Average Error: 0.0 → 0.0
Time: 776.0ms
Precision: binary64
\[\frac{\cos^{-1} x}{\pi}\]
↓
\[\frac{\cos^{-1} x}{\pi}\]
\frac{\cos^{-1} x}{\pi}
↓
\frac{\cos^{-1} x}{\pi}
double code(double x) {
	return ((double) (((double) acos(x)) / ((double) M_PI)));
}
↓
double code(double x) {
	return ((double) (((double) acos(x)) / ((double) M_PI)));
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[\frac{\cos^{-1} x}{\pi}\]

  2. Final simplification0.0

    \[\leadsto \frac{\cos^{-1} x}{\pi}\]

Reproduce

herbie shell --seed 2020152 
(FPCore (x)
  :name "(/ (acos x) PI)"
  :precision binary64
  (/ (acos x) PI))