Data.Colour.Matrix:determinant from colour-2.3.3, A

Percentage Accurate: 74.1% → 82.8%

Time: 5.4s

Alternatives: 13

Speedup: 0.5×

• 42.3% of points produce a very large (infinite) output. You may want to add a precondition.

Specification

Math

\[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (+
  (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* t i))))
  (* j (- (* c a) (* y i)))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    code = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)))
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
}

Python

def code(x, y, z, t, a, b, c, i, j):
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)))

Julia

function code(x, y, z, t, a, b, c, i, j)
	return Float64(Float64(Float64(x * Float64(Float64(y * z) - Float64(t * a))) - Float64(b * Float64(Float64(c * z) - Float64(t * i)))) + Float64(j * Float64(Float64(c * a) - Float64(y * i))))
end

MATLAB

function tmp = code(x, y, z, t, a, b, c, i, j)
	tmp = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := N[(N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(N[(c * z), $MachinePrecision] - N[(t * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * a), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]

Initial Program: 74.1% accurate, 1.0× speedup

Math

\[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (+
  (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* t i))))
  (* j (- (* c a) (* y i)))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    code = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)))
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
}

Python

def code(x, y, z, t, a, b, c, i, j):
	return ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)))

Julia

function code(x, y, z, t, a, b, c, i, j)
	return Float64(Float64(Float64(x * Float64(Float64(y * z) - Float64(t * a))) - Float64(b * Float64(Float64(c * z) - Float64(t * i)))) + Float64(j * Float64(Float64(c * a) - Float64(y * i))))
end

MATLAB

function tmp = code(x, y, z, t, a, b, c, i, j)
	tmp = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := N[(N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(N[(c * z), $MachinePrecision] - N[(t * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * a), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]

Alternative 1: 82.8% accurate, 0.5× speedup

Math

\[\begin{array}{l} t_1 := \left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right)\\ \mathbf{if}\;t\_1 \leq \infty:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(b \cdot \left(\frac{x \cdot y}{b} - c\right)\right)\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1
         (+
          (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* t i))))
          (* j (- (* c a) (* y i))))))
   (if (<= t_1 INFINITY) t_1 (* z (* b (- (/ (* x y) b) c))))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
	double tmp;
	if (t_1 <= ((double) INFINITY)) {
		tmp = t_1;
	} else {
		tmp = z * (b * (((x * y) / b) - c));
	}
	return tmp;
}

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
	double tmp;
	if (t_1 <= Double.POSITIVE_INFINITY) {
		tmp = t_1;
	} else {
		tmp = z * (b * (((x * y) / b) - c));
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)))
	tmp = 0
	if t_1 <= math.inf:
		tmp = t_1
	else:
		tmp = z * (b * (((x * y) / b) - c))
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(Float64(Float64(x * Float64(Float64(y * z) - Float64(t * a))) - Float64(b * Float64(Float64(c * z) - Float64(t * i)))) + Float64(j * Float64(Float64(c * a) - Float64(y * i))))
	tmp = 0.0
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = Float64(z * Float64(b * Float64(Float64(Float64(x * y) / b) - c)));
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = ((x * ((y * z) - (t * a))) - (b * ((c * z) - (t * i)))) + (j * ((c * a) - (y * i)));
	tmp = 0.0;
	if (t_1 <= Inf)
		tmp = t_1;
	else
		tmp = z * (b * (((x * y) / b) - c));
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(N[(N[(x * N[(N[(y * z), $MachinePrecision] - N[(t * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(b * N[(N[(c * z), $MachinePrecision] - N[(t * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(j * N[(N[(c * a), $MachinePrecision] - N[(y * i), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], t$95$1, N[(z * N[(b * N[(N[(N[(x * y), $MachinePrecision] / b), $MachinePrecision] - c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]

Derivation

1. Split input into 2 regimes

2. if (+.f64 (-.f64 (*.f64 x (-.f64 (*.f64 y z) (*.f64 t a))) (*.f64 b (-.f64 (*.f64 c z) (*.f64 t i)))) (*.f64 j (-.f64 (*.f64 c a) (*.f64 y i)))) < +inf.0

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   if +inf.0 < (+.f64 (-.f64 (*.f64 x (-.f64 (*.f64 y z) (*.f64 t a))) (*.f64 b (-.f64 (*.f64 c z) (*.f64 t i)))) (*.f64 j (-.f64 (*.f64 c a) (*.f64 y i))))

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in z around inf

      \[\leadsto \color{blue}{z \cdot \left(x \cdot y - b \cdot c\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 38.5%

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

   4. Applied rewrites 38.5%

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

   5. Taylor expanded in b around inf

      \[\leadsto z \cdot \left(b \cdot \color{blue}{\left(\frac{x \cdot y}{b} - c\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-/.f64 N/A

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

      4. lower-*.f64 39.3%

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

   7. Applied rewrites 39.3%

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

Alternative 2: 67.4% accurate, 1.2× speedup

Math

\[\begin{array}{l} t_1 := b \cdot \left(i \cdot t - c \cdot z\right)\\ \mathbf{if}\;b \leq -1.3 \cdot 10^{+149}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 7.5 \cdot 10^{+164}:\\ \;\;\;\;\mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (- (* i t) (* c z)))))
   (if (<= b -1.3e+149)
     t_1
     (if (<= b 7.5e+164)
       (fma j (- (* a c) (* i y)) (* x (- (* y z) (* a t))))
       t_1))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((i * t) - (c * z));
	double tmp;
	if (b <= -1.3e+149) {
		tmp = t_1;
	} else if (b <= 7.5e+164) {
		tmp = fma(j, ((a * c) - (i * y)), (x * ((y * z) - (a * t))));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(Float64(i * t) - Float64(c * z)))
	tmp = 0.0
	if (b <= -1.3e+149)
		tmp = t_1;
	elseif (b <= 7.5e+164)
		tmp = fma(j, Float64(Float64(a * c) - Float64(i * y)), Float64(x * Float64(Float64(y * z) - Float64(a * t))));
	else
		tmp = t_1;
	end
	return tmp
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(N[(i * t), $MachinePrecision] - N[(c * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1.3e+149], t$95$1, If[LessEqual[b, 7.5e+164], N[(j * N[(N[(a * c), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision] + N[(x * N[(N[(y * z), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]

Derivation

1. Split input into 2 regimes

2. if b < -1.29999999999999989e149 or 7.49999999999999976e164 < b

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   if -1.29999999999999989e149 < b < 7.49999999999999976e164

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around 0

      \[\leadsto \color{blue}{j \cdot \left(a \cdot c - i \cdot y\right) + x \cdot \left(y \cdot z - a \cdot t\right)} \]
   3. Step-by-step derivation

      1. lower-fma.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 N/A

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

      5. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      6. lower--.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      7. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      8. lower-*.f64 61.4%

