Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 302.0ms

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 r211923 = x;
        double r211924 = r211923 * r211923;
        double r211925 = 1.0;
        double r211926 = r211924 - r211925;
        return r211926;
}

↓

double f(double x) {
        double r211927 = x;
        double r211928 = r211927 * r211927;
        double r211929 = 1.0;
        double r211930 = r211928 - r211929;
        return r211930;
}

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 2020045 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))