
(FPCore (v t) :precision binary64 (/ (- 1.0 (* 5.0 (* v v))) (* (* (* PI t) (sqrt (* 2.0 (- 1.0 (* 3.0 (* v v)))))) (- 1.0 (* v v)))))
double code(double v, double t) {
return (1.0 - (5.0 * (v * v))) / (((((double) M_PI) * t) * sqrt((2.0 * (1.0 - (3.0 * (v * v)))))) * (1.0 - (v * v)));
}
public static double code(double v, double t) {
return (1.0 - (5.0 * (v * v))) / (((Math.PI * t) * Math.sqrt((2.0 * (1.0 - (3.0 * (v * v)))))) * (1.0 - (v * v)));
}
def code(v, t): return (1.0 - (5.0 * (v * v))) / (((math.pi * t) * math.sqrt((2.0 * (1.0 - (3.0 * (v * v)))))) * (1.0 - (v * v)))
function code(v, t) return Float64(Float64(1.0 - Float64(5.0 * Float64(v * v))) / Float64(Float64(Float64(pi * t) * sqrt(Float64(2.0 * Float64(1.0 - Float64(3.0 * Float64(v * v)))))) * Float64(1.0 - Float64(v * v)))) end
function tmp = code(v, t) tmp = (1.0 - (5.0 * (v * v))) / (((pi * t) * sqrt((2.0 * (1.0 - (3.0 * (v * v)))))) * (1.0 - (v * v))); end
code[v_, t_] := N[(N[(1.0 - N[(5.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(Pi * t), $MachinePrecision] * N[Sqrt[N[(2.0 * N[(1.0 - N[(3.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] * N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 - 5 \cdot \left(v \cdot v\right)}{\left(\left(\pi \cdot t\right) \cdot \sqrt{2 \cdot \left(1 - 3 \cdot \left(v \cdot v\right)\right)}\right) \cdot \left(1 - v \cdot v\right)}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 10 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (v t) :precision binary64 (/ (- 1.0 (* 5.0 (* v v))) (* (* (* PI t) (sqrt (* 2.0 (- 1.0 (* 3.0 (* v v)))))) (- 1.0 (* v v)))))
double code(double v, double t) {
return (1.0 - (5.0 * (v * v))) / (((((double) M_PI) * t) * sqrt((2.0 * (1.0 - (3.0 * (v * v)))))) * (1.0 - (v * v)));
}
public static double code(double v, double t) {
return (1.0 - (5.0 * (v * v))) / (((Math.PI * t) * Math.sqrt((2.0 * (1.0 - (3.0 * (v * v)))))) * (1.0 - (v * v)));
}
def code(v, t): return (1.0 - (5.0 * (v * v))) / (((math.pi * t) * math.sqrt((2.0 * (1.0 - (3.0 * (v * v)))))) * (1.0 - (v * v)))
function code(v, t) return Float64(Float64(1.0 - Float64(5.0 * Float64(v * v))) / Float64(Float64(Float64(pi * t) * sqrt(Float64(2.0 * Float64(1.0 - Float64(3.0 * Float64(v * v)))))) * Float64(1.0 - Float64(v * v)))) end
function tmp = code(v, t) tmp = (1.0 - (5.0 * (v * v))) / (((pi * t) * sqrt((2.0 * (1.0 - (3.0 * (v * v)))))) * (1.0 - (v * v))); end
code[v_, t_] := N[(N[(1.0 - N[(5.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(Pi * t), $MachinePrecision] * N[Sqrt[N[(2.0 * N[(1.0 - N[(3.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] * N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 - 5 \cdot \left(v \cdot v\right)}{\left(\left(\pi \cdot t\right) \cdot \sqrt{2 \cdot \left(1 - 3 \cdot \left(v \cdot v\right)\right)}\right) \cdot \left(1 - v \cdot v\right)}
\end{array}
