Average Error: 2.9 → 2.9
Time: 4.3s
Precision: binary64
\[{\left(\cos x\right)}^{y}\]
↓
\[{\left(\cos x\right)}^{y}\]
{\left(\cos x\right)}^{y}
↓
{\left(\cos x\right)}^{y}
double code(double x, double y) {
	return ((double) pow(((double) cos(x)), y));
}
↓
double code(double x, double y) {
	return ((double) pow(((double) cos(x)), y));
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 2.9

    \[{\left(\cos x\right)}^{y}\]

  2. Final simplification2.9

    \[\leadsto {\left(\cos x\right)}^{y}\]

Reproduce

herbie shell --seed 2020152 
(FPCore (x y)
  :name "(pow (cos x) y)"
  :precision binary64
  (pow (cos x) y))