Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 303.0ms

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 r264975 = x;
        double r264976 = r264975 * r264975;
        double r264977 = 1.0;
        double r264978 = r264976 - r264977;
        return r264978;
}

↓

double f(double x) {
        double r264979 = x;
        double r264980 = r264979 * r264979;
        double r264981 = 1.0;
        double r264982 = r264980 - r264981;
        return r264982;
}

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 2020047 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))