Average Error: 0.0 → 0.0
Time: 15.5s
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 r38647451 = x;
        double r38647452 = y;
        double r38647453 = r38647452 * r38647452;
        double r38647454 = exp(r38647453);
        double r38647455 = r38647451 * r38647454;
        return r38647455;
}
↓
double f(double x, double y) {
        double r38647456 = y;
        double r38647457 = r38647456 * r38647456;
        double r38647458 = exp(r38647457);
        double r38647459 = x;
        double r38647460 = r38647458 * r38647459;
        return r38647460;
}

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 2019169 
(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))))