Average Error: 0.4 → 0.4
Time: 997.0ms
Precision: binary64
\[1 + \cos x\]
↓
\[1 + \cos x\]
1 + \cos x
↓
1 + \cos x
double code(double x) {
	return ((double) (1.0 + ((double) cos(x))));
}
↓
double code(double x) {
	return ((double) (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 0.4

    \[1 + \cos x\]

  2. Final simplification0.4

    \[\leadsto 1 + \cos x\]

Reproduce

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