Data.Colour.CIE:cieLAB from colour-2.3.3, C

Average Error: 0.0 → 0.0

Time: 8.5s

Precision: 64

• Falling back on racket egraph because egg-herbie package not installed

Math

\[x + \frac{y}{500}\]

↓

\[x + \frac{y}{500}\]

C

double f(double x, double y) {
        double r521029 = x;
        double r521030 = y;
        double r521031 = 500.0;
        double r521032 = r521030 / r521031;
        double r521033 = r521029 + r521032;
        return r521033;
}

↓

double f(double x, double y) {
        double r521034 = x;
        double r521035 = y;
        double r521036 = 500.0;
        double r521037 = r521035 / r521036;
        double r521038 = r521034 + r521037;
        return r521038;
}

Error

Bits error versus x

Bits error versus y

Derivation

1. Initial program 0.0

   \[x + \frac{y}{500}\]

2. Final simplification 0.0

   \[\leadsto x + \frac{y}{500}\]

Reproduce

herbie shell --seed 2020042 
(FPCore (x y)
  :name "Data.Colour.CIE:cieLAB from colour-2.3.3, C"
  :precision binary64
  (+ x (/ y 500)))