Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2

Percentage Accurate: 55.6% → 85.9%
Time: 31.4s
Alternatives: 17
Speedup: 1.6×

Specification

?
\[\begin{array}{l} \\ \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (/
  (+ (* (+ (* (+ (* (+ (* x y) z) y) 27464.7644705) y) 230661.510616) y) t)
  (+ (* (+ (* (+ (* (+ y a) y) b) y) c) y) i)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
}
real(8) function code(x, y, z, t, a, b, c, i)
    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
    code = ((((((((x * y) + z) * y) + 27464.7644705d0) * y) + 230661.510616d0) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
}
def code(x, y, z, t, a, b, c, i):
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i)
function code(x, y, z, t, a, b, c, i)
	return Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / Float64(Float64(Float64(Float64(Float64(Float64(Float64(y + a) * y) + b) * y) + c) * y) + i))
end
function tmp = code(x, y, z, t, a, b, c, i)
	tmp = ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := N[(N[(N[(N[(N[(N[(N[(N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision] * y), $MachinePrecision] + 27464.7644705), $MachinePrecision] * y), $MachinePrecision] + 230661.510616), $MachinePrecision] * y), $MachinePrecision] + t), $MachinePrecision] / N[(N[(N[(N[(N[(N[(N[(y + a), $MachinePrecision] * y), $MachinePrecision] + b), $MachinePrecision] * y), $MachinePrecision] + c), $MachinePrecision] * y), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}
\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 17 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: 55.6% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (/
  (+ (* (+ (* (+ (* (+ (* x y) z) y) 27464.7644705) y) 230661.510616) y) t)
  (+ (* (+ (* (+ (* (+ y a) y) b) y) c) y) i)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
}
real(8) function code(x, y, z, t, a, b, c, i)
    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
    code = ((((((((x * y) + z) * y) + 27464.7644705d0) * y) + 230661.510616d0) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
}
def code(x, y, z, t, a, b, c, i):
	return ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i)
function code(x, y, z, t, a, b, c, i)
	return Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / Float64(Float64(Float64(Float64(Float64(Float64(Float64(y + a) * y) + b) * y) + c) * y) + i))
end
function tmp = code(x, y, z, t, a, b, c, i)
	tmp = ((((((((x * y) + z) * y) + 27464.7644705) * y) + 230661.510616) * y) + t) / (((((((y + a) * y) + b) * y) + c) * y) + i);
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := N[(N[(N[(N[(N[(N[(N[(N[(N[(x * y), $MachinePrecision] + z), $MachinePrecision] * y), $MachinePrecision] + 27464.7644705), $MachinePrecision] * y), $MachinePrecision] + 230661.510616), $MachinePrecision] * y), $MachinePrecision] + t), $MachinePrecision] / N[(N[(N[(N[(N[(N[(N[(y + a), $MachinePrecision] * y), $MachinePrecision] + b), $MachinePrecision] * y), $MachinePrecision] + c), $MachinePrecision] * y), $MachinePrecision] + i), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}
\end{array}

Alternative 1: 85.9% accurate, 0.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\\ t_2 := b + y \cdot \left(y + a\right)\\ t_3 := {t\_2}^{2}\\ t_4 := y \cdot t\_2\\ t_5 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ t_6 := c + t\_4\\ t_7 := {t\_6}^{2}\\ t_8 := y \cdot t\_6\\ t_9 := i + t\_8\\ t_10 := y \cdot \left(z + y \cdot x\right)\\ t_11 := 27464.7644705 + t\_10\\ t_12 := {t\_1}^{2}\\ \mathbf{if}\;y \leq -1.18 \cdot 10^{+110}:\\ \;\;\;\;t\_5\\ \mathbf{elif}\;y \leq -5.6 \cdot 10^{+43}:\\ \;\;\;\;\left(\frac{t}{t\_8} + \left(\left(230661.510616 \cdot \frac{1}{t\_4} + \frac{t\_11}{t\_2}\right) - c \cdot \left(230661.510616 \cdot \frac{1}{{y}^{2} \cdot t\_3} + \left(27464.7644705 \cdot \frac{1}{y \cdot t\_3} + \left(\frac{z}{t\_3} + \frac{y \cdot x}{t\_3}\right)\right)\right)\right)\right) - i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot t\_7} + \left(27464.7644705 \cdot \frac{1}{t\_7} + \left(\frac{t}{t\_7 \cdot {y}^{2}} + \frac{t\_10}{t\_7}\right)\right)\right)\\ \mathbf{elif}\;y \leq 160:\\ \;\;\;\;\frac{t}{t\_9} + \frac{y \cdot \left(230661.510616 + y \cdot t\_11\right)}{t\_9}\\ \mathbf{elif}\;y \leq 4.8 \cdot 10^{+82}:\\ \;\;\;\;\left(\frac{\frac{t}{y}}{t\_1} + \left(\frac{x}{\frac{t\_1}{{y}^{3}}} + \frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, z, 27464.7644705\right), 230661.510616\right)}{t\_1}\right)\right) - i \cdot \left(\left(\frac{230661.510616}{y \cdot t\_12} + \frac{27464.7644705}{t\_12}\right) + \left(\frac{\frac{t}{{y}^{2}}}{t\_12} + \left(\frac{x}{\frac{t\_12}{{y}^{2}}} + \frac{y}{\frac{t\_12}{z}}\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t\_5\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (fma y (fma y (+ y a) b) c))
        (t_2 (+ b (* y (+ y a))))
        (t_3 (pow t_2 2.0))
        (t_4 (* y t_2))
        (t_5 (+ x (- (/ z y) (/ x (/ y a)))))
        (t_6 (+ c t_4))
        (t_7 (pow t_6 2.0))
        (t_8 (* y t_6))
        (t_9 (+ i t_8))
        (t_10 (* y (+ z (* y x))))
        (t_11 (+ 27464.7644705 t_10))
        (t_12 (pow t_1 2.0)))
   (if (<= y -1.18e+110)
     t_5
     (if (<= y -5.6e+43)
       (-
        (+
         (/ t t_8)
         (-
          (+ (* 230661.510616 (/ 1.0 t_4)) (/ t_11 t_2))
          (*
           c
           (+
            (* 230661.510616 (/ 1.0 (* (pow y 2.0) t_3)))
            (+
             (* 27464.7644705 (/ 1.0 (* y t_3)))
             (+ (/ z t_3) (/ (* y x) t_3)))))))
        (*
         i
         (+
          (* 230661.510616 (/ 1.0 (* y t_7)))
          (+
           (* 27464.7644705 (/ 1.0 t_7))
           (+ (/ t (* t_7 (pow y 2.0))) (/ t_10 t_7))))))
       (if (<= y 160.0)
         (+ (/ t t_9) (/ (* y (+ 230661.510616 (* y t_11))) t_9))
         (if (<= y 4.8e+82)
           (-
            (+
             (/ (/ t y) t_1)
             (+
              (/ x (/ t_1 (pow y 3.0)))
              (/ (fma y (fma y z 27464.7644705) 230661.510616) t_1)))
            (*
             i
             (+
              (+ (/ 230661.510616 (* y t_12)) (/ 27464.7644705 t_12))
              (+
               (/ (/ t (pow y 2.0)) t_12)
               (+ (/ x (/ t_12 (pow y 2.0))) (/ y (/ t_12 z)))))))
           t_5))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = fma(y, fma(y, (y + a), b), c);
	double t_2 = b + (y * (y + a));
	double t_3 = pow(t_2, 2.0);
	double t_4 = y * t_2;
	double t_5 = x + ((z / y) - (x / (y / a)));
	double t_6 = c + t_4;
	double t_7 = pow(t_6, 2.0);
	double t_8 = y * t_6;
	double t_9 = i + t_8;
	double t_10 = y * (z + (y * x));
	double t_11 = 27464.7644705 + t_10;
	double t_12 = pow(t_1, 2.0);
	double tmp;
	if (y <= -1.18e+110) {
		tmp = t_5;
	} else if (y <= -5.6e+43) {
		tmp = ((t / t_8) + (((230661.510616 * (1.0 / t_4)) + (t_11 / t_2)) - (c * ((230661.510616 * (1.0 / (pow(y, 2.0) * t_3))) + ((27464.7644705 * (1.0 / (y * t_3))) + ((z / t_3) + ((y * x) / t_3))))))) - (i * ((230661.510616 * (1.0 / (y * t_7))) + ((27464.7644705 * (1.0 / t_7)) + ((t / (t_7 * pow(y, 2.0))) + (t_10 / t_7)))));
	} else if (y <= 160.0) {
		tmp = (t / t_9) + ((y * (230661.510616 + (y * t_11))) / t_9);
	} else if (y <= 4.8e+82) {
		tmp = (((t / y) / t_1) + ((x / (t_1 / pow(y, 3.0))) + (fma(y, fma(y, z, 27464.7644705), 230661.510616) / t_1))) - (i * (((230661.510616 / (y * t_12)) + (27464.7644705 / t_12)) + (((t / pow(y, 2.0)) / t_12) + ((x / (t_12 / pow(y, 2.0))) + (y / (t_12 / z))))));
	} else {
		tmp = t_5;
	}
	return tmp;
}
function code(x, y, z, t, a, b, c, i)
	t_1 = fma(y, fma(y, Float64(y + a), b), c)
	t_2 = Float64(b + Float64(y * Float64(y + a)))
	t_3 = t_2 ^ 2.0
	t_4 = Float64(y * t_2)
	t_5 = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))))
	t_6 = Float64(c + t_4)
	t_7 = t_6 ^ 2.0
	t_8 = Float64(y * t_6)
	t_9 = Float64(i + t_8)
	t_10 = Float64(y * Float64(z + Float64(y * x)))
	t_11 = Float64(27464.7644705 + t_10)
	t_12 = t_1 ^ 2.0
	tmp = 0.0
	if (y <= -1.18e+110)
		tmp = t_5;
	elseif (y <= -5.6e+43)
		tmp = Float64(Float64(Float64(t / t_8) + Float64(Float64(Float64(230661.510616 * Float64(1.0 / t_4)) + Float64(t_11 / t_2)) - Float64(c * Float64(Float64(230661.510616 * Float64(1.0 / Float64((y ^ 2.0) * t_3))) + Float64(Float64(27464.7644705 * Float64(1.0 / Float64(y * t_3))) + Float64(Float64(z / t_3) + Float64(Float64(y * x) / t_3))))))) - Float64(i * Float64(Float64(230661.510616 * Float64(1.0 / Float64(y * t_7))) + Float64(Float64(27464.7644705 * Float64(1.0 / t_7)) + Float64(Float64(t / Float64(t_7 * (y ^ 2.0))) + Float64(t_10 / t_7))))));
	elseif (y <= 160.0)
		tmp = Float64(Float64(t / t_9) + Float64(Float64(y * Float64(230661.510616 + Float64(y * t_11))) / t_9));
	elseif (y <= 4.8e+82)
		tmp = Float64(Float64(Float64(Float64(t / y) / t_1) + Float64(Float64(x / Float64(t_1 / (y ^ 3.0))) + Float64(fma(y, fma(y, z, 27464.7644705), 230661.510616) / t_1))) - Float64(i * Float64(Float64(Float64(230661.510616 / Float64(y * t_12)) + Float64(27464.7644705 / t_12)) + Float64(Float64(Float64(t / (y ^ 2.0)) / t_12) + Float64(Float64(x / Float64(t_12 / (y ^ 2.0))) + Float64(y / Float64(t_12 / z)))))));
	else
		tmp = t_5;
	end
	return tmp
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(y * N[(y * N[(y + a), $MachinePrecision] + b), $MachinePrecision] + c), $MachinePrecision]}, Block[{t$95$2 = N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[Power[t$95$2, 2.0], $MachinePrecision]}, Block[{t$95$4 = N[(y * t$95$2), $MachinePrecision]}, Block[{t$95$5 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$6 = N[(c + t$95$4), $MachinePrecision]}, Block[{t$95$7 = N[Power[t$95$6, 2.0], $MachinePrecision]}, Block[{t$95$8 = N[(y * t$95$6), $MachinePrecision]}, Block[{t$95$9 = N[(i + t$95$8), $MachinePrecision]}, Block[{t$95$10 = N[(y * N[(z + N[(y * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$11 = N[(27464.7644705 + t$95$10), $MachinePrecision]}, Block[{t$95$12 = N[Power[t$95$1, 2.0], $MachinePrecision]}, If[LessEqual[y, -1.18e+110], t$95$5, If[LessEqual[y, -5.6e+43], N[(N[(N[(t / t$95$8), $MachinePrecision] + N[(N[(N[(230661.510616 * N[(1.0 / t$95$4), $MachinePrecision]), $MachinePrecision] + N[(t$95$11 / t$95$2), $MachinePrecision]), $MachinePrecision] - N[(c * N[(N[(230661.510616 * N[(1.0 / N[(N[Power[y, 2.0], $MachinePrecision] * t$95$3), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(27464.7644705 * N[(1.0 / N[(y * t$95$3), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(z / t$95$3), $MachinePrecision] + N[(N[(y * x), $MachinePrecision] / t$95$3), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(i * N[(N[(230661.510616 * N[(1.0 / N[(y * t$95$7), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(27464.7644705 * N[(1.0 / t$95$7), $MachinePrecision]), $MachinePrecision] + N[(N[(t / N[(t$95$7 * N[Power[y, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(t$95$10 / t$95$7), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 160.0], N[(N[(t / t$95$9), $MachinePrecision] + N[(N[(y * N[(230661.510616 + N[(y * t$95$11), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / t$95$9), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.8e+82], N[(N[(N[(N[(t / y), $MachinePrecision] / t$95$1), $MachinePrecision] + N[(N[(x / N[(t$95$1 / N[Power[y, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(y * N[(y * z + 27464.7644705), $MachinePrecision] + 230661.510616), $MachinePrecision] / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(i * N[(N[(N[(230661.510616 / N[(y * t$95$12), $MachinePrecision]), $MachinePrecision] + N[(27464.7644705 / t$95$12), $MachinePrecision]), $MachinePrecision] + N[(N[(N[(t / N[Power[y, 2.0], $MachinePrecision]), $MachinePrecision] / t$95$12), $MachinePrecision] + N[(N[(x / N[(t$95$12 / N[Power[y, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(y / N[(t$95$12 / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$5]]]]]]]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\\
t_2 := b + y \cdot \left(y + a\right)\\
t_3 := {t\_2}^{2}\\
t_4 := y \cdot t\_2\\
t_5 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\
t_6 := c + t\_4\\
t_7 := {t\_6}^{2}\\
t_8 := y \cdot t\_6\\
t_9 := i + t\_8\\
t_10 := y \cdot \left(z + y \cdot x\right)\\
t_11 := 27464.7644705 + t\_10\\
t_12 := {t\_1}^{2}\\
\mathbf{if}\;y \leq -1.18 \cdot 10^{+110}:\\
\;\;\;\;t\_5\\

