Average Error: 30.0 → 30.0
Time: 1.6s
Precision: binary64
\[\cos \left(x + 1\right) - \cos x\]
↓
\[\cos \left(x + 1\right) - \cos x\]
\cos \left(x + 1\right) - \cos x
↓
\cos \left(x + 1\right) - \cos x
double code(double x) {
	return ((double) (((double) cos(((double) (x + 1.0)))) - ((double) cos(x))));
}
↓
double code(double x) {
	return ((double) (((double) cos(((double) (x + 1.0)))) - ((double) cos(x))));
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 30.0

    \[\cos \left(x + 1\right) - \cos x\]

  2. Final simplification30.0

    \[\leadsto \cos \left(x + 1\right) - \cos x\]

Reproduce

herbie shell --seed 2020153 
(FPCore (x)
  :name "(- (cos (+ x 1)) (cos x))"
  :precision binary64
  (- (cos (+ x 1.0)) (cos x)))