Average Error: 0 → 0
Time: 763.0ms
Precision: 64
\[\tan^{-1}_* \frac{im}{re}\]
↓
\[\tan^{-1}_* \frac{im}{re}\]
\tan^{-1}_* \frac{im}{re}
↓
\tan^{-1}_* \frac{im}{re}
double f(double re, double im) {
        double r839068 = im;
        double r839069 = re;
        double r839070 = atan2(r839068, r839069);
        return r839070;
}
↓
double f(double re, double im) {
        double r839071 = im;
        double r839072 = re;
        double r839073 = atan2(r839071, r839072);
        return r839073;
}

Error

Bits error versus re

Bits error versus im

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0

    \[\tan^{-1}_* \frac{im}{re}\]

  2. Final simplification0

    \[\leadsto \tan^{-1}_* \frac{im}{re}\]

Reproduce

herbie shell --seed 2019152 +o rules:numerics
(FPCore (re im)
  :name "math.log/1 on complex, imaginary part"
  (atan2 im re))