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

   4. Applied rewrites 61.4%

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

Alternative 3: 57.8% accurate, 1.5× speedup

Math

\[\begin{array}{l} t_1 := b \cdot \left(i \cdot t - c \cdot z\right)\\ \mathbf{if}\;b \leq -3.3 \cdot 10^{+142}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 7.5 \cdot 10^{+164}:\\ \;\;\;\;\mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (- (* i t) (* c z)))))
   (if (<= b -3.3e+142)
     t_1
     (if (<= b 7.5e+164) (fma j (- (* a c) (* i y)) (* x (* y z))) t_1))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((i * t) - (c * z));
	double tmp;
	if (b <= -3.3e+142) {
		tmp = t_1;
	} else if (b <= 7.5e+164) {
		tmp = fma(j, ((a * c) - (i * y)), (x * (y * z)));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(Float64(i * t) - Float64(c * z)))
	tmp = 0.0
	if (b <= -3.3e+142)
		tmp = t_1;
	elseif (b <= 7.5e+164)
		tmp = fma(j, Float64(Float64(a * c) - Float64(i * y)), Float64(x * Float64(y * z)));
	else
		tmp = t_1;
	end
	return tmp
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(N[(i * t), $MachinePrecision] - N[(c * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -3.3e+142], t$95$1, If[LessEqual[b, 7.5e+164], N[(j * N[(N[(a * c), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision] + N[(x * N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]

Derivation

1. Split input into 2 regimes

2. if b < -3.3000000000000002e142 or 7.49999999999999976e164 < b

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   if -3.3000000000000002e142 < b < 7.49999999999999976e164

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around 0

      \[\leadsto \color{blue}{j \cdot \left(a \cdot c - i \cdot y\right) + x \cdot \left(y \cdot z - a \cdot t\right)} \]
   3. Step-by-step derivation

      1. lower-fma.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 N/A

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

      5. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      6. lower--.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      7. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      8. lower-*.f64 61.4%

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

   4. Applied rewrites 61.4%

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

   5. Taylor expanded in y around inf

      \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z\right)\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z\right)\right) \]

      2. lower-*.f64 50.1%

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z\right)\right) \]

   7. Applied rewrites 50.1%

      \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z\right)\right) \]
3. Recombined 2 regimes into one program.
4. Add Preprocessing

Alternative 4: 51.4% accurate, 1.7× speedup

Math

\[\begin{array}{l} t_1 := b \cdot \left(i \cdot t - c \cdot z\right)\\ \mathbf{if}\;b \leq -3.3 \cdot 10^{+142}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -3.6 \cdot 10^{-286}:\\ \;\;\;\;j \cdot \left(a \cdot c - i \cdot y\right)\\ \mathbf{elif}\;b \leq 1.85 \cdot 10^{+90}:\\ \;\;\;\;\left(z \cdot y - a \cdot t\right) \cdot x\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (- (* i t) (* c z)))))
   (if (<= b -3.3e+142)
     t_1
     (if (<= b -3.6e-286)
       (* j (- (* a c) (* i y)))
       (if (<= b 1.85e+90) (* (- (* z y) (* a t)) x) t_1)))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((i * t) - (c * z));
	double tmp;
	if (b <= -3.3e+142) {
		tmp = t_1;
	} else if (b <= -3.6e-286) {
		tmp = j * ((a * c) - (i * y));
	} else if (b <= 1.85e+90) {
		tmp = ((z * y) - (a * t)) * x;
	} else {
		tmp = t_1;
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = b * ((i * t) - (c * z))
    if (b <= (-3.3d+142)) then
        tmp = t_1
    else if (b <= (-3.6d-286)) then
        tmp = j * ((a * c) - (i * y))
    else if (b <= 1.85d+90) then
        tmp = ((z * y) - (a * t)) * x
    else
        tmp = t_1
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((i * t) - (c * z));
	double tmp;
	if (b <= -3.3e+142) {
		tmp = t_1;
	} else if (b <= -3.6e-286) {
		tmp = j * ((a * c) - (i * y));
	} else if (b <= 1.85e+90) {
		tmp = ((z * y) - (a * t)) * x;
	} else {
		tmp = t_1;
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * ((i * t) - (c * z))
	tmp = 0
	if b <= -3.3e+142:
		tmp = t_1
	elif b <= -3.6e-286:
		tmp = j * ((a * c) - (i * y))
	elif b <= 1.85e+90:
		tmp = ((z * y) - (a * t)) * x
	else:
		tmp = t_1
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(Float64(i * t) - Float64(c * z)))
	tmp = 0.0
	if (b <= -3.3e+142)
		tmp = t_1;
	elseif (b <= -3.6e-286)
		tmp = Float64(j * Float64(Float64(a * c) - Float64(i * y)));
	elseif (b <= 1.85e+90)
		tmp = Float64(Float64(Float64(z * y) - Float64(a * t)) * x);
	else
		tmp = t_1;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * ((i * t) - (c * z));
	tmp = 0.0;
	if (b <= -3.3e+142)
		tmp = t_1;
	elseif (b <= -3.6e-286)
		tmp = j * ((a * c) - (i * y));
	elseif (b <= 1.85e+90)
		tmp = ((z * y) - (a * t)) * x;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(N[(i * t), $MachinePrecision] - N[(c * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -3.3e+142], t$95$1, If[LessEqual[b, -3.6e-286], N[(j * N[(N[(a * c), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 1.85e+90], N[(N[(N[(z * y), $MachinePrecision] - N[(a * t), $MachinePrecision]), $MachinePrecision] * x), $MachinePrecision], t$95$1]]]]

Derivation

1. Split input into 3 regimes

2. if b < -3.3000000000000002e142 or 1.85e90 < b

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   if -3.3000000000000002e142 < b < -3.60000000000000013e-286

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around 0

      \[\leadsto \color{blue}{j \cdot \left(a \cdot c - i \cdot y\right) + x \cdot \left(y \cdot z - a \cdot t\right)} \]
   3. Step-by-step derivation

      1. lower-fma.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 N/A

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

      5. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      6. lower--.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      7. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      8. lower-*.f64 61.4%

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

   4. Applied rewrites 61.4%

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

   5. Taylor expanded in x around 0

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - \color{blue}{i \cdot y}\right) \]

      2. lower--.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot \color{blue}{y}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

      4. lower-*.f64 38.9%

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

   7. Applied rewrites 38.9%

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]

   if -3.60000000000000013e-286 < b < 1.85e90

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   3. Applied rewrites 75.6%

      \[\leadsto \color{blue}{\mathsf{fma}\left(z \cdot y, x, \mathsf{fma}\left(x \cdot \left(-a\right), t, \mathsf{fma}\left(i \cdot t - c \cdot z, b, \left(c \cdot a - i \cdot y\right) \cdot j\right)\right)\right)} \]

   4. Taylor expanded in x around inf

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

      1. lower-*.f64 N/A

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

      2. lower-fma.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 39.6%

         \[\leadsto x \cdot \mathsf{fma}\left(-1, a \cdot t, y \cdot z\right) \]

