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

Average Error: 0.0 → 0.0

Time: 1.8s

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 r53947 = x;
        double r53948 = y;
        double r53949 = 500.0;
        double r53950 = r53948 / r53949;
        double r53951 = r53947 + r53950;
        return r53951;
}

↓

double f(double x, double y) {
        double r53952 = x;
        double r53953 = y;
        double r53954 = 500.0;
        double r53955 = r53953 / r53954;
        double r53956 = r53952 + r53955;
        return r53956;
}

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 2020045 +o rules:numerics
(FPCore (x y)
  :name "Data.Colour.CIE:cieLAB from colour-2.3.3, C"
  :precision binary64
  (+ x (/ y 500)))