Diagrams.Solve.Polynomial:quartForm from diagrams-solve-0.1, C

Percentage Accurate: 97.7% → 98.9%
Time: 8.4s
Alternatives: 12
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (+ (- (+ (* x y) (/ (* z t) 16.0)) (/ (* a b) 4.0)) c))
double code(double x, double y, double z, double t, double a, double b, double c) {
	return (((x * y) + ((z * t) / 16.0)) - ((a * b) / 4.0)) + c;
}
real(8) function code(x, y, z, t, a, b, c)
    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
    code = (((x * y) + ((z * t) / 16.0d0)) - ((a * b) / 4.0d0)) + c
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	return (((x * y) + ((z * t) / 16.0)) - ((a * b) / 4.0)) + c;
}
def code(x, y, z, t, a, b, c):
	return (((x * y) + ((z * t) / 16.0)) - ((a * b) / 4.0)) + c
function code(x, y, z, t, a, b, c)
	return Float64(Float64(Float64(Float64(x * y) + Float64(Float64(z * t) / 16.0)) - Float64(Float64(a * b) / 4.0)) + c)
end
function tmp = code(x, y, z, t, a, b, c)
	tmp = (((x * y) + ((z * t) / 16.0)) - ((a * b) / 4.0)) + c;
end
code[x_, y_, z_, t_, a_, b_, c_] := N[(N[(N[(N[(x * y), $MachinePrecision] + N[(N[(z * t), $MachinePrecision] / 16.0), $MachinePrecision]), $MachinePrecision] - N[(N[(a * b), $MachinePrecision] / 4.0), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]
\begin{array}{l}

\\
\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 12 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 97.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (+ (- (+ (* x y) (/ (* z t) 16.0)) (/ (* a b) 4.0)) c))
double code(double x, double y, double z, double t, double a, double b, double c) {
	return (((x * y) + ((z * t) / 16.0)) - ((a * b) / 4.0)) + c;
}
real(8) function code(x, y, z, t, a, b, c)
    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
    code = (((x * y) + ((z * t) / 16.0d0)) - ((a * b) / 4.0d0)) + c
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	return (((x * y) + ((z * t) / 16.0)) - ((a * b) / 4.0)) + c;
}
def code(x, y, z, t, a, b, c):
	return (((x * y) + ((z * t) / 16.0)) - ((a * b) / 4.0)) + c
function code(x, y, z, t, a, b, c)
	return Float64(Float64(Float64(Float64(x * y) + Float64(Float64(z * t) / 16.0)) - Float64(Float64(a * b) / 4.0)) + c)
end
function tmp = code(x, y, z, t, a, b, c)
	tmp = (((x * y) + ((z * t) / 16.0)) - ((a * b) / 4.0)) + c;
end
code[x_, y_, z_, t_, a_, b_, c_] := N[(N[(N[(N[(x * y), $MachinePrecision] + N[(N[(z * t), $MachinePrecision] / 16.0), $MachinePrecision]), $MachinePrecision] - N[(N[(a * b), $MachinePrecision] / 4.0), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]
\begin{array}{l}

\\
\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c
\end{array}

Alternative 1: 98.9% accurate, 0.1× speedup?

\[\begin{array}{l} \\ \mathsf{fma}\left(x, y, \mathsf{fma}\left(z, t \cdot 0.0625, b \cdot \left(a \cdot -0.25\right)\right)\right) + c \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (+ (fma x y (fma z (* t 0.0625) (* b (* a -0.25)))) c))
double code(double x, double y, double z, double t, double a, double b, double c) {
	return fma(x, y, fma(z, (t * 0.0625), (b * (a * -0.25)))) + c;
}
function code(x, y, z, t, a, b, c)
	return Float64(fma(x, y, fma(z, Float64(t * 0.0625), Float64(b * Float64(a * -0.25)))) + c)
end
code[x_, y_, z_, t_, a_, b_, c_] := N[(N[(x * y + N[(z * N[(t * 0.0625), $MachinePrecision] + N[(b * N[(a * -0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + c), $MachinePrecision]
\begin{array}{l}

\\
\mathsf{fma}\left(x, y, \mathsf{fma}\left(z, t \cdot 0.0625, b \cdot \left(a \cdot -0.25\right)\right)\right) + c
\end{array}
Derivation
  1. Initial program 98.4%

    \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
  2. Step-by-step derivation
    1. associate--l+98.4%

      \[\leadsto \color{blue}{\left(x \cdot y + \left(\frac{z \cdot t}{16} - \frac{a \cdot b}{4}\right)\right)} + c \]
  3. Simplified100.0%

    \[\leadsto \color{blue}{\mathsf{fma}\left(x, y, \mathsf{fma}\left(z, t \cdot 0.0625, b \cdot \left(a \cdot -0.25\right)\right)\right) + c} \]
  4. Add Preprocessing
  5. Add Preprocessing