\mathbf{elif}\;y \leq -5.6 \cdot 10^{+43}:\\
\;\;\;\;\left(\frac{t}{t\_8} + \left(\left(230661.510616 \cdot \frac{1}{t\_4} + \frac{t\_11}{t\_2}\right) - c \cdot \left(230661.510616 \cdot \frac{1}{{y}^{2} \cdot t\_3} + \left(27464.7644705 \cdot \frac{1}{y \cdot t\_3} + \left(\frac{z}{t\_3} + \frac{y \cdot x}{t\_3}\right)\right)\right)\right)\right) - i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot t\_7} + \left(27464.7644705 \cdot \frac{1}{t\_7} + \left(\frac{t}{t\_7 \cdot {y}^{2}} + \frac{t\_10}{t\_7}\right)\right)\right)\\

\mathbf{elif}\;y \leq 160:\\
\;\;\;\;\frac{t}{t\_9} + \frac{y \cdot \left(230661.510616 + y \cdot t\_11\right)}{t\_9}\\

\mathbf{elif}\;y \leq 4.8 \cdot 10^{+82}:\\
\;\;\;\;\left(\frac{\frac{t}{y}}{t\_1} + \left(\frac{x}{\frac{t\_1}{{y}^{3}}} + \frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, z, 27464.7644705\right), 230661.510616\right)}{t\_1}\right)\right) - i \cdot \left(\left(\frac{230661.510616}{y \cdot t\_12} + \frac{27464.7644705}{t\_12}\right) + \left(\frac{\frac{t}{{y}^{2}}}{t\_12} + \left(\frac{x}{\frac{t\_12}{{y}^{2}}} + \frac{y}{\frac{t\_12}{z}}\right)\right)\right)\\

\mathbf{else}:\\
\;\;\;\;t\_5\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if y < -1.1799999999999999e110 or 4.79999999999999996e82 < y

    1. Initial program 0.1%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 68.7%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+68.7%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative68.7%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*82.1%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified82.1%

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

    if -1.1799999999999999e110 < y < -5.60000000000000038e43

    1. Initial program 3.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in i around 0 41.7%

      \[\leadsto \color{blue}{-1 \cdot \left(i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(\frac{t}{{y}^{2} \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \frac{y \cdot \left(z + x \cdot y\right)}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}}\right)\right)\right)\right) + \left(\frac{t}{y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)} + \frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)}{c + y \cdot \left(b + y \cdot \left(a + y\right)\right)}\right)} \]
    4. Taylor expanded in c around 0 79.5%

      \[\leadsto -1 \cdot \left(i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(\frac{t}{{y}^{2} \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \frac{y \cdot \left(z + x \cdot y\right)}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}}\right)\right)\right)\right) + \left(\frac{t}{y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)} + \color{blue}{\left(-1 \cdot \left(c \cdot \left(230661.510616 \cdot \frac{1}{{y}^{2} \cdot {\left(b + y \cdot \left(a + y\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{y \cdot {\left(b + y \cdot \left(a + y\right)\right)}^{2}} + \left(\frac{z}{{\left(b + y \cdot \left(a + y\right)\right)}^{2}} + \frac{x \cdot y}{{\left(b + y \cdot \left(a + y\right)\right)}^{2}}\right)\right)\right)\right) + \left(230661.510616 \cdot \frac{1}{y \cdot \left(b + y \cdot \left(a + y\right)\right)} + \frac{27464.7644705 + y \cdot \left(z + x \cdot y\right)}{b + y \cdot \left(a + y\right)}\right)\right)}\right) \]

    if -5.60000000000000038e43 < y < 160

    1. Initial program 97.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in t around 0 97.6%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}} \]

    if 160 < y < 4.79999999999999996e82

    1. Initial program 29.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 29.4%

      \[\leadsto \frac{\color{blue}{\left(x \cdot {y}^{4} + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)\right)} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in i around 0 49.7%

