Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 363.0ms

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 r286753 = x;
        double r286754 = r286753 * r286753;
        double r286755 = 1.0;
        double r286756 = r286754 - r286755;
        return r286756;
}

↓

double f(double x) {
        double r286757 = x;
        double r286758 = r286757 * r286757;
        double r286759 = 1.0;
        double r286760 = r286758 - r286759;
        return r286760;
}

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 2019350 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))