Average Error: 0.0 → 0.0
Time: 11.5s
Precision: 64
\[{x}^{4} - {y}^{4}\]
↓
\[{x}^{4} - {y}^{4}\]
{x}^{4} - {y}^{4}
↓
{x}^{4} - {y}^{4}
double f(double x, double y) {
        double r634212 = x;
        double r634213 = 4.0;
        double r634214 = pow(r634212, r634213);
        double r634215 = y;
        double r634216 = pow(r634215, r634213);
        double r634217 = r634214 - r634216;
        return r634217;
}
↓
double f(double x, double y) {
        double r634218 = x;
        double r634219 = 4.0;
        double r634220 = pow(r634218, r634219);
        double r634221 = y;
        double r634222 = pow(r634221, r634219);
        double r634223 = r634220 - r634222;
        return r634223;
}

Error

Bits error versus x

Bits error versus y

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Results

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Derivation

  1. Initial program 0.0

    \[{x}^{4} - {y}^{4}\]

  2. Final simplification0.0

    \[\leadsto {x}^{4} - {y}^{4}\]

Reproduce

herbie shell --seed 2019121 
(FPCore (x y)
  :name "Radioactive exchange between two surfaces"
  (- (pow x 4) (pow y 4)))