   6. Applied rewrites 39.6%

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

   8. Applied rewrites 39.6%

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

Alternative 5: 51.3% accurate, 1.7× speedup

Math

\[\begin{array}{l} t_1 := j \cdot \left(a \cdot c - i \cdot y\right)\\ \mathbf{if}\;j \leq -3.9 \cdot 10^{-47}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq 4 \cdot 10^{-163}:\\ \;\;\;\;z \cdot \left(x \cdot y - b \cdot c\right)\\ \mathbf{elif}\;j \leq 1.08 \cdot 10^{+24}:\\ \;\;\;\;\left(b \cdot i - a \cdot x\right) \cdot t\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* a c) (* i y)))))
   (if (<= j -3.9e-47)
     t_1
     (if (<= j 4e-163)
       (* z (- (* x y) (* b c)))
       (if (<= j 1.08e+24) (* (- (* b i) (* a x)) t) t_1)))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((a * c) - (i * y));
	double tmp;
	if (j <= -3.9e-47) {
		tmp = t_1;
	} else if (j <= 4e-163) {
		tmp = z * ((x * y) - (b * c));
	} else if (j <= 1.08e+24) {
		tmp = ((b * i) - (a * x)) * t;
	} else {
		tmp = t_1;
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = j * ((a * c) - (i * y))
    if (j <= (-3.9d-47)) then
        tmp = t_1
    else if (j <= 4d-163) then
        tmp = z * ((x * y) - (b * c))
    else if (j <= 1.08d+24) then
        tmp = ((b * i) - (a * x)) * t
    else
        tmp = t_1
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((a * c) - (i * y));
	double tmp;
	if (j <= -3.9e-47) {
		tmp = t_1;
	} else if (j <= 4e-163) {
		tmp = z * ((x * y) - (b * c));
	} else if (j <= 1.08e+24) {
		tmp = ((b * i) - (a * x)) * t;
	} else {
		tmp = t_1;
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((a * c) - (i * y))
	tmp = 0
	if j <= -3.9e-47:
		tmp = t_1
	elif j <= 4e-163:
		tmp = z * ((x * y) - (b * c))
	elif j <= 1.08e+24:
		tmp = ((b * i) - (a * x)) * t
	else:
		tmp = t_1
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(a * c) - Float64(i * y)))
	tmp = 0.0
	if (j <= -3.9e-47)
		tmp = t_1;
	elseif (j <= 4e-163)
		tmp = Float64(z * Float64(Float64(x * y) - Float64(b * c)));
	elseif (j <= 1.08e+24)
		tmp = Float64(Float64(Float64(b * i) - Float64(a * x)) * t);
	else
		tmp = t_1;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((a * c) - (i * y));
	tmp = 0.0;
	if (j <= -3.9e-47)
		tmp = t_1;
	elseif (j <= 4e-163)
		tmp = z * ((x * y) - (b * c));
	elseif (j <= 1.08e+24)
		tmp = ((b * i) - (a * x)) * t;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(a * c), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -3.9e-47], t$95$1, If[LessEqual[j, 4e-163], N[(z * N[(N[(x * y), $MachinePrecision] - N[(b * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 1.08e+24], N[(N[(N[(b * i), $MachinePrecision] - N[(a * x), $MachinePrecision]), $MachinePrecision] * t), $MachinePrecision], t$95$1]]]]

Derivation

1. Split input into 3 regimes

2. if j < -3.89999999999999978e-47 or 1.0799999999999999e24 < j

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around 0

      \[\leadsto \color{blue}{j \cdot \left(a \cdot c - i \cdot y\right) + x \cdot \left(y \cdot z - a \cdot t\right)} \]
   3. Step-by-step derivation

      1. lower-fma.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 N/A

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

      5. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      6. lower--.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      7. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      8. lower-*.f64 61.4%

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

   4. Applied rewrites 61.4%

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

   5. Taylor expanded in x around 0

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - \color{blue}{i \cdot y}\right) \]

      2. lower--.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot \color{blue}{y}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

      4. lower-*.f64 38.9%

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

   7. Applied rewrites 38.9%

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]

   if -3.89999999999999978e-47 < j < 3.99999999999999969e-163

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in z around inf

      \[\leadsto \color{blue}{z \cdot \left(x \cdot y - b \cdot c\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 38.5%

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

   4. Applied rewrites 38.5%

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

   if 3.99999999999999969e-163 < j < 1.0799999999999999e24

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in t around -inf

      \[\leadsto \color{blue}{-1 \cdot \left(t \cdot \left(a \cdot x - b \cdot i\right)\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto -1 \cdot \color{blue}{\left(t \cdot \left(a \cdot x - b \cdot i\right)\right)} \]

      2. lower-*.f64 N/A

         \[\leadsto -1 \cdot \left(t \cdot \color{blue}{\left(a \cdot x - b \cdot i\right)}\right) \]

      3. lower--.f64 N/A

         \[\leadsto -1 \cdot \left(t \cdot \left(a \cdot x - \color{blue}{b \cdot i}\right)\right) \]

      4. lower-*.f64 N/A

         \[\leadsto -1 \cdot \left(t \cdot \left(a \cdot x - \color{blue}{b} \cdot i\right)\right) \]

      5. lower-*.f64 39.7%

         \[\leadsto -1 \cdot \left(t \cdot \left(a \cdot x - b \cdot \color{blue}{i}\right)\right) \]

   4. Applied rewrites 39.7%

      \[\leadsto \color{blue}{-1 \cdot \left(t \cdot \left(a \cdot x - b \cdot i\right)\right)} \]
   5. Step-by-step derivation

      1. lift-*.f64 N/A

         \[\leadsto -1 \cdot \color{blue}{\left(t \cdot \left(a \cdot x - b \cdot i\right)\right)} \]

      2. mul-1-neg N/A

         \[\leadsto \mathsf{neg}\left(t \cdot \left(a \cdot x - b \cdot i\right)\right) \]

      3. lift-*.f64 N/A

         \[\leadsto \mathsf{neg}\left(t \cdot \left(a \cdot x - b \cdot i\right)\right) \]

      4. *-commutative N/A

         \[\leadsto \mathsf{neg}\left(\left(a \cdot x - b \cdot i\right) \cdot t\right) \]

      5. distribute-lft-neg-in N/A

         \[\leadsto \left(\mathsf{neg}\left(\left(a \cdot x - b \cdot i\right)\right)\right) \cdot \color{blue}{t} \]

      6. lift--.f64 N/A

         \[\leadsto \left(\mathsf{neg}\left(\left(a \cdot x - b \cdot i\right)\right)\right) \cdot t \]

      7. sub-negate-rev N/A

         \[\leadsto \left(b \cdot i - a \cdot x\right) \cdot t \]

      8. lower-*.f64 N/A

         \[\leadsto \left(b \cdot i - a \cdot x\right) \cdot \color{blue}{t} \]

      9. lower--.f64 39.7%

         \[\leadsto \left(b \cdot i - a \cdot x\right) \cdot t \]

   6. Applied rewrites 39.7%

      \[\leadsto \color{blue}{\left(b \cdot i - a \cdot x\right) \cdot t} \]
3. Recombined 3 regimes into one program.
4. Add Preprocessing

