
(FPCore (x) :precision binary64 (- (cbrt (+ x 1.0)) (cbrt x)))
double code(double x) {
return cbrt((x + 1.0)) - cbrt(x);
}
public static double code(double x) {
return Math.cbrt((x + 1.0)) - Math.cbrt(x);
}
function code(x) return Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) end
code[x_] := N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{x + 1} - \sqrt[3]{x}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 17 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x) :precision binary64 (- (cbrt (+ x 1.0)) (cbrt x)))
double code(double x) {
return cbrt((x + 1.0)) - cbrt(x);
}
public static double code(double x) {
return Math.cbrt((x + 1.0)) - Math.cbrt(x);
}
function code(x) return Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) end
code[x_] := N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\sqrt[3]{x + 1} - \sqrt[3]{x}
\end{array}
(FPCore (x)
:precision binary64
(if (<= (- (cbrt (+ x 1.0)) (cbrt x)) 0.0)
(/ (* 0.3333333333333333 (cbrt (- (pow (/ -1.0 x) -1.0)))) x)
(/
(- (+ x 1.0) x)
(+
(cbrt (pow (+ x 1.0) 2.0))
(+ (pow (cbrt x) 2.0) (cbrt (* x (+ x 1.0))))))))
double code(double x) {
double tmp;
if ((cbrt((x + 1.0)) - cbrt(x)) <= 0.0) {
tmp = (0.3333333333333333 * cbrt(-pow((-1.0 / x), -1.0))) / x;
} else {
tmp = ((x + 1.0) - x) / (cbrt(pow((x + 1.0), 2.0)) + (pow(cbrt(x), 2.0) + cbrt((x * (x + 1.0)))));
}
return tmp;
}
public static double code(double x) {
double tmp;
if ((Math.cbrt((x + 1.0)) - Math.cbrt(x)) <= 0.0) {
tmp = (0.3333333333333333 * Math.cbrt(-Math.pow((-1.0 / x), -1.0))) / x;
} else {
tmp = ((x + 1.0) - x) / (Math.cbrt(Math.pow((x + 1.0), 2.0)) + (Math.pow(Math.cbrt(x), 2.0) + Math.cbrt((x * (x + 1.0)))));
}
return tmp;
}
function code(x) tmp = 0.0 if (Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) <= 0.0) tmp = Float64(Float64(0.3333333333333333 * cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0)))) / x); else tmp = Float64(Float64(Float64(x + 1.0) - x) / Float64(cbrt((Float64(x + 1.0) ^ 2.0)) + Float64((cbrt(x) ^ 2.0) + cbrt(Float64(x * Float64(x + 1.0)))))); end return tmp end
code[x_] := If[LessEqual[N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision], 0.0], N[(N[(0.3333333333333333 * N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision], N[(N[(N[(x + 1.0), $MachinePrecision] - x), $MachinePrecision] / N[(N[Power[N[Power[N[(x + 1.0), $MachinePrecision], 2.0], $MachinePrecision], 1/3], $MachinePrecision] + N[(N[Power[N[Power[x, 1/3], $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(x * N[(x + 1.0), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\sqrt[3]{x + 1} - \sqrt[3]{x} \leq 0:\\
\;\;\;\;\frac{0.3333333333333333 \cdot \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}}{x}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left(x + 1\right) - x}{\sqrt[3]{{\left(x + 1\right)}^{2}} + \left({\left(\sqrt[3]{x}\right)}^{2} + \sqrt[3]{x \cdot \left(x + 1\right)}\right)}\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 0.0Initial program 4.1%
add-sqr-sqrt2.3%
add-sqr-sqrt2.2%
difference-of-squares2.2%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
pow1/31.0%
sqrt-pow11.0%
metadata-eval1.0%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
Applied egg-rr2.2%
Taylor expanded in x around -inf 0.0%
associate-*r/0.0%
Simplified99.1%
if 0.0 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 97.5%
flip3--97.4%
rem-cube-cbrt97.7%
rem-cube-cbrt99.8%
cbrt-unprod99.9%
pow299.9%
distribute-rgt-out99.9%
+-commutative99.9%
Applied egg-rr99.9%
+-commutative99.9%
distribute-rgt-in99.9%
pow299.9%
cbrt-unprod99.9%
Applied egg-rr99.9%
Final simplification99.5%
(FPCore (x) :precision binary64 (let* ((t_0 (cbrt (+ x 1.0)))) (pow (pow (fma (cbrt x) (+ (cbrt x) t_0) (pow t_0 2.0)) -0.5) 2.0)))
double code(double x) {
double t_0 = cbrt((x + 1.0));
return pow(pow(fma(cbrt(x), (cbrt(x) + t_0), pow(t_0, 2.0)), -0.5), 2.0);
}
function code(x) t_0 = cbrt(Float64(x + 1.0)) return (fma(cbrt(x), Float64(cbrt(x) + t_0), (t_0 ^ 2.0)) ^ -0.5) ^ 2.0 end
code[x_] := Block[{t$95$0 = N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision]}, N[Power[N[Power[N[(N[Power[x, 1/3], $MachinePrecision] * N[(N[Power[x, 1/3], $MachinePrecision] + t$95$0), $MachinePrecision] + N[Power[t$95$0, 2.0], $MachinePrecision]), $MachinePrecision], -0.5], $MachinePrecision], 2.0], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{x + 1}\\
