\frac{\left({x}^{2} + {\left(x + \frac{1}{3}\right)}^{2}\right) \cdot \frac{1}{3}}{2}\frac{\left({x}^{2} + {\left(x + \frac{1}{3}\right)}^{2}\right) \cdot \frac{1}{3}}{2}double code(double x) {
return ((double) (((double) (((double) (((double) pow(x, 2.0)) + ((double) pow(((double) (x + ((double) (1.0 / 3.0)))), 2.0)))) * ((double) (1.0 / 3.0)))) / 2.0));
}
double code(double x) {
return ((double) (((double) (((double) (((double) pow(x, 2.0)) + ((double) pow(((double) (x + ((double) (1.0 / 3.0)))), 2.0)))) * ((double) (1.0 / 3.0)))) / 2.0));
}



Bits error versus x
Results
Initial program 0.2
Final simplification0.2
herbie shell --seed 2020152
(FPCore (x)
:name "(/ (* (+ (pow x 2) (pow (+ x (/ 1 3)) 2)) (/ 1 3)) 2)"
:precision binary64
(/ (* (+ (pow x 2.0) (pow (+ x (/ 1.0 3.0)) 2.0)) (/ 1.0 3.0)) 2.0))