real(8) function fmax48(x, y) result(res)
                real(4), intent (in) :: x
                real(8), intent (in) :: y
                res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
            end function
            real(8) function fmin88(x, y) result (res)
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                res = merge(y, merge(x, min(x, y), y /= y), x /= x)
            end function
            real(4) function fmin44(x, y) result (res)
                real(4), intent (in) :: x
                real(4), intent (in) :: y
                res = merge(y, merge(x, min(x, y), y /= y), x /= x)
            end function
            real(8) function fmin84(x, y) result(res)
                real(8), intent (in) :: x
                real(4), intent (in) :: y
                res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
            end function
            real(8) function fmin48(x, y) result(res)
                real(4), intent (in) :: x
                real(8), intent (in) :: y
                res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
            end function
        end module
        
        real(8) function code(x, y, z)
        use fmin_fmax_functions
            real(8), intent (in) :: x
            real(8), intent (in) :: y
            real(8), intent (in) :: z
            real(8) :: tmp
            if (x <= (-2.65d-185)) then
                tmp = x
            else if (x <= 2.35d-98) then
                tmp = y
            else
                tmp = x
            end if
            code = tmp
        end function
        
        public static double code(double x, double y, double z) {
        	double tmp;
        	if (x <= -2.65e-185) {
        		tmp = x;
        	} else if (x <= 2.35e-98) {
        		tmp = y;
        	} else {
        		tmp = x;
        	}
        	return tmp;
        }
        
        def code(x, y, z):
        	tmp = 0
        	if x <= -2.65e-185:
        		tmp = x
        	elif x <= 2.35e-98:
        		tmp = y
        	else:
        		tmp = x
        	return tmp
        
        function code(x, y, z)
        	tmp = 0.0
        	if (x <= -2.65e-185)
        		tmp = x;
        	elseif (x <= 2.35e-98)
        		tmp = y;
        	else
        		tmp = x;
        	end
        	return tmp
        end
        
        function tmp_2 = code(x, y, z)
        	tmp = 0.0;
        	if (x <= -2.65e-185)
        		tmp = x;
        	elseif (x <= 2.35e-98)
        		tmp = y;
        	else
        		tmp = x;
        	end
        	tmp_2 = tmp;
        end
        
        code[x_, y_, z_] := If[LessEqual[x, -2.65e-185], x, If[LessEqual[x, 2.35e-98], y, x]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        \mathbf{if}\;x \leq -2.65 \cdot 10^{-185}:\\
        \;\;\;\;x\\
        
        \mathbf{elif}\;x \leq 2.35 \cdot 10^{-98}:\\
        \;\;\;\;y\\
        
        \mathbf{else}:\\
        \;\;\;\;x\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if x < -2.64999999999999987e-185 or 2.35000000000000003e-98 < x

          1. Initial program 88.6%

            \[\frac{x + y}{1 - \frac{y}{z}} \]
          2. Add Preprocessing
          3. Taylor expanded in y around 0

            \[\leadsto \color{blue}{x} \]
          4. Step-by-step derivation
            1. Applied rewrites41.4%

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

            if -2.64999999999999987e-185 < x < 2.35000000000000003e-98

            1. Initial program 88.4%

              \[\frac{x + y}{1 - \frac{y}{z}} \]
            2. Add Preprocessing
            3. Taylor expanded in z around inf

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

                \[\leadsto y + \color{blue}{x} \]
              2. lower-+.f6452.1

                \[\leadsto y + \color{blue}{x} \]
            5. Applied rewrites52.1%

              \[\leadsto \color{blue}{y + x} \]
            6. Taylor expanded in x around 0

              \[\leadsto y \]
            7. Step-by-step derivation
              1. Applied rewrites38.6%

                \[\leadsto y \]
            8. Recombined 2 regimes into one program.
            9. Add Preprocessing

            Alternative 9: 34.6% accurate, 29.0× speedup?

