Average Error: 14.5 → 0.0
Time: 1.5s
Precision: binary64
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double code(double x, double y) {
	return ((double) (((double) (x - y)) / ((double) (((double) (x * 2.0)) * y))));
}
double code(double x, double y) {
	return ((double) (((double) (0.5 / y)) - ((double) (0.5 / x))));
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original14.5
Target0.0
Herbie0.0
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Derivation

  1. Initial program 14.5

    \[\]
  2. Taylor expanded around 0 0.0

    \[\leadsto \]
  3. Simplified0.0

    \[\leadsto \]
  4. Final simplification0.0

    \[\leadsto \]

Reproduce

herbie shell --seed 2020191 
(FPCore (x y)
  :name "Linear.Projection:inversePerspective from linear-1.19.1.3, B"
  :precision binary64

  :herbie-target
  (- (/ 0.5 y) (/ 0.5 x))

  (/ (- x y) (* (* x 2.0) y)))