{\left({\left(\mathsf{fma}\left(\sqrt[3]{x}, \sqrt[3]{x} + t_0, {t_0}^{2}\right)\right)}^{-0.5}\right)}^{2}
\end{array}
\end{array}
Initial program 52.6%
flip3--52.5%
div-inv52.5%
rem-cube-cbrt52.6%
rem-cube-cbrt53.8%
cbrt-unprod53.8%
pow253.8%
distribute-rgt-out53.8%
+-commutative53.8%
Applied egg-rr53.8%
associate-*r/53.8%
*-rgt-identity53.8%
+-commutative53.8%
associate--l+77.3%
+-inverses77.3%
metadata-eval77.3%
+-commutative77.3%
fma-def77.2%
+-commutative77.2%
+-commutative77.2%
Simplified77.2%
unpow277.2%
cbrt-prod99.2%
Applied egg-rr99.2%
unpow299.2%
Simplified99.2%
add-sqr-sqrt99.1%
pow299.1%
inv-pow99.1%
sqrt-pow199.2%
metadata-eval99.2%
Applied egg-rr99.2%
Final simplification99.2%
(FPCore (x)
:precision binary64
(let* ((t_0 (cbrt (+ x 1.0))))
(if (<= (- t_0 (cbrt x)) 0.0)
(/ (* 0.3333333333333333 (cbrt (- (pow (/ -1.0 x) -1.0)))) x)
(/
(+ 1.0 (- x x))
(+ (cbrt (pow (+ x 1.0) 2.0)) (* (cbrt x) (+ (cbrt x) t_0)))))))
double code(double x) {
double t_0 = cbrt((x + 1.0));
double tmp;
if ((t_0 - cbrt(x)) <= 0.0) {
tmp = (0.3333333333333333 * cbrt(-pow((-1.0 / x), -1.0))) / x;
} else {
tmp = (1.0 + (x - x)) / (cbrt(pow((x + 1.0), 2.0)) + (cbrt(x) * (cbrt(x) + t_0)));
}
return tmp;
}
public static double code(double x) {
double t_0 = Math.cbrt((x + 1.0));
double tmp;
if ((t_0 - Math.cbrt(x)) <= 0.0) {
tmp = (0.3333333333333333 * Math.cbrt(-Math.pow((-1.0 / x), -1.0))) / x;
} else {
tmp = (1.0 + (x - x)) / (Math.cbrt(Math.pow((x + 1.0), 2.0)) + (Math.cbrt(x) * (Math.cbrt(x) + t_0)));
}
return tmp;
}
function code(x) t_0 = cbrt(Float64(x + 1.0)) tmp = 0.0 if (Float64(t_0 - cbrt(x)) <= 0.0) tmp = Float64(Float64(0.3333333333333333 * cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0)))) / x); else tmp = Float64(Float64(1.0 + Float64(x - x)) / Float64(cbrt((Float64(x + 1.0) ^ 2.0)) + Float64(cbrt(x) * Float64(cbrt(x) + t_0)))); end return tmp end
code[x_] := Block[{t$95$0 = N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision]}, If[LessEqual[N[(t$95$0 - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision], 0.0], N[(N[(0.3333333333333333 * N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision], N[(N[(1.0 + N[(x - x), $MachinePrecision]), $MachinePrecision] / N[(N[Power[N[Power[N[(x + 1.0), $MachinePrecision], 2.0], $MachinePrecision], 1/3], $MachinePrecision] + N[(N[Power[x, 1/3], $MachinePrecision] * N[(N[Power[x, 1/3], $MachinePrecision] + t$95$0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{x + 1}\\
\mathbf{if}\;t_0 - \sqrt[3]{x} \leq 0:\\
\;\;\;\;\frac{0.3333333333333333 \cdot \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}}{x}\\
\mathbf{else}:\\
\;\;\;\;\frac{1 + \left(x - x\right)}{\sqrt[3]{{\left(x + 1\right)}^{2}} + \sqrt[3]{x} \cdot \left(\sqrt[3]{x} + t_0\right)}\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 0.0Initial program 4.1%
add-sqr-sqrt2.3%
add-sqr-sqrt2.2%
difference-of-squares2.2%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
pow1/31.0%
sqrt-pow11.0%
metadata-eval1.0%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
Applied egg-rr2.2%
Taylor expanded in x around -inf 0.0%
associate-*r/0.0%
Simplified99.1%
if 0.0 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 97.5%
flip3--97.4%
rem-cube-cbrt97.7%
rem-cube-cbrt99.8%
cbrt-unprod99.9%
pow299.9%
distribute-rgt-out99.9%
+-commutative99.9%
Applied egg-rr99.9%
+-commutative99.9%
associate--l+99.8%
Applied egg-rr99.8%
Final simplification99.5%
(FPCore (x)
:precision binary64
(let* ((t_0 (cbrt (+ x 1.0))))
(if (<= (- t_0 (cbrt x)) 0.0)
(/ (* 0.3333333333333333 (cbrt (- (pow (/ -1.0 x) -1.0)))) x)
(/
(- (+ x 1.0) x)
(+ (cbrt (pow (+ x 1.0) 2.0)) (* (cbrt x) (+ (cbrt x) t_0)))))))
double code(double x) {
double t_0 = cbrt((x + 1.0));
double tmp;
if ((t_0 - cbrt(x)) <= 0.0) {
tmp = (0.3333333333333333 * cbrt(-pow((-1.0 / x), -1.0))) / x;
} else {
tmp = ((x + 1.0) - x) / (cbrt(pow((x + 1.0), 2.0)) + (cbrt(x) * (cbrt(x) + t_0)));
}
return tmp;
}
public static double code(double x) {
double t_0 = Math.cbrt((x + 1.0));
double tmp;
if ((t_0 - Math.cbrt(x)) <= 0.0) {
