double code(double x, double y, double z) {
return x * (1.0 - ((1.0 - y) * z));
}
double code(double x, double y, double z) {
return (cbrt(x) * cbrt(x)) * ((1.0 * (cbrt(1.0 / (-1.0 / x)) * cbrt(-1.0))) + ((cbrt(1.0 / (-1.0 / x)) * (cbrt(-1.0) * z)) * (y - 1.0)));
}




Bits error versus x




Bits error versus y




Bits error versus z
Results
| Original | 3.4 |
|---|---|
| Target | 0.3 |
| Herbie | 3.3 |
Initial program 3.4
rmApplied add-cube-cbrt4.6
Applied associate-*l*4.7
Simplified4.7
Taylor expanded around -inf 34.9
Simplified3.3
Final simplification3.3
herbie shell --seed 2020338
(FPCore (x y z)
:name "Data.Colour.RGBSpace.HSV:hsv from colour-2.3.3, J"
:precision binary64
:herbie-target
(if (< (* x (- 1.0 (* (- 1.0 y) z))) -1.618195973607049e+50) (+ x (* (- 1.0 y) (* (neg z) x))) (if (< (* x (- 1.0 (* (- 1.0 y) z))) 3.892237649663903e+134) (- (* (* x y) z) (- (* x z) x)) (+ x (* (- 1.0 y) (* (neg z) x)))))
(* x (- 1.0 (* (- 1.0 y) z))))