(FPCore (v t) :precision binary64 (/ (/ (fma v (* v -5.0) 1.0) (* t (* PI (sqrt (+ 2.0 (* 2.0 (* v (* v -3.0)))))))) (- 1.0 (* v v))))
double code(double v, double t) {
return (fma(v, (v * -5.0), 1.0) / (t * (((double) M_PI) * sqrt((2.0 + (2.0 * (v * (v * -3.0)))))))) / (1.0 - (v * v));
}
function code(v, t) return Float64(Float64(fma(v, Float64(v * -5.0), 1.0) / Float64(t * Float64(pi * sqrt(Float64(2.0 + Float64(2.0 * Float64(v * Float64(v * -3.0)))))))) / Float64(1.0 - Float64(v * v))) end
code[v_, t_] := N[(N[(N[(v * N[(v * -5.0), $MachinePrecision] + 1.0), $MachinePrecision] / N[(t * N[(Pi * N[Sqrt[N[(2.0 + N[(2.0 * N[(v * N[(v * -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\frac{\mathsf{fma}\left(v, v \cdot -5, 1\right)}{t \cdot \left(\pi \cdot \sqrt{2 + 2 \cdot \left(v \cdot \left(v \cdot -3\right)\right)}\right)}}{1 - v \cdot v}
\end{array}
Initial program 99.4%
Simplified99.4%
Applied egg-rr99.4%
unpow-199.4%
associate-/l*99.4%
distribute-lft-in99.4%
metadata-eval99.4%
unpow299.4%
*-commutative99.4%
unpow299.4%
Simplified99.4%
*-un-lft-identity99.4%
associate-/r/99.4%
associate-*l*99.5%
metadata-eval99.5%
*-commutative99.5%
distribute-lft-in99.5%
distribute-lft-in99.5%
metadata-eval99.5%
*-commutative99.5%
associate-*l*99.5%
Applied egg-rr99.5%
*-lft-identity99.5%
associate-*l/99.5%
*-lft-identity99.5%
Simplified99.5%
Final simplification99.5%
(FPCore (v t) :precision binary64 (/ (/ (/ 1.0 (- 1.0 (* v v))) (sqrt (+ 2.0 (* v (* v -6.0))))) (* PI (/ t (fma v (* v -5.0) 1.0)))))
double code(double v, double t) {
return ((1.0 / (1.0 - (v * v))) / sqrt((2.0 + (v * (v * -6.0))))) / (((double) M_PI) * (t / fma(v, (v * -5.0), 1.0)));
}
function code(v, t) return Float64(Float64(Float64(1.0 / Float64(1.0 - Float64(v * v))) / sqrt(Float64(2.0 + Float64(v * Float64(v * -6.0))))) / Float64(pi * Float64(t / fma(v, Float64(v * -5.0), 1.0)))) end
code[v_, t_] := N[(N[(N[(1.0 / N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[Sqrt[N[(2.0 + N[(v * N[(v * -6.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / N[(Pi * N[(t / N[(v * N[(v * -5.0), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\frac{\frac{1}{1 - v \cdot v}}{\sqrt{2 + v \cdot \left(v \cdot -6\right)}}}{\pi \cdot \frac{t}{\mathsf{fma}\left(v, v \cdot -5, 1\right)}}
\end{array}
Initial program 99.4%
associate-*l*99.4%
associate-/r*99.3%
sub-neg99.3%
+-commutative99.3%
sqr-neg99.3%
*-commutative99.3%
distribute-rgt-neg-in99.3%
fma-def99.3%
sqr-neg99.3%
metadata-eval99.3%
Simplified99.3%
clear-num99.3%
inv-pow99.3%
*-commutative99.3%
fma-udef99.3%
associate-*l*99.3%
fma-def99.3%
Applied egg-rr99.3%
unpow-199.3%
Simplified99.3%
div-inv99.3%
associate-/l*99.4%
*-commutative99.4%
Applied egg-rr99.4%
Taylor expanded in t around 0 99.3%
associate-/l*99.4%
*-commutative99.4%
unpow299.4%
Simplified99.4%
associate-*l/99.6%
*-un-lft-identity99.6%
associate-/r*99.6%
associate-*r*99.6%
associate-/r/99.4%
+-commutative99.4%
associate-*l*99.4%
fma-udef99.4%
