\sqrt{\left(x + \frac{\sqrt{3}}{27}\right) \cdot \left(x - \frac{\sqrt{3}}{27}\right)}\sqrt{\left(x + \frac{\sqrt{3}}{27}\right) \cdot \left(x - \frac{\sqrt{3}}{27}\right)}double code(double x) {
return ((double) sqrt(((double) (((double) (x + ((double) (((double) sqrt(3.0)) / 27.0)))) * ((double) (x - ((double) (((double) sqrt(3.0)) / 27.0))))))));
}
double code(double x) {
return ((double) sqrt(((double) (((double) (x + ((double) (((double) sqrt(3.0)) / 27.0)))) * ((double) (x - ((double) (((double) sqrt(3.0)) / 27.0))))))));
}



Bits error versus x
Results
Initial program 32.0
Final simplification32.0
herbie shell --seed 2020153
(FPCore (x)
:name "(sqrt (* (+ x (/ (sqrt 3) 27)) (- x (/ (sqrt 3) 27))))"
:precision binary64
(sqrt (* (+ x (/ (sqrt 3.0) 27.0)) (- x (/ (sqrt 3.0) 27.0)))))