Average Error: 7.9 → 7.9
Time: 614.0ms
Precision: binary64
\[\frac{a + b}{1 - a \cdot b}\]
↓
\[\frac{a + b}{1 - a \cdot b}\]
\frac{a + b}{1 - a \cdot b}
↓
\frac{a + b}{1 - a \cdot b}
double code(double a, double b) {
	return ((double) (((double) (a + b)) / ((double) (1.0 - ((double) (a * b))))));
}
↓
double code(double a, double b) {
	return ((double) (((double) (a + b)) / ((double) (1.0 - ((double) (a * b))))));
}

Error

Bits error versus a

Bits error versus b

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 7.9

    \[\frac{a + b}{1 - a \cdot b}\]

  2. Final simplification7.9

    \[\leadsto \frac{a + b}{1 - a \cdot b}\]

Reproduce

herbie shell --seed 2020153 
(FPCore (a b)
  :name "(/ (+ a b) (- 1 (* a b)))"
  :precision binary64
  (/ (+ a b) (- 1.0 (* a b))))