tmp = (0.3333333333333333 * Math.cbrt(-Math.pow((-1.0 / x), -1.0))) / x;
} else {
tmp = ((x + 1.0) - x) / (Math.cbrt(Math.pow((x + 1.0), 2.0)) + (Math.cbrt(x) * (Math.cbrt(x) + t_0)));
}
return tmp;
}
function code(x) t_0 = cbrt(Float64(x + 1.0)) tmp = 0.0 if (Float64(t_0 - cbrt(x)) <= 0.0) tmp = Float64(Float64(0.3333333333333333 * cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0)))) / x); else tmp = Float64(Float64(Float64(x + 1.0) - x) / Float64(cbrt((Float64(x + 1.0) ^ 2.0)) + Float64(cbrt(x) * Float64(cbrt(x) + t_0)))); end return tmp end
code[x_] := Block[{t$95$0 = N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision]}, If[LessEqual[N[(t$95$0 - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision], 0.0], N[(N[(0.3333333333333333 * N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision], N[(N[(N[(x + 1.0), $MachinePrecision] - x), $MachinePrecision] / N[(N[Power[N[Power[N[(x + 1.0), $MachinePrecision], 2.0], $MachinePrecision], 1/3], $MachinePrecision] + N[(N[Power[x, 1/3], $MachinePrecision] * N[(N[Power[x, 1/3], $MachinePrecision] + t$95$0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{x + 1}\\
\mathbf{if}\;t_0 - \sqrt[3]{x} \leq 0:\\
\;\;\;\;\frac{0.3333333333333333 \cdot \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}}{x}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left(x + 1\right) - x}{\sqrt[3]{{\left(x + 1\right)}^{2}} + \sqrt[3]{x} \cdot \left(\sqrt[3]{x} + t_0\right)}\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 0.0Initial program 4.1%
add-sqr-sqrt2.3%
add-sqr-sqrt2.2%
difference-of-squares2.2%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
pow1/31.0%
sqrt-pow11.0%
metadata-eval1.0%
pow1/32.2%
sqrt-pow12.2%
metadata-eval2.2%
Applied egg-rr2.2%
Taylor expanded in x around -inf 0.0%
associate-*r/0.0%
Simplified99.1%
if 0.0 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 97.5%
flip3--97.4%
rem-cube-cbrt97.7%
rem-cube-cbrt99.8%
cbrt-unprod99.9%
pow299.9%
distribute-rgt-out99.9%
+-commutative99.9%
Applied egg-rr99.9%
Final simplification99.5%
(FPCore (x)
:precision binary64
(let* ((t_0 (cbrt (- (pow (/ -1.0 x) -1.0)))))
(if (<= (- (cbrt (+ x 1.0)) (cbrt x)) 0.0015)
(+
(/ (* 0.3333333333333333 t_0) x)
(* (/ t_0 (* x x)) -0.1111111111111111))
(/
1.0
(+
(pow (exp 0.6666666666666666) (log1p x))
(+ (cbrt (* x x)) (cbrt (+ x (* x x)))))))))
double code(double x) {
double t_0 = cbrt(-pow((-1.0 / x), -1.0));
double tmp;
if ((cbrt((x + 1.0)) - cbrt(x)) <= 0.0015) {
tmp = ((0.3333333333333333 * t_0) / x) + ((t_0 / (x * x)) * -0.1111111111111111);
} else {
tmp = 1.0 / (pow(exp(0.6666666666666666), log1p(x)) + (cbrt((x * x)) + cbrt((x + (x * x)))));
}
return tmp;
}
public static double code(double x) {
double t_0 = Math.cbrt(-Math.pow((-1.0 / x), -1.0));
double tmp;
if ((Math.cbrt((x + 1.0)) - Math.cbrt(x)) <= 0.0015) {
tmp = ((0.3333333333333333 * t_0) / x) + ((t_0 / (x * x)) * -0.1111111111111111);
} else {
tmp = 1.0 / (Math.pow(Math.exp(0.6666666666666666), Math.log1p(x)) + (Math.cbrt((x * x)) + Math.cbrt((x + (x * x)))));
}
return tmp;
}
function code(x) t_0 = cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0))) tmp = 0.0 if (Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) <= 0.0015) tmp = Float64(Float64(Float64(0.3333333333333333 * t_0) / x) + Float64(Float64(t_0 / Float64(x * x)) * -0.1111111111111111)); else tmp = Float64(1.0 / Float64((exp(0.6666666666666666) ^ log1p(x)) + Float64(cbrt(Float64(x * x)) + cbrt(Float64(x + Float64(x * x)))))); end return tmp end
code[x_] := Block[{t$95$0 = N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]}, If[LessEqual[N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision], 0.0015], N[(N[(N[(0.3333333333333333 * t$95$0), $MachinePrecision] / x), $MachinePrecision] + N[(N[(t$95$0 / N[(x * x), $MachinePrecision]), $MachinePrecision] * -0.1111111111111111), $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(N[Power[N[Exp[0.6666666666666666], $MachinePrecision], N[Log[1 + x], $MachinePrecision]], $MachinePrecision] + N[(N[Power[N[(x * x), $MachinePrecision], 1/3], $MachinePrecision] + N[Power[N[(x + N[(x * x), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}\\
\mathbf{if}\;\sqrt[3]{x + 1} - \sqrt[3]{x} \leq 0.0015:\\