Applied egg-rr99.4%
Final simplification99.4%
(FPCore (v t) :precision binary64 (* (/ 1.0 (/ t (/ (+ 1.0 (* -5.0 (* v v))) PI))) (/ 1.0 (* (- 1.0 (* v v)) (sqrt (+ 2.0 (* (* v v) -6.0)))))))
double code(double v, double t) {
return (1.0 / (t / ((1.0 + (-5.0 * (v * v))) / ((double) M_PI)))) * (1.0 / ((1.0 - (v * v)) * sqrt((2.0 + ((v * v) * -6.0)))));
}
public static double code(double v, double t) {
return (1.0 / (t / ((1.0 + (-5.0 * (v * v))) / Math.PI))) * (1.0 / ((1.0 - (v * v)) * Math.sqrt((2.0 + ((v * v) * -6.0)))));
}
def code(v, t): return (1.0 / (t / ((1.0 + (-5.0 * (v * v))) / math.pi))) * (1.0 / ((1.0 - (v * v)) * math.sqrt((2.0 + ((v * v) * -6.0)))))
function code(v, t) return Float64(Float64(1.0 / Float64(t / Float64(Float64(1.0 + Float64(-5.0 * Float64(v * v))) / pi))) * Float64(1.0 / Float64(Float64(1.0 - Float64(v * v)) * sqrt(Float64(2.0 + Float64(Float64(v * v) * -6.0)))))) end
function tmp = code(v, t) tmp = (1.0 / (t / ((1.0 + (-5.0 * (v * v))) / pi))) * (1.0 / ((1.0 - (v * v)) * sqrt((2.0 + ((v * v) * -6.0))))); end
code[v_, t_] := N[(N[(1.0 / N[(t / N[(N[(1.0 + N[(-5.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / Pi), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(1.0 / N[(N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision] * N[Sqrt[N[(2.0 + N[(N[(v * v), $MachinePrecision] * -6.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\frac{t}{\frac{1 + -5 \cdot \left(v \cdot v\right)}{\pi}}} \cdot \frac{1}{\left(1 - v \cdot v\right) \cdot \sqrt{2 + \left(v \cdot v\right) \cdot -6}}
\end{array}
Initial program 99.4%
associate-*l*99.4%
associate-/r*99.3%
sub-neg99.3%
+-commutative99.3%
sqr-neg99.3%
*-commutative99.3%
distribute-rgt-neg-in99.3%
fma-def99.3%
sqr-neg99.3%
metadata-eval99.3%
Simplified99.3%
clear-num99.3%
inv-pow99.3%
*-commutative99.3%
fma-udef99.3%
associate-*l*99.3%
fma-def99.3%
Applied egg-rr99.3%
unpow-199.3%
Simplified99.3%
div-inv99.3%
associate-/l*99.4%
*-commutative99.4%
Applied egg-rr99.4%
Taylor expanded in t around 0 99.3%
associate-/l*99.4%
*-commutative99.4%
unpow299.4%
Simplified99.4%
Final simplification99.4%
(FPCore (v t) :precision binary64 (* (/ 1.0 (* (- 1.0 (* v v)) (sqrt (+ 2.0 (* (* v v) -6.0))))) (/ (/ (+ 1.0 (* -5.0 (* v v))) t) PI)))
double code(double v, double t) {
return (1.0 / ((1.0 - (v * v)) * sqrt((2.0 + ((v * v) * -6.0))))) * (((1.0 + (-5.0 * (v * v))) / t) / ((double) M_PI));
}
public static double code(double v, double t) {
return (1.0 / ((1.0 - (v * v)) * Math.sqrt((2.0 + ((v * v) * -6.0))))) * (((1.0 + (-5.0 * (v * v))) / t) / Math.PI);
}
def code(v, t): return (1.0 / ((1.0 - (v * v)) * math.sqrt((2.0 + ((v * v) * -6.0))))) * (((1.0 + (-5.0 * (v * v))) / t) / math.pi)
function code(v, t) return Float64(Float64(1.0 / Float64(Float64(1.0 - Float64(v * v)) * sqrt(Float64(2.0 + Float64(Float64(v * v) * -6.0))))) * Float64(Float64(Float64(1.0 + Float64(-5.0 * Float64(v * v))) / t) / pi)) end