Alternative 6: 50.8% accurate, 2.0× speedup

Math

\[\begin{array}{l} t_1 := j \cdot \left(a \cdot c - i \cdot y\right)\\ \mathbf{if}\;j \leq -3.9 \cdot 10^{-47}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq 1.35 \cdot 10^{+23}:\\ \;\;\;\;z \cdot \left(x \cdot y - b \cdot c\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* a c) (* i y)))))
   (if (<= j -3.9e-47)
     t_1
     (if (<= j 1.35e+23) (* z (- (* x y) (* b c))) t_1))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((a * c) - (i * y));
	double tmp;
	if (j <= -3.9e-47) {
		tmp = t_1;
	} else if (j <= 1.35e+23) {
		tmp = z * ((x * y) - (b * c));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = j * ((a * c) - (i * y))
    if (j <= (-3.9d-47)) then
        tmp = t_1
    else if (j <= 1.35d+23) then
        tmp = z * ((x * y) - (b * c))
    else
        tmp = t_1
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((a * c) - (i * y));
	double tmp;
	if (j <= -3.9e-47) {
		tmp = t_1;
	} else if (j <= 1.35e+23) {
		tmp = z * ((x * y) - (b * c));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((a * c) - (i * y))
	tmp = 0
	if j <= -3.9e-47:
		tmp = t_1
	elif j <= 1.35e+23:
		tmp = z * ((x * y) - (b * c))
	else:
		tmp = t_1
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(a * c) - Float64(i * y)))
	tmp = 0.0
	if (j <= -3.9e-47)
		tmp = t_1;
	elseif (j <= 1.35e+23)
		tmp = Float64(z * Float64(Float64(x * y) - Float64(b * c)));
	else
		tmp = t_1;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((a * c) - (i * y));
	tmp = 0.0;
	if (j <= -3.9e-47)
		tmp = t_1;
	elseif (j <= 1.35e+23)
		tmp = z * ((x * y) - (b * c));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(a * c), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -3.9e-47], t$95$1, If[LessEqual[j, 1.35e+23], N[(z * N[(N[(x * y), $MachinePrecision] - N[(b * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]

Derivation

1. Split input into 2 regimes

2. if j < -3.89999999999999978e-47 or 1.3499999999999999e23 < j

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around 0

      \[\leadsto \color{blue}{j \cdot \left(a \cdot c - i \cdot y\right) + x \cdot \left(y \cdot z - a \cdot t\right)} \]
   3. Step-by-step derivation

      1. lower-fma.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 N/A

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

      5. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      6. lower--.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      7. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      8. lower-*.f64 61.4%

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

   4. Applied rewrites 61.4%

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

   5. Taylor expanded in x around 0

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - \color{blue}{i \cdot y}\right) \]

      2. lower--.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot \color{blue}{y}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

      4. lower-*.f64 38.9%

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

   7. Applied rewrites 38.9%

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]

   if -3.89999999999999978e-47 < j < 1.3499999999999999e23

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in z around inf

      \[\leadsto \color{blue}{z \cdot \left(x \cdot y - b \cdot c\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 38.5%

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

   4. Applied rewrites 38.5%

      \[\leadsto \color{blue}{z \cdot \left(x \cdot y - b \cdot c\right)} \]
3. Recombined 2 regimes into one program.
4. Add Preprocessing

Alternative 7: 48.2% accurate, 1.7× speedup

Math

\[\begin{array}{l} t_1 := b \cdot \left(i \cdot t - c \cdot z\right)\\ \mathbf{if}\;b \leq -3.3 \cdot 10^{+142}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq 6.6 \cdot 10^{-49}:\\ \;\;\;\;j \cdot \left(a \cdot c - i \cdot y\right)\\ \mathbf{elif}\;b \leq 2.8 \cdot 10^{+89}:\\ \;\;\;\;a \cdot \left(-1 \cdot \left(t \cdot x\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (- (* i t) (* c z)))))
   (if (<= b -3.3e+142)
     t_1
     (if (<= b 6.6e-49)
       (* j (- (* a c) (* i y)))
       (if (<= b 2.8e+89) (* a (* -1.0 (* t x))) t_1)))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((i * t) - (c * z));
	double tmp;
	if (b <= -3.3e+142) {
		tmp = t_1;
	} else if (b <= 6.6e-49) {
		tmp = j * ((a * c) - (i * y));
	} else if (b <= 2.8e+89) {
		tmp = a * (-1.0 * (t * x));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = b * ((i * t) - (c * z))
    if (b <= (-3.3d+142)) then
        tmp = t_1
    else if (b <= 6.6d-49) then
        tmp = j * ((a * c) - (i * y))
    else if (b <= 2.8d+89) then
        tmp = a * ((-1.0d0) * (t * x))
    else
        tmp = t_1
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * ((i * t) - (c * z));
	double tmp;
	if (b <= -3.3e+142) {
		tmp = t_1;
	} else if (b <= 6.6e-49) {
		tmp = j * ((a * c) - (i * y));
	} else if (b <= 2.8e+89) {
		tmp = a * (-1.0 * (t * x));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * ((i * t) - (c * z))
	tmp = 0
	if b <= -3.3e+142:
		tmp = t_1
	elif b <= 6.6e-49:
		tmp = j * ((a * c) - (i * y))
	elif b <= 2.8e+89:
		tmp = a * (-1.0 * (t * x))
	else:
		tmp = t_1
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(Float64(i * t) - Float64(c * z)))
	tmp = 0.0
	if (b <= -3.3e+142)
		tmp = t_1;
	elseif (b <= 6.6e-49)
		tmp = Float64(j * Float64(Float64(a * c) - Float64(i * y)));
	elseif (b <= 2.8e+89)
		tmp = Float64(a * Float64(-1.0 * Float64(t * x)));
	else
		tmp = t_1;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * ((i * t) - (c * z));
	tmp = 0.0;
	if (b <= -3.3e+142)
		tmp = t_1;
	elseif (b <= 6.6e-49)
		tmp = j * ((a * c) - (i * y));
	elseif (b <= 2.8e+89)
		tmp = a * (-1.0 * (t * x));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(N[(i * t), $MachinePrecision] - N[(c * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -3.3e+142], t$95$1, If[LessEqual[b, 6.6e-49], N[(j * N[(N[(a * c), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 2.8e+89], N[(a * N[(-1.0 * N[(t * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]

Derivation

1. Split input into 3 regimes

2. if b < -3.3000000000000002e142 or 2.7999999999999998e89 < b

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   if -3.3000000000000002e142 < b < 6.6e-49

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around 0

      \[\leadsto \color{blue}{j \cdot \left(a \cdot c - i \cdot y\right) + x \cdot \left(y \cdot z - a \cdot t\right)} \]
   3. Step-by-step derivation

      1. lower-fma.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 N/A

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

      5. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      6. lower--.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      7. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      8. lower-*.f64 61.4%

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

   4. Applied rewrites 61.4%

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

   5. Taylor expanded in x around 0

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - \color{blue}{i \cdot y}\right) \]

      2. lower--.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot \color{blue}{y}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

      4. lower-*.f64 38.9%

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

   7. Applied rewrites 38.9%

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]

   if 6.6e-49 < b < 2.7999999999999998e89

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around inf

      \[\leadsto a \cdot \left(-1 \cdot \color{blue}{\left(t \cdot x\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower-*.f64 22.8%

         \[\leadsto a \cdot \left(-1 \cdot \left(t \cdot x\right)\right) \]

   7. Applied rewrites 22.8%

      \[\leadsto a \cdot \left(-1 \cdot \color{blue}{\left(t \cdot x\right)}\right) \]
3. Recombined 3 regimes into one program.
4. Add Preprocessing