\;\;\;\;\frac{0.3333333333333333 \cdot t_0}{x} + \frac{t_0}{x \cdot x} \cdot -0.1111111111111111\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{{\left(e^{0.6666666666666666}\right)}^{\left(\mathsf{log1p}\left(x\right)\right)} + \left(\sqrt[3]{x \cdot x} + \sqrt[3]{x + x \cdot x}\right)}\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 0.0015Initial program 6.9%
add-sqr-sqrt4.2%
add-sqr-sqrt4.1%
difference-of-squares4.1%
pow1/34.1%
sqrt-pow14.1%
metadata-eval4.1%
pow1/34.1%
sqrt-pow14.1%
metadata-eval4.1%
pow1/32.9%
sqrt-pow12.9%
metadata-eval2.9%
pow1/34.1%
sqrt-pow14.2%
metadata-eval4.2%
Applied egg-rr4.2%
Taylor expanded in x around -inf 0.0%
+-commutative0.0%
associate-+r+0.0%
+-commutative0.0%
Simplified98.6%
if 0.0015 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 99.8%
flip3--99.7%
div-inv99.7%
rem-cube-cbrt99.7%
rem-cube-cbrt99.9%
cbrt-unprod99.9%
pow299.9%
distribute-rgt-out99.9%
+-commutative99.9%
Applied egg-rr99.9%
associate-*r/99.9%
*-rgt-identity99.9%
+-commutative99.9%
associate--l+99.9%
+-inverses99.9%
metadata-eval99.9%
+-commutative99.9%
fma-def99.9%
+-commutative99.9%
+-commutative99.9%
Simplified99.9%
fma-udef99.9%
pow1/399.9%
unpow299.9%
pow-prod-down99.9%
+-commutative99.9%
pow1/399.9%
+-commutative99.9%
pow1/399.9%
+-commutative99.9%
+-commutative99.9%
+-commutative99.9%
distribute-rgt-in99.9%
associate-+r+99.9%
Applied egg-rr99.9%
associate-+l+100.0%
*-commutative100.0%
distribute-rgt-in100.0%
*-lft-identity100.0%
Simplified100.0%
Final simplification99.3%
(FPCore (x)
:precision binary64
(let* ((t_0 (- (cbrt (+ x 1.0)) (cbrt x)))
(t_1 (cbrt (- (pow (/ -1.0 x) -1.0)))))
(if (<= t_0 0.0001)
(+
(/ (* 0.3333333333333333 t_1) x)
(* (/ t_1 (* x x)) -0.1111111111111111))
t_0)))
double code(double x) {
double t_0 = cbrt((x + 1.0)) - cbrt(x);
double t_1 = cbrt(-pow((-1.0 / x), -1.0));
double tmp;
if (t_0 <= 0.0001) {
tmp = ((0.3333333333333333 * t_1) / x) + ((t_1 / (x * x)) * -0.1111111111111111);
} else {
tmp = t_0;
}
return tmp;
}
public static double code(double x) {
double t_0 = Math.cbrt((x + 1.0)) - Math.cbrt(x);
double t_1 = Math.cbrt(-Math.pow((-1.0 / x), -1.0));
double tmp;
if (t_0 <= 0.0001) {
tmp = ((0.3333333333333333 * t_1) / x) + ((t_1 / (x * x)) * -0.1111111111111111);
} else {
tmp = t_0;
}
return tmp;
}
function code(x) t_0 = Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) t_1 = cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0))) tmp = 0.0 if (t_0 <= 0.0001) tmp = Float64(Float64(Float64(0.3333333333333333 * t_1) / x) + Float64(Float64(t_1 / Float64(x * x)) * -0.1111111111111111)); else tmp = t_0; end return tmp end
code[x_] := Block[{t$95$0 = N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]}, If[LessEqual[t$95$0, 0.0001], N[(N[(N[(0.3333333333333333 * t$95$1), $MachinePrecision] / x), $MachinePrecision] + N[(N[(t$95$1 / N[(x * x), $MachinePrecision]), $MachinePrecision] * -0.1111111111111111), $MachinePrecision]), $MachinePrecision], t$95$0]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{x + 1} - \sqrt[3]{x}\\
t_1 := \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}\\
\mathbf{if}\;t_0 \leq 0.0001:\\
\;\;\;\;\frac{0.3333333333333333 \cdot t_1}{x} + \frac{t_1}{x \cdot x} \cdot -0.1111111111111111\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 1.00000000000000005e-4Initial program 6.3%
add-sqr-sqrt4.3%
add-sqr-sqrt4.2%
difference-of-squares4.2%
pow1/34.2%
sqrt-pow14.2%
metadata-eval4.2%
pow1/34.2%
sqrt-pow14.2%
metadata-eval4.2%
pow1/32.9%
sqrt-pow12.9%
metadata-eval2.9%
pow1/34.2%
sqrt-pow14.2%
metadata-eval4.2%
Applied egg-rr4.2%
Taylor expanded in x around -inf 0.0%
+-commutative0.0%
associate-+r+0.0%
+-commutative0.0%
Simplified98.9%
if 1.00000000000000005e-4 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 99.6%
Final simplification99.2%
(FPCore (x)
:precision binary64
(let* ((t_0 (cbrt (+ x 1.0))))
(if (<= (- t_0 (cbrt x)) 1e-7)
(/ (* 0.3333333333333333 (cbrt (- (pow (/ -1.0 x) -1.0)))) x)
(/
(- (+ x 1.0) x)
(+ (* (cbrt x) (+ (cbrt x) t_0)) (pow (+ x 1.0) 0.6666666666666666))))))
double code(double x) {
double t_0 = cbrt((x + 1.0));
double tmp;
if ((t_0 - cbrt(x)) <= 1e-7) {
tmp = (0.3333333333333333 * cbrt(-pow((-1.0 / x), -1.0))) / x;
} else {
