
(FPCore (x)
:precision binary64
(let* ((t_0 (* (* x x) (* x x)))
(t_1 (* t_0 (* x x)))
(t_2 (* t_1 (* x x)))
(t_3 (* t_2 (* x x))))
(*
(/
(+
(+
(+
(+ (+ 1.0 (* 0.1049934947 (* x x))) (* 0.0424060604 t_0))
(* 0.0072644182 t_1))
(* 0.0005064034 t_2))
(* 0.0001789971 t_3))
(+
(+
(+
(+
(+ (+ 1.0 (* 0.7715471019 (* x x))) (* 0.2909738639 t_0))
(* 0.0694555761 t_1))
(* 0.0140005442 t_2))
(* 0.0008327945 t_3))
(* (* 2.0 0.0001789971) (* t_3 (* x x)))))
x)))
double code(double x) {
double t_0 = (x * x) * (x * x);
double t_1 = t_0 * (x * x);
double t_2 = t_1 * (x * x);
double t_3 = t_2 * (x * x);
return ((((((1.0 + (0.1049934947 * (x * x))) + (0.0424060604 * t_0)) + (0.0072644182 * t_1)) + (0.0005064034 * t_2)) + (0.0001789971 * t_3)) / ((((((1.0 + (0.7715471019 * (x * x))) + (0.2909738639 * t_0)) + (0.0694555761 * t_1)) + (0.0140005442 * t_2)) + (0.0008327945 * t_3)) + ((2.0 * 0.0001789971) * (t_3 * (x * x))))) * x;
}
real(8) function code(x)
real(8), intent (in) :: x
real(8) :: t_0
real(8) :: t_1
real(8) :: t_2
real(8) :: t_3
t_0 = (x * x) * (x * x)
t_1 = t_0 * (x * x)
t_2 = t_1 * (x * x)
t_3 = t_2 * (x * x)
code = ((((((1.0d0 + (0.1049934947d0 * (x * x))) + (0.0424060604d0 * t_0)) + (0.0072644182d0 * t_1)) + (0.0005064034d0 * t_2)) + (0.0001789971d0 * t_3)) / ((((((1.0d0 + (0.7715471019d0 * (x * x))) + (0.2909738639d0 * t_0)) + (0.0694555761d0 * t_1)) + (0.0140005442d0 * t_2)) + (0.0008327945d0 * t_3)) + ((2.0d0 * 0.0001789971d0) * (t_3 * (x * x))))) * x
end function
public static double code(double x) {
double t_0 = (x * x) * (x * x);
double t_1 = t_0 * (x * x);
double t_2 = t_1 * (x * x);
double t_3 = t_2 * (x * x);
return ((((((1.0 + (0.1049934947 * (x * x))) + (0.0424060604 * t_0)) + (0.0072644182 * t_1)) + (0.0005064034 * t_2)) + (0.0001789971 * t_3)) / ((((((1.0 + (0.7715471019 * (x * x))) + (0.2909738639 * t_0)) + (0.0694555761 * t_1)) + (0.0140005442 * t_2)) + (0.0008327945 * t_3)) + ((2.0 * 0.0001789971) * (t_3 * (x * x))))) * x;
}
def code(x): t_0 = (x * x) * (x * x) t_1 = t_0 * (x * x) t_2 = t_1 * (x * x) t_3 = t_2 * (x * x) return ((((((1.0 + (0.1049934947 * (x * x))) + (0.0424060604 * t_0)) + (0.0072644182 * t_1)) + (0.0005064034 * t_2)) + (0.0001789971 * t_3)) / ((((((1.0 + (0.7715471019 * (x * x))) + (0.2909738639 * t_0)) + (0.0694555761 * t_1)) + (0.0140005442 * t_2)) + (0.0008327945 * t_3)) + ((2.0 * 0.0001789971) * (t_3 * (x * x))))) * x
function code(x) t_0 = Float64(Float64(x * x) * Float64(x * x)) t_1 = Float64(t_0 * Float64(x * x)) t_2 = Float64(t_1 * Float64(x * x)) t_3 = Float64(t_2 * Float64(x * x)) return Float64(Float64(Float64(Float64(Float64(Float64(Float64(1.0 + Float64(0.1049934947 * Float64(x * x))) + Float64(0.0424060604 * t_0)) + Float64(0.0072644182 * t_1)) + Float64(0.0005064034 * t_2)) + Float64(0.0001789971 * t_3)) / Float64(Float64(Float64(Float64(Float64(Float64(1.0 + Float64(0.7715471019 * Float64(x * x))) + Float64(0.2909738639 * t_0)) + Float64(0.0694555761 * t_1)) + Float64(0.0140005442 * t_2)) + Float64(0.0008327945 * t_3)) + Float64(Float64(2.0 * 0.0001789971) * Float64(t_3 * Float64(x * x))))) * x) end
function tmp = code(x) t_0 = (x * x) * (x * x); t_1 = t_0 * (x * x); t_2 = t_1 * (x * x); t_3 = t_2 * (x * x); tmp = ((((((1.0 + (0.1049934947 * (x * x))) + (0.0424060604 * t_0)) + (0.0072644182 * t_1)) + (0.0005064034 * t_2)) + (0.0001789971 * t_3)) / ((((((1.0 + (0.7715471019 * (x * x))) + (0.2909738639 * t_0)) + (0.0694555761 * t_1)) + (0.0140005442 * t_2)) + (0.0008327945 * t_3)) + ((2.0 * 0.0001789971) * (t_3 * (x * x))))) * x; end
code[x_] := Block[{t$95$0 = N[(N[(x * x), $MachinePrecision] * N[(x * x), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(t$95$0 * N[(x * x), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t$95$1 * N[(x * x), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(t$95$2 * N[(x * x), $MachinePrecision]), $MachinePrecision]}, N[(N[(N[(N[(N[(N[(N[(1.0 + N[(0.1049934947 * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(0.0424060604 * t$95$0), $MachinePrecision]), $MachinePrecision] + N[(0.0072644182 * t$95$1), $MachinePrecision]), $MachinePrecision] + N[(0.0005064034 * t$95$2), $MachinePrecision]), $MachinePrecision] + N[(0.0001789971 * t$95$3), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(N[(N[(N[(1.0 + N[(0.7715471019 * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(0.2909738639 * t$95$0), $MachinePrecision]), $MachinePrecision] + N[(0.0694555761 * t$95$1), $MachinePrecision]), $MachinePrecision] + N[(0.0140005442 * t$95$2), $MachinePrecision]), $MachinePrecision] + N[(0.0008327945 * t$95$3), $MachinePrecision]), $MachinePrecision] + N[(N[(2.0 * 0.0001789971), $MachinePrecision] * N[(t$95$3 * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * x), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(x \cdot x\right) \cdot \left(x \cdot x\right)\\
t_1 := t\_0 \cdot \left(x \cdot x\right)\\
t_2 := t\_1 \cdot \left(x \cdot x\right)\\
t_3 := t\_2 \cdot \left(x \cdot x\right)\\
\frac{\left(\left(\left(\left(1 + 0.1049934947 \cdot \left(x \cdot x\right)\right) + 0.0424060604 \cdot t\_0\right) + 0.0072644182 \cdot t\_1\right) + 0.0005064034 \cdot t\_2\right) + 0.0001789971 \cdot t\_3}{\left(\left(\left(\left(\left(1 + 0.7715471019 \cdot \left(x \cdot x\right)\right) + 0.2909738639 \cdot t\_0\right) + 0.0694555761 \cdot t\_1\right) + 0.0140005442 \cdot t\_2\right) + 0.0008327945 \cdot t\_3\right) + \left(2 \cdot 0.0001789971\right) \cdot \left(t\_3 \cdot \left(x \cdot x\right)\right)} \cdot x
\end{array}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 12 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x)
:precision binary64
(let* ((t_0 (* (* x x) (* x x)))
(t_1 (* t_0 (* x x)))
(t_2 (* t_1 (* x x)))
(t_3 (* t_2 (* x x))))
(*
(/
(+
(+
(+
(+ (+ 1.0 (* 0.1049934947 (* x x))) (* 0.0424060604 t_0))
(* 0.0072644182 t_1))
(* 0.0005064034 t_2))
(* 0.0001789971 t_3))
(+
(+
(+
(+
(+ (+ 1.0 (* 0.7715471019 (* x x))) (* 0.2909738639 t_0))
(* 0.0694555761 t_1))
(* 0.0140005442 t_2))
(* 0.0008327945 t_3))
(* (* 2.0 0.0001789971) (* t_3 (* x x)))))
x)))
double code(double x) {
double t_0 = (x * x) * (x * x);
double t_1 = t_0 * (x * x);
double t_2 = t_1 * (x * x);
double t_3 = t_2 * (x * x);
