Average Error: 0.0 → 0.0
Time: 453.0ms
Precision: binary64
\[1 - \frac{2}{x + 1}\]
↓
\[1 - \frac{2}{x + 1}\]
1 - \frac{2}{x + 1}
↓
1 - \frac{2}{x + 1}
double code(double x) {
	return ((double) (1.0 - ((double) (2.0 / ((double) (x + 1.0))))));
}
↓
double code(double x) {
	return ((double) (1.0 - ((double) (2.0 / ((double) (x + 1.0))))));
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[1 - \frac{2}{x + 1}\]

  2. Final simplification0.0

    \[\leadsto 1 - \frac{2}{x + 1}\]

Reproduce

herbie shell --seed 2020152 
(FPCore (x)
  :name "(- 1 (/ 2 (+ x 1)))"
  :precision binary64
  (- 1.0 (/ 2.0 (+ x 1.0))))