function tmp = code(v, t) tmp = (1.0 / ((1.0 - (v * v)) * sqrt((2.0 + ((v * v) * -6.0))))) * (((1.0 + (-5.0 * (v * v))) / t) / pi); end
code[v_, t_] := N[(N[(1.0 / N[(N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision] * N[Sqrt[N[(2.0 + N[(N[(v * v), $MachinePrecision] * -6.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(N[(1.0 + N[(-5.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] / Pi), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\left(1 - v \cdot v\right) \cdot \sqrt{2 + \left(v \cdot v\right) \cdot -6}} \cdot \frac{\frac{1 + -5 \cdot \left(v \cdot v\right)}{t}}{\pi}
\end{array}
Initial program 99.4%
associate-*l*99.4%
associate-/r*99.3%
sub-neg99.3%
+-commutative99.3%
sqr-neg99.3%
*-commutative99.3%
distribute-rgt-neg-in99.3%
fma-def99.3%
sqr-neg99.3%
metadata-eval99.3%
Simplified99.3%
clear-num99.3%
inv-pow99.3%
*-commutative99.3%
fma-udef99.3%
associate-*l*99.3%
fma-def99.3%
Applied egg-rr99.3%
unpow-199.3%
Simplified99.3%
div-inv99.3%
associate-/l*99.4%
*-commutative99.4%
Applied egg-rr99.4%
Taylor expanded in t around 0 99.3%
associate-/r*99.3%
*-commutative99.3%
unpow299.3%
Simplified99.3%
Final simplification99.3%
(FPCore (v t) :precision binary64 (/ (+ 1.0 (* -5.0 (* v v))) (* PI (* t (* (- 1.0 (* v v)) (sqrt (* 2.0 (- 1.0 (* v (* v 3.0))))))))))
double code(double v, double t) {
return (1.0 + (-5.0 * (v * v))) / (((double) M_PI) * (t * ((1.0 - (v * v)) * sqrt((2.0 * (1.0 - (v * (v * 3.0))))))));
}
public static double code(double v, double t) {
return (1.0 + (-5.0 * (v * v))) / (Math.PI * (t * ((1.0 - (v * v)) * Math.sqrt((2.0 * (1.0 - (v * (v * 3.0))))))));
}
def code(v, t): return (1.0 + (-5.0 * (v * v))) / (math.pi * (t * ((1.0 - (v * v)) * math.sqrt((2.0 * (1.0 - (v * (v * 3.0))))))))
function code(v, t) return Float64(Float64(1.0 + Float64(-5.0 * Float64(v * v))) / Float64(pi * Float64(t * Float64(Float64(1.0 - Float64(v * v)) * sqrt(Float64(2.0 * Float64(1.0 - Float64(v * Float64(v * 3.0))))))))) end
function tmp = code(v, t) tmp = (1.0 + (-5.0 * (v * v))) / (pi * (t * ((1.0 - (v * v)) * sqrt((2.0 * (1.0 - (v * (v * 3.0)))))))); end
code[v_, t_] := N[(N[(1.0 + N[(-5.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(Pi * N[(t * N[(N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision] * N[Sqrt[N[(2.0 * N[(1.0 - N[(v * N[(v * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 + -5 \cdot \left(v \cdot v\right)}{\pi \cdot \left(t \cdot \left(\left(1 - v \cdot v\right) \cdot \sqrt{2 \cdot \left(1 - v \cdot \left(v \cdot 3\right)\right)}\right)\right)}
\end{array}
Initial program 99.4%
Simplified99.4%
Final simplification99.4%
(FPCore (v t) :precision binary64 (/ (- 1.0 (* (* v v) 5.0)) (* (- 1.0 (* v v)) (* (* t PI) (sqrt (* 2.0 (- 1.0 (* (* v v) 3.0))))))))
double code(double v, double t) {
return (1.0 - ((v * v) * 5.0)) / ((1.0 - (v * v)) * ((t * ((double) M_PI)) * sqrt((2.0 * (1.0 - ((v * v) * 3.0))))));