return ((((((1.0 + (0.1049934947 * (x * x))) + (0.0424060604 * t_0)) + (0.0072644182 * t_1)) + (0.0005064034 * t_2)) + (0.0001789971 * t_3)) / ((((((1.0 + (0.7715471019 * (x * x))) + (0.2909738639 * t_0)) + (0.0694555761 * t_1)) + (0.0140005442 * t_2)) + (0.0008327945 * t_3)) + ((2.0 * 0.0001789971) * (t_3 * (x * x))))) * x;
}
real(8) function code(x)
real(8), intent (in) :: x
real(8) :: t_0
real(8) :: t_1
real(8) :: t_2
real(8) :: t_3
t_0 = (x * x) * (x * x)
t_1 = t_0 * (x * x)
t_2 = t_1 * (x * x)
t_3 = t_2 * (x * x)
code = ((((((1.0d0 + (0.1049934947d0 * (x * x))) + (0.0424060604d0 * t_0)) + (0.0072644182d0 * t_1)) + (0.0005064034d0 * t_2)) + (0.0001789971d0 * t_3)) / ((((((1.0d0 + (0.7715471019d0 * (x * x))) + (0.2909738639d0 * t_0)) + (0.0694555761d0 * t_1)) + (0.0140005442d0 * t_2)) + (0.0008327945d0 * t_3)) + ((2.0d0 * 0.0001789971d0) * (t_3 * (x * x))))) * x
end function
public static double code(double x) {
double t_0 = (x * x) * (x * x);
double t_1 = t_0 * (x * x);
double t_2 = t_1 * (x * x);
double t_3 = t_2 * (x * x);
return ((((((1.0 + (0.1049934947 * (x * x))) + (0.0424060604 * t_0)) + (0.0072644182 * t_1)) + (0.0005064034 * t_2)) + (0.0001789971 * t_3)) / ((((((1.0 + (0.7715471019 * (x * x))) + (0.2909738639 * t_0)) + (0.0694555761 * t_1)) + (0.0140005442 * t_2)) + (0.0008327945 * t_3)) + ((2.0 * 0.0001789971) * (t_3 * (x * x))))) * x;
}
def code(x): t_0 = (x * x) * (x * x) t_1 = t_0 * (x * x) t_2 = t_1 * (x * x) t_3 = t_2 * (x * x) return ((((((1.0 + (0.1049934947 * (x * x))) + (0.0424060604 * t_0)) + (0.0072644182 * t_1)) + (0.0005064034 * t_2)) + (0.0001789971 * t_3)) / ((((((1.0 + (0.7715471019 * (x * x))) + (0.2909738639 * t_0)) + (0.0694555761 * t_1)) + (0.0140005442 * t_2)) + (0.0008327945 * t_3)) + ((2.0 * 0.0001789971) * (t_3 * (x * x))))) * x
function code(x) t_0 = Float64(Float64(x * x) * Float64(x * x)) t_1 = Float64(t_0 * Float64(x * x)) t_2 = Float64(t_1 * Float64(x * x)) t_3 = Float64(t_2 * Float64(x * x)) return Float64(Float64(Float64(Float64(Float64(Float64(Float64(1.0 + Float64(0.1049934947 * Float64(x * x))) + Float64(0.0424060604 * t_0)) + Float64(0.0072644182 * t_1)) + Float64(0.0005064034 * t_2)) + Float64(0.0001789971 * t_3)) / Float64(Float64(Float64(Float64(Float64(Float64(1.0 + Float64(0.7715471019 * Float64(x * x))) + Float64(0.2909738639 * t_0)) + Float64(0.0694555761 * t_1)) + Float64(0.0140005442 * t_2)) + Float64(0.0008327945 * t_3)) + Float64(Float64(2.0 * 0.0001789971) * Float64(t_3 * Float64(x * x))))) * x) end
function tmp = code(x) t_0 = (x * x) * (x * x); t_1 = t_0 * (x * x); t_2 = t_1 * (x * x); t_3 = t_2 * (x * x); tmp = ((((((1.0 + (0.1049934947 * (x * x))) + (0.0424060604 * t_0)) + (0.0072644182 * t_1)) + (0.0005064034 * t_2)) + (0.0001789971 * t_3)) / ((((((1.0 + (0.7715471019 * (x * x))) + (0.2909738639 * t_0)) + (0.0694555761 * t_1)) + (0.0140005442 * t_2)) + (0.0008327945 * t_3)) + ((2.0 * 0.0001789971) * (t_3 * (x * x))))) * x; end
code[x_] := Block[{t$95$0 = N[(N[(x * x), $MachinePrecision] * N[(x * x), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(t$95$0 * N[(x * x), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t$95$1 * N[(x * x), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(t$95$2 * N[(x * x), $MachinePrecision]), $MachinePrecision]}, N[(N[(N[(N[(N[(N[(N[(1.0 + N[(0.1049934947 * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(0.0424060604 * t$95$0), $MachinePrecision]), $MachinePrecision] + N[(0.0072644182 * t$95$1), $MachinePrecision]), $MachinePrecision] + N[(0.0005064034 * t$95$2), $MachinePrecision]), $MachinePrecision] + N[(0.0001789971 * t$95$3), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(N[(N[(N[(1.0 + N[(0.7715471019 * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(0.2909738639 * t$95$0), $MachinePrecision]), $MachinePrecision] + N[(0.0694555761 * t$95$1), $MachinePrecision]), $MachinePrecision] + N[(0.0140005442 * t$95$2), $MachinePrecision]), $MachinePrecision] + N[(0.0008327945 * t$95$3), $MachinePrecision]), $MachinePrecision] + N[(N[(2.0 * 0.0001789971), $MachinePrecision] * N[(t$95$3 * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * x), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(x \cdot x\right) \cdot \left(x \cdot x\right)\\
t_1 := t\_0 \cdot \left(x \cdot x\right)\\
t_2 := t\_1 \cdot \left(x \cdot x\right)\\
t_3 := t\_2 \cdot \left(x \cdot x\right)\\
\frac{\left(\left(\left(\left(1 + 0.1049934947 \cdot \left(x \cdot x\right)\right) + 0.0424060604 \cdot t\_0\right) + 0.0072644182 \cdot t\_1\right) + 0.0005064034 \cdot t\_2\right) + 0.0001789971 \cdot t\_3}{\left(\left(\left(\left(\left(1 + 0.7715471019 \cdot \left(x \cdot x\right)\right) + 0.2909738639 \cdot t\_0\right) + 0.0694555761 \cdot t\_1\right) + 0.0140005442 \cdot t\_2\right) + 0.0008327945 \cdot t\_3\right) + \left(2 \cdot 0.0001789971\right) \cdot \left(t\_3 \cdot \left(x \cdot x\right)\right)} \cdot x
\end{array}
\end{array}
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(let* ((t_0
(fma
0.0005064034
(pow x_m 8.0)
(fma
0.0072644182
(pow x_m 6.0)
(fma
(pow x_m 4.0)
0.0424060604
(fma 0.1049934947 (* x_m x_m) 1.0))))))
(*
x_s
(if (<= x_m 1000000.0)
(/
(* (- (pow t_0 2.0) (* (pow x_m 20.0) 3.203996180841e-8)) x_m)
(*
(- t_0 (* 0.0001789971 (pow x_m 10.0)))
(fma
(pow x_m 12.0)
0.0003579942
(fma
0.0008327945
(pow x_m 10.0)
(fma
0.0140005442
(pow x_m 8.0)
(fma
0.0694555761
(pow x_m 6.0)
(fma
(pow x_m 4.0)
0.2909738639
(fma 0.7715471019 (* x_m x_m) 1.0))))))))
(/ 0.5 x_m)))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double t_0 = fma(0.0005064034, pow(x_m, 8.0), fma(0.0072644182, pow(x_m, 6.0), fma(pow(x_m, 4.0), 0.0424060604, fma(0.1049934947, (x_m * x_m), 1.0))));
double tmp;
if (x_m <= 1000000.0) {
tmp = ((pow(t_0, 2.0) - (pow(x_m, 20.0) * 3.203996180841e-8)) * x_m) / ((t_0 - (0.0001789971 * pow(x_m, 10.0))) * fma(pow(x_m, 12.0), 0.0003579942, fma(0.0008327945, pow(x_m, 10.0), fma(0.0140005442, pow(x_m, 8.0), fma(0.0694555761, pow(x_m, 6.0), fma(pow(x_m, 4.0), 0.2909738639, fma(0.7715471019, (x_m * x_m), 1.0)))))));