      \[\leadsto \color{blue}{-1 \cdot \left(i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(\frac{t}{{y}^{2} \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(\frac{x \cdot {y}^{2}}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \frac{y \cdot z}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}}\right)\right)\right)\right)\right) + \left(\frac{t}{y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)} + \left(\frac{x \cdot {y}^{3}}{c + y \cdot \left(b + y \cdot \left(a + y\right)\right)} + \frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)}{c + y \cdot \left(b + y \cdot \left(a + y\right)\right)}\right)\right)} \]
    5. Simplified80.7%

      \[\leadsto \color{blue}{\left(\frac{\frac{t}{y}}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)} + \left(\frac{x}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)}{{y}^{3}}} + \frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, z, 27464.7644705\right), 230661.510616\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)}\right)\right) - i \cdot \left(\left(\frac{230661.510616}{y \cdot {\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}} + \frac{27464.7644705}{{\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}}\right) + \left(\frac{\frac{t}{{y}^{2}}}{{\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}} + \left(\frac{x}{\frac{{\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}}{{y}^{2}}} + \frac{y}{\frac{{\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}}{z}}\right)\right)\right)} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification90.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.18 \cdot 10^{+110}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{elif}\;y \leq -5.6 \cdot 10^{+43}:\\ \;\;\;\;\left(\frac{t}{y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)} + \left(\left(230661.510616 \cdot \frac{1}{y \cdot \left(b + y \cdot \left(y + a\right)\right)} + \frac{27464.7644705 + y \cdot \left(z + y \cdot x\right)}{b + y \cdot \left(y + a\right)}\right) - c \cdot \left(230661.510616 \cdot \frac{1}{{y}^{2} \cdot {\left(b + y \cdot \left(y + a\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{y \cdot {\left(b + y \cdot \left(y + a\right)\right)}^{2}} + \left(\frac{z}{{\left(b + y \cdot \left(y + a\right)\right)}^{2}} + \frac{y \cdot x}{{\left(b + y \cdot \left(y + a\right)\right)}^{2}}\right)\right)\right)\right)\right) - i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot {\left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{{\left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}^{2}} + \left(\frac{t}{{\left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}^{2} \cdot {y}^{2}} + \frac{y \cdot \left(z + y \cdot x\right)}{{\left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}^{2}}\right)\right)\right)\\ \mathbf{elif}\;y \leq 160:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \mathbf{elif}\;y \leq 4.8 \cdot 10^{+82}:\\ \;\;\;\;\left(\frac{\frac{t}{y}}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)} + \left(\frac{x}{\frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)}{{y}^{3}}} + \frac{\mathsf{fma}\left(y, \mathsf{fma}\left(y, z, 27464.7644705\right), 230661.510616\right)}{\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)}\right)\right) - i \cdot \left(\left(\frac{230661.510616}{y \cdot {\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}} + \frac{27464.7644705}{{\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}}\right) + \left(\frac{\frac{t}{{y}^{2}}}{{\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}} + \left(\frac{x}{\frac{{\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}}{{y}^{2}}} + \frac{y}{\frac{{\left(\mathsf{fma}\left(y, \mathsf{fma}\left(y, y + a, b\right), c\right)\right)}^{2}}{z}}\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 2: 85.1% accurate, 0.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := b + y \cdot \left(y + a\right)\\ t_2 := {t\_1}^{2}\\ t_3 := y \cdot t\_1\\ t_4 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ t_5 := c + t\_3\\ t_6 := {t\_5}^{2}\\ t_7 := y \cdot t\_5\\ t_8 := i + t\_7\\ t_9 := y \cdot \left(z + y \cdot x\right)\\ t_10 := 27464.7644705 + t\_9\\ \mathbf{if}\;y \leq -1.52 \cdot 10^{+109}:\\ \;\;\;\;t\_4\\ \mathbf{elif}\;y \leq -5 \cdot 10^{+45}:\\ \;\;\;\;\left(\frac{t}{t\_7} + \left(\left(230661.510616 \cdot \frac{1}{t\_3} + \frac{t\_10}{t\_1}\right) - c \cdot \left(230661.510616 \cdot \frac{1}{{y}^{2} \cdot t\_2} + \left(27464.7644705 \cdot \frac{1}{y \cdot t\_2} + \left(\frac{z}{t\_2} + \frac{y \cdot x}{t\_2}\right)\right)\right)\right)\right) - i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot t\_6} + \left(27464.7644705 \cdot \frac{1}{t\_6} + \left(\frac{t}{t\_6 \cdot {y}^{2}} + \frac{t\_9}{t\_6}\right)\right)\right)\\ \mathbf{elif}\;y \leq 6.5 \cdot 10^{+54}:\\ \;\;\;\;\frac{t}{t\_8} + \frac{y \cdot \left(230661.510616 + y \cdot t\_10\right)}{t\_8}\\ \mathbf{else}:\\ \;\;\;\;t\_4\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (+ b (* y (+ y a))))
        (t_2 (pow t_1 2.0))
        (t_3 (* y t_1))
        (t_4 (+ x (- (/ z y) (/ x (/ y a)))))
        (t_5 (+ c t_3))
        (t_6 (pow t_5 2.0))
        (t_7 (* y t_5))
        (t_8 (+ i t_7))
        (t_9 (* y (+ z (* y x))))
        (t_10 (+ 27464.7644705 t_9)))
   (if (<= y -1.52e+109)
     t_4
     (if (<= y -5e+45)
       (-
        (+
         (/ t t_7)
         (-
          (+ (* 230661.510616 (/ 1.0 t_3)) (/ t_10 t_1))
          (*
           c
           (+
            (* 230661.510616 (/ 1.0 (* (pow y 2.0) t_2)))
            (+
             (* 27464.7644705 (/ 1.0 (* y t_2)))
             (+ (/ z t_2) (/ (* y x) t_2)))))))
        (*
         i
         (+
          (* 230661.510616 (/ 1.0 (* y t_6)))
          (+
           (* 27464.7644705 (/ 1.0 t_6))
           (+ (/ t (* t_6 (pow y 2.0))) (/ t_9 t_6))))))
       (if (<= y 6.5e+54)
         (+ (/ t t_8) (/ (* y (+ 230661.510616 (* y t_10))) t_8))
         t_4)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = b + (y * (y + a));
	double t_2 = pow(t_1, 2.0);
	double t_3 = y * t_1;
	double t_4 = x + ((z / y) - (x / (y / a)));
	double t_5 = c + t_3;
	double t_6 = pow(t_5, 2.0);
	double t_7 = y * t_5;
	double t_8 = i + t_7;
	double t_9 = y * (z + (y * x));
	double t_10 = 27464.7644705 + t_9;
	double tmp;
	if (y <= -1.52e+109) {
		tmp = t_4;
	} else if (y <= -5e+45) {
		tmp = ((t / t_7) + (((230661.510616 * (1.0 / t_3)) + (t_10 / t_1)) - (c * ((230661.510616 * (1.0 / (pow(y, 2.0) * t_2))) + ((27464.7644705 * (1.0 / (y * t_2))) + ((z / t_2) + ((y * x) / t_2))))))) - (i * ((230661.510616 * (1.0 / (y * t_6))) + ((27464.7644705 * (1.0 / t_6)) + ((t / (t_6 * pow(y, 2.0))) + (t_9 / t_6)))));
	} else if (y <= 6.5e+54) {
		tmp = (t / t_8) + ((y * (230661.510616 + (y * t_10))) / t_8);