Alternative 2: 64.0% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := c + a \cdot \left(b \cdot -0.25\right)\\ t_2 := c + 0.0625 \cdot \left(z \cdot t\right)\\ \mathbf{if}\;x \cdot y \leq -4.3 \cdot 10^{+106}:\\ \;\;\;\;c + x \cdot y\\ \mathbf{elif}\;x \cdot y \leq -7.6 \cdot 10^{-147}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \cdot y \leq 5.9 \cdot 10^{-282}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;x \cdot y \leq 1.75 \cdot 10^{-146}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \cdot y \leq 2.5 \cdot 10^{+18}:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (let* ((t_1 (+ c (* a (* b -0.25)))) (t_2 (+ c (* 0.0625 (* z t)))))
   (if (<= (* x y) -4.3e+106)
     (+ c (* x y))
     (if (<= (* x y) -7.6e-147)
       t_1
       (if (<= (* x y) 5.9e-282)
         t_2
         (if (<= (* x y) 1.75e-146)
           t_1
           (if (<= (* x y) 2.5e+18)
             t_2
             (* b (- (/ (* x y) b) (* a 0.25))))))))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = c + (a * (b * -0.25));
	double t_2 = c + (0.0625 * (z * t));
	double tmp;
	if ((x * y) <= -4.3e+106) {
		tmp = c + (x * y);
	} else if ((x * y) <= -7.6e-147) {
		tmp = t_1;
	} else if ((x * y) <= 5.9e-282) {
		tmp = t_2;
	} else if ((x * y) <= 1.75e-146) {
		tmp = t_1;
	} else if ((x * y) <= 2.5e+18) {
		tmp = t_2;
	} else {
		tmp = b * (((x * y) / b) - (a * 0.25));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = c + (a * (b * (-0.25d0)))
    t_2 = c + (0.0625d0 * (z * t))
    if ((x * y) <= (-4.3d+106)) then
        tmp = c + (x * y)
    else if ((x * y) <= (-7.6d-147)) then
        tmp = t_1
    else if ((x * y) <= 5.9d-282) then
        tmp = t_2
    else if ((x * y) <= 1.75d-146) then
        tmp = t_1
    else if ((x * y) <= 2.5d+18) then
        tmp = t_2
    else
        tmp = b * (((x * y) / b) - (a * 0.25d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = c + (a * (b * -0.25));
	double t_2 = c + (0.0625 * (z * t));
	double tmp;
	if ((x * y) <= -4.3e+106) {
		tmp = c + (x * y);
	} else if ((x * y) <= -7.6e-147) {
		tmp = t_1;
	} else if ((x * y) <= 5.9e-282) {
		tmp = t_2;
	} else if ((x * y) <= 1.75e-146) {
		tmp = t_1;
	} else if ((x * y) <= 2.5e+18) {
		tmp = t_2;
	} else {
		tmp = b * (((x * y) / b) - (a * 0.25));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	t_1 = c + (a * (b * -0.25))
	t_2 = c + (0.0625 * (z * t))
	tmp = 0
	if (x * y) <= -4.3e+106:
		tmp = c + (x * y)
	elif (x * y) <= -7.6e-147:
		tmp = t_1
	elif (x * y) <= 5.9e-282:
		tmp = t_2
	elif (x * y) <= 1.75e-146:
		tmp = t_1
	elif (x * y) <= 2.5e+18:
		tmp = t_2
	else:
		tmp = b * (((x * y) / b) - (a * 0.25))
	return tmp
function code(x, y, z, t, a, b, c)
	t_1 = Float64(c + Float64(a * Float64(b * -0.25)))
	t_2 = Float64(c + Float64(0.0625 * Float64(z * t)))
	tmp = 0.0
	if (Float64(x * y) <= -4.3e+106)
		tmp = Float64(c + Float64(x * y));
	elseif (Float64(x * y) <= -7.6e-147)
		tmp = t_1;
	elseif (Float64(x * y) <= 5.9e-282)
		tmp = t_2;
	elseif (Float64(x * y) <= 1.75e-146)
		tmp = t_1;
	elseif (Float64(x * y) <= 2.5e+18)
		tmp = t_2;
	else
		tmp = Float64(b * Float64(Float64(Float64(x * y) / b) - Float64(a * 0.25)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	t_1 = c + (a * (b * -0.25));
	t_2 = c + (0.0625 * (z * t));
	tmp = 0.0;
	if ((x * y) <= -4.3e+106)
		tmp = c + (x * y);
	elseif ((x * y) <= -7.6e-147)
		tmp = t_1;
	elseif ((x * y) <= 5.9e-282)
		tmp = t_2;
	elseif ((x * y) <= 1.75e-146)
		tmp = t_1;
	elseif ((x * y) <= 2.5e+18)
		tmp = t_2;
	else
		tmp = b * (((x * y) / b) - (a * 0.25));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := Block[{t$95$1 = N[(c + N[(a * N[(b * -0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(c + N[(0.0625 * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(x * y), $MachinePrecision], -4.3e+106], N[(c + N[(x * y), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], -7.6e-147], t$95$1, If[LessEqual[N[(x * y), $MachinePrecision], 5.9e-282], t$95$2, If[LessEqual[N[(x * y), $MachinePrecision], 1.75e-146], t$95$1, If[LessEqual[N[(x * y), $MachinePrecision], 2.5e+18], t$95$2, N[(b * N[(N[(N[(x * y), $MachinePrecision] / b), $MachinePrecision] - N[(a * 0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := c + a \cdot \left(b \cdot -0.25\right)\\
t_2 := c + 0.0625 \cdot \left(z \cdot t\right)\\
\mathbf{if}\;x \cdot y \leq -4.3 \cdot 10^{+106}:\\
\;\;\;\;c + x \cdot y\\

\mathbf{elif}\;x \cdot y \leq -7.6 \cdot 10^{-147}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \cdot y \leq 5.9 \cdot 10^{-282}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;x \cdot y \leq 1.75 \cdot 10^{-146}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \cdot y \leq 2.5 \cdot 10^{+18}:\\
\;\;\;\;t\_2\\

\mathbf{else}:\\
\;\;\;\;b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if (*.f64 x y) < -4.3e106

    1. Initial program 98.0%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 90.1%

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

    if -4.3e106 < (*.f64 x y) < -7.60000000000000055e-147 or 5.8999999999999997e-282 < (*.f64 x y) < 1.7500000000000001e-146

    1. Initial program 98.5%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 79.8%

      \[\leadsto \color{blue}{-0.25 \cdot \left(a \cdot b\right)} + c \]
    4. Step-by-step derivation
      1. *-commutative79.8%

        \[\leadsto \color{blue}{\left(a \cdot b\right) \cdot -0.25} + c \]
      2. associate-*r*79.8%

        \[\leadsto \color{blue}{a \cdot \left(b \cdot -0.25\right)} + c \]
    5. Simplified79.8%

      \[\leadsto \color{blue}{a \cdot \left(b \cdot -0.25\right)} + c \]

    if -7.60000000000000055e-147 < (*.f64 x y) < 5.8999999999999997e-282 or 1.7500000000000001e-146 < (*.f64 x y) < 2.5e18

    1. Initial program 100.0%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 78.9%

      \[\leadsto \color{blue}{0.0625 \cdot \left(t \cdot z\right)} + c \]

    if 2.5e18 < (*.f64 x y)