tmp = ((x + 1.0) - x) / ((cbrt(x) * (cbrt(x) + t_0)) + pow((x + 1.0), 0.6666666666666666));
}
return tmp;
}
public static double code(double x) {
double t_0 = Math.cbrt((x + 1.0));
double tmp;
if ((t_0 - Math.cbrt(x)) <= 1e-7) {
tmp = (0.3333333333333333 * Math.cbrt(-Math.pow((-1.0 / x), -1.0))) / x;
} else {
tmp = ((x + 1.0) - x) / ((Math.cbrt(x) * (Math.cbrt(x) + t_0)) + Math.pow((x + 1.0), 0.6666666666666666));
}
return tmp;
}
function code(x) t_0 = cbrt(Float64(x + 1.0)) tmp = 0.0 if (Float64(t_0 - cbrt(x)) <= 1e-7) tmp = Float64(Float64(0.3333333333333333 * cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0)))) / x); else tmp = Float64(Float64(Float64(x + 1.0) - x) / Float64(Float64(cbrt(x) * Float64(cbrt(x) + t_0)) + (Float64(x + 1.0) ^ 0.6666666666666666))); end return tmp end
code[x_] := Block[{t$95$0 = N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision]}, If[LessEqual[N[(t$95$0 - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision], 1e-7], N[(N[(0.3333333333333333 * N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision], N[(N[(N[(x + 1.0), $MachinePrecision] - x), $MachinePrecision] / N[(N[(N[Power[x, 1/3], $MachinePrecision] * N[(N[Power[x, 1/3], $MachinePrecision] + t$95$0), $MachinePrecision]), $MachinePrecision] + N[Power[N[(x + 1.0), $MachinePrecision], 0.6666666666666666], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{x + 1}\\
\mathbf{if}\;t_0 - \sqrt[3]{x} \leq 10^{-7}:\\
\;\;\;\;\frac{0.3333333333333333 \cdot \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}}{x}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left(x + 1\right) - x}{\sqrt[3]{x} \cdot \left(\sqrt[3]{x} + t_0\right) + {\left(x + 1\right)}^{0.6666666666666666}}\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 9.9999999999999995e-8Initial program 5.0%
add-sqr-sqrt2.9%
add-sqr-sqrt2.8%
difference-of-squares2.8%
pow1/32.8%
sqrt-pow12.8%
metadata-eval2.8%
pow1/32.8%
sqrt-pow12.8%
metadata-eval2.8%
pow1/31.5%
sqrt-pow11.5%
metadata-eval1.5%
pow1/32.8%
sqrt-pow12.8%
metadata-eval2.8%
Applied egg-rr2.8%
Taylor expanded in x around -inf 0.0%
associate-*r/0.0%
Simplified98.6%
if 9.9999999999999995e-8 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 98.7%
flip3--98.7%
rem-cube-cbrt99.0%
rem-cube-cbrt99.8%
cbrt-unprod99.9%
pow299.9%
distribute-rgt-out99.9%
+-commutative99.9%
Applied egg-rr99.9%
pow1/399.9%
pow-pow99.1%
metadata-eval99.1%
Applied egg-rr99.1%
Final simplification98.9%
(FPCore (x) :precision binary64 (if (<= (- (cbrt (+ x 1.0)) (cbrt x)) 1e-6) (/ (* 0.3333333333333333 (cbrt (- (pow (/ -1.0 x) -1.0)))) x) (- (/ (cbrt (fma x x -1.0)) (cbrt (+ x -1.0))) (cbrt x))))
double code(double x) {
double tmp;
if ((cbrt((x + 1.0)) - cbrt(x)) <= 1e-6) {
tmp = (0.3333333333333333 * cbrt(-pow((-1.0 / x), -1.0))) / x;
} else {
tmp = (cbrt(fma(x, x, -1.0)) / cbrt((x + -1.0))) - cbrt(x);
}
return tmp;
}
function code(x) tmp = 0.0 if (Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) <= 1e-6) tmp = Float64(Float64(0.3333333333333333 * cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0)))) / x); else tmp = Float64(Float64(cbrt(fma(x, x, -1.0)) / cbrt(Float64(x + -1.0))) - cbrt(x)); end return tmp end
code[x_] := If[LessEqual[N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision], 1e-6], N[(N[(0.3333333333333333 * N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision], N[(N[(N[Power[N[(x * x + -1.0), $MachinePrecision], 1/3], $MachinePrecision] / N[Power[N[(x + -1.0), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\sqrt[3]{x + 1} - \sqrt[3]{x} \leq 10^{-6}:\\
\;\;\;\;\frac{0.3333333333333333 \cdot \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}}{x}\\
\mathbf{else}:\\
\;\;\;\;\frac{\sqrt[3]{\mathsf{fma}\left(x, x, -1\right)}}{\sqrt[3]{x + -1}} - \sqrt[3]{x}\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 9.99999999999999955e-7Initial program 5.4%
add-sqr-sqrt3.3%
add-sqr-sqrt3.2%
difference-of-squares3.2%
pow1/33.2%
sqrt-pow13.2%
metadata-eval3.2%
pow1/33.2%
sqrt-pow13.2%
metadata-eval3.2%
pow1/31.9%
sqrt-pow11.9%
metadata-eval1.9%
pow1/33.2%
sqrt-pow13.3%
metadata-eval3.3%
Applied egg-rr3.3%
Taylor expanded in x around -inf 0.0%
associate-*r/0.0%
Simplified98.4%
if 9.99999999999999955e-7 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 99.1%
