Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 301.0ms

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 r35624 = x;
        double r35625 = r35624 * r35624;
        double r35626 = 1.0;
        double r35627 = r35625 - r35626;
        return r35627;
}

↓

double f(double x) {
        double r35628 = x;
        double r35629 = r35628 * r35628;
        double r35630 = 1.0;
        double r35631 = r35629 - r35630;
        return r35631;
}

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))