    1. Initial program 96.4%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 82.8%

      \[\leadsto \color{blue}{\left(x \cdot y - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]
    4. Taylor expanded in b around inf 67.8%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} + c \]
    5. Taylor expanded in c around 0 64.1%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification78.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -4.3 \cdot 10^{+106}:\\ \;\;\;\;c + x \cdot y\\ \mathbf{elif}\;x \cdot y \leq -7.6 \cdot 10^{-147}:\\ \;\;\;\;c + a \cdot \left(b \cdot -0.25\right)\\ \mathbf{elif}\;x \cdot y \leq 5.9 \cdot 10^{-282}:\\ \;\;\;\;c + 0.0625 \cdot \left(z \cdot t\right)\\ \mathbf{elif}\;x \cdot y \leq 1.75 \cdot 10^{-146}:\\ \;\;\;\;c + a \cdot \left(b \cdot -0.25\right)\\ \mathbf{elif}\;x \cdot y \leq 2.5 \cdot 10^{+18}:\\ \;\;\;\;c + 0.0625 \cdot \left(z \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 65.0% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := c + a \cdot \left(b \cdot -0.25\right)\\ t_2 := c + 0.0625 \cdot \left(z \cdot t\right)\\ t_3 := c + x \cdot y\\ \mathbf{if}\;x \cdot y \leq -7 \cdot 10^{+100}:\\ \;\;\;\;t\_3\\ \mathbf{elif}\;x \cdot y \leq -4.2 \cdot 10^{-147}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \cdot y \leq 1.45 \cdot 10^{-283}:\\ \;\;\;\;t\_2\\ \mathbf{elif}\;x \cdot y \leq 1.35 \cdot 10^{-146}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;x \cdot y \leq 4.2 \cdot 10^{+23}:\\ \;\;\;\;t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_3\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (let* ((t_1 (+ c (* a (* b -0.25))))
        (t_2 (+ c (* 0.0625 (* z t))))
        (t_3 (+ c (* x y))))
   (if (<= (* x y) -7e+100)
     t_3
     (if (<= (* x y) -4.2e-147)
       t_1
       (if (<= (* x y) 1.45e-283)
         t_2
         (if (<= (* x y) 1.35e-146) t_1 (if (<= (* x y) 4.2e+23) t_2 t_3)))))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = c + (a * (b * -0.25));
	double t_2 = c + (0.0625 * (z * t));
	double t_3 = c + (x * y);
	double tmp;
	if ((x * y) <= -7e+100) {
		tmp = t_3;
	} else if ((x * y) <= -4.2e-147) {
		tmp = t_1;
	} else if ((x * y) <= 1.45e-283) {
		tmp = t_2;
	} else if ((x * y) <= 1.35e-146) {
		tmp = t_1;
	} else if ((x * y) <= 4.2e+23) {
		tmp = t_2;
	} else {
		tmp = t_3;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: t_1
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: tmp
    t_1 = c + (a * (b * (-0.25d0)))
    t_2 = c + (0.0625d0 * (z * t))
    t_3 = c + (x * y)
    if ((x * y) <= (-7d+100)) then
        tmp = t_3
    else if ((x * y) <= (-4.2d-147)) then
        tmp = t_1
    else if ((x * y) <= 1.45d-283) then
        tmp = t_2
    else if ((x * y) <= 1.35d-146) then
        tmp = t_1
    else if ((x * y) <= 4.2d+23) then
        tmp = t_2
    else
        tmp = t_3
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = c + (a * (b * -0.25));
	double t_2 = c + (0.0625 * (z * t));
	double t_3 = c + (x * y);
	double tmp;
	if ((x * y) <= -7e+100) {
		tmp = t_3;
	} else if ((x * y) <= -4.2e-147) {
		tmp = t_1;
	} else if ((x * y) <= 1.45e-283) {
		tmp = t_2;
	} else if ((x * y) <= 1.35e-146) {
		tmp = t_1;
	} else if ((x * y) <= 4.2e+23) {
		tmp = t_2;
	} else {
		tmp = t_3;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	t_1 = c + (a * (b * -0.25))
	t_2 = c + (0.0625 * (z * t))
	t_3 = c + (x * y)
	tmp = 0
	if (x * y) <= -7e+100:
		tmp = t_3
	elif (x * y) <= -4.2e-147:
		tmp = t_1
	elif (x * y) <= 1.45e-283:
		tmp = t_2
	elif (x * y) <= 1.35e-146:
		tmp = t_1
	elif (x * y) <= 4.2e+23:
		tmp = t_2
	else:
		tmp = t_3
	return tmp
function code(x, y, z, t, a, b, c)
	t_1 = Float64(c + Float64(a * Float64(b * -0.25)))
	t_2 = Float64(c + Float64(0.0625 * Float64(z * t)))
	t_3 = Float64(c + Float64(x * y))
	tmp = 0.0
	if (Float64(x * y) <= -7e+100)
		tmp = t_3;
	elseif (Float64(x * y) <= -4.2e-147)
		tmp = t_1;
	elseif (Float64(x * y) <= 1.45e-283)
		tmp = t_2;
	elseif (Float64(x * y) <= 1.35e-146)
		tmp = t_1;
	elseif (Float64(x * y) <= 4.2e+23)
		tmp = t_2;
	else
		tmp = t_3;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	t_1 = c + (a * (b * -0.25));
	t_2 = c + (0.0625 * (z * t));
	t_3 = c + (x * y);
	tmp = 0.0;
	if ((x * y) <= -7e+100)
		tmp = t_3;
	elseif ((x * y) <= -4.2e-147)
		tmp = t_1;
	elseif ((x * y) <= 1.45e-283)
		tmp = t_2;
	elseif ((x * y) <= 1.35e-146)
		tmp = t_1;
	elseif ((x * y) <= 4.2e+23)
		tmp = t_2;
	else
		tmp = t_3;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := Block[{t$95$1 = N[(c + N[(a * N[(b * -0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(c + N[(0.0625 * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(c + N[(x * y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(x * y), $MachinePrecision], -7e+100], t$95$3, If[LessEqual[N[(x * y), $MachinePrecision], -4.2e-147], t$95$1, If[LessEqual[N[(x * y), $MachinePrecision], 1.45e-283], t$95$2, If[LessEqual[N[(x * y), $MachinePrecision], 1.35e-146], t$95$1, If[LessEqual[N[(x * y), $MachinePrecision], 4.2e+23], t$95$2, t$95$3]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := c + a \cdot \left(b \cdot -0.25\right)\\
t_2 := c + 0.0625 \cdot \left(z \cdot t\right)\\
t_3 := c + x \cdot y\\
\mathbf{if}\;x \cdot y \leq -7 \cdot 10^{+100}:\\
\;\;\;\;t\_3\\

