\frac{\left(\frac{8}{3} \cdot \sin \left(x \cdot 0.5\right)\right) \cdot \sin \left(x \cdot 0.5\right)}{\sin x}
\begin{array}{l}
t_0 := \sin \left(x \cdot 0.5\right)\\
\left(\sqrt{2.6666666666666665} \cdot \left(\sqrt{2.6666666666666665} \cdot t_0\right)\right) \cdot \frac{t_0}{\sin x}
\end{array}
(FPCore (x) :precision binary64 (/ (* (* (/ 8.0 3.0) (sin (* x 0.5))) (sin (* x 0.5))) (sin x)))
(FPCore (x)
:precision binary64
(let* ((t_0 (sin (* x 0.5))))
(*
(* (sqrt 2.6666666666666665) (* (sqrt 2.6666666666666665) t_0))
(/ t_0 (sin x)))))double code(double x) {
return (((8.0 / 3.0) * sin((x * 0.5))) * sin((x * 0.5))) / sin(x);
}
double code(double x) {
double t_0 = sin((x * 0.5));
return (sqrt(2.6666666666666665) * (sqrt(2.6666666666666665) * t_0)) * (t_0 / sin(x));
}




Bits error versus x
Results
| Original | 14.7 |
|---|---|
| Target | 0.3 |
| Herbie | 0.4 |
Initial program 14.7
Simplified14.7
Applied *-un-lft-identity_binary6414.7
Applied times-frac_binary640.5
Simplified0.5
Applied *-un-lft-identity_binary640.5
Applied times-frac_binary640.5
Applied associate-*r*_binary640.5
Simplified0.5
Applied add-sqr-sqrt_binary640.5
Applied associate-*l*_binary640.4
Simplified0.4
Final simplification0.4
herbie shell --seed 2022125
(FPCore (x)
:name "Graphics.Rasterific.Svg.PathConverter:segmentToBezier from rasterific-svg-0.2.3.1, A"
:precision binary64
:herbie-target
(/ (/ (* 8.0 (sin (* x 0.5))) 3.0) (/ (sin x) (sin (* x 0.5))))
(/ (* (* (/ 8.0 3.0) (sin (* x 0.5))) (sin (* x 0.5))) (sin x)))