Average Error: 0.0 → 0.0
Time: 1.1s
Precision: binary64
\[\frac{x - y}{x + y}\]
↓
\[\frac{x - y}{x + y}\]
\frac{x - y}{x + y}
↓
\frac{x - y}{x + y}
(FPCore (x y) :precision binary64 (/ (- x y) (+ x y)))
↓
(FPCore (x y) :precision binary64 (/ (- x y) (+ x y)))
double code(double x, double y) {
	return (((double) (x - y)) / ((double) (x + y)));
}
↓
double code(double x, double y) {
	return (((double) (x - y)) / ((double) (x + y)));
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0.0
Target0.0
Herbie0.0
\[\frac{x}{x + y} - \frac{y}{x + y}\]

Derivation

  1. Initial program Error: 0.0 bits

    \[\frac{x - y}{x + y}\]

  2. Final simplificationError: 0.0 bits

    \[\leadsto \frac{x - y}{x + y}\]

Reproduce

herbie shell --seed 2020204 
(FPCore (x y)
  :name "Data.Colour.RGB:hslsv from colour-2.3.3, D"
  :precision binary64

  :herbie-target
  (- (/ x (+ x y)) (/ y (+ x y)))

  (/ (- x y) (+ x y)))