	} else {
		tmp = t_4;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: t_1
    real(8) :: t_10
    real(8) :: t_2
    real(8) :: t_3
    real(8) :: t_4
    real(8) :: t_5
    real(8) :: t_6
    real(8) :: t_7
    real(8) :: t_8
    real(8) :: t_9
    real(8) :: tmp
    t_1 = b + (y * (y + a))
    t_2 = t_1 ** 2.0d0
    t_3 = y * t_1
    t_4 = x + ((z / y) - (x / (y / a)))
    t_5 = c + t_3
    t_6 = t_5 ** 2.0d0
    t_7 = y * t_5
    t_8 = i + t_7
    t_9 = y * (z + (y * x))
    t_10 = 27464.7644705d0 + t_9
    if (y <= (-1.52d+109)) then
        tmp = t_4
    else if (y <= (-5d+45)) then
        tmp = ((t / t_7) + (((230661.510616d0 * (1.0d0 / t_3)) + (t_10 / t_1)) - (c * ((230661.510616d0 * (1.0d0 / ((y ** 2.0d0) * t_2))) + ((27464.7644705d0 * (1.0d0 / (y * t_2))) + ((z / t_2) + ((y * x) / t_2))))))) - (i * ((230661.510616d0 * (1.0d0 / (y * t_6))) + ((27464.7644705d0 * (1.0d0 / t_6)) + ((t / (t_6 * (y ** 2.0d0))) + (t_9 / t_6)))))
    else if (y <= 6.5d+54) then
        tmp = (t / t_8) + ((y * (230661.510616d0 + (y * t_10))) / t_8)
    else
        tmp = t_4
    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 i) {
	double t_1 = b + (y * (y + a));
	double t_2 = Math.pow(t_1, 2.0);
	double t_3 = y * t_1;
	double t_4 = x + ((z / y) - (x / (y / a)));
	double t_5 = c + t_3;
	double t_6 = Math.pow(t_5, 2.0);
	double t_7 = y * t_5;
	double t_8 = i + t_7;
	double t_9 = y * (z + (y * x));
	double t_10 = 27464.7644705 + t_9;
	double tmp;
	if (y <= -1.52e+109) {
		tmp = t_4;
	} else if (y <= -5e+45) {
		tmp = ((t / t_7) + (((230661.510616 * (1.0 / t_3)) + (t_10 / t_1)) - (c * ((230661.510616 * (1.0 / (Math.pow(y, 2.0) * t_2))) + ((27464.7644705 * (1.0 / (y * t_2))) + ((z / t_2) + ((y * x) / t_2))))))) - (i * ((230661.510616 * (1.0 / (y * t_6))) + ((27464.7644705 * (1.0 / t_6)) + ((t / (t_6 * Math.pow(y, 2.0))) + (t_9 / t_6)))));
	} else if (y <= 6.5e+54) {
		tmp = (t / t_8) + ((y * (230661.510616 + (y * t_10))) / t_8);
	} else {
		tmp = t_4;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = b + (y * (y + a))
	t_2 = math.pow(t_1, 2.0)
	t_3 = y * t_1
	t_4 = x + ((z / y) - (x / (y / a)))
	t_5 = c + t_3
	t_6 = math.pow(t_5, 2.0)
	t_7 = y * t_5
	t_8 = i + t_7
	t_9 = y * (z + (y * x))
	t_10 = 27464.7644705 + t_9
	tmp = 0
	if y <= -1.52e+109:
		tmp = t_4
	elif y <= -5e+45:
		tmp = ((t / t_7) + (((230661.510616 * (1.0 / t_3)) + (t_10 / t_1)) - (c * ((230661.510616 * (1.0 / (math.pow(y, 2.0) * t_2))) + ((27464.7644705 * (1.0 / (y * t_2))) + ((z / t_2) + ((y * x) / t_2))))))) - (i * ((230661.510616 * (1.0 / (y * t_6))) + ((27464.7644705 * (1.0 / t_6)) + ((t / (t_6 * math.pow(y, 2.0))) + (t_9 / t_6)))))
	elif y <= 6.5e+54:
		tmp = (t / t_8) + ((y * (230661.510616 + (y * t_10))) / t_8)
	else:
		tmp = t_4
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(b + Float64(y * Float64(y + a)))
	t_2 = t_1 ^ 2.0
	t_3 = Float64(y * t_1)
	t_4 = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))))
	t_5 = Float64(c + t_3)
	t_6 = t_5 ^ 2.0
	t_7 = Float64(y * t_5)
	t_8 = Float64(i + t_7)
	t_9 = Float64(y * Float64(z + Float64(y * x)))
	t_10 = Float64(27464.7644705 + t_9)
	tmp = 0.0
	if (y <= -1.52e+109)
		tmp = t_4;
	elseif (y <= -5e+45)
		tmp = Float64(Float64(Float64(t / t_7) + Float64(Float64(Float64(230661.510616 * Float64(1.0 / t_3)) + Float64(t_10 / t_1)) - Float64(c * Float64(Float64(230661.510616 * Float64(1.0 / Float64((y ^ 2.0) * t_2))) + Float64(Float64(27464.7644705 * Float64(1.0 / Float64(y * t_2))) + Float64(Float64(z / t_2) + Float64(Float64(y * x) / t_2))))))) - Float64(i * Float64(Float64(230661.510616 * Float64(1.0 / Float64(y * t_6))) + Float64(Float64(27464.7644705 * Float64(1.0 / t_6)) + Float64(Float64(t / Float64(t_6 * (y ^ 2.0))) + Float64(t_9 / t_6))))));
	elseif (y <= 6.5e+54)
		tmp = Float64(Float64(t / t_8) + Float64(Float64(y * Float64(230661.510616 + Float64(y * t_10))) / t_8));
	else
		tmp = t_4;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = b + (y * (y + a));
	t_2 = t_1 ^ 2.0;
	t_3 = y * t_1;
	t_4 = x + ((z / y) - (x / (y / a)));
	t_5 = c + t_3;
	t_6 = t_5 ^ 2.0;
	t_7 = y * t_5;
	t_8 = i + t_7;
	t_9 = y * (z + (y * x));
	t_10 = 27464.7644705 + t_9;
	tmp = 0.0;
	if (y <= -1.52e+109)
		tmp = t_4;
	elseif (y <= -5e+45)
		tmp = ((t / t_7) + (((230661.510616 * (1.0 / t_3)) + (t_10 / t_1)) - (c * ((230661.510616 * (1.0 / ((y ^ 2.0) * t_2))) + ((27464.7644705 * (1.0 / (y * t_2))) + ((z / t_2) + ((y * x) / t_2))))))) - (i * ((230661.510616 * (1.0 / (y * t_6))) + ((27464.7644705 * (1.0 / t_6)) + ((t / (t_6 * (y ^ 2.0))) + (t_9 / t_6)))));
	elseif (y <= 6.5e+54)
		tmp = (t / t_8) + ((y * (230661.510616 + (y * t_10))) / t_8);
	else
		tmp = t_4;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[Power[t$95$1, 2.0], $MachinePrecision]}, Block[{t$95$3 = N[(y * t$95$1), $MachinePrecision]}, Block[{t$95$4 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$5 = N[(c + t$95$3), $MachinePrecision]}, Block[{t$95$6 = N[Power[t$95$5, 2.0], $MachinePrecision]}, Block[{t$95$7 = N[(y * t$95$5), $MachinePrecision]}, Block[{t$95$8 = N[(i + t$95$7), $MachinePrecision]}, Block[{t$95$9 = N[(y * N[(z + N[(y * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$10 = N[(27464.7644705 + t$95$9), $MachinePrecision]}, If[LessEqual[y, -1.52e+109], t$95$4, If[LessEqual[y, -5e+45], N[(N[(N[(t / t$95$7), $MachinePrecision] + N[(N[(N[(230661.510616 * N[(1.0 / t$95$3), $MachinePrecision]), $MachinePrecision] + N[(t$95$10 / t$95$1), $MachinePrecision]), $MachinePrecision] - N[(c * N[(N[(230661.510616 * N[(1.0 / N[(N[Power[y, 2.0], $MachinePrecision] * t$95$2), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(27464.7644705 * N[(1.0 / N[(y * t$95$2), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(z / t$95$2), $MachinePrecision] + N[(N[(y * x), $MachinePrecision] / t$95$2), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(i * N[(N[(230661.510616 * N[(1.0 / N[(y * t$95$6), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(27464.7644705 * N[(1.0 / t$95$6), $MachinePrecision]), $MachinePrecision] + N[(N[(t / N[(t$95$6 * N[Power[y, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(t$95$9 / t$95$6), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 6.5e+54], N[(N[(t / t$95$8), $MachinePrecision] + N[(N[(y * N[(230661.510616 + N[(y * t$95$10), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / t$95$8), $MachinePrecision]), $MachinePrecision], t$95$4]]]]]]]]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := b + y \cdot \left(y + a\right)\\
t_2 := {t\_1}^{2}\\
t_3 := y \cdot t\_1\\
t_4 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\
t_5 := c + t\_3\\
t_6 := {t\_5}^{2}\\
t_7 := y \cdot t\_5\\
t_8 := i + t\_7\\
t_9 := y \cdot \left(z + y \cdot x\right)\\
t_10 := 27464.7644705 + t\_9\\
\mathbf{if}\;y \leq -1.52 \cdot 10^{+109}:\\
\;\;\;\;t\_4\\

