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




Bits error versus x
Results
| Original | 14.6 |
|---|---|
| Target | 0.3 |
| Herbie | 0.4 |
Initial program 14.6
Simplified14.6
rmApplied *-un-lft-identity_binary64_1917414.6
Applied times-frac_binary64_191800.5
Simplified0.5
rmApplied associate-/l*_binary64_191190.5
rmApplied *-un-lft-identity_binary64_191740.5
Applied add-sqr-sqrt_binary64_191960.5
Applied times-frac_binary64_191800.5
Applied associate-*r*_binary64_191140.4
Final simplification0.4
herbie shell --seed 2021027
(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)))