}
public static double code(double v, double t) {
return (1.0 - ((v * v) * 5.0)) / ((1.0 - (v * v)) * ((t * Math.PI) * Math.sqrt((2.0 * (1.0 - ((v * v) * 3.0))))));
}
def code(v, t): return (1.0 - ((v * v) * 5.0)) / ((1.0 - (v * v)) * ((t * math.pi) * math.sqrt((2.0 * (1.0 - ((v * v) * 3.0))))))
function code(v, t) return Float64(Float64(1.0 - Float64(Float64(v * v) * 5.0)) / Float64(Float64(1.0 - Float64(v * v)) * Float64(Float64(t * pi) * sqrt(Float64(2.0 * Float64(1.0 - Float64(Float64(v * v) * 3.0))))))) end
function tmp = code(v, t) tmp = (1.0 - ((v * v) * 5.0)) / ((1.0 - (v * v)) * ((t * pi) * sqrt((2.0 * (1.0 - ((v * v) * 3.0)))))); end
code[v_, t_] := N[(N[(1.0 - N[(N[(v * v), $MachinePrecision] * 5.0), $MachinePrecision]), $MachinePrecision] / N[(N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision] * N[(N[(t * Pi), $MachinePrecision] * N[Sqrt[N[(2.0 * N[(1.0 - N[(N[(v * v), $MachinePrecision] * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 - \left(v \cdot v\right) \cdot 5}{\left(1 - v \cdot v\right) \cdot \left(\left(t \cdot \pi\right) \cdot \sqrt{2 \cdot \left(1 - \left(v \cdot v\right) \cdot 3\right)}\right)}
\end{array}
Initial program 99.4%
Final simplification99.4%
(FPCore (v t) :precision binary64 (/ (/ (+ 1.0 (* -5.0 (* v v))) (* t PI)) (* (- 1.0 (* v v)) (sqrt (+ 2.0 (* (* v v) -6.0))))))
double code(double v, double t) {
return ((1.0 + (-5.0 * (v * v))) / (t * ((double) M_PI))) / ((1.0 - (v * v)) * sqrt((2.0 + ((v * v) * -6.0))));
}
public static double code(double v, double t) {
return ((1.0 + (-5.0 * (v * v))) / (t * Math.PI)) / ((1.0 - (v * v)) * Math.sqrt((2.0 + ((v * v) * -6.0))));
}
def code(v, t): return ((1.0 + (-5.0 * (v * v))) / (t * math.pi)) / ((1.0 - (v * v)) * math.sqrt((2.0 + ((v * v) * -6.0))))
function code(v, t) return Float64(Float64(Float64(1.0 + Float64(-5.0 * Float64(v * v))) / Float64(t * pi)) / Float64(Float64(1.0 - Float64(v * v)) * sqrt(Float64(2.0 + Float64(Float64(v * v) * -6.0))))) end
function tmp = code(v, t) tmp = ((1.0 + (-5.0 * (v * v))) / (t * pi)) / ((1.0 - (v * v)) * sqrt((2.0 + ((v * v) * -6.0)))); end
code[v_, t_] := N[(N[(N[(1.0 + N[(-5.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(t * Pi), $MachinePrecision]), $MachinePrecision] / N[(N[(1.0 - N[(v * v), $MachinePrecision]), $MachinePrecision] * N[Sqrt[N[(2.0 + N[(N[(v * v), $MachinePrecision] * -6.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\frac{1 + -5 \cdot \left(v \cdot v\right)}{t \cdot \pi}}{\left(1 - v \cdot v\right) \cdot \sqrt{2 + \left(v \cdot v\right) \cdot -6}}
\end{array}
Initial program 99.4%
associate-*l*99.4%
associate-/r*99.3%
sub-neg99.3%
+-commutative99.3%
sqr-neg99.3%
*-commutative99.3%
distribute-rgt-neg-in99.3%
fma-def99.3%
sqr-neg99.3%
metadata-eval99.3%
Simplified99.3%
clear-num99.3%
inv-pow99.3%
*-commutative99.3%
fma-udef99.3%
associate-*l*99.3%
fma-def99.3%
Applied egg-rr99.3%
unpow-199.3%
Simplified99.3%