Alternative 8: 42.5% accurate, 1.7× speedup

Math

\[\begin{array}{l} t_1 := j \cdot \left(a \cdot c - i \cdot y\right)\\ \mathbf{if}\;j \leq -3.3 \cdot 10^{-47}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;j \leq -1.02 \cdot 10^{-168}:\\ \;\;\;\;a \cdot \left(-1 \cdot \left(t \cdot x\right)\right)\\ \mathbf{elif}\;j \leq 3.3 \cdot 10^{-93}:\\ \;\;\;\;b \cdot \left(-1 \cdot \left(c \cdot z\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* j (- (* a c) (* i y)))))
   (if (<= j -3.3e-47)
     t_1
     (if (<= j -1.02e-168)
       (* a (* -1.0 (* t x)))
       (if (<= j 3.3e-93) (* b (* -1.0 (* c z))) t_1)))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((a * c) - (i * y));
	double tmp;
	if (j <= -3.3e-47) {
		tmp = t_1;
	} else if (j <= -1.02e-168) {
		tmp = a * (-1.0 * (t * x));
	} else if (j <= 3.3e-93) {
		tmp = b * (-1.0 * (c * z));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = j * ((a * c) - (i * y))
    if (j <= (-3.3d-47)) then
        tmp = t_1
    else if (j <= (-1.02d-168)) then
        tmp = a * ((-1.0d0) * (t * x))
    else if (j <= 3.3d-93) then
        tmp = b * ((-1.0d0) * (c * z))
    else
        tmp = t_1
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = j * ((a * c) - (i * y));
	double tmp;
	if (j <= -3.3e-47) {
		tmp = t_1;
	} else if (j <= -1.02e-168) {
		tmp = a * (-1.0 * (t * x));
	} else if (j <= 3.3e-93) {
		tmp = b * (-1.0 * (c * z));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = j * ((a * c) - (i * y))
	tmp = 0
	if j <= -3.3e-47:
		tmp = t_1
	elif j <= -1.02e-168:
		tmp = a * (-1.0 * (t * x))
	elif j <= 3.3e-93:
		tmp = b * (-1.0 * (c * z))
	else:
		tmp = t_1
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(j * Float64(Float64(a * c) - Float64(i * y)))
	tmp = 0.0
	if (j <= -3.3e-47)
		tmp = t_1;
	elseif (j <= -1.02e-168)
		tmp = Float64(a * Float64(-1.0 * Float64(t * x)));
	elseif (j <= 3.3e-93)
		tmp = Float64(b * Float64(-1.0 * Float64(c * z)));
	else
		tmp = t_1;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = j * ((a * c) - (i * y));
	tmp = 0.0;
	if (j <= -3.3e-47)
		tmp = t_1;
	elseif (j <= -1.02e-168)
		tmp = a * (-1.0 * (t * x));
	elseif (j <= 3.3e-93)
		tmp = b * (-1.0 * (c * z));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(j * N[(N[(a * c), $MachinePrecision] - N[(i * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[j, -3.3e-47], t$95$1, If[LessEqual[j, -1.02e-168], N[(a * N[(-1.0 * N[(t * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[j, 3.3e-93], N[(b * N[(-1.0 * N[(c * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]

Derivation

1. Split input into 3 regimes

2. if j < -3.30000000000000004e-47 or 3.3000000000000001e-93 < j

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around 0

      \[\leadsto \color{blue}{j \cdot \left(a \cdot c - i \cdot y\right) + x \cdot \left(y \cdot z - a \cdot t\right)} \]
   3. Step-by-step derivation

      1. lower-fma.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 N/A

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

      5. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      6. lower--.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      7. lower-*.f64 N/A

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

      8. lower-*.f64 61.4%

         \[\leadsto \mathsf{fma}\left(j, a \cdot c - i \cdot y, x \cdot \left(y \cdot z - a \cdot t\right)\right) \]

   4. Applied rewrites 61.4%

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

   5. Taylor expanded in x around 0

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - \color{blue}{i \cdot y}\right) \]

      2. lower--.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot \color{blue}{y}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

      4. lower-*.f64 38.9%

         \[\leadsto j \cdot \left(a \cdot c - i \cdot y\right) \]

   7. Applied rewrites 38.9%

      \[\leadsto j \cdot \color{blue}{\left(a \cdot c - i \cdot y\right)} \]

   if -3.30000000000000004e-47 < j < -1.01999999999999999e-168

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around inf

      \[\leadsto a \cdot \left(-1 \cdot \color{blue}{\left(t \cdot x\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower-*.f64 22.8%

         \[\leadsto a \cdot \left(-1 \cdot \left(t \cdot x\right)\right) \]

   7. Applied rewrites 22.8%

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

   if -1.01999999999999999e-168 < j < 3.3000000000000001e-93

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   5. Taylor expanded in z around inf

      \[\leadsto b \cdot \left(-1 \cdot \color{blue}{\left(c \cdot z\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \left(-1 \cdot \left(c \cdot \color{blue}{z}\right)\right) \]

      2. lower-*.f64 22.1%

         \[\leadsto b \cdot \left(-1 \cdot \left(c \cdot z\right)\right) \]

   7. Applied rewrites 22.1%

      \[\leadsto b \cdot \left(-1 \cdot \color{blue}{\left(c \cdot z\right)}\right) \]
3. Recombined 3 regimes into one program.
4. Add Preprocessing

Alternative 9: 30.4% accurate, 1.4× speedup

Math

\[\begin{array}{l} t_1 := b \cdot \left(i \cdot t\right)\\ \mathbf{if}\;b \leq -1.26 \cdot 10^{+262}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -3 \cdot 10^{+19}:\\ \;\;\;\;b \cdot \left(-1 \cdot \left(c \cdot z\right)\right)\\ \mathbf{elif}\;b \leq -1.85 \cdot 10^{-270}:\\ \;\;\;\;a \cdot \left(c \cdot j\right)\\ \mathbf{elif}\;b \leq 1.8 \cdot 10^{+90}:\\ \;\;\;\;a \cdot \left(-1 \cdot \left(t \cdot x\right)\right)\\ \mathbf{elif}\;b \leq 4.6 \cdot 10^{+137}:\\ \;\;\;\;t\_1\\ \mathbf{else}:\\ \;\;\;\;z \cdot \left(-1 \cdot \left(b \cdot c\right)\right)\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (* i t))))
   (if (<= b -1.26e+262)
     t_1
     (if (<= b -3e+19)
       (* b (* -1.0 (* c z)))
       (if (<= b -1.85e-270)
         (* a (* c j))
         (if (<= b 1.8e+90)
           (* a (* -1.0 (* t x)))
           (if (<= b 4.6e+137) t_1 (* z (* -1.0 (* b c))))))))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * (i * t);
	double tmp;
	if (b <= -1.26e+262) {
		tmp = t_1;
	} else if (b <= -3e+19) {
		tmp = b * (-1.0 * (c * z));
	} else if (b <= -1.85e-270) {
		tmp = a * (c * j);
	} else if (b <= 1.8e+90) {
		tmp = a * (-1.0 * (t * x));
	} else if (b <= 4.6e+137) {
		tmp = t_1;
	} else {
		tmp = z * (-1.0 * (b * c));
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = b * (i * t)
    if (b <= (-1.26d+262)) then
        tmp = t_1
    else if (b <= (-3d+19)) then
        tmp = b * ((-1.0d0) * (c * z))
    else if (b <= (-1.85d-270)) then
        tmp = a * (c * j)
    else if (b <= 1.8d+90) then
        tmp = a * ((-1.0d0) * (t * x))
    else if (b <= 4.6d+137) then
        tmp = t_1
    else
        tmp = z * ((-1.0d0) * (b * c))
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * (i * t);
	double tmp;
	if (b <= -1.26e+262) {
		tmp = t_1;
	} else if (b <= -3e+19) {
		tmp = b * (-1.0 * (c * z));
	} else if (b <= -1.85e-270) {
		tmp = a * (c * j);
	} else if (b <= 1.8e+90) {
		tmp = a * (-1.0 * (t * x));
	} else if (b <= 4.6e+137) {
		tmp = t_1;
	} else {
		tmp = z * (-1.0 * (b * c));
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * (i * t)
	tmp = 0
	if b <= -1.26e+262:
		tmp = t_1
	elif b <= -3e+19:
		tmp = b * (-1.0 * (c * z))
	elif b <= -1.85e-270:
		tmp = a * (c * j)
	elif b <= 1.8e+90:
		tmp = a * (-1.0 * (t * x))
	elif b <= 4.6e+137:
		tmp = t_1
	else:
		tmp = z * (-1.0 * (b * c))
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(i * t))
	tmp = 0.0
	if (b <= -1.26e+262)
		tmp = t_1;
	elseif (b <= -3e+19)
		tmp = Float64(b * Float64(-1.0 * Float64(c * z)));
	elseif (b <= -1.85e-270)
		tmp = Float64(a * Float64(c * j));
	elseif (b <= 1.8e+90)
		tmp = Float64(a * Float64(-1.0 * Float64(t * x)));
	elseif (b <= 4.6e+137)
		tmp = t_1;
	else
		tmp = Float64(z * Float64(-1.0 * Float64(b * c)));
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * (i * t);
	tmp = 0.0;
	if (b <= -1.26e+262)
		tmp = t_1;
	elseif (b <= -3e+19)
		tmp = b * (-1.0 * (c * z));
	elseif (b <= -1.85e-270)
		tmp = a * (c * j);
	elseif (b <= 1.8e+90)
		tmp = a * (-1.0 * (t * x));
	elseif (b <= 4.6e+137)
		tmp = t_1;
	else
		tmp = z * (-1.0 * (b * c));
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(i * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1.26e+262], t$95$1, If[LessEqual[b, -3e+19], N[(b * N[(-1.0 * N[(c * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, -1.85e-270], N[(a * N[(c * j), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 1.8e+90], N[(a * N[(-1.0 * N[(t * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 4.6e+137], t$95$1, N[(z * N[(-1.0 * N[(b * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]

