Average Error: 0.0 → 0.0
Time: 12.1s
Precision: 64
\[e^{re} \cdot \cos im\]
↓
\[\cos im \cdot e^{re}\]
e^{re} \cdot \cos im
↓
\cos im \cdot e^{re}
double f(double re, double im) {
        double r1716434 = re;
        double r1716435 = exp(r1716434);
        double r1716436 = im;
        double r1716437 = cos(r1716436);
        double r1716438 = r1716435 * r1716437;
        return r1716438;
}
↓
double f(double re, double im) {
        double r1716439 = im;
        double r1716440 = cos(r1716439);
        double r1716441 = re;
        double r1716442 = exp(r1716441);
        double r1716443 = r1716440 * r1716442;
        return r1716443;
}

Error

Bits error versus re

Bits error versus im

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[e^{re} \cdot \cos im\]

  2. Final simplification0.0

    \[\leadsto \cos im \cdot e^{re}\]

Reproduce

herbie shell --seed 2019163 
(FPCore (re im)
  :name "math.exp on complex, real part"
  (* (exp re) (cos im)))