flip-+99.1%
cbrt-div99.1%
metadata-eval99.1%
fma-neg99.1%
metadata-eval99.1%
sub-neg99.1%
metadata-eval99.1%
Applied egg-rr99.1%
Final simplification98.7%
(FPCore (x) :precision binary64 (let* ((t_0 (cbrt (+ x 1.0)))) (/ 1.0 (fma (cbrt x) (+ (cbrt x) t_0) (pow t_0 2.0)))))
double code(double x) {
double t_0 = cbrt((x + 1.0));
return 1.0 / fma(cbrt(x), (cbrt(x) + t_0), pow(t_0, 2.0));
}
function code(x) t_0 = cbrt(Float64(x + 1.0)) return Float64(1.0 / fma(cbrt(x), Float64(cbrt(x) + t_0), (t_0 ^ 2.0))) end
code[x_] := Block[{t$95$0 = N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision]}, N[(1.0 / N[(N[Power[x, 1/3], $MachinePrecision] * N[(N[Power[x, 1/3], $MachinePrecision] + t$95$0), $MachinePrecision] + N[Power[t$95$0, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{x + 1}\\
\frac{1}{\mathsf{fma}\left(\sqrt[3]{x}, \sqrt[3]{x} + t_0, {t_0}^{2}\right)}
\end{array}
\end{array}
Initial program 52.6%
flip3--52.5%
div-inv52.5%
rem-cube-cbrt52.6%
rem-cube-cbrt53.8%
cbrt-unprod53.8%
pow253.8%
distribute-rgt-out53.8%
+-commutative53.8%
Applied egg-rr53.8%
associate-*r/53.8%
*-rgt-identity53.8%
+-commutative53.8%
associate--l+77.3%
+-inverses77.3%
metadata-eval77.3%
+-commutative77.3%
fma-def77.2%
+-commutative77.2%
+-commutative77.2%
Simplified77.2%
unpow277.2%
cbrt-prod99.2%
Applied egg-rr99.2%
unpow299.2%
Simplified99.2%
Final simplification99.2%
(FPCore (x) :precision binary64 (if (<= (- (cbrt (+ x 1.0)) (cbrt x)) 1e-6) (/ (* 0.3333333333333333 (cbrt (- (pow (/ -1.0 x) -1.0)))) x) (- (cbrt (* (- 1.0 (* x x)) (/ 1.0 (- 1.0 x)))) (cbrt x))))
double code(double x) {
double tmp;
if ((cbrt((x + 1.0)) - cbrt(x)) <= 1e-6) {
tmp = (0.3333333333333333 * cbrt(-pow((-1.0 / x), -1.0))) / x;
} else {
tmp = cbrt(((1.0 - (x * x)) * (1.0 / (1.0 - x)))) - cbrt(x);
}
return tmp;
}
public static double code(double x) {
double tmp;
if ((Math.cbrt((x + 1.0)) - Math.cbrt(x)) <= 1e-6) {
tmp = (0.3333333333333333 * Math.cbrt(-Math.pow((-1.0 / x), -1.0))) / x;
} else {
tmp = Math.cbrt(((1.0 - (x * x)) * (1.0 / (1.0 - x)))) - Math.cbrt(x);
}
return tmp;
}
function code(x) tmp = 0.0 if (Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) <= 1e-6) tmp = Float64(Float64(0.3333333333333333 * cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0)))) / x); else tmp = Float64(cbrt(Float64(Float64(1.0 - Float64(x * x)) * Float64(1.0 / Float64(1.0 - x)))) - cbrt(x)); end return tmp end
code[x_] := If[LessEqual[N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision], 1e-6], N[(N[(0.3333333333333333 * N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision], N[(N[Power[N[(N[(1.0 - N[(x * x), $MachinePrecision]), $MachinePrecision] * N[(1.0 / N[(1.0 - x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\sqrt[3]{x + 1} - \sqrt[3]{x} \leq 10^{-6}:\\
\;\;\;\;\frac{0.3333333333333333 \cdot \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}}{x}\\
\mathbf{else}:\\
\;\;\;\;\sqrt[3]{\left(1 - x \cdot x\right) \cdot \frac{1}{1 - x}} - \sqrt[3]{x}\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 9.99999999999999955e-7Initial program 5.4%
add-sqr-sqrt3.3%
add-sqr-sqrt3.2%
difference-of-squares3.2%
pow1/33.2%
sqrt-pow13.2%
metadata-eval3.2%
pow1/33.2%
sqrt-pow13.2%
metadata-eval3.2%
pow1/31.9%
sqrt-pow11.9%
metadata-eval1.9%
pow1/33.2%
sqrt-pow13.3%
metadata-eval3.3%
Applied egg-rr3.3%
Taylor expanded in x around -inf 0.0%
associate-*r/0.0%
Simplified98.4%
if 9.99999999999999955e-7 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 99.1%
add-exp-log98.5%
pow1/398.5%
log-pow98.5%
+-commutative98.5%
log1p-udef98.5%
Applied egg-rr98.5%
*-commutative98.5%
exp-prod98.5%
unpow1/398.5%
Simplified98.5%
log1p-udef98.5%
add-exp-log99.1%
flip-+99.1%
div-inv99.1%
metadata-eval99.1%
Applied egg-rr99.1%
Final simplification98.7%
(FPCore (x)
:precision binary64
(let* ((t_0 (- (cbrt (+ x 1.0)) (cbrt x))))
(if (<= t_0 1e-6)
(/ (* 0.3333333333333333 (cbrt (- (pow (/ -1.0 x) -1.0)))) x)
t_0)))
double code(double x) {
double t_0 = cbrt((x + 1.0)) - cbrt(x);
double tmp;
if (t_0 <= 1e-6) {
tmp = (0.3333333333333333 * cbrt(-pow((-1.0 / x), -1.0))) / x;
} else {
tmp = t_0;
}
return tmp;
}
public static double code(double x) {
double t_0 = Math.cbrt((x + 1.0)) - Math.cbrt(x);
