Average Error: 0.3 → 0.3
Time: 459.0ms
Precision: binary64
\[\frac{x \cdot \pi}{2}\]
↓
\[\frac{x \cdot \pi}{2}\]
\frac{x \cdot \pi}{2}
↓
\frac{x \cdot \pi}{2}
double code(double x) {
	return ((double) (((double) (x * ((double) M_PI))) / 2.0));
}
↓
double code(double x) {
	return ((double) (((double) (x * ((double) M_PI))) / 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 0.3

    \[\frac{x \cdot \pi}{2}\]

  2. Final simplification0.3

    \[\leadsto \frac{x \cdot \pi}{2}\]

Reproduce

herbie shell --seed 2020152 
(FPCore (x)
  :name "(/ (* x PI) 2)"
  :precision binary64
  (/ (* x PI) 2.0))