Derivation

1. Split input into 5 regimes

2. if b < -1.26000000000000004e262 or 1.8e90 < b < 4.59999999999999999e137

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   5. Taylor expanded in z around 0

      \[\leadsto b \cdot \left(i \cdot \color{blue}{t}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 21.7%

         \[\leadsto b \cdot \left(i \cdot t\right) \]

   7. Applied rewrites 21.7%

      \[\leadsto b \cdot \left(i \cdot \color{blue}{t}\right) \]

   if -1.26000000000000004e262 < b < -3e19

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   5. Taylor expanded in z around inf

      \[\leadsto b \cdot \left(-1 \cdot \color{blue}{\left(c \cdot z\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \left(-1 \cdot \left(c \cdot \color{blue}{z}\right)\right) \]

      2. lower-*.f64 22.1%

         \[\leadsto b \cdot \left(-1 \cdot \left(c \cdot z\right)\right) \]

   7. Applied rewrites 22.1%

      \[\leadsto b \cdot \left(-1 \cdot \color{blue}{\left(c \cdot z\right)}\right) \]

   if -3e19 < b < -1.8500000000000001e-270

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around 0

      \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 22.5%

         \[\leadsto a \cdot \left(c \cdot j\right) \]

   7. Applied rewrites 22.5%

      \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]

   if -1.8500000000000001e-270 < b < 1.8e90

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around inf

      \[\leadsto a \cdot \left(-1 \cdot \color{blue}{\left(t \cdot x\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower-*.f64 22.8%

         \[\leadsto a \cdot \left(-1 \cdot \left(t \cdot x\right)\right) \]

   7. Applied rewrites 22.8%

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

   if 4.59999999999999999e137 < b

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in z around inf

      \[\leadsto \color{blue}{z \cdot \left(x \cdot y - b \cdot c\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower--.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-*.f64 38.5%

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

   4. Applied rewrites 38.5%

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

   5. Taylor expanded in x around 0

      \[\leadsto z \cdot \left(-1 \cdot \color{blue}{\left(b \cdot c\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto z \cdot \left(-1 \cdot \left(b \cdot \color{blue}{c}\right)\right) \]

      2. lower-*.f64 21.9%

         \[\leadsto z \cdot \left(-1 \cdot \left(b \cdot c\right)\right) \]

   7. Applied rewrites 21.9%

      \[\leadsto z \cdot \left(-1 \cdot \color{blue}{\left(b \cdot c\right)}\right) \]
3. Recombined 5 regimes into one program.
4. Add Preprocessing

Alternative 10: 29.6% accurate, 1.4× speedup

Math

\[\begin{array}{l} t_1 := b \cdot \left(-1 \cdot \left(c \cdot z\right)\right)\\ t_2 := b \cdot \left(i \cdot t\right)\\ \mathbf{if}\;b \leq -1.26 \cdot 10^{+262}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;b \leq -3 \cdot 10^{+19}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -1.85 \cdot 10^{-270}:\\ \;\;\;\;a \cdot \left(c \cdot j\right)\\ \mathbf{elif}\;b \leq 1.8 \cdot 10^{+90}:\\ \;\;\;\;a \cdot \left(-1 \cdot \left(t \cdot x\right)\right)\\ \mathbf{elif}\;b \leq 7.8 \cdot 10^{+142}:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (* -1.0 (* c z)))) (t_2 (* b (* i t))))
   (if (<= b -1.26e+262)
     t_2
     (if (<= b -3e+19)
       t_1
       (if (<= b -1.85e-270)
         (* a (* c j))
         (if (<= b 1.8e+90)
           (* a (* -1.0 (* t x)))
           (if (<= b 7.8e+142) t_2 t_1)))))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * (-1.0 * (c * z));
	double t_2 = b * (i * t);
	double tmp;
	if (b <= -1.26e+262) {
		tmp = t_2;
	} else if (b <= -3e+19) {
		tmp = t_1;
	} else if (b <= -1.85e-270) {
		tmp = a * (c * j);
	} else if (b <= 1.8e+90) {
		tmp = a * (-1.0 * (t * x));
	} else if (b <= 7.8e+142) {
		tmp = t_2;
	} else {
		tmp = t_1;
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = b * ((-1.0d0) * (c * z))
    t_2 = b * (i * t)
    if (b <= (-1.26d+262)) then
        tmp = t_2
    else if (b <= (-3d+19)) then
        tmp = t_1
    else if (b <= (-1.85d-270)) then
        tmp = a * (c * j)
    else if (b <= 1.8d+90) then
        tmp = a * ((-1.0d0) * (t * x))
    else if (b <= 7.8d+142) then
        tmp = t_2
    else
        tmp = t_1
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * (-1.0 * (c * z));
	double t_2 = b * (i * t);
	double tmp;
	if (b <= -1.26e+262) {
		tmp = t_2;
	} else if (b <= -3e+19) {
		tmp = t_1;
	} else if (b <= -1.85e-270) {
		tmp = a * (c * j);
	} else if (b <= 1.8e+90) {
		tmp = a * (-1.0 * (t * x));
	} else if (b <= 7.8e+142) {
		tmp = t_2;
	} else {
		tmp = t_1;
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * (-1.0 * (c * z))
	t_2 = b * (i * t)
	tmp = 0
	if b <= -1.26e+262:
		tmp = t_2
	elif b <= -3e+19:
		tmp = t_1
	elif b <= -1.85e-270:
		tmp = a * (c * j)
	elif b <= 1.8e+90:
		tmp = a * (-1.0 * (t * x))
	elif b <= 7.8e+142:
		tmp = t_2
	else:
		tmp = t_1
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(-1.0 * Float64(c * z)))
	t_2 = Float64(b * Float64(i * t))
	tmp = 0.0
	if (b <= -1.26e+262)
		tmp = t_2;
	elseif (b <= -3e+19)
		tmp = t_1;
	elseif (b <= -1.85e-270)
		tmp = Float64(a * Float64(c * j));
	elseif (b <= 1.8e+90)
		tmp = Float64(a * Float64(-1.0 * Float64(t * x)));
	elseif (b <= 7.8e+142)
		tmp = t_2;
	else
		tmp = t_1;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * (-1.0 * (c * z));
	t_2 = b * (i * t);
	tmp = 0.0;
	if (b <= -1.26e+262)
		tmp = t_2;
	elseif (b <= -3e+19)
		tmp = t_1;
	elseif (b <= -1.85e-270)
		tmp = a * (c * j);
	elseif (b <= 1.8e+90)
		tmp = a * (-1.0 * (t * x));
	elseif (b <= 7.8e+142)
		tmp = t_2;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(-1.0 * N[(c * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(b * N[(i * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1.26e+262], t$95$2, If[LessEqual[b, -3e+19], t$95$1, If[LessEqual[b, -1.85e-270], N[(a * N[(c * j), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 1.8e+90], N[(a * N[(-1.0 * N[(t * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 7.8e+142], t$95$2, t$95$1]]]]]]]