\mathbf{elif}\;y \leq -5 \cdot 10^{+45}:\\
\;\;\;\;\left(\frac{t}{t\_7} + \left(\left(230661.510616 \cdot \frac{1}{t\_3} + \frac{t\_10}{t\_1}\right) - c \cdot \left(230661.510616 \cdot \frac{1}{{y}^{2} \cdot t\_2} + \left(27464.7644705 \cdot \frac{1}{y \cdot t\_2} + \left(\frac{z}{t\_2} + \frac{y \cdot x}{t\_2}\right)\right)\right)\right)\right) - i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot t\_6} + \left(27464.7644705 \cdot \frac{1}{t\_6} + \left(\frac{t}{t\_6 \cdot {y}^{2}} + \frac{t\_9}{t\_6}\right)\right)\right)\\

\mathbf{elif}\;y \leq 6.5 \cdot 10^{+54}:\\
\;\;\;\;\frac{t}{t\_8} + \frac{y \cdot \left(230661.510616 + y \cdot t\_10\right)}{t\_8}\\

\mathbf{else}:\\
\;\;\;\;t\_4\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.52000000000000003e109 or 6.5e54 < y

    1. Initial program 1.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 66.4%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+66.4%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative66.4%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*78.5%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified78.5%

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

    if -1.52000000000000003e109 < y < -5e45

    1. Initial program 3.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in i around 0 41.7%

      \[\leadsto \color{blue}{-1 \cdot \left(i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(\frac{t}{{y}^{2} \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \frac{y \cdot \left(z + x \cdot y\right)}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}}\right)\right)\right)\right) + \left(\frac{t}{y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)} + \frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)}{c + y \cdot \left(b + y \cdot \left(a + y\right)\right)}\right)} \]
    4. Taylor expanded in c around 0 79.5%

      \[\leadsto -1 \cdot \left(i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \left(\frac{t}{{y}^{2} \cdot {\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}} + \frac{y \cdot \left(z + x \cdot y\right)}{{\left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}^{2}}\right)\right)\right)\right) + \left(\frac{t}{y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)} + \color{blue}{\left(-1 \cdot \left(c \cdot \left(230661.510616 \cdot \frac{1}{{y}^{2} \cdot {\left(b + y \cdot \left(a + y\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{y \cdot {\left(b + y \cdot \left(a + y\right)\right)}^{2}} + \left(\frac{z}{{\left(b + y \cdot \left(a + y\right)\right)}^{2}} + \frac{x \cdot y}{{\left(b + y \cdot \left(a + y\right)\right)}^{2}}\right)\right)\right)\right) + \left(230661.510616 \cdot \frac{1}{y \cdot \left(b + y \cdot \left(a + y\right)\right)} + \frac{27464.7644705 + y \cdot \left(z + x \cdot y\right)}{b + y \cdot \left(a + y\right)}\right)\right)}\right) \]

    if -5e45 < y < 6.5e54

    1. Initial program 96.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in t around 0 96.3%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification88.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.52 \cdot 10^{+109}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{elif}\;y \leq -5 \cdot 10^{+45}:\\ \;\;\;\;\left(\frac{t}{y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)} + \left(\left(230661.510616 \cdot \frac{1}{y \cdot \left(b + y \cdot \left(y + a\right)\right)} + \frac{27464.7644705 + y \cdot \left(z + y \cdot x\right)}{b + y \cdot \left(y + a\right)}\right) - c \cdot \left(230661.510616 \cdot \frac{1}{{y}^{2} \cdot {\left(b + y \cdot \left(y + a\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{y \cdot {\left(b + y \cdot \left(y + a\right)\right)}^{2}} + \left(\frac{z}{{\left(b + y \cdot \left(y + a\right)\right)}^{2}} + \frac{y \cdot x}{{\left(b + y \cdot \left(y + a\right)\right)}^{2}}\right)\right)\right)\right)\right) - i \cdot \left(230661.510616 \cdot \frac{1}{y \cdot {\left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}^{2}} + \left(27464.7644705 \cdot \frac{1}{{\left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}^{2}} + \left(\frac{t}{{\left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}^{2} \cdot {y}^{2}} + \frac{y \cdot \left(z + y \cdot x\right)}{{\left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}^{2}}\right)\right)\right)\\ \mathbf{elif}\;y \leq 6.5 \cdot 10^{+54}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 84.6% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)\\ \mathbf{if}\;y \leq -3.2 \cdot 10^{+47} \lor \neg \left(y \leq 1.26 \cdot 10^{+54}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{t\_1} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{t\_1}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (+ i (* y (+ c (* y (+ b (* y (+ y a)))))))))
   (if (or (<= y -3.2e+47) (not (<= y 1.26e+54)))
     (+ x (- (/ z y) (/ x (/ y a))))
     (+
      (/ t t_1)
      (/
       (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y (+ z (* y x)))))))
       t_1)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = i + (y * (c + (y * (b + (y * (y + a))))));
	double tmp;
	if ((y <= -3.2e+47) || !(y <= 1.26e+54)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t / t_1) + ((y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x))))))) / t_1);
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: t_1
    real(8) :: tmp
    t_1 = i + (y * (c + (y * (b + (y * (y + a))))))
    if ((y <= (-3.2d+47)) .or. (.not. (y <= 1.26d+54))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = (t / t_1) + ((y * (230661.510616d0 + (y * (27464.7644705d0 + (y * (z + (y * x))))))) / t_1)
    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 i) {
	double t_1 = i + (y * (c + (y * (b + (y * (y + a))))));
	double tmp;
	if ((y <= -3.2e+47) || !(y <= 1.26e+54)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t / t_1) + ((y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x))))))) / t_1);
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = i + (y * (c + (y * (b + (y * (y + a))))))
	tmp = 0
	if (y <= -3.2e+47) or not (y <= 1.26e+54):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = (t / t_1) + ((y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x))))))) / t_1)
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(i + Float64(y * Float64(c + Float64(y * Float64(b + Float64(y * Float64(y + a)))))))
	tmp = 0.0
	if ((y <= -3.2e+47) || !(y <= 1.26e+54))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(Float64(t / t_1) + Float64(Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * Float64(z + Float64(y * x))))))) / t_1));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = i + (y * (c + (y * (b + (y * (y + a))))));
	tmp = 0.0;
	if ((y <= -3.2e+47) || ~((y <= 1.26e+54)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = (t / t_1) + ((y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x))))))) / t_1);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(i + N[(y * N[(c + N[(y * N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[y, -3.2e+47], N[Not[LessEqual[y, 1.26e+54]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t / t$95$1), $MachinePrecision] + N[(N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * N[(z + N[(y * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / t$95$1), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)\\
\mathbf{if}\;y \leq -3.2 \cdot 10^{+47} \lor \neg \left(y \leq 1.26 \cdot 10^{+54}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t}{t\_1} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{t\_1}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -3.2e47 or 1.25999999999999995e54 < y

    1. Initial program 1.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 63.3%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+63.3%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative63.3%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*74.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified74.3%

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

    if -3.2e47 < y < 1.25999999999999995e54

    1. Initial program 96.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in t around 0 96.3%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification86.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -3.2 \cdot 10^{+47} \lor \neg \left(y \leq 1.26 \cdot 10^{+54}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)} + \frac{y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 84.6% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -4.2 \cdot 10^{+47} \lor \neg \left(y \leq 1.3 \cdot 10^{+56}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -4.2e+47) (not (<= y 1.3e+56)))
   (+ x (- (/ z y) (/ x (/ y a))))
   (/
    (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y (+ z (* y x))))))))
    (+ i (* y (+ c (* y (+ b (* y (+ y a))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -4.2e+47) || !(y <= 1.3e+56)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))))) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if ((y <= (-4.2d+47)) .or. (.not. (y <= 1.3d+56))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * (z + (y * x)))))))) / (i + (y * (c + (y * (b + (y * (y + a)))))))
    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 i) {
	double tmp;
	if ((y <= -4.2e+47) || !(y <= 1.3e+56)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))))) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -4.2e+47) or not (y <= 1.3e+56):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))))) / (i + (y * (c + (y * (b + (y * (y + a)))))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -4.2e+47) || !(y <= 1.3e+56))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * Float64(z + Float64(y * x)))))))) / Float64(i + Float64(y * Float64(c + Float64(y * Float64(b + Float64(y * Float64(y + a))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -4.2e+47) || ~((y <= 1.3e+56)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))))) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -4.2e+47], N[Not[LessEqual[y, 1.3e+56]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * N[(z + N[(y * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.2 \cdot 10^{+47} \lor \neg \left(y \leq 1.3 \cdot 10^{+56}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -4.2e47 or 1.30000000000000005e56 < y

    1. Initial program 1.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 63.3%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+63.3%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative63.3%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*74.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified74.3%

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

    if -4.2e47 < y < 1.30000000000000005e56

    1. Initial program 96.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
  3. Recombined 2 regimes into one program.
  4. Final simplification86.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -4.2 \cdot 10^{+47} \lor \neg \left(y \leq 1.3 \cdot 10^{+56}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 80.8% accurate, 0.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -5.8 \cdot 10^{+39} \lor \neg \left(y \leq 7.4 \cdot 10^{+27}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -5.8e+39) (not (<= y 7.4e+27)))
   (+ x (- (/ z y) (/ x (/ y a))))
   (/
    (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))
    (+ i (* y (+ c (* y (+ b (* y (+ y a))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -5.8e+39) || !(y <= 7.4e+27)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if ((y <= (-5.8d+39)) .or. (.not. (y <= 7.4d+27))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / (i + (y * (c + (y * (b + (y * (y + a)))))))
    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 i) {
	double tmp;
	if ((y <= -5.8e+39) || !(y <= 7.4e+27)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -5.8e+39) or not (y <= 7.4e+27):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * (b + (y * (y + a)))))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -5.8e+39) || !(y <= 7.4e+27))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / Float64(i + Float64(y * Float64(c + Float64(y * Float64(b + Float64(y * Float64(y + a))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -5.8e+39) || ~((y <= 7.4e+27)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -5.8e+39], N[Not[LessEqual[y, 7.4e+27]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.8 \cdot 10^{+39} \lor \neg \left(y \leq 7.4 \cdot 10^{+27}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -5.80000000000000059e39 or 7.40000000000000004e27 < y

    1. Initial program 3.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 61.5%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+61.5%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative61.5%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*72.1%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified72.1%