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) t_0 = fma(0.0005064034, (x_m ^ 8.0), fma(0.0072644182, (x_m ^ 6.0), fma((x_m ^ 4.0), 0.0424060604, fma(0.1049934947, Float64(x_m * x_m), 1.0)))) tmp = 0.0 if (x_m <= 1000000.0) tmp = Float64(Float64(Float64((t_0 ^ 2.0) - Float64((x_m ^ 20.0) * 3.203996180841e-8)) * x_m) / Float64(Float64(t_0 - Float64(0.0001789971 * (x_m ^ 10.0))) * fma((x_m ^ 12.0), 0.0003579942, fma(0.0008327945, (x_m ^ 10.0), fma(0.0140005442, (x_m ^ 8.0), fma(0.0694555761, (x_m ^ 6.0), fma((x_m ^ 4.0), 0.2909738639, fma(0.7715471019, Float64(x_m * x_m), 1.0)))))))); else tmp = Float64(0.5 / x_m); end return Float64(x_s * tmp) end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := Block[{t$95$0 = N[(0.0005064034 * N[Power[x$95$m, 8.0], $MachinePrecision] + N[(0.0072644182 * N[Power[x$95$m, 6.0], $MachinePrecision] + N[(N[Power[x$95$m, 4.0], $MachinePrecision] * 0.0424060604 + N[(0.1049934947 * N[(x$95$m * x$95$m), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, N[(x$95$s * If[LessEqual[x$95$m, 1000000.0], N[(N[(N[(N[Power[t$95$0, 2.0], $MachinePrecision] - N[(N[Power[x$95$m, 20.0], $MachinePrecision] * 3.203996180841e-8), $MachinePrecision]), $MachinePrecision] * x$95$m), $MachinePrecision] / N[(N[(t$95$0 - N[(0.0001789971 * N[Power[x$95$m, 10.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Power[x$95$m, 12.0], $MachinePrecision] * 0.0003579942 + N[(0.0008327945 * N[Power[x$95$m, 10.0], $MachinePrecision] + N[(0.0140005442 * N[Power[x$95$m, 8.0], $MachinePrecision] + N[(0.0694555761 * N[Power[x$95$m, 6.0], $MachinePrecision] + N[(N[Power[x$95$m, 4.0], $MachinePrecision] * 0.2909738639 + N[(0.7715471019 * N[(x$95$m * x$95$m), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(0.5 / x$95$m), $MachinePrecision]]), $MachinePrecision]]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
\begin{array}{l}
t_0 := \mathsf{fma}\left(0.0005064034, {x\_m}^{8}, \mathsf{fma}\left(0.0072644182, {x\_m}^{6}, \mathsf{fma}\left({x\_m}^{4}, 0.0424060604, \mathsf{fma}\left(0.1049934947, x\_m \cdot x\_m, 1\right)\right)\right)\right)\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 1000000:\\
\;\;\;\;\frac{\left({t\_0}^{2} - {x\_m}^{20} \cdot 3.203996180841 \cdot 10^{-8}\right) \cdot x\_m}{\left(t\_0 - 0.0001789971 \cdot {x\_m}^{10}\right) \cdot \mathsf{fma}\left({x\_m}^{12}, 0.0003579942, \mathsf{fma}\left(0.0008327945, {x\_m}^{10}, \mathsf{fma}\left(0.0140005442, {x\_m}^{8}, \mathsf{fma}\left(0.0694555761, {x\_m}^{6}, \mathsf{fma}\left({x\_m}^{4}, 0.2909738639, \mathsf{fma}\left(0.7715471019, x\_m \cdot x\_m, 1\right)\right)\right)\right)\right)\right)}\\
\mathbf{else}:\\
\;\;\;\;\frac{0.5}{x\_m}\\
\end{array}
\end{array}
\end{array}
if x < 1e6Initial program 66.6%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-*.f64N/A
lift-*.f64N/A
pow3N/A
lift-*.f64N/A
pow2N/A
lift-*.f64N/A
pow2N/A
pow-powN/A
pow-powN/A
lower-pow.f64N/A
metadata-evalN/A
metadata-eval66.6
Applied rewrites66.6%
lift-*.f64N/A
metadata-eval66.6
Applied rewrites66.6%
Applied rewrites66.1%
if 1e6 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64100.0
Applied rewrites100.0%
Final simplification76.1%
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(let* ((t_0 (* (* x_m x_m) (* x_m x_m)))
(t_1 (* t_0 (* x_m x_m)))
(t_2 (* t_1 (* x_m x_m)))
(t_3 (* t_2 (* x_m x_m))))
(*
x_s
(if (<= x_m 1000000.0)
(*
(/
(+
(* t_3 0.0001789971)
(+
(* t_2 0.0005064034)
(+
(* t_1 0.0072644182)
(- (* t_0 0.0424060604) (- -1.0 (* (* x_m x_m) 0.1049934947))))))
(+
(* 0.0003579942 (pow x_m 12.0))
(+
(* t_3 0.0008327945)
(+
(* t_2 0.0140005442)
(+
(* t_1 0.0694555761)
(- (* t_0 0.2909738639) (- -1.0 (* 0.7715471019 (* x_m x_m)))))))))
x_m)
(/ 0.5 x_m)))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double t_0 = (x_m * x_m) * (x_m * x_m);
double t_1 = t_0 * (x_m * x_m);
double t_2 = t_1 * (x_m * x_m);
double t_3 = t_2 * (x_m * x_m);
double tmp;
if (x_m <= 1000000.0) {
tmp = (((t_3 * 0.0001789971) + ((t_2 * 0.0005064034) + ((t_1 * 0.0072644182) + ((t_0 * 0.0424060604) - (-1.0 - ((x_m * x_m) * 0.1049934947)))))) / ((0.0003579942 * pow(x_m, 12.0)) + ((t_3 * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m;
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = abs(x)
x\_s = copysign(1.0d0, x)
real(8) function code(x_s, x_m)
real(8), intent (in) :: x_s
real(8), intent (in) :: x_m
real(8) :: t_0
real(8) :: t_1
real(8) :: t_2
real(8) :: t_3
real(8) :: tmp
t_0 = (x_m * x_m) * (x_m * x_m)
t_1 = t_0 * (x_m * x_m)
t_2 = t_1 * (x_m * x_m)
t_3 = t_2 * (x_m * x_m)
if (x_m <= 1000000.0d0) then
tmp = (((t_3 * 0.0001789971d0) + ((t_2 * 0.0005064034d0) + ((t_1 * 0.0072644182d0) + ((t_0 * 0.0424060604d0) - ((-1.0d0) - ((x_m * x_m) * 0.1049934947d0)))))) / ((0.0003579942d0 * (x_m ** 12.0d0)) + ((t_3 * 0.0008327945d0) + ((t_2 * 0.0140005442d0) + ((t_1 * 0.0694555761d0) + ((t_0 * 0.2909738639d0) - ((-1.0d0) - (0.7715471019d0 * (x_m * x_m))))))))) * x_m
else
tmp = 0.5d0 / x_m
end if
code = x_s * tmp
end function
x\_m = Math.abs(x);
x\_s = Math.copySign(1.0, x);
public static double code(double x_s, double x_m) {
double t_0 = (x_m * x_m) * (x_m * x_m);
double t_1 = t_0 * (x_m * x_m);
double t_2 = t_1 * (x_m * x_m);
double t_3 = t_2 * (x_m * x_m);
double tmp;
if (x_m <= 1000000.0) {
tmp = (((t_3 * 0.0001789971) + ((t_2 * 0.0005064034) + ((t_1 * 0.0072644182) + ((t_0 * 0.0424060604) - (-1.0 - ((x_m * x_m) * 0.1049934947)))))) / ((0.0003579942 * Math.pow(x_m, 12.0)) + ((t_3 * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m;
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = math.fabs(x) x\_s = math.copysign(1.0, x) def code(x_s, x_m): t_0 = (x_m * x_m) * (x_m * x_m) t_1 = t_0 * (x_m * x_m) t_2 = t_1 * (x_m * x_m) t_3 = t_2 * (x_m * x_m) tmp = 0 if x_m <= 1000000.0: tmp = (((t_3 * 0.0001789971) + ((t_2 * 0.0005064034) + ((t_1 * 0.0072644182) + ((t_0 * 0.0424060604) - (-1.0 - ((x_m * x_m) * 0.1049934947)))))) / ((0.0003579942 * math.pow(x_m, 12.0)) + ((t_3 * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m else: tmp = 0.5 / x_m return x_s * tmp
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) t_0 = Float64(Float64(x_m * x_m) * Float64(x_m * x_m)) t_1 = Float64(t_0 * Float64(x_m * x_m)) t_2 = Float64(t_1 * Float64(x_m * x_m)) t_3 = Float64(t_2 * Float64(x_m * x_m)) tmp = 0.0 if (x_m <= 1000000.0) tmp = Float64(Float64(Float64(Float64(t_3 * 0.0001789971) + Float64(Float64(t_2 * 0.0005064034) + Float64(Float64(t_1 * 0.0072644182) + Float64(Float64(t_0 * 0.0424060604) - Float64(-1.0 - Float64(Float64(x_m * x_m) * 0.1049934947)))))) / Float64(Float64(0.0003579942 * (x_m ^ 12.0)) + Float64(Float64(t_3 * 0.0008327945) + Float64(Float64(t_2 * 0.0140005442) + Float64(Float64(t_1 * 0.0694555761) + Float64(Float64(t_0 * 0.2909738639) - Float64(-1.0 - Float64(0.7715471019 * Float64(x_m * x_m))))))))) * x_m); else tmp = Float64(0.5 / x_m); end return Float64(x_s * tmp) end
