Average Error: 0 → 0
Time: 762.0ms
Precision: binary64
\[\frac{\sin^{-1} x - 1}{2}\]
↓
\[\frac{\sin^{-1} x - 1}{2}\]
\frac{\sin^{-1} x - 1}{2}
↓
\frac{\sin^{-1} x - 1}{2}
double code(double x) {
	return ((double) (((double) (((double) asin(x)) - 1.0)) / 2.0));
}
↓
double code(double x) {
	return ((double) (((double) (((double) asin(x)) - 1.0)) / 2.0));
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0

    \[\frac{\sin^{-1} x - 1}{2}\]

  2. Final simplification0

    \[\leadsto \frac{\sin^{-1} x - 1}{2}\]

Reproduce

herbie shell --seed 2020153 
(FPCore (x)
  :name "(/ (- (asin x) 1.0) 2.0)"
  :precision binary64
  (/ (- (asin x) 1.0) 2.0))