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 r40955 = x;
        double r40956 = y;
        double r40957 = 500.0;
        double r40958 = r40956 / r40957;
        double r40959 = r40955 + r40958;
        return r40959;
}

↓

double f(double x, double y) {
        double r40960 = x;
        double r40961 = y;
        double r40962 = 500.0;
        double r40963 = r40961 / r40962;
        double r40964 = r40960 + r40963;
        return r40964;
}

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)))