x\_m = abs(x); x\_s = sign(x) * abs(1.0); function tmp_2 = code(x_s, x_m) t_0 = (x_m * x_m) * (x_m * x_m); t_1 = t_0 * (x_m * x_m); t_2 = t_1 * (x_m * x_m); t_3 = t_2 * (x_m * x_m); tmp = 0.0; if (x_m <= 1000000.0) tmp = (((t_3 * 0.0001789971) + ((t_2 * 0.0005064034) + ((t_1 * 0.0072644182) + ((t_0 * 0.0424060604) - (-1.0 - ((x_m * x_m) * 0.1049934947)))))) / ((0.0003579942 * (x_m ^ 12.0)) + ((t_3 * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m; else tmp = 0.5 / x_m; end tmp_2 = x_s * tmp; end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := Block[{t$95$0 = N[(N[(x$95$m * x$95$m), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(t$95$0 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t$95$1 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(t$95$2 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, N[(x$95$s * If[LessEqual[x$95$m, 1000000.0], N[(N[(N[(N[(t$95$3 * 0.0001789971), $MachinePrecision] + N[(N[(t$95$2 * 0.0005064034), $MachinePrecision] + N[(N[(t$95$1 * 0.0072644182), $MachinePrecision] + N[(N[(t$95$0 * 0.0424060604), $MachinePrecision] - N[(-1.0 - N[(N[(x$95$m * x$95$m), $MachinePrecision] * 0.1049934947), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(0.0003579942 * N[Power[x$95$m, 12.0], $MachinePrecision]), $MachinePrecision] + N[(N[(t$95$3 * 0.0008327945), $MachinePrecision] + N[(N[(t$95$2 * 0.0140005442), $MachinePrecision] + N[(N[(t$95$1 * 0.0694555761), $MachinePrecision] + N[(N[(t$95$0 * 0.2909738639), $MachinePrecision] - N[(-1.0 - N[(0.7715471019 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * x$95$m), $MachinePrecision], N[(0.5 / x$95$m), $MachinePrecision]]), $MachinePrecision]]]]]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
\begin{array}{l}
t_0 := \left(x\_m \cdot x\_m\right) \cdot \left(x\_m \cdot x\_m\right)\\
t_1 := t\_0 \cdot \left(x\_m \cdot x\_m\right)\\
t_2 := t\_1 \cdot \left(x\_m \cdot x\_m\right)\\
t_3 := t\_2 \cdot \left(x\_m \cdot x\_m\right)\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 1000000:\\
\;\;\;\;\frac{t\_3 \cdot 0.0001789971 + \left(t\_2 \cdot 0.0005064034 + \left(t\_1 \cdot 0.0072644182 + \left(t\_0 \cdot 0.0424060604 - \left(-1 - \left(x\_m \cdot x\_m\right) \cdot 0.1049934947\right)\right)\right)\right)}{0.0003579942 \cdot {x\_m}^{12} + \left(t\_3 \cdot 0.0008327945 + \left(t\_2 \cdot 0.0140005442 + \left(t\_1 \cdot 0.0694555761 + \left(t\_0 \cdot 0.2909738639 - \left(-1 - 0.7715471019 \cdot \left(x\_m \cdot x\_m\right)\right)\right)\right)\right)\right)} \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{0.5}{x\_m}\\
\end{array}
\end{array}
\end{array}
if x < 1e6Initial program 66.6%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-*.f64N/A
lift-*.f64N/A
pow3N/A
lift-*.f64N/A
pow2N/A
lift-*.f64N/A
pow2N/A
pow-powN/A
pow-powN/A
lower-pow.f64N/A
metadata-evalN/A
metadata-eval66.6
Applied rewrites66.6%
lift-*.f64N/A
metadata-eval66.6
Applied rewrites66.6%
if 1e6 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64100.0
Applied rewrites100.0%
Final simplification76.5%
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(let* ((t_0 (* (* x_m x_m) (* x_m x_m)))
(t_1 (* t_0 (* x_m x_m)))
(t_2 (* t_1 (* x_m x_m)))
(t_3 (* t_2 (* x_m x_m))))
(*
x_s
(if (<= x_m 1000000.0)
(*
(/
(+
(* t_3 0.0001789971)
(+
(* t_2 0.0005064034)
(+
(* t_1 0.0072644182)
(- (* t_0 0.0424060604) (- -1.0 (* (* x_m x_m) 0.1049934947))))))
(+
(* (* t_3 (* x_m x_m)) (* 0.0001789971 2.0))
(+
(* t_3 0.0008327945)
(+
(* t_2 0.0140005442)
(+
(* t_1 0.0694555761)
(- (* t_0 0.2909738639) (- -1.0 (* 0.7715471019 (* x_m x_m)))))))))
x_m)
(/ 0.5 x_m)))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double t_0 = (x_m * x_m) * (x_m * x_m);
double t_1 = t_0 * (x_m * x_m);
double t_2 = t_1 * (x_m * x_m);
double t_3 = t_2 * (x_m * x_m);
double tmp;
if (x_m <= 1000000.0) {
tmp = (((t_3 * 0.0001789971) + ((t_2 * 0.0005064034) + ((t_1 * 0.0072644182) + ((t_0 * 0.0424060604) - (-1.0 - ((x_m * x_m) * 0.1049934947)))))) / (((t_3 * (x_m * x_m)) * (0.0001789971 * 2.0)) + ((t_3 * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m;
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = abs(x)
x\_s = copysign(1.0d0, x)
real(8) function code(x_s, x_m)
real(8), intent (in) :: x_s
real(8), intent (in) :: x_m
real(8) :: t_0
real(8) :: t_1
real(8) :: t_2
real(8) :: t_3
real(8) :: tmp
t_0 = (x_m * x_m) * (x_m * x_m)
t_1 = t_0 * (x_m * x_m)
t_2 = t_1 * (x_m * x_m)
t_3 = t_2 * (x_m * x_m)
if (x_m <= 1000000.0d0) then
tmp = (((t_3 * 0.0001789971d0) + ((t_2 * 0.0005064034d0) + ((t_1 * 0.0072644182d0) + ((t_0 * 0.0424060604d0) - ((-1.0d0) - ((x_m * x_m) * 0.1049934947d0)))))) / (((t_3 * (x_m * x_m)) * (0.0001789971d0 * 2.0d0)) + ((t_3 * 0.0008327945d0) + ((t_2 * 0.0140005442d0) + ((t_1 * 0.0694555761d0) + ((t_0 * 0.2909738639d0) - ((-1.0d0) - (0.7715471019d0 * (x_m * x_m))))))))) * x_m
else
tmp = 0.5d0 / x_m
end if
code = x_s * tmp
end function
x\_m = Math.abs(x);
x\_s = Math.copySign(1.0, x);
public static double code(double x_s, double x_m) {
double t_0 = (x_m * x_m) * (x_m * x_m);
double t_1 = t_0 * (x_m * x_m);
double t_2 = t_1 * (x_m * x_m);
double t_3 = t_2 * (x_m * x_m);
double tmp;
if (x_m <= 1000000.0) {
tmp = (((t_3 * 0.0001789971) + ((t_2 * 0.0005064034) + ((t_1 * 0.0072644182) + ((t_0 * 0.0424060604) - (-1.0 - ((x_m * x_m) * 0.1049934947)))))) / (((t_3 * (x_m * x_m)) * (0.0001789971 * 2.0)) + ((t_3 * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m;
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = math.fabs(x) x\_s = math.copysign(1.0, x) def code(x_s, x_m): t_0 = (x_m * x_m) * (x_m * x_m) t_1 = t_0 * (x_m * x_m) t_2 = t_1 * (x_m * x_m) t_3 = t_2 * (x_m * x_m) tmp = 0 if x_m <= 1000000.0: tmp = (((t_3 * 0.0001789971) + ((t_2 * 0.0005064034) + ((t_1 * 0.0072644182) + ((t_0 * 0.0424060604) - (-1.0 - ((x_m * x_m) * 0.1049934947)))))) / (((t_3 * (x_m * x_m)) * (0.0001789971 * 2.0)) + ((t_3 * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m else: tmp = 0.5 / x_m return x_s * tmp