double tmp;
if (t_0 <= 1e-6) {
tmp = (0.3333333333333333 * Math.cbrt(-Math.pow((-1.0 / x), -1.0))) / x;
} else {
tmp = t_0;
}
return tmp;
}
function code(x) t_0 = Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) tmp = 0.0 if (t_0 <= 1e-6) tmp = Float64(Float64(0.3333333333333333 * cbrt(Float64(-(Float64(-1.0 / x) ^ -1.0)))) / x); else tmp = t_0; end return tmp end
code[x_] := Block[{t$95$0 = N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, 1e-6], N[(N[(0.3333333333333333 * N[Power[(-N[Power[N[(-1.0 / x), $MachinePrecision], -1.0], $MachinePrecision]), 1/3], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision], t$95$0]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{x + 1} - \sqrt[3]{x}\\
\mathbf{if}\;t_0 \leq 10^{-6}:\\
\;\;\;\;\frac{0.3333333333333333 \cdot \sqrt[3]{-{\left(\frac{-1}{x}\right)}^{-1}}}{x}\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 9.99999999999999955e-7Initial program 5.4%
add-sqr-sqrt3.3%
add-sqr-sqrt3.2%
difference-of-squares3.2%
pow1/33.2%
sqrt-pow13.2%
metadata-eval3.2%
pow1/33.2%
sqrt-pow13.2%
metadata-eval3.2%
pow1/31.9%
sqrt-pow11.9%
metadata-eval1.9%
pow1/33.2%
sqrt-pow13.3%
metadata-eval3.3%
Applied egg-rr3.3%
Taylor expanded in x around -inf 0.0%
associate-*r/0.0%
Simplified98.4%
if 9.99999999999999955e-7 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 99.1%
Final simplification98.7%
(FPCore (x) :precision binary64 (let* ((t_0 (- (cbrt (+ x 1.0)) (cbrt x)))) (if (<= t_0 1e-6) (* 0.3333333333333333 (cbrt (/ 1.0 (* x x)))) t_0)))
double code(double x) {
double t_0 = cbrt((x + 1.0)) - cbrt(x);
double tmp;
if (t_0 <= 1e-6) {
tmp = 0.3333333333333333 * cbrt((1.0 / (x * x)));
} else {
tmp = t_0;
}
return tmp;
}
public static double code(double x) {
double t_0 = Math.cbrt((x + 1.0)) - Math.cbrt(x);
double tmp;
if (t_0 <= 1e-6) {
tmp = 0.3333333333333333 * Math.cbrt((1.0 / (x * x)));
} else {
tmp = t_0;
}
return tmp;
}
function code(x) t_0 = Float64(cbrt(Float64(x + 1.0)) - cbrt(x)) tmp = 0.0 if (t_0 <= 1e-6) tmp = Float64(0.3333333333333333 * cbrt(Float64(1.0 / Float64(x * x)))); else tmp = t_0; end return tmp end
code[x_] := Block[{t$95$0 = N[(N[Power[N[(x + 1.0), $MachinePrecision], 1/3], $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, 1e-6], N[(0.3333333333333333 * N[Power[N[(1.0 / N[(x * x), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision], t$95$0]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{x + 1} - \sqrt[3]{x}\\
\mathbf{if}\;t_0 \leq 10^{-6}:\\
\;\;\;\;0.3333333333333333 \cdot \sqrt[3]{\frac{1}{x \cdot x}}\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
if (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) < 9.99999999999999955e-7Initial program 5.4%
add-sqr-sqrt3.3%
add-sqr-sqrt3.2%
difference-of-squares3.2%
pow1/33.2%
sqrt-pow13.2%
metadata-eval3.2%
pow1/33.2%
sqrt-pow13.2%
metadata-eval3.2%
pow1/31.9%
sqrt-pow11.9%
metadata-eval1.9%
pow1/33.2%
sqrt-pow13.3%
metadata-eval3.3%
Applied egg-rr3.3%
Taylor expanded in x around inf 50.1%
unpow1/353.4%
unpow253.4%
Simplified53.4%
if 9.99999999999999955e-7 < (-.f64 (cbrt.f64 (+.f64 x 1)) (cbrt.f64 x)) Initial program 99.1%
Final simplification76.5%
(FPCore (x) :precision binary64 (if (or (<= x -1.0) (not (<= x 0.47))) (* 0.3333333333333333 (cbrt (/ 1.0 (* x x)))) (- 1.0 (cbrt x))))
double code(double x) {
double tmp;
if ((x <= -1.0) || !(x <= 0.47)) {
tmp = 0.3333333333333333 * cbrt((1.0 / (x * x)));
} else {
tmp = 1.0 - cbrt(x);
}
return tmp;
}
public static double code(double x) {
double tmp;
if ((x <= -1.0) || !(x <= 0.47)) {
tmp = 0.3333333333333333 * Math.cbrt((1.0 / (x * x)));
} else {
tmp = 1.0 - Math.cbrt(x);
}
return tmp;
}
function code(x) tmp = 0.0 if ((x <= -1.0) || !(x <= 0.47)) tmp = Float64(0.3333333333333333 * cbrt(Float64(1.0 / Float64(x * x)))); else tmp = Float64(1.0 - cbrt(x)); end return tmp end
code[x_] := If[Or[LessEqual[x, -1.0], N[Not[LessEqual[x, 0.47]], $MachinePrecision]], N[(0.3333333333333333 * N[Power[N[(1.0 / N[(x * x), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision], N[(1.0 - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1 \lor \neg \left(x \leq 0.47\right):\\
\;\;\;\;0.3333333333333333 \cdot \sqrt[3]{\frac{1}{x \cdot x}}\\
\mathbf{else}:\\