Taylor expanded in t around 0 99.3%
*-commutative99.3%
unpow299.3%
Simplified99.3%
Final simplification99.3%
(FPCore (v t) :precision binary64 (/ (+ 1.0 (* -5.0 (* v v))) (* t (* PI (sqrt 2.0)))))
double code(double v, double t) {
return (1.0 + (-5.0 * (v * v))) / (t * (((double) M_PI) * sqrt(2.0)));
}
public static double code(double v, double t) {
return (1.0 + (-5.0 * (v * v))) / (t * (Math.PI * Math.sqrt(2.0)));
}
def code(v, t): return (1.0 + (-5.0 * (v * v))) / (t * (math.pi * math.sqrt(2.0)))
function code(v, t) return Float64(Float64(1.0 + Float64(-5.0 * Float64(v * v))) / Float64(t * Float64(pi * sqrt(2.0)))) end
function tmp = code(v, t) tmp = (1.0 + (-5.0 * (v * v))) / (t * (pi * sqrt(2.0))); end
code[v_, t_] := N[(N[(1.0 + N[(-5.0 * N[(v * v), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(t * N[(Pi * N[Sqrt[2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 + -5 \cdot \left(v \cdot v\right)}{t \cdot \left(\pi \cdot \sqrt{2}\right)}
\end{array}
Initial program 99.4%
Simplified99.4%
Taylor expanded in v around 0 98.7%
*-commutative98.7%
Simplified98.7%
Final simplification98.7%
(FPCore (v t) :precision binary64 (/ 1.0 (* t (* PI (sqrt 2.0)))))
double code(double v, double t) {
return 1.0 / (t * (((double) M_PI) * sqrt(2.0)));
}
public static double code(double v, double t) {
return 1.0 / (t * (Math.PI * Math.sqrt(2.0)));
}
def code(v, t): return 1.0 / (t * (math.pi * math.sqrt(2.0)))
function code(v, t) return Float64(1.0 / Float64(t * Float64(pi * sqrt(2.0)))) end
function tmp = code(v, t) tmp = 1.0 / (t * (pi * sqrt(2.0))); end
code[v_, t_] := N[(1.0 / N[(t * N[(Pi * N[Sqrt[2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{t \cdot \left(\pi \cdot \sqrt{2}\right)}
\end{array}
Initial program 99.4%
Simplified99.4%
Taylor expanded in v around 0 98.7%
*-commutative98.7%
Simplified98.7%
Final simplification98.7%
(FPCore (v t) :precision binary64 (/ (sqrt 0.5) (* t PI)))
double code(double v, double t) {
return sqrt(0.5) / (t * ((double) M_PI));
}
public static double code(double v, double t) {
return Math.sqrt(0.5) / (t * Math.PI);
}
def code(v, t): return math.sqrt(0.5) / (t * math.pi)
function code(v, t) return Float64(sqrt(0.5) / Float64(t * pi)) end
function tmp = code(v, t) tmp = sqrt(0.5) / (t * pi); end
code[v_, t_] := N[(N[Sqrt[0.5], $MachinePrecision] / N[(t * Pi), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sqrt{0.5}}{t \cdot \pi}
\end{array}
Initial program 99.4%
associate-*l*99.4%
associate-/r*99.3%
sub-neg99.3%
+-commutative99.3%
sqr-neg99.3%
*-commutative99.3%
distribute-rgt-neg-in99.3%
fma-def99.3%
sqr-neg99.3%
metadata-eval99.3%
Simplified99.3%
Taylor expanded in v around 0 98.2%
Final simplification98.2%
herbie shell --seed 2023293
(FPCore (v t)
:name "Falkner and Boettcher, Equation (20:1,3)"
:precision binary64
(/ (- 1.0 (* 5.0 (* v v))) (* (* (* PI t) (sqrt (* 2.0 (- 1.0 (* 3.0 (* v v)))))) (- 1.0 (* v v)))))