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) t_0 = Float64(Float64(x_m * x_m) * Float64(x_m * x_m)) t_1 = Float64(t_0 * Float64(x_m * x_m)) t_2 = Float64(t_1 * Float64(x_m * x_m)) t_3 = Float64(t_2 * Float64(x_m * x_m)) tmp = 0.0 if (x_m <= 1000000.0) tmp = Float64(Float64(Float64(Float64(t_3 * 0.0001789971) + Float64(Float64(t_2 * 0.0005064034) + Float64(Float64(t_1 * 0.0072644182) + Float64(Float64(t_0 * 0.0424060604) - Float64(-1.0 - Float64(Float64(x_m * x_m) * 0.1049934947)))))) / Float64(Float64(Float64(t_3 * Float64(x_m * x_m)) * Float64(0.0001789971 * 2.0)) + Float64(Float64(t_3 * 0.0008327945) + Float64(Float64(t_2 * 0.0140005442) + Float64(Float64(t_1 * 0.0694555761) + Float64(Float64(t_0 * 0.2909738639) - Float64(-1.0 - Float64(0.7715471019 * Float64(x_m * x_m))))))))) * x_m); else tmp = Float64(0.5 / x_m); end return Float64(x_s * tmp) end
x\_m = abs(x); x\_s = sign(x) * abs(1.0); function tmp_2 = code(x_s, x_m) t_0 = (x_m * x_m) * (x_m * x_m); t_1 = t_0 * (x_m * x_m); t_2 = t_1 * (x_m * x_m); t_3 = t_2 * (x_m * x_m); tmp = 0.0; if (x_m <= 1000000.0) tmp = (((t_3 * 0.0001789971) + ((t_2 * 0.0005064034) + ((t_1 * 0.0072644182) + ((t_0 * 0.0424060604) - (-1.0 - ((x_m * x_m) * 0.1049934947)))))) / (((t_3 * (x_m * x_m)) * (0.0001789971 * 2.0)) + ((t_3 * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m; else tmp = 0.5 / x_m; end tmp_2 = x_s * tmp; end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := Block[{t$95$0 = N[(N[(x$95$m * x$95$m), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(t$95$0 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t$95$1 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(t$95$2 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, N[(x$95$s * If[LessEqual[x$95$m, 1000000.0], N[(N[(N[(N[(t$95$3 * 0.0001789971), $MachinePrecision] + N[(N[(t$95$2 * 0.0005064034), $MachinePrecision] + N[(N[(t$95$1 * 0.0072644182), $MachinePrecision] + N[(N[(t$95$0 * 0.0424060604), $MachinePrecision] - N[(-1.0 - N[(N[(x$95$m * x$95$m), $MachinePrecision] * 0.1049934947), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(t$95$3 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] * N[(0.0001789971 * 2.0), $MachinePrecision]), $MachinePrecision] + N[(N[(t$95$3 * 0.0008327945), $MachinePrecision] + N[(N[(t$95$2 * 0.0140005442), $MachinePrecision] + N[(N[(t$95$1 * 0.0694555761), $MachinePrecision] + N[(N[(t$95$0 * 0.2909738639), $MachinePrecision] - N[(-1.0 - N[(0.7715471019 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * x$95$m), $MachinePrecision], N[(0.5 / x$95$m), $MachinePrecision]]), $MachinePrecision]]]]]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
\begin{array}{l}
t_0 := \left(x\_m \cdot x\_m\right) \cdot \left(x\_m \cdot x\_m\right)\\
t_1 := t\_0 \cdot \left(x\_m \cdot x\_m\right)\\
t_2 := t\_1 \cdot \left(x\_m \cdot x\_m\right)\\
t_3 := t\_2 \cdot \left(x\_m \cdot x\_m\right)\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 1000000:\\
\;\;\;\;\frac{t\_3 \cdot 0.0001789971 + \left(t\_2 \cdot 0.0005064034 + \left(t\_1 \cdot 0.0072644182 + \left(t\_0 \cdot 0.0424060604 - \left(-1 - \left(x\_m \cdot x\_m\right) \cdot 0.1049934947\right)\right)\right)\right)}{\left(t\_3 \cdot \left(x\_m \cdot x\_m\right)\right) \cdot \left(0.0001789971 \cdot 2\right) + \left(t\_3 \cdot 0.0008327945 + \left(t\_2 \cdot 0.0140005442 + \left(t\_1 \cdot 0.0694555761 + \left(t\_0 \cdot 0.2909738639 - \left(-1 - 0.7715471019 \cdot \left(x\_m \cdot x\_m\right)\right)\right)\right)\right)\right)} \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{0.5}{x\_m}\\
\end{array}
\end{array}
\end{array}
if x < 1e6Initial program 66.6%
if 1e6 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64100.0
Applied rewrites100.0%
Final simplification76.5%
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(let* ((t_0 (* (* x_m x_m) (* x_m x_m)))
(t_1 (* t_0 (* x_m x_m)))
(t_2 (* t_1 (* x_m x_m))))
(*
x_s
(if (<= x_m 2.1)
(*
(/
(fma
(fma
(fma (* x_m x_m) 0.0072644182 0.0424060604)
(* x_m x_m)
0.1049934947)
(* x_m x_m)
1.0)
(+
(* 0.0003579942 (pow x_m 12.0))
(+
(* (* t_2 (* x_m x_m)) 0.0008327945)
(+
(* t_2 0.0140005442)
(+
(* t_1 0.0694555761)
(- (* t_0 0.2909738639) (- -1.0 (* 0.7715471019 (* x_m x_m)))))))))
x_m)
(/
(-
(/
(- (/ 11.259630434457211 (* x_m x_m)) -0.15298196345929074)
(pow x_m 4.0))
(- -0.5 (/ 0.2514179000665374 (* x_m x_m))))
x_m)))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double t_0 = (x_m * x_m) * (x_m * x_m);
double t_1 = t_0 * (x_m * x_m);
double t_2 = t_1 * (x_m * x_m);
double tmp;
if (x_m <= 2.1) {
tmp = (fma(fma(fma((x_m * x_m), 0.0072644182, 0.0424060604), (x_m * x_m), 0.1049934947), (x_m * x_m), 1.0) / ((0.0003579942 * pow(x_m, 12.0)) + (((t_2 * (x_m * x_m)) * 0.0008327945) + ((t_2 * 0.0140005442) + ((t_1 * 0.0694555761) + ((t_0 * 0.2909738639) - (-1.0 - (0.7715471019 * (x_m * x_m))))))))) * x_m;
} else {
tmp = ((((11.259630434457211 / (x_m * x_m)) - -0.15298196345929074) / pow(x_m, 4.0)) - (-0.5 - (0.2514179000665374 / (x_m * x_m)))) / x_m;
}
return x_s * tmp;
}
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) t_0 = Float64(Float64(x_m * x_m) * Float64(x_m * x_m)) t_1 = Float64(t_0 * Float64(x_m * x_m)) t_2 = Float64(t_1 * Float64(x_m * x_m)) tmp = 0.0 if (x_m <= 2.1) tmp = Float64(Float64(fma(fma(fma(Float64(x_m * x_m), 0.0072644182, 0.0424060604), Float64(x_m * x_m), 0.1049934947), Float64(x_m * x_m), 1.0) / Float64(Float64(0.0003579942 * (x_m ^ 12.0)) + Float64(Float64(Float64(t_2 * Float64(x_m * x_m)) * 0.0008327945) + Float64(Float64(t_2 * 0.0140005442) + Float64(Float64(t_1 * 0.0694555761) + Float64(Float64(t_0 * 0.2909738639) - Float64(-1.0 - Float64(0.7715471019 * Float64(x_m * x_m))))))))) * x_m); else tmp = Float64(Float64(Float64(Float64(Float64(11.259630434457211 / Float64(x_m * x_m)) - -0.15298196345929074) / (x_m ^ 4.0)) - Float64(-0.5 - Float64(0.2514179000665374 / Float64(x_m * x_m)))) / x_m); end return Float64(x_s * tmp) end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := Block[{t$95$0 = N[(N[(x$95$m * x$95$m), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(t$95$0 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(t$95$1 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]}, N[(x$95$s * If[LessEqual[x$95$m, 2.1], N[(N[(N[(N[(N[(N[(x$95$m * x$95$m), $MachinePrecision] * 0.0072644182 + 0.0424060604), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + 0.1049934947), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + 1.0), $MachinePrecision] / N[(N[(0.0003579942 * N[Power[x$95$m, 12.0], $MachinePrecision]), $MachinePrecision] + N[(N[(N[(t$95$2 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] * 0.0008327945), $MachinePrecision] + N[(N[(t$95$2 * 0.0140005442), $MachinePrecision] + N[(N[(t$95$1 * 0.0694555761), $MachinePrecision] + N[(N[(t$95$0 * 0.2909738639), $MachinePrecision] - N[(-1.0 - N[(0.7715471019 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * x$95$m), $MachinePrecision], N[(N[(N[(N[(N[(11.259630434457211 / N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] - -0.15298196345929074), $MachinePrecision] / N[Power[x$95$m, 4.0], $MachinePrecision]), $MachinePrecision] - N[(-0.5 - N[(0.2514179000665374 / N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / x$95$m), $MachinePrecision]]), $MachinePrecision]]]]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
\begin{array}{l}
t_0 := \left(x\_m \cdot x\_m\right) \cdot \left(x\_m \cdot x\_m\right)\\
t_1 := t\_0 \cdot \left(x\_m \cdot x\_m\right)\\
t_2 := t\_1 \cdot \left(x\_m \cdot x\_m\right)\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 2.1:\\
\;\;\;\;\frac{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x\_m \cdot x\_m, 0.0072644182, 0.0424060604\right), x\_m \cdot x\_m, 0.1049934947\right), x\_m \cdot x\_m, 1\right)}{0.0003579942 \cdot {x\_m}^{12} + \left(\left(t\_2 \cdot \left(x\_m \cdot x\_m\right)\right) \cdot 0.0008327945 + \left(t\_2 \cdot 0.0140005442 + \left(t\_1 \cdot 0.0694555761 + \left(t\_0 \cdot 0.2909738639 - \left(-1 - 0.7715471019 \cdot \left(x\_m \cdot x\_m\right)\right)\right)\right)\right)\right)} \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{\frac{11.259630434457211}{x\_m \cdot x\_m} - -0.15298196345929074}{{x\_m}^{4}} - \left(-0.5 - \frac{0.2514179000665374}{x\_m \cdot x\_m}\right)}{x\_m}\\
\end{array}
\end{array}
\end{array}
if x < 2.10000000000000009Initial program 66.6%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lift-*.f64N/A
lift-*.f64N/A
pow3N/A
lift-*.f64N/A
pow2N/A
lift-*.f64N/A
pow2N/A
pow-powN/A
pow-powN/A
lower-pow.f64N/A
metadata-evalN/A
metadata-eval66.6
Applied rewrites66.6%
lift-*.f64N/A
metadata-eval66.6
Applied rewrites66.6%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f6465.2
Applied rewrites65.2%
if 2.10000000000000009 < x Initial program 6.6%
Taylor expanded in x around -inf
mul-1-negN/A
distribute-frac-negN/A
sub-negN/A
mul-1-negN/A
distribute-neg-outN/A
remove-double-negN/A
lower-/.f64N/A
Applied rewrites100.0%
Final simplification75.5%
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(*
x_s
(if (<= x_m 1.4)
(*
(fma
(fma
(fma -0.0732490286039007 (* x_m x_m) 0.265709700396151)
(* x_m x_m)
-0.6665536072)
(* x_m x_m)
1.0)
x_m)
(/
(-
(/
(- (/ 11.259630434457211 (* x_m x_m)) -0.15298196345929074)
(pow x_m 4.0))
(- -0.5 (/ 0.2514179000665374 (* x_m x_m))))
x_m))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double tmp;
if (x_m <= 1.4) {
tmp = fma(fma(fma(-0.0732490286039007, (x_m * x_m), 0.265709700396151), (x_m * x_m), -0.6665536072), (x_m * x_m), 1.0) * x_m;
} else {
tmp = ((((11.259630434457211 / (x_m * x_m)) - -0.15298196345929074) / pow(x_m, 4.0)) - (-0.5 - (0.2514179000665374 / (x_m * x_m)))) / x_m;
}
return x_s * tmp;
}
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) tmp = 0.0 if (x_m <= 1.4) tmp = Float64(fma(fma(fma(-0.0732490286039007, Float64(x_m * x_m), 0.265709700396151), Float64(x_m * x_m), -0.6665536072), Float64(x_m * x_m), 1.0) * x_m); else tmp = Float64(Float64(Float64(Float64(Float64(11.259630434457211 / Float64(x_m * x_m)) - -0.15298196345929074) / (x_m ^ 4.0)) - Float64(-0.5 - Float64(0.2514179000665374 / Float64(x_m * x_m)))) / x_m); end return Float64(x_s * tmp) end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := N[(x$95$s * If[LessEqual[x$95$m, 1.4], N[(N[(N[(N[(-0.0732490286039007 * N[(x$95$m * x$95$m), $MachinePrecision] + 0.265709700396151), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + -0.6665536072), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + 1.0), $MachinePrecision] * x$95$m), $MachinePrecision], N[(N[(N[(N[(N[(11.259630434457211 / N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] - -0.15298196345929074), $MachinePrecision] / N[Power[x$95$m, 4.0], $MachinePrecision]), $MachinePrecision] - N[(-0.5 - N[(0.2514179000665374 / N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / x$95$m), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 1.4:\\
\;\;\;\;\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(-0.0732490286039007, x\_m \cdot x\_m, 0.265709700396151\right), x\_m \cdot x\_m, -0.6665536072\right), x\_m \cdot x\_m, 1\right) \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{\frac{11.259630434457211}{x\_m \cdot x\_m} - -0.15298196345929074}{{x\_m}^{4}} - \left(-0.5 - \frac{0.2514179000665374}{x\_m \cdot x\_m}\right)}{x\_m}\\
\end{array}
\end{array}
if x < 1.3999999999999999Initial program 66.6%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
sub-negN/A
*-commutativeN/A
metadata-evalN/A
lower-fma.f64N/A
+-commutativeN/A
lower-fma.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f6465.3
Applied rewrites65.3%
if 1.3999999999999999 < x Initial program 6.6%
Taylor expanded in x around -inf
mul-1-negN/A
distribute-frac-negN/A
sub-negN/A
mul-1-negN/A
distribute-neg-outN/A
remove-double-negN/A
lower-/.f64N/A
Applied rewrites100.0%
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(*
x_s
(if (<= x_m 1.15)
(*
(fma
(fma
(fma -0.0732490286039007 (* x_m x_m) 0.265709700396151)
(* x_m x_m)
-0.6665536072)
(* x_m x_m)
1.0)
x_m)
(/ (/ (fma 0.5 x_m (/ 0.2514179000665374 x_m)) x_m) x_m))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double tmp;
if (x_m <= 1.15) {
tmp = fma(fma(fma(-0.0732490286039007, (x_m * x_m), 0.265709700396151), (x_m * x_m), -0.6665536072), (x_m * x_m), 1.0) * x_m;
} else {
tmp = (fma(0.5, x_m, (0.2514179000665374 / x_m)) / x_m) / x_m;
}
return x_s * tmp;
}
