Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 320.0ms

Precision: 64

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

Math

\[x \cdot x - 1\]

↓

\[x \cdot x - 1\]

C

double f(double x) {
        double r267706 = x;
        double r267707 = r267706 * r267706;
        double r267708 = 1.0;
        double r267709 = r267707 - r267708;
        return r267709;
}

↓

double f(double x) {
        double r267710 = x;
        double r267711 = r267710 * r267710;
        double r267712 = 1.0;
        double r267713 = r267711 - r267712;
        return r267713;
}

Error

Bits error versus x

Derivation

1. Initial program 0.0

   \[x \cdot x - 1\]

2. Final simplification 0.0

   \[\leadsto x \cdot x - 1\]

Reproduce

herbie shell --seed 2020042 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))