Average Error: 0.0 → 0.0
Time: 35.4s
Precision: 64
\[e^{re} \cdot \cos im\]
↓
\[e^{re} \cdot \cos im\]
e^{re} \cdot \cos im
↓
e^{re} \cdot \cos im
double f(double re, double im) {
        double r35138 = re;
        double r35139 = exp(r35138);
        double r35140 = im;
        double r35141 = cos(r35140);
        double r35142 = r35139 * r35141;
        return r35142;
}
↓
double f(double re, double im) {
        double r35143 = re;
        double r35144 = exp(r35143);
        double r35145 = im;
        double r35146 = cos(r35145);
        double r35147 = r35144 * r35146;
        return r35147;
}

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 0.0

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

  2. Final simplification0.0

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

Reproduce

herbie shell --seed 2019202 
(FPCore (re im)
  :name "math.exp on complex, real part"
  (* (exp re) (cos im)))