Derivation

1. Split input into 4 regimes

2. if b < -1.26000000000000004e262 or 1.8e90 < b < 7.8000000000000001e142

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   5. Taylor expanded in z around 0

      \[\leadsto b \cdot \left(i \cdot \color{blue}{t}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 21.7%

         \[\leadsto b \cdot \left(i \cdot t\right) \]

   7. Applied rewrites 21.7%

      \[\leadsto b \cdot \left(i \cdot \color{blue}{t}\right) \]

   if -1.26000000000000004e262 < b < -3e19 or 7.8000000000000001e142 < b

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   5. Taylor expanded in z around inf

      \[\leadsto b \cdot \left(-1 \cdot \color{blue}{\left(c \cdot z\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \left(-1 \cdot \left(c \cdot \color{blue}{z}\right)\right) \]

      2. lower-*.f64 22.1%

         \[\leadsto b \cdot \left(-1 \cdot \left(c \cdot z\right)\right) \]

   7. Applied rewrites 22.1%

      \[\leadsto b \cdot \left(-1 \cdot \color{blue}{\left(c \cdot z\right)}\right) \]

   if -3e19 < b < -1.8500000000000001e-270

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around 0

      \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 22.5%

         \[\leadsto a \cdot \left(c \cdot j\right) \]

   7. Applied rewrites 22.5%

      \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]

   if -1.8500000000000001e-270 < b < 1.8e90

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around inf

      \[\leadsto a \cdot \left(-1 \cdot \color{blue}{\left(t \cdot x\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower-*.f64 22.8%

         \[\leadsto a \cdot \left(-1 \cdot \left(t \cdot x\right)\right) \]

   7. Applied rewrites 22.8%

      \[\leadsto a \cdot \left(-1 \cdot \color{blue}{\left(t \cdot x\right)}\right) \]
3. Recombined 4 regimes into one program.
4. Add Preprocessing

Alternative 11: 29.5% accurate, 1.9× speedup

Math

\[\begin{array}{l} t_1 := b \cdot \left(i \cdot t\right)\\ \mathbf{if}\;b \leq -1.65 \cdot 10^{+194}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;b \leq -1.85 \cdot 10^{-270}:\\ \;\;\;\;a \cdot \left(c \cdot j\right)\\ \mathbf{elif}\;b \leq 1.8 \cdot 10^{+90}:\\ \;\;\;\;a \cdot \left(-1 \cdot \left(t \cdot x\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* b (* i t))))
   (if (<= b -1.65e+194)
     t_1
     (if (<= b -1.85e-270)
       (* a (* c j))
       (if (<= b 1.8e+90) (* a (* -1.0 (* t x))) t_1)))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * (i * t);
	double tmp;
	if (b <= -1.65e+194) {
		tmp = t_1;
	} else if (b <= -1.85e-270) {
		tmp = a * (c * j);
	} else if (b <= 1.8e+90) {
		tmp = a * (-1.0 * (t * x));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = b * (i * t)
    if (b <= (-1.65d+194)) then
        tmp = t_1
    else if (b <= (-1.85d-270)) then
        tmp = a * (c * j)
    else if (b <= 1.8d+90) then
        tmp = a * ((-1.0d0) * (t * x))
    else
        tmp = t_1
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = b * (i * t);
	double tmp;
	if (b <= -1.65e+194) {
		tmp = t_1;
	} else if (b <= -1.85e-270) {
		tmp = a * (c * j);
	} else if (b <= 1.8e+90) {
		tmp = a * (-1.0 * (t * x));
	} else {
		tmp = t_1;
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = b * (i * t)
	tmp = 0
	if b <= -1.65e+194:
		tmp = t_1
	elif b <= -1.85e-270:
		tmp = a * (c * j)
	elif b <= 1.8e+90:
		tmp = a * (-1.0 * (t * x))
	else:
		tmp = t_1
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(b * Float64(i * t))
	tmp = 0.0
	if (b <= -1.65e+194)
		tmp = t_1;
	elseif (b <= -1.85e-270)
		tmp = Float64(a * Float64(c * j));
	elseif (b <= 1.8e+90)
		tmp = Float64(a * Float64(-1.0 * Float64(t * x)));
	else
		tmp = t_1;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = b * (i * t);
	tmp = 0.0;
	if (b <= -1.65e+194)
		tmp = t_1;
	elseif (b <= -1.85e-270)
		tmp = a * (c * j);
	elseif (b <= 1.8e+90)
		tmp = a * (-1.0 * (t * x));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(b * N[(i * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -1.65e+194], t$95$1, If[LessEqual[b, -1.85e-270], N[(a * N[(c * j), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 1.8e+90], N[(a * N[(-1.0 * N[(t * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]

Derivation

1. Split input into 3 regimes

2. if b < -1.64999999999999992e194 or 1.8e90 < b

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   5. Taylor expanded in z around 0

      \[\leadsto b \cdot \left(i \cdot \color{blue}{t}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 21.7%

         \[\leadsto b \cdot \left(i \cdot t\right) \]

   7. Applied rewrites 21.7%

      \[\leadsto b \cdot \left(i \cdot \color{blue}{t}\right) \]

   if -1.64999999999999992e194 < b < -1.8500000000000001e-270

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around 0

      \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 22.5%

         \[\leadsto a \cdot \left(c \cdot j\right) \]

   7. Applied rewrites 22.5%

      \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]

   if -1.8500000000000001e-270 < b < 1.8e90

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around inf

      \[\leadsto a \cdot \left(-1 \cdot \color{blue}{\left(t \cdot x\right)}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 N/A

