Average Error: 10.7 → 0.2
Time: 31.0s
Precision: 64
\[\frac{x}{y \cdot y}\]
↓
\[\frac{\frac{x}{y}}{y}\]
\frac{x}{y \cdot y}
↓
\frac{\frac{x}{y}}{y}
double f(double x, double y) {
        double r14608000 = x;
        double r14608001 = y;
        double r14608002 = r14608001 * r14608001;
        double r14608003 = r14608000 / r14608002;
        return r14608003;
}
↓
double f(double x, double y) {
        double r14608004 = x;
        double r14608005 = y;
        double r14608006 = r14608004 / r14608005;
        double r14608007 = r14608006 / r14608005;
        return r14608007;
}

Error

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Bits error versus y

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Results

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Target

Original10.7
Target0.2
Herbie0.2
\[\frac{\frac{x}{y}}{y}\]

Derivation

  1. Initial program 10.7

    \[\frac{x}{y \cdot y}\]
  2. Using strategy rm

  3. Applied associate-/r*0.2

    \[\leadsto \color{blue}{\frac{\frac{x}{y}}{y}}\]

  4. Final simplification0.2

    \[\leadsto \frac{\frac{x}{y}}{y}\]

Reproduce

herbie shell --seed 2019165 
(FPCore (x y)
  :name "Physics.ForceLayout:coulombForce from force-layout-0.4.0.2"

  :herbie-target
  (/ (/ x y) y)

  (/ x (* y y)))