\;\;\;\;1 - \sqrt[3]{x}\\
\end{array}
\end{array}
if x < -1 or 0.46999999999999997 < x Initial program 8.1%
add-sqr-sqrt5.5%
add-sqr-sqrt5.4%
difference-of-squares5.4%
pow1/35.4%
sqrt-pow15.4%
metadata-eval5.4%
pow1/35.4%
sqrt-pow15.4%
metadata-eval5.4%
pow1/34.1%
sqrt-pow14.1%
metadata-eval4.1%
pow1/35.4%
sqrt-pow15.5%
metadata-eval5.5%
Applied egg-rr5.5%
Taylor expanded in x around inf 49.7%
unpow1/353.0%
unpow253.0%
Simplified53.0%
if -1 < x < 0.46999999999999997Initial program 100.0%
add-cube-cbrt100.0%
pow3100.0%
Applied egg-rr100.0%
Taylor expanded in x around 0 40.6%
metadata-eval40.6%
pow-base-140.6%
unpow1/397.9%
*-lft-identity97.9%
Simplified97.9%
Final simplification74.8%
(FPCore (x) :precision binary64 (if (or (<= x -1.05) (not (<= x 1.0))) (* 0.3333333333333333 (cbrt (/ 1.0 (* x x)))) (+ 1.0 (- (* x 0.3333333333333333) (cbrt x)))))
double code(double x) {
double tmp;
if ((x <= -1.05) || !(x <= 1.0)) {
tmp = 0.3333333333333333 * cbrt((1.0 / (x * x)));
} else {
tmp = 1.0 + ((x * 0.3333333333333333) - cbrt(x));
}
return tmp;
}
public static double code(double x) {
double tmp;
if ((x <= -1.05) || !(x <= 1.0)) {
tmp = 0.3333333333333333 * Math.cbrt((1.0 / (x * x)));
} else {
tmp = 1.0 + ((x * 0.3333333333333333) - Math.cbrt(x));
}
return tmp;
}
function code(x) tmp = 0.0 if ((x <= -1.05) || !(x <= 1.0)) tmp = Float64(0.3333333333333333 * cbrt(Float64(1.0 / Float64(x * x)))); else tmp = Float64(1.0 + Float64(Float64(x * 0.3333333333333333) - cbrt(x))); end return tmp end
code[x_] := If[Or[LessEqual[x, -1.05], N[Not[LessEqual[x, 1.0]], $MachinePrecision]], N[(0.3333333333333333 * N[Power[N[(1.0 / N[(x * x), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(N[(x * 0.3333333333333333), $MachinePrecision] - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.05 \lor \neg \left(x \leq 1\right):\\
\;\;\;\;0.3333333333333333 \cdot \sqrt[3]{\frac{1}{x \cdot x}}\\
\mathbf{else}:\\
\;\;\;\;1 + \left(x \cdot 0.3333333333333333 - \sqrt[3]{x}\right)\\
\end{array}
\end{array}
if x < -1.05000000000000004 or 1 < x Initial program 8.1%
add-sqr-sqrt5.5%
add-sqr-sqrt5.4%
difference-of-squares5.4%
pow1/35.4%
sqrt-pow15.4%
metadata-eval5.4%
pow1/35.4%
sqrt-pow15.4%
metadata-eval5.4%
pow1/34.1%
sqrt-pow14.1%
metadata-eval4.1%
pow1/35.4%
sqrt-pow15.5%
metadata-eval5.5%
Applied egg-rr5.5%
Taylor expanded in x around inf 49.7%
unpow1/353.0%
unpow253.0%
Simplified53.0%
if -1.05000000000000004 < x < 1Initial program 100.0%
add-cube-cbrt100.0%
pow3100.0%
Applied egg-rr100.0%
Taylor expanded in x around 0 40.8%
associate--l+40.8%
*-commutative40.8%
metadata-eval40.8%
pow-base-140.8%
unpow1/399.0%
*-lft-identity99.0%
Simplified99.0%
Final simplification75.3%
(FPCore (x) :precision binary64 (- 1.0 (cbrt x)))
double code(double x) {
return 1.0 - cbrt(x);
}
public static double code(double x) {
return 1.0 - Math.cbrt(x);
}
function code(x) return Float64(1.0 - cbrt(x)) end
code[x_] := N[(1.0 - N[Power[x, 1/3], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
1 - \sqrt[3]{x}
\end{array}
Initial program 52.6%
add-cube-cbrt52.5%
pow352.4%
Applied egg-rr52.4%
Taylor expanded in x around 0 20.2%
metadata-eval20.2%
pow-base-120.2%
unpow1/349.2%
*-lft-identity49.2%
Simplified49.2%
Final simplification49.2%
(FPCore (x) :precision binary64 0.0)
double code(double x) {
return 0.0;
}
real(8) function code(x)
real(8), intent (in) :: x
code = 0.0d0
end function
public static double code(double x) {
return 0.0;
}
def code(x): return 0.0
function code(x) return 0.0 end
function tmp = code(x) tmp = 0.0; end
code[x_] := 0.0
\begin{array}{l}
\\
0
\end{array}
Initial program 52.6%
Taylor expanded in x around inf 3.6%
Final simplification3.6%
(FPCore (x) :precision binary64 1.0)
double code(double x) {
return 1.0;
}
real(8) function code(x)
real(8), intent (in) :: x
code = 1.0d0
end function
public static double code(double x) {
return 1.0;
}
def code(x): return 1.0
function code(x) return 1.0 end
function tmp = code(x) tmp = 1.0; end
code[x_] := 1.0
\begin{array}{l}
\\
1
\end{array}
Initial program 52.6%
Taylor expanded in x around 0 48.9%
Final simplification48.9%
herbie shell --seed 2023208
(FPCore (x)
:name "2cbrt (problem 3.3.4)"
:precision binary64
(- (cbrt (+ x 1.0)) (cbrt x)))