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

      2. lower-*.f64 22.8%

         \[\leadsto a \cdot \left(-1 \cdot \left(t \cdot x\right)\right) \]

   7. Applied rewrites 22.8%

      \[\leadsto a \cdot \left(-1 \cdot \color{blue}{\left(t \cdot x\right)}\right) \]
3. Recombined 3 regimes into one program.
4. Add Preprocessing

Alternative 12: 27.9% accurate, 2.8× speedup

Math

\[\begin{array}{l} t_1 := a \cdot \left(c \cdot j\right)\\ \mathbf{if}\;c \leq -2.3 \cdot 10^{+16}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;c \leq 8.3 \cdot 10^{+18}:\\ \;\;\;\;b \cdot \left(i \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \]

FPCore

(FPCore (x y z t a b c i j)
 :precision binary64
 (let* ((t_1 (* a (* c j))))
   (if (<= c -2.3e+16) t_1 (if (<= c 8.3e+18) (* b (* i t)) t_1))))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = a * (c * j);
	double tmp;
	if (c <= -2.3e+16) {
		tmp = t_1;
	} else if (c <= 8.3e+18) {
		tmp = b * (i * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    real(8) :: t_1
    real(8) :: tmp
    t_1 = a * (c * j)
    if (c <= (-2.3d+16)) then
        tmp = t_1
    else if (c <= 8.3d+18) then
        tmp = b * (i * t)
    else
        tmp = t_1
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	double t_1 = a * (c * j);
	double tmp;
	if (c <= -2.3e+16) {
		tmp = t_1;
	} else if (c <= 8.3e+18) {
		tmp = b * (i * t);
	} else {
		tmp = t_1;
	}
	return tmp;
}

Python

def code(x, y, z, t, a, b, c, i, j):
	t_1 = a * (c * j)
	tmp = 0
	if c <= -2.3e+16:
		tmp = t_1
	elif c <= 8.3e+18:
		tmp = b * (i * t)
	else:
		tmp = t_1
	return tmp

Julia

function code(x, y, z, t, a, b, c, i, j)
	t_1 = Float64(a * Float64(c * j))
	tmp = 0.0
	if (c <= -2.3e+16)
		tmp = t_1;
	elseif (c <= 8.3e+18)
		tmp = Float64(b * Float64(i * t));
	else
		tmp = t_1;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z, t, a, b, c, i, j)
	t_1 = a * (c * j);
	tmp = 0.0;
	if (c <= -2.3e+16)
		tmp = t_1;
	elseif (c <= 8.3e+18)
		tmp = b * (i * t);
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := Block[{t$95$1 = N[(a * N[(c * j), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[c, -2.3e+16], t$95$1, If[LessEqual[c, 8.3e+18], N[(b * N[(i * t), $MachinePrecision]), $MachinePrecision], t$95$1]]]

Derivation

1. Split input into 2 regimes

2. if c < -2.3e16 or 8.3e18 < c

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in a around inf

      \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

      2. lower-fma.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

      3. lower-*.f64 N/A

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

      4. lower-*.f64 40.0%

         \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

   4. Applied rewrites 40.0%

      \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

   5. Taylor expanded in x around 0

      \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 22.5%

         \[\leadsto a \cdot \left(c \cdot j\right) \]

   7. Applied rewrites 22.5%

      \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]

   if -2.3e16 < c < 8.3e18

   1. Initial program 74.1%

      \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

   2. Taylor expanded in b around inf

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]
   3. Step-by-step derivation

      1. lower-*.f64 N/A

         \[\leadsto b \cdot \color{blue}{\left(i \cdot t - c \cdot z\right)} \]

      2. lower--.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c \cdot z}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto b \cdot \left(i \cdot t - \color{blue}{c} \cdot z\right) \]

      4. lower-*.f64 38.6%

         \[\leadsto b \cdot \left(i \cdot t - c \cdot \color{blue}{z}\right) \]

   4. Applied rewrites 38.6%

      \[\leadsto \color{blue}{b \cdot \left(i \cdot t - c \cdot z\right)} \]

   5. Taylor expanded in z around 0

      \[\leadsto b \cdot \left(i \cdot \color{blue}{t}\right) \]
   6. Step-by-step derivation

      1. lower-*.f64 21.7%

         \[\leadsto b \cdot \left(i \cdot t\right) \]

   7. Applied rewrites 21.7%

      \[\leadsto b \cdot \left(i \cdot \color{blue}{t}\right) \]
3. Recombined 2 regimes into one program.
4. Add Preprocessing

Alternative 13: 22.5% accurate, 5.9× speedup

Math

\[a \cdot \left(c \cdot j\right) \]

FPCore

(FPCore (x y z t a b c i j) :precision binary64 (* a (* c j)))

C

double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return a * (c * j);
}

Fortran

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, t, a, b, c, i, j)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8), intent (in) :: t
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: c
    real(8), intent (in) :: i
    real(8), intent (in) :: j
    code = a * (c * j)
end function

Java

public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j) {
	return a * (c * j);
}

Python

def code(x, y, z, t, a, b, c, i, j):
	return a * (c * j)

Julia

function code(x, y, z, t, a, b, c, i, j)
	return Float64(a * Float64(c * j))
end

MATLAB

function tmp = code(x, y, z, t, a, b, c, i, j)
	tmp = a * (c * j);
end

Wolfram

code[x_, y_, z_, t_, a_, b_, c_, i_, j_] := N[(a * N[(c * j), $MachinePrecision]), $MachinePrecision]

Derivation

1. Initial program 74.1%

   \[\left(x \cdot \left(y \cdot z - t \cdot a\right) - b \cdot \left(c \cdot z - t \cdot i\right)\right) + j \cdot \left(c \cdot a - y \cdot i\right) \]

2. Taylor expanded in a around inf

   \[\leadsto \color{blue}{a \cdot \left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]
3. Step-by-step derivation

   1. lower-*.f64 N/A

      \[\leadsto a \cdot \color{blue}{\left(-1 \cdot \left(t \cdot x\right) + c \cdot j\right)} \]

   2. lower-fma.f64 N/A

      \[\leadsto a \cdot \mathsf{fma}\left(-1, \color{blue}{t \cdot x}, c \cdot j\right) \]

   3. lower-*.f64 N/A

      \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot \color{blue}{x}, c \cdot j\right) \]

   4. lower-*.f64 40.0%

      \[\leadsto a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right) \]

4. Applied rewrites 40.0%

   \[\leadsto \color{blue}{a \cdot \mathsf{fma}\left(-1, t \cdot x, c \cdot j\right)} \]

5. Taylor expanded in x around 0

   \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]
6. Step-by-step derivation

   1. lower-*.f64 22.5%

      \[\leadsto a \cdot \left(c \cdot j\right) \]

7. Applied rewrites 22.5%

   \[\leadsto a \cdot \left(c \cdot \color{blue}{j}\right) \]
8. Add Preprocessing

Reproduce

herbie shell --seed 2025183 
(FPCore (x y z t a b c i j)
  :name "Data.Colour.Matrix:determinant from colour-2.3.3, A"
  :precision binary64
  (+ (- (* x (- (* y z) (* t a))) (* b (- (* c z) (* t i)))) (* j (- (* c a) (* y i)))))