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

    if -5.80000000000000059e39 < y < 7.40000000000000004e27

    1. Initial program 98.2%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 91.8%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification82.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.8 \cdot 10^{+39} \lor \neg \left(y \leq 7.4 \cdot 10^{+27}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 78.7% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{if}\;y \leq -1.2 \cdot 10^{+79}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq -1250000:\\ \;\;\;\;\frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)}{c + y \cdot \left(b + y \cdot \left(y + a\right)\right)}\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+27}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (+ x (- (/ z y) (/ x (/ y a))))))
   (if (<= y -1.2e+79)
     t_1
     (if (<= y -1250000.0)
       (/
        (+ 230661.510616 (* y (+ 27464.7644705 (* y (+ z (* y x))))))
        (+ c (* y (+ b (* y (+ y a))))))
       (if (<= y 4e+27)
         (/
          (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))
          (+ i (* y (+ c (* y b)))))
         t_1)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = x + ((z / y) - (x / (y / a)));
	double tmp;
	if (y <= -1.2e+79) {
		tmp = t_1;
	} else if (y <= -1250000.0) {
		tmp = (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))) / (c + (y * (b + (y * (y + a)))));
	} else if (y <= 4e+27) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))));
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: t_1
    real(8) :: tmp
    t_1 = x + ((z / y) - (x / (y / a)))
    if (y <= (-1.2d+79)) then
        tmp = t_1
    else if (y <= (-1250000.0d0)) then
        tmp = (230661.510616d0 + (y * (27464.7644705d0 + (y * (z + (y * x)))))) / (c + (y * (b + (y * (y + a)))))
    else if (y <= 4d+27) then
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / (i + (y * (c + (y * b))))
    else
        tmp = t_1
    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 i) {
	double t_1 = x + ((z / y) - (x / (y / a)));
	double tmp;
	if (y <= -1.2e+79) {
		tmp = t_1;
	} else if (y <= -1250000.0) {
		tmp = (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))) / (c + (y * (b + (y * (y + a)))));
	} else if (y <= 4e+27) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))));
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = x + ((z / y) - (x / (y / a)))
	tmp = 0
	if y <= -1.2e+79:
		tmp = t_1
	elif y <= -1250000.0:
		tmp = (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))) / (c + (y * (b + (y * (y + a)))))
	elif y <= 4e+27:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))))
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))))
	tmp = 0.0
	if (y <= -1.2e+79)
		tmp = t_1;
	elseif (y <= -1250000.0)
		tmp = Float64(Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * Float64(z + Float64(y * x)))))) / Float64(c + Float64(y * Float64(b + Float64(y * Float64(y + a))))));
	elseif (y <= 4e+27)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = x + ((z / y) - (x / (y / a)));
	tmp = 0.0;
	if (y <= -1.2e+79)
		tmp = t_1;
	elseif (y <= -1250000.0)
		tmp = (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))) / (c + (y * (b + (y * (y + a)))));
	elseif (y <= 4e+27)
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))));
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -1.2e+79], t$95$1, If[LessEqual[y, -1250000.0], N[(N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * N[(z + N[(y * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(c + N[(y * N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4e+27], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\
\mathbf{if}\;y \leq -1.2 \cdot 10^{+79}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq -1250000:\\
\;\;\;\;\frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)}{c + y \cdot \left(b + y \cdot \left(y + a\right)\right)}\\

\mathbf{elif}\;y \leq 4 \cdot 10^{+27}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.19999999999999993e79 or 4.0000000000000001e27 < y

    1. Initial program 2.4%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 64.0%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+64.0%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative64.0%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*75.4%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified75.4%

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

    if -1.19999999999999993e79 < y < -1.25e6

    1. Initial program 51.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in i around 0 46.6%

      \[\leadsto \color{blue}{\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}} \]
    4. Taylor expanded in t around 0 59.2%

      \[\leadsto \color{blue}{\frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)}{c + y \cdot \left(b + y \cdot \left(a + y\right)\right)}} \]

    if -1.25e6 < y < 4.0000000000000001e27

    1. Initial program 99.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 94.1%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 90.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification81.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.2 \cdot 10^{+79}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{elif}\;y \leq -1250000:\\ \;\;\;\;\frac{230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)}{c + y \cdot \left(b + y \cdot \left(y + a\right)\right)}\\ \mathbf{elif}\;y \leq 4 \cdot 10^{+27}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 7: 68.2% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{if}\;y \leq -6 \cdot 10^{+35}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 5.6 \cdot 10^{-72}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \mathbf{elif}\;y \leq 21:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (+ x (- (/ z y) (/ x (/ y a))))))
   (if (<= y -6e+35)
     t_1
     (if (<= y 5.6e-72)
       (/ t (+ i (* y (+ c (* y (+ b (* y (+ y a))))))))
       (if (<= y 21.0)
         (/
          (+
           t
           (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y (+ z (* y x))))))))
          i)
         t_1)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = x + ((z / y) - (x / (y / a)));
	double tmp;
	if (y <= -6e+35) {
		tmp = t_1;
	} else if (y <= 5.6e-72) {
		tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))));
	} else if (y <= 21.0) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))))) / i;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: t_1
    real(8) :: tmp
    t_1 = x + ((z / y) - (x / (y / a)))
    if (y <= (-6d+35)) then
        tmp = t_1
    else if (y <= 5.6d-72) then
        tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))))
    else if (y <= 21.0d0) then
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * (z + (y * x)))))))) / i
    else
        tmp = t_1
    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 i) {
	double t_1 = x + ((z / y) - (x / (y / a)));
	double tmp;
	if (y <= -6e+35) {
		tmp = t_1;
	} else if (y <= 5.6e-72) {
		tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))));
	} else if (y <= 21.0) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))))) / i;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = x + ((z / y) - (x / (y / a)))
	tmp = 0
	if y <= -6e+35:
		tmp = t_1
	elif y <= 5.6e-72:
		tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))))
	elif y <= 21.0:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))))) / i
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))))
	tmp = 0.0
	if (y <= -6e+35)
		tmp = t_1;
	elseif (y <= 5.6e-72)
		tmp = Float64(t / Float64(i + Float64(y * Float64(c + Float64(y * Float64(b + Float64(y * Float64(y + a))))))));
	elseif (y <= 21.0)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * Float64(z + Float64(y * x)))))))) / i);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = x + ((z / y) - (x / (y / a)));
	tmp = 0.0;
	if (y <= -6e+35)
		tmp = t_1;
	elseif (y <= 5.6e-72)
		tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))));
	elseif (y <= 21.0)
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * (z + (y * x)))))))) / i;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -6e+35], t$95$1, If[LessEqual[y, 5.6e-72], N[(t / N[(i + N[(y * N[(c + N[(y * N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 21.0], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * N[(z + N[(y * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / i), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\
\mathbf{if}\;y \leq -6 \cdot 10^{+35}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 5.6 \cdot 10^{-72}:\\
\;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\

\mathbf{elif}\;y \leq 21:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -5.99999999999999981e35 or 21 < y

    1. Initial program 5.7%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 60.1%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+60.1%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative60.1%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*70.4%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified70.4%

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

    if -5.99999999999999981e35 < y < 5.5999999999999996e-72

    1. Initial program 97.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 72.5%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}} \]

    if 5.5999999999999996e-72 < y < 21

    1. Initial program 99.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in i around inf 50.1%

      \[\leadsto \color{blue}{\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + x \cdot y\right)\right)\right)}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification69.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6 \cdot 10^{+35}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{elif}\;y \leq 5.6 \cdot 10^{-72}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \mathbf{elif}\;y \leq 21:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot \left(z + y \cdot x\right)\right)\right)}{i}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 8: 77.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -2.5 \cdot 10^{+23} \lor \neg \left(y \leq 4.3 \cdot 10^{+26}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -2.5e+23) (not (<= y 4.3e+26)))
   (+ x (- (/ z y) (/ x (/ y a))))
   (/
    (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z))))))
    (+ i (* y (+ c (* y b)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -2.5e+23) || !(y <= 4.3e+26)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if ((y <= (-2.5d+23)) .or. (.not. (y <= 4.3d+26))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / (i + (y * (c + (y * b))))
    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 i) {
	double tmp;
	if ((y <= -2.5e+23) || !(y <= 4.3e+26)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -2.5e+23) or not (y <= 4.3e+26):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -2.5e+23) || !(y <= 4.3e+26))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -2.5e+23) || ~((y <= 4.3e+26)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / (i + (y * (c + (y * b))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -2.5e+23], N[Not[LessEqual[y, 4.3e+26]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.5 \cdot 10^{+23} \lor \neg \left(y \leq 4.3 \cdot 10^{+26}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -2.5e23 or 4.2999999999999998e26 < y

    1. Initial program 7.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 59.0%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+59.0%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative59.0%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*69.0%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified69.0%

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

    if -2.5e23 < y < 4.2999999999999998e26

    1. Initial program 98.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 93.5%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 89.8%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification79.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.5 \cdot 10^{+23} \lor \neg \left(y \leq 4.3 \cdot 10^{+26}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 9: 75.8% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -2.1 \cdot 10^{+33} \lor \neg \left(y \leq 1.6 \cdot 10^{+16}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -2.1e+33) (not (<= y 1.6e+16)))
   (+ x (- (/ z y) (/ x (/ y a))))
   (/ (+ t (* y 230661.510616)) (+ i (* y (+ c (* y (+ b (* y (+ y a))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -2.1e+33) || !(y <= 1.6e+16)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if ((y <= (-2.1d+33)) .or. (.not. (y <= 1.6d+16))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = (t + (y * 230661.510616d0)) / (i + (y * (c + (y * (b + (y * (y + a)))))))
    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 i) {
	double tmp;
	if ((y <= -2.1e+33) || !(y <= 1.6e+16)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -2.1e+33) or not (y <= 1.6e+16):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * (b + (y * (y + a)))))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -2.1e+33) || !(y <= 1.6e+16))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(Float64(t + Float64(y * 230661.510616)) / Float64(i + Float64(y * Float64(c + Float64(y * Float64(b + Float64(y * Float64(y + a))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -2.1e+33) || ~((y <= 1.6e+16)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = (t + (y * 230661.510616)) / (i + (y * (c + (y * (b + (y * (y + a)))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -2.1e+33], N[Not[LessEqual[y, 1.6e+16]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * 230661.510616), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.1 \cdot 10^{+33} \lor \neg \left(y \leq 1.6 \cdot 10^{+16}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -2.1000000000000001e33 or 1.6e16 < y

    1. Initial program 4.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 60.6%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+60.6%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative60.6%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*70.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified70.9%

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

    if -2.1000000000000001e33 < y < 1.6e16

    1. Initial program 98.2%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 79.3%

      \[\leadsto \frac{\color{blue}{230661.510616 \cdot y} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Step-by-step derivation
      1. *-commutative79.3%