\mathbf{elif}\;x \cdot y \leq -4.2 \cdot 10^{-147}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \cdot y \leq 1.45 \cdot 10^{-283}:\\
\;\;\;\;t\_2\\

\mathbf{elif}\;x \cdot y \leq 1.35 \cdot 10^{-146}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;x \cdot y \leq 4.2 \cdot 10^{+23}:\\
\;\;\;\;t\_2\\

\mathbf{else}:\\
\;\;\;\;t\_3\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (*.f64 x y) < -6.99999999999999953e100 or 4.2000000000000003e23 < (*.f64 x y)

    1. Initial program 97.1%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 76.7%

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

    if -6.99999999999999953e100 < (*.f64 x y) < -4.2e-147 or 1.44999999999999994e-283 < (*.f64 x y) < 1.34999999999999997e-146

    1. Initial program 98.5%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 79.8%

      \[\leadsto \color{blue}{-0.25 \cdot \left(a \cdot b\right)} + c \]
    4. Step-by-step derivation
      1. *-commutative79.8%

        \[\leadsto \color{blue}{\left(a \cdot b\right) \cdot -0.25} + c \]
      2. associate-*r*79.8%

        \[\leadsto \color{blue}{a \cdot \left(b \cdot -0.25\right)} + c \]
    5. Simplified79.8%

      \[\leadsto \color{blue}{a \cdot \left(b \cdot -0.25\right)} + c \]

    if -4.2e-147 < (*.f64 x y) < 1.44999999999999994e-283 or 1.34999999999999997e-146 < (*.f64 x y) < 4.2000000000000003e23

    1. Initial program 100.0%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 78.2%

      \[\leadsto \color{blue}{0.0625 \cdot \left(t \cdot z\right)} + c \]
  3. Recombined 3 regimes into one program.
  4. Final simplification78.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -7 \cdot 10^{+100}:\\ \;\;\;\;c + x \cdot y\\ \mathbf{elif}\;x \cdot y \leq -4.2 \cdot 10^{-147}:\\ \;\;\;\;c + a \cdot \left(b \cdot -0.25\right)\\ \mathbf{elif}\;x \cdot y \leq 1.45 \cdot 10^{-283}:\\ \;\;\;\;c + 0.0625 \cdot \left(z \cdot t\right)\\ \mathbf{elif}\;x \cdot y \leq 1.35 \cdot 10^{-146}:\\ \;\;\;\;c + a \cdot \left(b \cdot -0.25\right)\\ \mathbf{elif}\;x \cdot y \leq 4.2 \cdot 10^{+23}:\\ \;\;\;\;c + 0.0625 \cdot \left(z \cdot t\right)\\ \mathbf{else}:\\ \;\;\;\;c + x \cdot y\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 89.4% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := 0.0625 \cdot \left(z \cdot t\right)\\ t_2 := \left(b \cdot a\right) \cdot 0.25\\ \mathbf{if}\;x \cdot y \leq -1.05 \cdot 10^{+90}:\\ \;\;\;\;c + \left(x \cdot y + t\_1\right)\\ \mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+23}:\\ \;\;\;\;c + \left(t\_1 - t\_2\right)\\ \mathbf{else}:\\ \;\;\;\;c + \left(x \cdot y - t\_2\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (let* ((t_1 (* 0.0625 (* z t))) (t_2 (* (* b a) 0.25)))
   (if (<= (* x y) -1.05e+90)
     (+ c (+ (* x y) t_1))
     (if (<= (* x y) 5e+23) (+ c (- t_1 t_2)) (+ c (- (* x y) t_2))))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = 0.0625 * (z * t);
	double t_2 = (b * a) * 0.25;
	double tmp;
	if ((x * y) <= -1.05e+90) {
		tmp = c + ((x * y) + t_1);
	} else if ((x * y) <= 5e+23) {
		tmp = c + (t_1 - t_2);
	} else {
		tmp = c + ((x * y) - t_2);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = 0.0625d0 * (z * t)
    t_2 = (b * a) * 0.25d0
    if ((x * y) <= (-1.05d+90)) then
        tmp = c + ((x * y) + t_1)
    else if ((x * y) <= 5d+23) then
        tmp = c + (t_1 - t_2)
    else
        tmp = c + ((x * y) - t_2)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double t_1 = 0.0625 * (z * t);
	double t_2 = (b * a) * 0.25;
	double tmp;
	if ((x * y) <= -1.05e+90) {
		tmp = c + ((x * y) + t_1);
	} else if ((x * y) <= 5e+23) {
		tmp = c + (t_1 - t_2);
	} else {
		tmp = c + ((x * y) - t_2);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	t_1 = 0.0625 * (z * t)
	t_2 = (b * a) * 0.25
	tmp = 0
	if (x * y) <= -1.05e+90:
		tmp = c + ((x * y) + t_1)
	elif (x * y) <= 5e+23:
		tmp = c + (t_1 - t_2)
	else:
		tmp = c + ((x * y) - t_2)
	return tmp
function code(x, y, z, t, a, b, c)
	t_1 = Float64(0.0625 * Float64(z * t))
	t_2 = Float64(Float64(b * a) * 0.25)
	tmp = 0.0
	if (Float64(x * y) <= -1.05e+90)
		tmp = Float64(c + Float64(Float64(x * y) + t_1));
	elseif (Float64(x * y) <= 5e+23)
		tmp = Float64(c + Float64(t_1 - t_2));
	else
		tmp = Float64(c + Float64(Float64(x * y) - t_2));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	t_1 = 0.0625 * (z * t);
	t_2 = (b * a) * 0.25;
	tmp = 0.0;
	if ((x * y) <= -1.05e+90)
		tmp = c + ((x * y) + t_1);
	elseif ((x * y) <= 5e+23)
		tmp = c + (t_1 - t_2);
	else
		tmp = c + ((x * y) - t_2);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := Block[{t$95$1 = N[(0.0625 * N[(z * t), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(b * a), $MachinePrecision] * 0.25), $MachinePrecision]}, If[LessEqual[N[(x * y), $MachinePrecision], -1.05e+90], N[(c + N[(N[(x * y), $MachinePrecision] + t$95$1), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(x * y), $MachinePrecision], 5e+23], N[(c + N[(t$95$1 - t$95$2), $MachinePrecision]), $MachinePrecision], N[(c + N[(N[(x * y), $MachinePrecision] - t$95$2), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := 0.0625 \cdot \left(z \cdot t\right)\\
t_2 := \left(b \cdot a\right) \cdot 0.25\\
\mathbf{if}\;x \cdot y \leq -1.05 \cdot 10^{+90}:\\
\;\;\;\;c + \left(x \cdot y + t\_1\right)\\

\mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+23}:\\
\;\;\;\;c + \left(t\_1 - t\_2\right)\\

\mathbf{else}:\\
\;\;\;\;c + \left(x \cdot y - t\_2\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (*.f64 x y) < -1.0499999999999999e90

    1. Initial program 98.1%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 98.0%

      \[\leadsto \color{blue}{\left(0.0625 \cdot \left(t \cdot z\right) + x \cdot y\right)} + c \]

    if -1.0499999999999999e90 < (*.f64 x y) < 4.9999999999999999e23

    1. Initial program 99.3%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 98.0%

      \[\leadsto \color{blue}{\left(0.0625 \cdot \left(t \cdot z\right) - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]

    if 4.9999999999999999e23 < (*.f64 x y)

    1. Initial program 96.3%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 84.0%

      \[\leadsto \color{blue}{\left(x \cdot y - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]
  3. Recombined 3 regimes into one program.
  4. Final simplification95.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -1.05 \cdot 10^{+90}:\\ \;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\ \mathbf{elif}\;x \cdot y \leq 5 \cdot 10^{+23}:\\ \;\;\;\;c + \left(0.0625 \cdot \left(z \cdot t\right) - \left(b \cdot a\right) \cdot 0.25\right)\\ \mathbf{else}:\\ \;\;\;\;c + \left(x \cdot y - \left(b \cdot a\right) \cdot 0.25\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 89.7% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \cdot a \leq -5 \cdot 10^{+60}:\\ \;\;\;\;c + \left(x \cdot y - \left(b \cdot a\right) \cdot 0.25\right)\\ \mathbf{elif}\;b \cdot a \leq 2 \cdot 10^{+98}:\\ \;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;c + b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (if (<= (* b a) -5e+60)
   (+ c (- (* x y) (* (* b a) 0.25)))
   (if (<= (* b a) 2e+98)
     (+ c (+ (* x y) (* 0.0625 (* z t))))
     (+ c (* b (- (/ (* x y) b) (* a 0.25)))))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((b * a) <= -5e+60) {
		tmp = c + ((x * y) - ((b * a) * 0.25));
	} else if ((b * a) <= 2e+98) {
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	} else {
		tmp = c + (b * (((x * y) / b) - (a * 0.25)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: tmp
    if ((b * a) <= (-5d+60)) then
        tmp = c + ((x * y) - ((b * a) * 0.25d0))
    else if ((b * a) <= 2d+98) then
        tmp = c + ((x * y) + (0.0625d0 * (z * t)))
    else
        tmp = c + (b * (((x * y) / b) - (a * 0.25d0)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((b * a) <= -5e+60) {
		tmp = c + ((x * y) - ((b * a) * 0.25));
	} else if ((b * a) <= 2e+98) {
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	} else {
		tmp = c + (b * (((x * y) / b) - (a * 0.25)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	tmp = 0
	if (b * a) <= -5e+60:
		tmp = c + ((x * y) - ((b * a) * 0.25))
	elif (b * a) <= 2e+98:
		tmp = c + ((x * y) + (0.0625 * (z * t)))
	else:
		tmp = c + (b * (((x * y) / b) - (a * 0.25)))
	return tmp
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if (Float64(b * a) <= -5e+60)
		tmp = Float64(c + Float64(Float64(x * y) - Float64(Float64(b * a) * 0.25)));
	elseif (Float64(b * a) <= 2e+98)
		tmp = Float64(c + Float64(Float64(x * y) + Float64(0.0625 * Float64(z * t))));
	else
		tmp = Float64(c + Float64(b * Float64(Float64(Float64(x * y) / b) - Float64(a * 0.25))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if ((b * a) <= -5e+60)
		tmp = c + ((x * y) - ((b * a) * 0.25));
	elseif ((b * a) <= 2e+98)
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	else
		tmp = c + (b * (((x * y) / b) - (a * 0.25)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := If[LessEqual[N[(b * a), $MachinePrecision], -5e+60], N[(c + N[(N[(x * y), $MachinePrecision] - N[(N[(b * a), $MachinePrecision] * 0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(b * a), $MachinePrecision], 2e+98], N[(c + N[(N[(x * y), $MachinePrecision] + N[(0.0625 * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(c + N[(b * N[(N[(N[(x * y), $MachinePrecision] / b), $MachinePrecision] - N[(a * 0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \cdot a \leq -5 \cdot 10^{+60}:\\
\;\;\;\;c + \left(x \cdot y - \left(b \cdot a\right) \cdot 0.25\right)\\

\mathbf{elif}\;b \cdot a \leq 2 \cdot 10^{+98}:\\
\;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\

\mathbf{else}:\\
\;\;\;\;c + b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (*.f64 a b) < -4.99999999999999975e60

    1. Initial program 98.1%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 89.3%

      \[\leadsto \color{blue}{\left(x \cdot y - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]

    if -4.99999999999999975e60 < (*.f64 a b) < 2e98

    1. Initial program 99.4%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 95.7%

      \[\leadsto \color{blue}{\left(0.0625 \cdot \left(t \cdot z\right) + x \cdot y\right)} + c \]

    if 2e98 < (*.f64 a b)

