Average Error: 0.0 → 0.0
Time: 14.6s
Precision: 64
\[x \cdot e^{y \cdot y}\]
\[e^{y \cdot y} \cdot x\]
x \cdot e^{y \cdot y}
e^{y \cdot y} \cdot x
double f(double x, double y) {
        double r40560480 = x;
        double r40560481 = y;
        double r40560482 = r40560481 * r40560481;
        double r40560483 = exp(r40560482);
        double r40560484 = r40560480 * r40560483;
        return r40560484;
}

double f(double x, double y) {
        double r40560485 = y;
        double r40560486 = r40560485 * r40560485;
        double r40560487 = exp(r40560486);
        double r40560488 = x;
        double r40560489 = r40560487 * r40560488;
        return r40560489;
}

Error

Bits error versus x

Bits error versus y

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Results

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Target

Original0.0
Target0.0
Herbie0.0
\[x \cdot {\left(e^{y}\right)}^{y}\]

Derivation

  1. Initial program 0.0

    \[x \cdot e^{y \cdot y}\]
  2. Final simplification0.0

    \[\leadsto e^{y \cdot y} \cdot x\]

Reproduce

herbie shell --seed 2019172 
(FPCore (x y)
  :name "Data.Number.Erf:$dmerfcx from erf-2.0.0.0"

  :herbie-target
  (* x (pow (exp y) y))

  (* x (exp (* y y))))