            \[\begin{array}{l} \\ x \end{array} \]
            (FPCore (x y z) :precision binary64 x)
            double code(double x, double y, double z) {
            	return x;
            }
            
            module fmin_fmax_functions
                implicit none
                private
                public fmax
                public fmin
            
                interface fmax
                    module procedure fmax88
                    module procedure fmax44
                    module procedure fmax84
                    module procedure fmax48
                end interface
                interface fmin
                    module procedure fmin88
                    module procedure fmin44
                    module procedure fmin84
                    module procedure fmin48
                end interface
            contains
                real(8) function fmax88(x, y) result (res)
                    real(8), intent (in) :: x
                    real(8), intent (in) :: y
                    res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                end function
                real(4) function fmax44(x, y) result (res)
                    real(4), intent (in) :: x
                    real(4), intent (in) :: y
                    res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                end function
                real(8) function fmax84(x, y) result(res)
                    real(8), intent (in) :: x
                    real(4), intent (in) :: y
                    res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
                end function
                real(8) function fmax48(x, y) result(res)
                    real(4), intent (in) :: x
                    real(8), intent (in) :: y
                    res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
                end function
                real(8) function fmin88(x, y) result (res)
                    real(8), intent (in) :: x
                    real(8), intent (in) :: y
                    res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                end function
                real(4) function fmin44(x, y) result (res)
                    real(4), intent (in) :: x
                    real(4), intent (in) :: y
                    res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                end function
                real(8) function fmin84(x, y) result(res)
                    real(8), intent (in) :: x
                    real(4), intent (in) :: y
                    res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
                end function
                real(8) function fmin48(x, y) result(res)
                    real(4), intent (in) :: x
                    real(8), intent (in) :: y
                    res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
                end function
            end module
            
            real(8) function code(x, y, z)
            use fmin_fmax_functions
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                real(8), intent (in) :: z
                code = x
            end function
            
            public static double code(double x, double y, double z) {
            	return x;
            }
            
            def code(x, y, z):
            	return x
            
            function code(x, y, z)
            	return x
            end
            
            function tmp = code(x, y, z)
            	tmp = x;
            end
            
            code[x_, y_, z_] := x
            
            \begin{array}{l}
            
            \\
            x
            \end{array}
            
            Derivation
            1. Initial program 88.5%

              \[\frac{x + y}{1 - \frac{y}{z}} \]
            2. Add Preprocessing
            3. Taylor expanded in y around 0

              \[\leadsto \color{blue}{x} \]
            4. Step-by-step derivation
              1. Applied rewrites34.6%

                \[\leadsto \color{blue}{x} \]
              2. Add Preprocessing

              Developer Target 1: 93.6% accurate, 0.7× speedup?

              \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{y + x}{-y} \cdot z\\ \mathbf{if}\;y < -3.7429310762689856 \cdot 10^{+171}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y < 3.5534662456086734 \cdot 10^{+168}:\\ \;\;\;\;\frac{x + y}{1 - \frac{y}{z}}\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
              (FPCore (x y z)
               :precision binary64
               (let* ((t_0 (* (/ (+ y x) (- y)) z)))
                 (if (< y -3.7429310762689856e+171)
                   t_0
                   (if (< y 3.5534662456086734e+168) (/ (+ x y) (- 1.0 (/ y z))) t_0))))
              double code(double x, double y, double z) {
              	double t_0 = ((y + x) / -y) * z;
              	double tmp;
              	if (y < -3.7429310762689856e+171) {
              		tmp = t_0;
              	} else if (y < 3.5534662456086734e+168) {
              		tmp = (x + y) / (1.0 - (y / z));
              	} else {
              		tmp = t_0;
              	}
              	return tmp;
              }
              
              module fmin_fmax_functions
                  implicit none
                  private
                  public fmax
                  public fmin
              
                  interface fmax
                      module procedure fmax88
                      module procedure fmax44
                      module procedure fmax84
                      module procedure fmax48
                  end interface
                  interface fmin
                      module procedure fmin88
                      module procedure fmin44
                      module procedure fmin84
                      module procedure fmin48
                  end interface
              contains
                  real(8) function fmax88(x, y) result (res)
                      real(8), intent (in) :: x
                      real(8), intent (in) :: y
                      res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                  end function
                  real(4) function fmax44(x, y) result (res)
                      real(4), intent (in) :: x
                      real(4), intent (in) :: y
                      res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                  end function
                  real(8) function fmax84(x, y) result(res)
                      real(8), intent (in) :: x
                      real(4), intent (in) :: y
                      res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
                  end function
                  real(8) function fmax48(x, y) result(res)
                      real(4), intent (in) :: x
                      real(8), intent (in) :: y
                      res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
                  end function
                  real(8) function fmin88(x, y) result (res)
                      real(8), intent (in) :: x
                      real(8), intent (in) :: y
                      res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                  end function
                  real(4) function fmin44(x, y) result (res)
                      real(4), intent (in) :: x
                      real(4), intent (in) :: y
                      res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                  end function
                  real(8) function fmin84(x, y) result(res)
                      real(8), intent (in) :: x
                      real(4), intent (in) :: y
                      res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
                  end function
                  real(8) function fmin48(x, y) result(res)
                      real(4), intent (in) :: x
                      real(8), intent (in) :: y
                      res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
                  end function
              end module
              