    1. Initial program 93.3%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 87.1%

      \[\leadsto \color{blue}{\left(x \cdot y - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]
    4. Taylor expanded in b around inf 87.1%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} + c \]
  3. Recombined 3 regimes into one program.
  4. Final simplification93.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \cdot a \leq -5 \cdot 10^{+60}:\\ \;\;\;\;c + \left(x \cdot y - \left(b \cdot a\right) \cdot 0.25\right)\\ \mathbf{elif}\;b \cdot a \leq 2 \cdot 10^{+98}:\\ \;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;c + b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 89.6% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \cdot a \leq -5 \cdot 10^{+60} \lor \neg \left(b \cdot a \leq 2 \cdot 10^{+98}\right):\\ \;\;\;\;c + \left(x \cdot y - \left(b \cdot a\right) \cdot 0.25\right)\\ \mathbf{else}:\\ \;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (if (or (<= (* b a) -5e+60) (not (<= (* b a) 2e+98)))
   (+ c (- (* x y) (* (* b a) 0.25)))
   (+ c (+ (* x y) (* 0.0625 (* z t))))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (((b * a) <= -5e+60) || !((b * a) <= 2e+98)) {
		tmp = c + ((x * y) - ((b * a) * 0.25));
	} else {
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: tmp
    if (((b * a) <= (-5d+60)) .or. (.not. ((b * a) <= 2d+98))) then
        tmp = c + ((x * y) - ((b * a) * 0.25d0))
    else
        tmp = c + ((x * y) + (0.0625d0 * (z * t)))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (((b * a) <= -5e+60) || !((b * a) <= 2e+98)) {
		tmp = c + ((x * y) - ((b * a) * 0.25));
	} else {
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	tmp = 0
	if ((b * a) <= -5e+60) or not ((b * a) <= 2e+98):
		tmp = c + ((x * y) - ((b * a) * 0.25))
	else:
		tmp = c + ((x * y) + (0.0625 * (z * t)))
	return tmp
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if ((Float64(b * a) <= -5e+60) || !(Float64(b * a) <= 2e+98))
		tmp = Float64(c + Float64(Float64(x * y) - Float64(Float64(b * a) * 0.25)));
	else
		tmp = Float64(c + Float64(Float64(x * y) + Float64(0.0625 * Float64(z * t))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (((b * a) <= -5e+60) || ~(((b * a) <= 2e+98)))
		tmp = c + ((x * y) - ((b * a) * 0.25));
	else
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := If[Or[LessEqual[N[(b * a), $MachinePrecision], -5e+60], N[Not[LessEqual[N[(b * a), $MachinePrecision], 2e+98]], $MachinePrecision]], N[(c + N[(N[(x * y), $MachinePrecision] - N[(N[(b * a), $MachinePrecision] * 0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(c + N[(N[(x * y), $MachinePrecision] + N[(0.0625 * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \cdot a \leq -5 \cdot 10^{+60} \lor \neg \left(b \cdot a \leq 2 \cdot 10^{+98}\right):\\
\;\;\;\;c + \left(x \cdot y - \left(b \cdot a\right) \cdot 0.25\right)\\

\mathbf{else}:\\
\;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 a b) < -4.99999999999999975e60 or 2e98 < (*.f64 a b)

    1. Initial program 96.4%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 88.5%

      \[\leadsto \color{blue}{\left(x \cdot y - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]

    if -4.99999999999999975e60 < (*.f64 a b) < 2e98

    1. Initial program 99.4%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 95.7%

      \[\leadsto \color{blue}{\left(0.0625 \cdot \left(t \cdot z\right) + x \cdot y\right)} + c \]
  3. Recombined 2 regimes into one program.
  4. Final simplification93.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \cdot a \leq -5 \cdot 10^{+60} \lor \neg \left(b \cdot a \leq 2 \cdot 10^{+98}\right):\\ \;\;\;\;c + \left(x \cdot y - \left(b \cdot a\right) \cdot 0.25\right)\\ \mathbf{else}:\\ \;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 64.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \cdot y \leq -6 \cdot 10^{+103} \lor \neg \left(x \cdot y \leq 4.8 \cdot 10^{+23}\right):\\ \;\;\;\;c + x \cdot y\\ \mathbf{else}:\\ \;\;\;\;c + 0.0625 \cdot \left(z \cdot t\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (if (or (<= (* x y) -6e+103) (not (<= (* x y) 4.8e+23)))
   (+ c (* x y))
   (+ c (* 0.0625 (* z t)))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (((x * y) <= -6e+103) || !((x * y) <= 4.8e+23)) {
		tmp = c + (x * y);
	} else {
		tmp = c + (0.0625 * (z * t));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: tmp
    if (((x * y) <= (-6d+103)) .or. (.not. ((x * y) <= 4.8d+23))) then
        tmp = c + (x * y)
    else
        tmp = c + (0.0625d0 * (z * t))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (((x * y) <= -6e+103) || !((x * y) <= 4.8e+23)) {
		tmp = c + (x * y);
	} else {
		tmp = c + (0.0625 * (z * t));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	tmp = 0
	if ((x * y) <= -6e+103) or not ((x * y) <= 4.8e+23):
		tmp = c + (x * y)
	else:
		tmp = c + (0.0625 * (z * t))
	return tmp
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if ((Float64(x * y) <= -6e+103) || !(Float64(x * y) <= 4.8e+23))
		tmp = Float64(c + Float64(x * y));
	else
		tmp = Float64(c + Float64(0.0625 * Float64(z * t)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (((x * y) <= -6e+103) || ~(((x * y) <= 4.8e+23)))
		tmp = c + (x * y);
	else
		tmp = c + (0.0625 * (z * t));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := If[Or[LessEqual[N[(x * y), $MachinePrecision], -6e+103], N[Not[LessEqual[N[(x * y), $MachinePrecision], 4.8e+23]], $MachinePrecision]], N[(c + N[(x * y), $MachinePrecision]), $MachinePrecision], N[(c + N[(0.0625 * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \cdot y \leq -6 \cdot 10^{+103} \lor \neg \left(x \cdot y \leq 4.8 \cdot 10^{+23}\right):\\
\;\;\;\;c + x \cdot y\\

\mathbf{else}:\\
\;\;\;\;c + 0.0625 \cdot \left(z \cdot t\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 x y) < -6e103 or 4.8e23 < (*.f64 x y)