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) tmp = 0.0 if (x_m <= 1.15) tmp = Float64(fma(fma(fma(-0.0732490286039007, Float64(x_m * x_m), 0.265709700396151), Float64(x_m * x_m), -0.6665536072), Float64(x_m * x_m), 1.0) * x_m); else tmp = Float64(Float64(fma(0.5, x_m, Float64(0.2514179000665374 / x_m)) / x_m) / x_m); end return Float64(x_s * tmp) end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := N[(x$95$s * If[LessEqual[x$95$m, 1.15], N[(N[(N[(N[(-0.0732490286039007 * N[(x$95$m * x$95$m), $MachinePrecision] + 0.265709700396151), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + -0.6665536072), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + 1.0), $MachinePrecision] * x$95$m), $MachinePrecision], N[(N[(N[(0.5 * x$95$m + N[(0.2514179000665374 / x$95$m), $MachinePrecision]), $MachinePrecision] / x$95$m), $MachinePrecision] / x$95$m), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 1.15:\\
\;\;\;\;\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(-0.0732490286039007, x\_m \cdot x\_m, 0.265709700396151\right), x\_m \cdot x\_m, -0.6665536072\right), x\_m \cdot x\_m, 1\right) \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{\mathsf{fma}\left(0.5, x\_m, \frac{0.2514179000665374}{x\_m}\right)}{x\_m}}{x\_m}\\
\end{array}
\end{array}
if x < 1.1499999999999999Initial program 66.6%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
sub-negN/A
*-commutativeN/A
metadata-evalN/A
lower-fma.f64N/A
+-commutativeN/A
lower-fma.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f6465.3
Applied rewrites65.3%
if 1.1499999999999999 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64N/A
+-commutativeN/A
metadata-evalN/A
metadata-evalN/A
sub-negN/A
lower--.f64N/A
associate-*r/N/A
metadata-evalN/A
lower-/.f64N/A
unpow2N/A
lower-*.f64N/A
metadata-eval100.0
Applied rewrites100.0%
Taylor expanded in x around 0
Applied rewrites49.6%
Taylor expanded in x around inf
Applied rewrites100.0%
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(*
x_s
(if (<= x_m 1.15)
(*
(fma
(fma
(fma -0.0732490286039007 (* x_m x_m) 0.265709700396151)
(* x_m x_m)
-0.6665536072)
(* x_m x_m)
1.0)
x_m)
(/ (- (/ 0.2514179000665374 (* x_m x_m)) -0.5) x_m))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double tmp;
if (x_m <= 1.15) {
tmp = fma(fma(fma(-0.0732490286039007, (x_m * x_m), 0.265709700396151), (x_m * x_m), -0.6665536072), (x_m * x_m), 1.0) * x_m;
} else {
tmp = ((0.2514179000665374 / (x_m * x_m)) - -0.5) / x_m;
}
return x_s * tmp;
}
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) tmp = 0.0 if (x_m <= 1.15) tmp = Float64(fma(fma(fma(-0.0732490286039007, Float64(x_m * x_m), 0.265709700396151), Float64(x_m * x_m), -0.6665536072), Float64(x_m * x_m), 1.0) * x_m); else tmp = Float64(Float64(Float64(0.2514179000665374 / Float64(x_m * x_m)) - -0.5) / x_m); end return Float64(x_s * tmp) end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := N[(x$95$s * If[LessEqual[x$95$m, 1.15], N[(N[(N[(N[(-0.0732490286039007 * N[(x$95$m * x$95$m), $MachinePrecision] + 0.265709700396151), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + -0.6665536072), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + 1.0), $MachinePrecision] * x$95$m), $MachinePrecision], N[(N[(N[(0.2514179000665374 / N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] - -0.5), $MachinePrecision] / x$95$m), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 1.15:\\
\;\;\;\;\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(-0.0732490286039007, x\_m \cdot x\_m, 0.265709700396151\right), x\_m \cdot x\_m, -0.6665536072\right), x\_m \cdot x\_m, 1\right) \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{0.2514179000665374}{x\_m \cdot x\_m} - -0.5}{x\_m}\\
\end{array}
\end{array}
if x < 1.1499999999999999Initial program 66.6%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
sub-negN/A
*-commutativeN/A
metadata-evalN/A
lower-fma.f64N/A
+-commutativeN/A
lower-fma.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f6465.3
Applied rewrites65.3%
if 1.1499999999999999 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64N/A
+-commutativeN/A
metadata-evalN/A
metadata-evalN/A
sub-negN/A
lower--.f64N/A
associate-*r/N/A
metadata-evalN/A
lower-/.f64N/A
unpow2N/A
lower-*.f64N/A
metadata-eval100.0
Applied rewrites100.0%
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(*
x_s
(if (<= x_m 1.1)
(*
(fma (fma 0.265709700396151 (* x_m x_m) -0.6665536072) (* x_m x_m) 1.0)
x_m)
(/ (- (/ 0.2514179000665374 (* x_m x_m)) -0.5) x_m))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double tmp;
if (x_m <= 1.1) {
tmp = fma(fma(0.265709700396151, (x_m * x_m), -0.6665536072), (x_m * x_m), 1.0) * x_m;
} else {
tmp = ((0.2514179000665374 / (x_m * x_m)) - -0.5) / x_m;
}
return x_s * tmp;
}
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) tmp = 0.0 if (x_m <= 1.1) tmp = Float64(fma(fma(0.265709700396151, Float64(x_m * x_m), -0.6665536072), Float64(x_m * x_m), 1.0) * x_m); else tmp = Float64(Float64(Float64(0.2514179000665374 / Float64(x_m * x_m)) - -0.5) / x_m); end return Float64(x_s * tmp) end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := N[(x$95$s * If[LessEqual[x$95$m, 1.1], N[(N[(N[(0.265709700396151 * N[(x$95$m * x$95$m), $MachinePrecision] + -0.6665536072), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + 1.0), $MachinePrecision] * x$95$m), $MachinePrecision], N[(N[(N[(0.2514179000665374 / N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] - -0.5), $MachinePrecision] / x$95$m), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 1.1:\\
\;\;\;\;\mathsf{fma}\left(\mathsf{fma}\left(0.265709700396151, x\_m \cdot x\_m, -0.6665536072\right), x\_m \cdot x\_m, 1\right) \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{0.2514179000665374}{x\_m \cdot x\_m} - -0.5}{x\_m}\\
\end{array}
\end{array}
if x < 1.1000000000000001Initial program 66.6%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
sub-negN/A
metadata-evalN/A
lower-fma.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f6465.6
Applied rewrites65.6%
if 1.1000000000000001 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64N/A
+-commutativeN/A
metadata-evalN/A
metadata-evalN/A
sub-negN/A
lower--.f64N/A
associate-*r/N/A
metadata-evalN/A
lower-/.f64N/A
unpow2N/A
lower-*.f64N/A
metadata-eval100.0
Applied rewrites100.0%
x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m)
:precision binary64
(*
x_s
(if (<= x_m 0.9)
(*
(fma (fma 0.265709700396151 (* x_m x_m) -0.6665536072) (* x_m x_m) 1.0)
x_m)