              real(8) function code(x, y, z)
              use fmin_fmax_functions
                  real(8), intent (in) :: x
                  real(8), intent (in) :: y
                  real(8), intent (in) :: z
                  real(8) :: t_0
                  real(8) :: tmp
                  t_0 = ((y + x) / -y) * z
                  if (y < (-3.7429310762689856d+171)) then
                      tmp = t_0
                  else if (y < 3.5534662456086734d+168) then
                      tmp = (x + y) / (1.0d0 - (y / z))
                  else
                      tmp = t_0
                  end if
                  code = tmp
              end function
              
              public static double code(double x, double y, double z) {
              	double t_0 = ((y + x) / -y) * z;
              	double tmp;
              	if (y < -3.7429310762689856e+171) {
              		tmp = t_0;
              	} else if (y < 3.5534662456086734e+168) {
              		tmp = (x + y) / (1.0 - (y / z));
              	} else {
              		tmp = t_0;
              	}
              	return tmp;
              }
              
              def code(x, y, z):
              	t_0 = ((y + x) / -y) * z
              	tmp = 0
              	if y < -3.7429310762689856e+171:
              		tmp = t_0
              	elif y < 3.5534662456086734e+168:
              		tmp = (x + y) / (1.0 - (y / z))
              	else:
              		tmp = t_0
              	return tmp
              
              function code(x, y, z)
              	t_0 = Float64(Float64(Float64(y + x) / Float64(-y)) * z)
              	tmp = 0.0
              	if (y < -3.7429310762689856e+171)
              		tmp = t_0;
              	elseif (y < 3.5534662456086734e+168)
              		tmp = Float64(Float64(x + y) / Float64(1.0 - Float64(y / z)));
              	else
              		tmp = t_0;
              	end
              	return tmp
              end
              
              function tmp_2 = code(x, y, z)
              	t_0 = ((y + x) / -y) * z;
              	tmp = 0.0;
              	if (y < -3.7429310762689856e+171)
              		tmp = t_0;
              	elseif (y < 3.5534662456086734e+168)
              		tmp = (x + y) / (1.0 - (y / z));
              	else
              		tmp = t_0;
              	end
              	tmp_2 = tmp;
              end
              
              code[x_, y_, z_] := Block[{t$95$0 = N[(N[(N[(y + x), $MachinePrecision] / (-y)), $MachinePrecision] * z), $MachinePrecision]}, If[Less[y, -3.7429310762689856e+171], t$95$0, If[Less[y, 3.5534662456086734e+168], N[(N[(x + y), $MachinePrecision] / N[(1.0 - N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$0]]]
              
              \begin{array}{l}
              
              \\
              \begin{array}{l}
              t_0 := \frac{y + x}{-y} \cdot z\\
              \mathbf{if}\;y < -3.7429310762689856 \cdot 10^{+171}:\\
              \;\;\;\;t\_0\\
              
              \mathbf{elif}\;y < 3.5534662456086734 \cdot 10^{+168}:\\
              \;\;\;\;\frac{x + y}{1 - \frac{y}{z}}\\
              
              \mathbf{else}:\\
              \;\;\;\;t\_0\\
              
              
              \end{array}
              \end{array}
              

              Reproduce

              ?
              herbie shell --seed 2025086 
              (FPCore (x y z)
                :name "Graphics.Rendering.Chart.Backend.Diagrams:calcFontMetrics from Chart-diagrams-1.5.1, A"
                :precision binary64
              
                :alt
                (! :herbie-platform default (if (< y -3742931076268985600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (* (/ (+ y x) (- y)) z) (if (< y 3553466245608673400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (/ (+ x y) (- 1 (/ y z))) (* (/ (+ y x) (- y)) z))))
              
                (/ (+ x y) (- 1.0 (/ y z))))