    1. Initial program 97.1%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 76.7%

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

    if -6e103 < (*.f64 x y) < 4.8e23

    1. Initial program 99.3%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf 69.0%

      \[\leadsto \color{blue}{0.0625 \cdot \left(t \cdot z\right)} + c \]
  3. Recombined 2 regimes into one program.
  4. Final simplification72.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \cdot y \leq -6 \cdot 10^{+103} \lor \neg \left(x \cdot y \leq 4.8 \cdot 10^{+23}\right):\\ \;\;\;\;c + x \cdot y\\ \mathbf{else}:\\ \;\;\;\;c + 0.0625 \cdot \left(z \cdot t\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 75.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{-50}:\\ \;\;\;\;c + a \cdot \left(b \cdot -0.25\right)\\ \mathbf{elif}\;b \leq 1.85 \cdot 10^{+205}:\\ \;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (if (<= b -1.95e-50)
   (+ c (* a (* b -0.25)))
   (if (<= b 1.85e+205)
     (+ c (+ (* x y) (* 0.0625 (* z t))))
     (* b (- (/ (* x y) b) (* a 0.25))))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (b <= -1.95e-50) {
		tmp = c + (a * (b * -0.25));
	} else if (b <= 1.85e+205) {
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	} else {
		tmp = b * (((x * y) / b) - (a * 0.25));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: tmp
    if (b <= (-1.95d-50)) then
        tmp = c + (a * (b * (-0.25d0)))
    else if (b <= 1.85d+205) then
        tmp = c + ((x * y) + (0.0625d0 * (z * t)))
    else
        tmp = b * (((x * y) / b) - (a * 0.25d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if (b <= -1.95e-50) {
		tmp = c + (a * (b * -0.25));
	} else if (b <= 1.85e+205) {
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	} else {
		tmp = b * (((x * y) / b) - (a * 0.25));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	tmp = 0
	if b <= -1.95e-50:
		tmp = c + (a * (b * -0.25))
	elif b <= 1.85e+205:
		tmp = c + ((x * y) + (0.0625 * (z * t)))
	else:
		tmp = b * (((x * y) / b) - (a * 0.25))
	return tmp
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if (b <= -1.95e-50)
		tmp = Float64(c + Float64(a * Float64(b * -0.25)));
	elseif (b <= 1.85e+205)
		tmp = Float64(c + Float64(Float64(x * y) + Float64(0.0625 * Float64(z * t))));
	else
		tmp = Float64(b * Float64(Float64(Float64(x * y) / b) - Float64(a * 0.25)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if (b <= -1.95e-50)
		tmp = c + (a * (b * -0.25));
	elseif (b <= 1.85e+205)
		tmp = c + ((x * y) + (0.0625 * (z * t)));
	else
		tmp = b * (((x * y) / b) - (a * 0.25));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := If[LessEqual[b, -1.95e-50], N[(c + N[(a * N[(b * -0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[b, 1.85e+205], N[(c + N[(N[(x * y), $MachinePrecision] + N[(0.0625 * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(b * N[(N[(N[(x * y), $MachinePrecision] / b), $MachinePrecision] - N[(a * 0.25), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.95 \cdot 10^{-50}:\\
\;\;\;\;c + a \cdot \left(b \cdot -0.25\right)\\

\mathbf{elif}\;b \leq 1.85 \cdot 10^{+205}:\\
\;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\

\mathbf{else}:\\
\;\;\;\;b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if b < -1.9500000000000001e-50

    1. Initial program 97.7%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in a around inf 51.4%

      \[\leadsto \color{blue}{-0.25 \cdot \left(a \cdot b\right)} + c \]
    4. Step-by-step derivation
      1. *-commutative51.4%

        \[\leadsto \color{blue}{\left(a \cdot b\right) \cdot -0.25} + c \]
      2. associate-*r*51.4%

        \[\leadsto \color{blue}{a \cdot \left(b \cdot -0.25\right)} + c \]
    5. Simplified51.4%

      \[\leadsto \color{blue}{a \cdot \left(b \cdot -0.25\right)} + c \]

    if -1.9500000000000001e-50 < b < 1.8499999999999999e205

    1. Initial program 99.3%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in a around 0 89.7%

      \[\leadsto \color{blue}{\left(0.0625 \cdot \left(t \cdot z\right) + x \cdot y\right)} + c \]

    if 1.8499999999999999e205 < b

    1. Initial program 95.0%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 85.8%

      \[\leadsto \color{blue}{\left(x \cdot y - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]
    4. Taylor expanded in b around inf 85.8%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} + c \]
    5. Taylor expanded in c around 0 81.2%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification76.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{-50}:\\ \;\;\;\;c + a \cdot \left(b \cdot -0.25\right)\\ \mathbf{elif}\;b \leq 1.85 \cdot 10^{+205}:\\ \;\;\;\;c + \left(x \cdot y + 0.0625 \cdot \left(z \cdot t\right)\right)\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(\frac{x \cdot y}{b} - a \cdot 0.25\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 97.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ c + \left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{b \cdot a}{4}\right) \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (+ c (- (+ (* x y) (/ (* z t) 16.0)) (/ (* b a) 4.0))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	return c + (((x * y) + ((z * t) / 16.0)) - ((b * a) / 4.0));
}
real(8) function code(x, y, z, t, a, b, c)
    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
    code = c + (((x * y) + ((z * t) / 16.0d0)) - ((b * a) / 4.0d0))
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	return c + (((x * y) + ((z * t) / 16.0)) - ((b * a) / 4.0));
}
def code(x, y, z, t, a, b, c):
	return c + (((x * y) + ((z * t) / 16.0)) - ((b * a) / 4.0))
function code(x, y, z, t, a, b, c)
	return Float64(c + Float64(Float64(Float64(x * y) + Float64(Float64(z * t) / 16.0)) - Float64(Float64(b * a) / 4.0)))
end
function tmp = code(x, y, z, t, a, b, c)
	tmp = c + (((x * y) + ((z * t) / 16.0)) - ((b * a) / 4.0));
end
code[x_, y_, z_, t_, a_, b_, c_] := N[(c + N[(N[(N[(x * y), $MachinePrecision] + N[(N[(z * t), $MachinePrecision] / 16.0), $MachinePrecision]), $MachinePrecision] - N[(N[(b * a), $MachinePrecision] / 4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
c + \left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{b \cdot a}{4}\right)
\end{array}
Derivation
  1. Initial program 98.4%

    \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
  2. Add Preprocessing
  3. Final simplification98.4%

    \[\leadsto c + \left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{b \cdot a}{4}\right) \]
  4. Add Preprocessing

