Average Error: 0.0 → 0.0
Time: 2.7s
Precision: 64
\[{x}^{4} - {y}^{4}\]
↓
\[{x}^{4} - {y}^{4}\]
double f(double x, double y) {
        double r8953 = x;
        double r8954 = 4.0;
        double r8955 = pow(r8953, r8954);
        double r8956 = y;
        double r8957 = pow(r8956, r8954);
        double r8958 = r8955 - r8957;
        return r8958;
}
↓
double f(double x, double y) {
        double r8959 = x;
        double r8960 = 4.0;
        double r8961 = pow(r8959, r8960);
        double r8962 = y;
        double r8963 = pow(r8962, r8960);
        double r8964 = r8961 - r8963;
        return r8964;
}


{x}^{4} - {y}^{4}
↓
{x}^{4} - {y}^{4}

Error

Bits error versus x

Bits error versus y

Derivation

  1. Initial program 0.0

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

  2. Final simplification0.0

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

Reproduce

herbie shell --seed 2019101 
(FPCore (x y)
  :name "Radioactive exchange between two surfaces"
  (- (pow x 4) (pow y 4)))