        \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    5. Simplified79.3%

      \[\leadsto \frac{\color{blue}{y \cdot 230661.510616} + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification75.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -2.1 \cdot 10^{+33} \lor \neg \left(y \leq 1.6 \cdot 10^{+16}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot 230661.510616}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 10: 67.0% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{if}\;y \leq -1.55 \cdot 10^{+49}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;y \leq 6.8 \cdot 10^{-73}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 160:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (let* ((t_1 (+ x (- (/ z y) (/ x (/ y a))))))
   (if (<= y -1.55e+49)
     t_1
     (if (<= y 6.8e-73)
       (/ t (+ i (* y (+ c (* y b)))))
       (if (<= y 160.0)
         (/ (+ t (* y (+ 230661.510616 (* y (+ 27464.7644705 (* y z)))))) i)
         t_1)))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double t_1 = x + ((z / y) - (x / (y / a)));
	double tmp;
	if (y <= -1.55e+49) {
		tmp = t_1;
	} else if (y <= 6.8e-73) {
		tmp = t / (i + (y * (c + (y * b))));
	} else if (y <= 160.0) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	} else {
		tmp = t_1;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: t_1
    real(8) :: tmp
    t_1 = x + ((z / y) - (x / (y / a)))
    if (y <= (-1.55d+49)) then
        tmp = t_1
    else if (y <= 6.8d-73) then
        tmp = t / (i + (y * (c + (y * b))))
    else if (y <= 160.0d0) then
        tmp = (t + (y * (230661.510616d0 + (y * (27464.7644705d0 + (y * z)))))) / i
    else
        tmp = t_1
    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 i) {
	double t_1 = x + ((z / y) - (x / (y / a)));
	double tmp;
	if (y <= -1.55e+49) {
		tmp = t_1;
	} else if (y <= 6.8e-73) {
		tmp = t / (i + (y * (c + (y * b))));
	} else if (y <= 160.0) {
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	} else {
		tmp = t_1;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	t_1 = x + ((z / y) - (x / (y / a)))
	tmp = 0
	if y <= -1.55e+49:
		tmp = t_1
	elif y <= 6.8e-73:
		tmp = t / (i + (y * (c + (y * b))))
	elif y <= 160.0:
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i
	else:
		tmp = t_1
	return tmp
function code(x, y, z, t, a, b, c, i)
	t_1 = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))))
	tmp = 0.0
	if (y <= -1.55e+49)
		tmp = t_1;
	elseif (y <= 6.8e-73)
		tmp = Float64(t / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	elseif (y <= 160.0)
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * Float64(27464.7644705 + Float64(y * z)))))) / i);
	else
		tmp = t_1;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	t_1 = x + ((z / y) - (x / (y / a)));
	tmp = 0.0;
	if (y <= -1.55e+49)
		tmp = t_1;
	elseif (y <= 6.8e-73)
		tmp = t / (i + (y * (c + (y * b))));
	elseif (y <= 160.0)
		tmp = (t + (y * (230661.510616 + (y * (27464.7644705 + (y * z)))))) / i;
	else
		tmp = t_1;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := Block[{t$95$1 = N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -1.55e+49], t$95$1, If[LessEqual[y, 6.8e-73], N[(t / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 160.0], N[(N[(t + N[(y * N[(230661.510616 + N[(y * N[(27464.7644705 + N[(y * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / i), $MachinePrecision], t$95$1]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\
\mathbf{if}\;y \leq -1.55 \cdot 10^{+49}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;y \leq 6.8 \cdot 10^{-73}:\\
\;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\

\mathbf{elif}\;y \leq 160:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -1.54999999999999996e49 or 160 < y

    1. Initial program 4.1%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 62.1%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+62.1%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative62.1%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*72.7%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified72.7%

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

    if -1.54999999999999996e49 < y < 6.80000000000000042e-73

    1. Initial program 96.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 90.2%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 85.1%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    5. Taylor expanded in t around inf 68.4%

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

    if 6.80000000000000042e-73 < y < 160

    1. Initial program 99.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 87.5%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in i around inf 42.6%

      \[\leadsto \color{blue}{\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification67.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.55 \cdot 10^{+49}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{elif}\;y \leq 6.8 \cdot 10^{-73}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \mathbf{elif}\;y \leq 160:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot \left(27464.7644705 + y \cdot z\right)\right)}{i}\\ \mathbf{else}:\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 11: 74.3% accurate, 1.1× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.65 \cdot 10^{+23} \lor \neg \left(y \leq 1.5 \cdot 10^{+18}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.65e+23) (not (<= y 1.5e+18)))
   (+ x (- (/ z y) (/ x (/ y a))))
   (/
    (+ t (* y (+ 230661.510616 (* y 27464.7644705))))
    (+ i (* y (+ c (* y b)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -1.65e+23) || !(y <= 1.5e+18)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * b))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if ((y <= (-1.65d+23)) .or. (.not. (y <= 1.5d+18))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = (t + (y * (230661.510616d0 + (y * 27464.7644705d0)))) / (i + (y * (c + (y * b))))
    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 i) {
	double tmp;
	if ((y <= -1.65e+23) || !(y <= 1.5e+18)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * b))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -1.65e+23) or not (y <= 1.5e+18):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * b))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -1.65e+23) || !(y <= 1.5e+18))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(Float64(t + Float64(y * Float64(230661.510616 + Float64(y * 27464.7644705)))) / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -1.65e+23) || ~((y <= 1.5e+18)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = (t + (y * (230661.510616 + (y * 27464.7644705)))) / (i + (y * (c + (y * b))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -1.65e+23], N[Not[LessEqual[y, 1.5e+18]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t + N[(y * N[(230661.510616 + N[(y * 27464.7644705), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.65 \cdot 10^{+23} \lor \neg \left(y \leq 1.5 \cdot 10^{+18}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot b\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.65000000000000015e23 or 1.5e18 < y

    1. Initial program 8.7%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 58.6%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+58.6%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative58.6%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*68.5%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified68.5%

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

    if -1.65000000000000015e23 < y < 1.5e18

    1. Initial program 98.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 93.5%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 89.8%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    5. Taylor expanded in z around 0 80.1%

      \[\leadsto \frac{\color{blue}{y \cdot \left(230661.510616 + 27464.7644705 \cdot y\right)} + t}{\left(b \cdot y + c\right) \cdot y + i} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification74.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.65 \cdot 10^{+23} \lor \neg \left(y \leq 1.5 \cdot 10^{+18}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t + y \cdot \left(230661.510616 + y \cdot 27464.7644705\right)}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 12: 69.1% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -6.6 \cdot 10^{+33} \lor \neg \left(y \leq 1.5 \cdot 10^{+18}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -6.6e+33) (not (<= y 1.5e+18)))
   (+ x (- (/ z y) (/ x (/ y a))))
   (/ t (+ i (* y (+ c (* y (+ b (* y (+ y a))))))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -6.6e+33) || !(y <= 1.5e+18)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if ((y <= (-6.6d+33)) .or. (.not. (y <= 1.5d+18))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))))
    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 i) {
	double tmp;
	if ((y <= -6.6e+33) || !(y <= 1.5e+18)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -6.6e+33) or not (y <= 1.5e+18):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -6.6e+33) || !(y <= 1.5e+18))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(t / Float64(i + Float64(y * Float64(c + Float64(y * Float64(b + Float64(y * Float64(y + a))))))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -6.6e+33) || ~((y <= 1.5e+18)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = t / (i + (y * (c + (y * (b + (y * (y + a)))))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -6.6e+33], N[Not[LessEqual[y, 1.5e+18]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t / N[(i + N[(y * N[(c + N[(y * N[(b + N[(y * N[(y + a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.6 \cdot 10^{+33} \lor \neg \left(y \leq 1.5 \cdot 10^{+18}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -6.59999999999999953e33 or 1.5e18 < y

    1. Initial program 4.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 60.6%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+60.6%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative60.6%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*70.9%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified70.9%

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

    if -6.59999999999999953e33 < y < 1.5e18

    1. Initial program 98.2%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in t around inf 65.1%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(a + y\right)\right)\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification67.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -6.6 \cdot 10^{+33} \lor \neg \left(y \leq 1.5 \cdot 10^{+18}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot \left(b + y \cdot \left(y + a\right)\right)\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 13: 57.5% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.82 \cdot 10^{-28} \lor \neg \left(y \leq 2.35 \cdot 10^{+22}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -1.82e-28) (not (<= y 2.35e+22)))
   (+ x (- (/ z y) (/ x (/ y a))))
   (/ t i)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -1.82e-28) || !(y <= 2.35e+22)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = t / i;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if ((y <= (-1.82d-28)) .or. (.not. (y <= 2.35d+22))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = t / i
    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 i) {
	double tmp;
	if ((y <= -1.82e-28) || !(y <= 2.35e+22)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = t / i;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -1.82e-28) or not (y <= 2.35e+22):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = t / i
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -1.82e-28) || !(y <= 2.35e+22))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(t / i);
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -1.82e-28) || ~((y <= 2.35e+22)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = t / i;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -1.82e-28], N[Not[LessEqual[y, 2.35e+22]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t / i), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.82 \cdot 10^{-28} \lor \neg \left(y \leq 2.35 \cdot 10^{+22}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.82000000000000004e-28 or 2.3500000000000001e22 < y

    1. Initial program 14.1%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 55.5%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+55.5%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative55.5%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*64.7%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified64.7%

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

    if -1.82000000000000004e-28 < y < 2.3500000000000001e22

    1. Initial program 99.5%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 45.8%

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification55.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.82 \cdot 10^{-28} \lor \neg \left(y \leq 2.35 \cdot 10^{+22}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i}\\ \end{array} \]
  5. Add Preprocessing