Alternative 10: 53.1% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{-50} \lor \neg \left(b \leq 2.4 \cdot 10^{+189}\right):\\ \;\;\;\;b \cdot \left(a \cdot -0.25\right)\\ \mathbf{else}:\\ \;\;\;\;c + x \cdot y\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (if (or (<= b -1.95e-50) (not (<= b 2.4e+189)))
   (* b (* a -0.25))
   (+ c (* x y))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((b <= -1.95e-50) || !(b <= 2.4e+189)) {
		tmp = b * (a * -0.25);
	} else {
		tmp = c + (x * y);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: tmp
    if ((b <= (-1.95d-50)) .or. (.not. (b <= 2.4d+189))) then
        tmp = b * (a * (-0.25d0))
    else
        tmp = c + (x * y)
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((b <= -1.95e-50) || !(b <= 2.4e+189)) {
		tmp = b * (a * -0.25);
	} else {
		tmp = c + (x * y);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	tmp = 0
	if (b <= -1.95e-50) or not (b <= 2.4e+189):
		tmp = b * (a * -0.25)
	else:
		tmp = c + (x * y)
	return tmp
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if ((b <= -1.95e-50) || !(b <= 2.4e+189))
		tmp = Float64(b * Float64(a * -0.25));
	else
		tmp = Float64(c + Float64(x * y));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if ((b <= -1.95e-50) || ~((b <= 2.4e+189)))
		tmp = b * (a * -0.25);
	else
		tmp = c + (x * y);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := If[Or[LessEqual[b, -1.95e-50], N[Not[LessEqual[b, 2.4e+189]], $MachinePrecision]], N[(b * N[(a * -0.25), $MachinePrecision]), $MachinePrecision], N[(c + N[(x * y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.95 \cdot 10^{-50} \lor \neg \left(b \leq 2.4 \cdot 10^{+189}\right):\\
\;\;\;\;b \cdot \left(a \cdot -0.25\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if b < -1.9500000000000001e-50 or 2.4000000000000001e189 < b

    1. Initial program 97.3%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 76.9%

      \[\leadsto \color{blue}{\left(x \cdot y - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]
    4. Taylor expanded in b around inf 76.9%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} + c \]
    5. Taylor expanded in c around 0 63.8%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} \]
    6. Taylor expanded in x around 0 41.7%

      \[\leadsto b \cdot \color{blue}{\left(-0.25 \cdot a\right)} \]

    if -1.9500000000000001e-50 < b < 2.4000000000000001e189

    1. Initial program 99.3%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 63.9%

      \[\leadsto \color{blue}{x \cdot y} + c \]
  3. Recombined 2 regimes into one program.
  4. Final simplification54.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;b \leq -1.95 \cdot 10^{-50} \lor \neg \left(b \leq 2.4 \cdot 10^{+189}\right):\\ \;\;\;\;b \cdot \left(a \cdot -0.25\right)\\ \mathbf{else}:\\ \;\;\;\;c + x \cdot y\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 38.6% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;c \leq -1.06 \cdot 10^{+73} \lor \neg \left(c \leq 7 \cdot 10^{+83}\right):\\ \;\;\;\;c\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(a \cdot -0.25\right)\\ \end{array} \end{array} \]
(FPCore (x y z t a b c)
 :precision binary64
 (if (or (<= c -1.06e+73) (not (<= c 7e+83))) c (* b (* a -0.25))))
double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((c <= -1.06e+73) || !(c <= 7e+83)) {
		tmp = c;
	} else {
		tmp = b * (a * -0.25);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c)
    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) :: tmp
    if ((c <= (-1.06d+73)) .or. (.not. (c <= 7d+83))) then
        tmp = c
    else
        tmp = b * (a * (-0.25d0))
    end if
    code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c) {
	double tmp;
	if ((c <= -1.06e+73) || !(c <= 7e+83)) {
		tmp = c;
	} else {
		tmp = b * (a * -0.25);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c):
	tmp = 0
	if (c <= -1.06e+73) or not (c <= 7e+83):
		tmp = c
	else:
		tmp = b * (a * -0.25)
	return tmp
function code(x, y, z, t, a, b, c)
	tmp = 0.0
	if ((c <= -1.06e+73) || !(c <= 7e+83))
		tmp = c;
	else
		tmp = Float64(b * Float64(a * -0.25));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c)
	tmp = 0.0;
	if ((c <= -1.06e+73) || ~((c <= 7e+83)))
		tmp = c;
	else
		tmp = b * (a * -0.25);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_] := If[Or[LessEqual[c, -1.06e+73], N[Not[LessEqual[c, 7e+83]], $MachinePrecision]], c, N[(b * N[(a * -0.25), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;c \leq -1.06 \cdot 10^{+73} \lor \neg \left(c \leq 7 \cdot 10^{+83}\right):\\
\;\;\;\;c\\

\mathbf{else}:\\
\;\;\;\;b \cdot \left(a \cdot -0.25\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if c < -1.0600000000000001e73 or 6.99999999999999954e83 < c

    1. Initial program 100.0%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 76.9%

      \[\leadsto \color{blue}{x \cdot y} + c \]
    4. Taylor expanded in x around 0 52.5%

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

    if -1.0600000000000001e73 < c < 6.99999999999999954e83

    1. Initial program 97.4%

      \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
    2. Add Preprocessing
    3. Taylor expanded in z around 0 65.3%

      \[\leadsto \color{blue}{\left(x \cdot y - 0.25 \cdot \left(a \cdot b\right)\right)} + c \]
    4. Taylor expanded in b around inf 59.8%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} + c \]
    5. Taylor expanded in c around 0 54.1%

      \[\leadsto \color{blue}{b \cdot \left(\frac{x \cdot y}{b} - 0.25 \cdot a\right)} \]
    6. Taylor expanded in x around 0 31.7%

      \[\leadsto b \cdot \color{blue}{\left(-0.25 \cdot a\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification40.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;c \leq -1.06 \cdot 10^{+73} \lor \neg \left(c \leq 7 \cdot 10^{+83}\right):\\ \;\;\;\;c\\ \mathbf{else}:\\ \;\;\;\;b \cdot \left(a \cdot -0.25\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 22.0% accurate, 17.0× speedup?

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

\\
c
\end{array}
Derivation
  1. Initial program 98.4%

    \[\left(\left(x \cdot y + \frac{z \cdot t}{16}\right) - \frac{a \cdot b}{4}\right) + c \]
  2. Add Preprocessing
  3. Taylor expanded in x around inf 53.2%

    \[\leadsto \color{blue}{x \cdot y} + c \]
  4. Taylor expanded in x around 0 25.6%

    \[\leadsto \color{blue}{c} \]
  5. Add Preprocessing

Reproduce

?
herbie shell --seed 2024096 
(FPCore (x y z t a b c)
  :name "Diagrams.Solve.Polynomial:quartForm  from diagrams-solve-0.1, C"
  :precision binary64
  (+ (- (+ (* x y) (/ (* z t) 16.0)) (/ (* a b) 4.0)) c))