\left(\left(x \cdot x + y \cdot y\right) + y \cdot y\right) + y \cdot y
\left(\left(x \cdot x + y \cdot y\right) + y \cdot y\right) + y \cdot y
double f(double x, double y) {
double r515576 = x;
double r515577 = r515576 * r515576;
double r515578 = y;
double r515579 = r515578 * r515578;
double r515580 = r515577 + r515579;
double r515581 = r515580 + r515579;
double r515582 = r515581 + r515579;
return r515582;
}
double f(double x, double y) {
double r515583 = x;
double r515584 = r515583 * r515583;
double r515585 = y;
double r515586 = r515585 * r515585;
double r515587 = r515584 + r515586;
double r515588 = r515587 + r515586;
double r515589 = r515588 + r515586;
return r515589;
}




Bits error versus x




Bits error versus y
Results
| Original | 0.1 |
|---|---|
| Target | 0.1 |
| Herbie | 0.1 |
Initial program 0.1
Final simplification0.1
herbie shell --seed 2020064 +o rules:numerics
(FPCore (x y)
:name "Linear.Quaternion:$c/ from linear-1.19.1.3, E"
:precision binary64
:herbie-target
(+ (* x x) (* y (+ y (+ y y))))
(+ (+ (+ (* x x) (* y y)) (* y y)) (* y y)))