Alternative 14: 67.6% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -7.5 \cdot 10^{+47} \lor \neg \left(y \leq 6 \cdot 10^{+17}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (or (<= y -7.5e+47) (not (<= y 6e+17)))
   (+ x (- (/ z y) (/ x (/ y a))))
   (/ t (+ i (* y (+ c (* y b)))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if ((y <= -7.5e+47) || !(y <= 6e+17)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = t / (i + (y * (c + (y * b))));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if ((y <= (-7.5d+47)) .or. (.not. (y <= 6d+17))) then
        tmp = x + ((z / y) - (x / (y / a)))
    else
        tmp = t / (i + (y * (c + (y * b))))
    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 i) {
	double tmp;
	if ((y <= -7.5e+47) || !(y <= 6e+17)) {
		tmp = x + ((z / y) - (x / (y / a)));
	} else {
		tmp = t / (i + (y * (c + (y * b))));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if (y <= -7.5e+47) or not (y <= 6e+17):
		tmp = x + ((z / y) - (x / (y / a)))
	else:
		tmp = t / (i + (y * (c + (y * b))))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if ((y <= -7.5e+47) || !(y <= 6e+17))
		tmp = Float64(x + Float64(Float64(z / y) - Float64(x / Float64(y / a))));
	else
		tmp = Float64(t / Float64(i + Float64(y * Float64(c + Float64(y * b)))));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if ((y <= -7.5e+47) || ~((y <= 6e+17)))
		tmp = x + ((z / y) - (x / (y / a)));
	else
		tmp = t / (i + (y * (c + (y * b))));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[Or[LessEqual[y, -7.5e+47], N[Not[LessEqual[y, 6e+17]], $MachinePrecision]], N[(x + N[(N[(z / y), $MachinePrecision] - N[(x / N[(y / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t / N[(i + N[(y * N[(c + N[(y * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.5 \cdot 10^{+47} \lor \neg \left(y \leq 6 \cdot 10^{+17}\right):\\
\;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -7.4999999999999999e47 or 6e17 < y

    1. Initial program 3.3%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 62.6%

      \[\leadsto \color{blue}{\left(x + \frac{z}{y}\right) - \frac{a \cdot x}{y}} \]
    4. Step-by-step derivation
      1. associate--l+62.6%

        \[\leadsto \color{blue}{x + \left(\frac{z}{y} - \frac{a \cdot x}{y}\right)} \]
      2. *-commutative62.6%

        \[\leadsto x + \left(\frac{z}{y} - \frac{\color{blue}{x \cdot a}}{y}\right) \]
      3. associate-/l*73.3%

        \[\leadsto x + \left(\frac{z}{y} - \color{blue}{\frac{x}{\frac{y}{a}}}\right) \]
    5. Simplified73.3%

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

    if -7.4999999999999999e47 < y < 6e17

    1. Initial program 96.8%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0 89.8%

      \[\leadsto \frac{\left(\left(\color{blue}{y \cdot z} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around 0 84.3%

      \[\leadsto \frac{\left(\left(y \cdot z + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\color{blue}{b \cdot y} + c\right) \cdot y + i} \]
    5. Taylor expanded in t around inf 60.6%

      \[\leadsto \color{blue}{\frac{t}{i + y \cdot \left(c + b \cdot y\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification66.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -7.5 \cdot 10^{+47} \lor \neg \left(y \leq 6 \cdot 10^{+17}\right):\\ \;\;\;\;x + \left(\frac{z}{y} - \frac{x}{\frac{y}{a}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{t}{i + y \cdot \left(c + y \cdot b\right)}\\ \end{array} \]
  5. Add Preprocessing

Alternative 15: 50.9% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -0.0145:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 4.4 \cdot 10^{-20}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x - \frac{a}{\frac{y}{x}}\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -0.0145) x (if (<= y 4.4e-20) (/ t i) (- x (/ a (/ y x))))))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -0.0145) {
		tmp = x;
	} else if (y <= 4.4e-20) {
		tmp = t / i;
	} else {
		tmp = x - (a / (y / x));
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if (y <= (-0.0145d0)) then
        tmp = x
    else if (y <= 4.4d-20) then
        tmp = t / i
    else
        tmp = x - (a / (y / x))
    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 i) {
	double tmp;
	if (y <= -0.0145) {
		tmp = x;
	} else if (y <= 4.4e-20) {
		tmp = t / i;
	} else {
		tmp = x - (a / (y / x));
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -0.0145:
		tmp = x
	elif y <= 4.4e-20:
		tmp = t / i
	else:
		tmp = x - (a / (y / x))
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -0.0145)
		tmp = x;
	elseif (y <= 4.4e-20)
		tmp = Float64(t / i);
	else
		tmp = Float64(x - Float64(a / Float64(y / x)));
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if (y <= -0.0145)
		tmp = x;
	elseif (y <= 4.4e-20)
		tmp = t / i;
	else
		tmp = x - (a / (y / x));
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -0.0145], x, If[LessEqual[y, 4.4e-20], N[(t / i), $MachinePrecision], N[(x - N[(a / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -0.0145:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 4.4 \cdot 10^{-20}:\\
\;\;\;\;\frac{t}{i}\\

\mathbf{else}:\\
\;\;\;\;x - \frac{a}{\frac{y}{x}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < -0.0145000000000000007

    1. Initial program 14.9%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 47.9%

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

    if -0.0145000000000000007 < y < 4.39999999999999982e-20

    1. Initial program 99.6%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 47.7%

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

    if 4.39999999999999982e-20 < y

    1. Initial program 18.6%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in x around inf 14.0%

      \[\leadsto \frac{\left(\left(\color{blue}{x \cdot {y}^{2}} + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    4. Taylor expanded in y around inf 44.9%

      \[\leadsto \color{blue}{x + -1 \cdot \frac{a \cdot x}{y}} \]
    5. Step-by-step derivation
      1. mul-1-neg44.9%

        \[\leadsto x + \color{blue}{\left(-\frac{a \cdot x}{y}\right)} \]
      2. unsub-neg44.9%

        \[\leadsto \color{blue}{x - \frac{a \cdot x}{y}} \]
      3. associate-/l*54.3%

        \[\leadsto x - \color{blue}{\frac{a}{\frac{y}{x}}} \]
    6. Simplified54.3%

      \[\leadsto \color{blue}{x - \frac{a}{\frac{y}{x}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification49.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -0.0145:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 4.4 \cdot 10^{-20}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x - \frac{a}{\frac{y}{x}}\\ \end{array} \]
  5. Add Preprocessing

Alternative 16: 51.0% accurate, 2.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -0.03:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 4.4 \cdot 10^{-20}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z t a b c i)
 :precision binary64
 (if (<= y -0.03) x (if (<= y 4.4e-20) (/ t i) x)))
double code(double x, double y, double z, double t, double a, double b, double c, double i) {
	double tmp;
	if (y <= -0.03) {
		tmp = x;
	} else if (y <= 4.4e-20) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i)
    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) :: tmp
    if (y <= (-0.03d0)) then
        tmp = x
    else if (y <= 4.4d-20) then
        tmp = t / i
    else
        tmp = x
    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 i) {
	double tmp;
	if (y <= -0.03) {
		tmp = x;
	} else if (y <= 4.4e-20) {
		tmp = t / i;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z, t, a, b, c, i):
	tmp = 0
	if y <= -0.03:
		tmp = x
	elif y <= 4.4e-20:
		tmp = t / i
	else:
		tmp = x
	return tmp
function code(x, y, z, t, a, b, c, i)
	tmp = 0.0
	if (y <= -0.03)
		tmp = x;
	elseif (y <= 4.4e-20)
		tmp = Float64(t / i);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z, t, a, b, c, i)
	tmp = 0.0;
	if (y <= -0.03)
		tmp = x;
	elseif (y <= 4.4e-20)
		tmp = t / i;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_, t_, a_, b_, c_, i_] := If[LessEqual[y, -0.03], x, If[LessEqual[y, 4.4e-20], N[(t / i), $MachinePrecision], x]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -0.03:\\
\;\;\;\;x\\

\mathbf{elif}\;y \leq 4.4 \cdot 10^{-20}:\\
\;\;\;\;\frac{t}{i}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -0.029999999999999999 or 4.39999999999999982e-20 < y

    1. Initial program 16.6%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around inf 50.2%

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

    if -0.029999999999999999 < y < 4.39999999999999982e-20

    1. Initial program 99.6%

      \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0 47.7%

      \[\leadsto \color{blue}{\frac{t}{i}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification49.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -0.03:\\ \;\;\;\;x\\ \mathbf{elif}\;y \leq 4.4 \cdot 10^{-20}:\\ \;\;\;\;\frac{t}{i}\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]
  5. Add Preprocessing

Alternative 17: 26.0% accurate, 33.0× speedup?

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

\\
x
\end{array}
Derivation
  1. Initial program 54.8%

    \[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644705\right) \cdot y + 230661.510616\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i} \]
  2. Add Preprocessing
  3. Taylor expanded in y around inf 28.7%

    \[\leadsto \color{blue}{x} \]
  4. Final simplification28.7%

    \[\leadsto x \]
  5. Add Preprocessing

Reproduce

?
herbie shell --seed 2024029 
(FPCore (x y z t a b c i)
  :name "Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2"
  :precision binary64
  (/ (+ (* (+ (* (+ (* (+ (* x y) z) y) 27464.7644705) y) 230661.510616) y) t) (+ (* (+ (* (+ (* (+ y a) y) b) y) c) y) i)))