(/ 0.5 x_m))))x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double tmp;
if (x_m <= 0.9) {
tmp = fma(fma(0.265709700396151, (x_m * x_m), -0.6665536072), (x_m * x_m), 1.0) * x_m;
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) tmp = 0.0 if (x_m <= 0.9) tmp = Float64(fma(fma(0.265709700396151, Float64(x_m * x_m), -0.6665536072), Float64(x_m * x_m), 1.0) * x_m); else tmp = Float64(0.5 / x_m); end return Float64(x_s * tmp) end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := N[(x$95$s * If[LessEqual[x$95$m, 0.9], N[(N[(N[(0.265709700396151 * N[(x$95$m * x$95$m), $MachinePrecision] + -0.6665536072), $MachinePrecision] * N[(x$95$m * x$95$m), $MachinePrecision] + 1.0), $MachinePrecision] * x$95$m), $MachinePrecision], N[(0.5 / x$95$m), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 0.9:\\
\;\;\;\;\mathsf{fma}\left(\mathsf{fma}\left(0.265709700396151, x\_m \cdot x\_m, -0.6665536072\right), x\_m \cdot x\_m, 1\right) \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{0.5}{x\_m}\\
\end{array}
\end{array}
if x < 0.900000000000000022Initial program 66.6%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
sub-negN/A
metadata-evalN/A
lower-fma.f64N/A
unpow2N/A
lower-*.f64N/A
unpow2N/A
lower-*.f6465.6
Applied rewrites65.6%
if 0.900000000000000022 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64100.0
Applied rewrites100.0%
x\_m = (fabs.f64 x) x\_s = (copysign.f64 #s(literal 1 binary64) x) (FPCore (x_s x_m) :precision binary64 (* x_s (if (<= x_m 0.78) (* (fma (* x_m x_m) -0.6665536072 1.0) x_m) (/ 0.5 x_m))))
x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double tmp;
if (x_m <= 0.78) {
tmp = fma((x_m * x_m), -0.6665536072, 1.0) * x_m;
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) tmp = 0.0 if (x_m <= 0.78) tmp = Float64(fma(Float64(x_m * x_m), -0.6665536072, 1.0) * x_m); else tmp = Float64(0.5 / x_m); end return Float64(x_s * tmp) end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := N[(x$95$s * If[LessEqual[x$95$m, 0.78], N[(N[(N[(x$95$m * x$95$m), $MachinePrecision] * -0.6665536072 + 1.0), $MachinePrecision] * x$95$m), $MachinePrecision], N[(0.5 / x$95$m), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 0.78:\\
\;\;\;\;\mathsf{fma}\left(x\_m \cdot x\_m, -0.6665536072, 1\right) \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{0.5}{x\_m}\\
\end{array}
\end{array}
if x < 0.78000000000000003Initial program 66.6%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
unpow2N/A
lower-*.f6464.9
Applied rewrites64.9%
if 0.78000000000000003 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64100.0
Applied rewrites100.0%
x\_m = (fabs.f64 x) x\_s = (copysign.f64 #s(literal 1 binary64) x) (FPCore (x_s x_m) :precision binary64 (* x_s (if (<= x_m 0.7) (* 1.0 x_m) (/ 0.5 x_m))))
x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
double tmp;
if (x_m <= 0.7) {
tmp = 1.0 * x_m;
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = abs(x)
x\_s = copysign(1.0d0, x)
real(8) function code(x_s, x_m)
real(8), intent (in) :: x_s
real(8), intent (in) :: x_m
real(8) :: tmp
if (x_m <= 0.7d0) then
tmp = 1.0d0 * x_m
else
tmp = 0.5d0 / x_m
end if
code = x_s * tmp
end function
x\_m = Math.abs(x);
x\_s = Math.copySign(1.0, x);
public static double code(double x_s, double x_m) {
double tmp;
if (x_m <= 0.7) {
tmp = 1.0 * x_m;
} else {
tmp = 0.5 / x_m;
}
return x_s * tmp;
}
x\_m = math.fabs(x) x\_s = math.copysign(1.0, x) def code(x_s, x_m): tmp = 0 if x_m <= 0.7: tmp = 1.0 * x_m else: tmp = 0.5 / x_m return x_s * tmp
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) tmp = 0.0 if (x_m <= 0.7) tmp = Float64(1.0 * x_m); else tmp = Float64(0.5 / x_m); end return Float64(x_s * tmp) end
x\_m = abs(x); x\_s = sign(x) * abs(1.0); function tmp_2 = code(x_s, x_m) tmp = 0.0; if (x_m <= 0.7) tmp = 1.0 * x_m; else tmp = 0.5 / x_m; end tmp_2 = x_s * tmp; end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := N[(x$95$s * If[LessEqual[x$95$m, 0.7], N[(1.0 * x$95$m), $MachinePrecision], N[(0.5 / x$95$m), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
x\_s \cdot \begin{array}{l}
\mathbf{if}\;x\_m \leq 0.7:\\
\;\;\;\;1 \cdot x\_m\\
\mathbf{else}:\\
\;\;\;\;\frac{0.5}{x\_m}\\
\end{array}
\end{array}
if x < 0.69999999999999996Initial program 66.6%
Taylor expanded in x around 0
Applied rewrites65.1%
if 0.69999999999999996 < x Initial program 6.6%
Taylor expanded in x around inf
lower-/.f64100.0
Applied rewrites100.0%
x\_m = (fabs.f64 x) x\_s = (copysign.f64 #s(literal 1 binary64) x) (FPCore (x_s x_m) :precision binary64 (* x_s (* 1.0 x_m)))
x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m) {
return x_s * (1.0 * x_m);
}
x\_m = abs(x)
x\_s = copysign(1.0d0, x)
real(8) function code(x_s, x_m)
real(8), intent (in) :: x_s
real(8), intent (in) :: x_m
code = x_s * (1.0d0 * x_m)
end function
x\_m = Math.abs(x);
x\_s = Math.copySign(1.0, x);
public static double code(double x_s, double x_m) {
return x_s * (1.0 * x_m);
}
x\_m = math.fabs(x) x\_s = math.copysign(1.0, x) def code(x_s, x_m): return x_s * (1.0 * x_m)
x\_m = abs(x) x\_s = copysign(1.0, x) function code(x_s, x_m) return Float64(x_s * Float64(1.0 * x_m)) end
x\_m = abs(x); x\_s = sign(x) * abs(1.0); function tmp = code(x_s, x_m) tmp = x_s * (1.0 * x_m); end
x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_] := N[(x$95$s * N[(1.0 * x$95$m), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
x\_m = \left|x\right|
\\
x\_s = \mathsf{copysign}\left(1, x\right)
\\
x\_s \cdot \left(1 \cdot x\_m\right)
\end{array}
Initial program 48.8%
Taylor expanded in x around 0
Applied rewrites46.9%
herbie shell --seed 2024294
(FPCore (x)
:name "Jmat.Real.dawson"
:precision binary64
(* (/ (+ (+ (+ (+ (+ 1.0 (* 0.1049934947 (* x x))) (* 0.0424060604 (* (* x x) (* x x)))) (* 0.0072644182 (* (* (* x x) (* x x)) (* x x)))) (* 0.0005064034 (* (* (* (* x x) (* x x)) (* x x)) (* x x)))) (* 0.0001789971 (* (* (* (* (* x x) (* x x)) (* x x)) (* x x)) (* x x)))) (+ (+ (+ (+ (+ (+ 1.0 (* 0.7715471019 (* x x))) (* 0.2909738639 (* (* x x) (* x x)))) (* 0.0694555761 (* (* (* x x) (* x x)) (* x x)))) (* 0.0140005442 (* (* (* (* x x) (* x x)) (* x x)) (* x x)))) (* 0.0008327945 (* (* (* (* (* x x) (* x x)) (* x x)) (* x x)) (* x x)))) (* (* 2.0 0.0001789971) (* (* (* (* (* (* x x) (* x x)) (* x x)) (* x x)) (* x x)) (* x x))))) x))