Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 331.0ms

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 r302611 = x;
        double r302612 = r302611 * r302611;
        double r302613 = 1.0;
        double r302614 = r302612 - r302613;
        return r302614;
}

↓

double f(double x) {
        double r302615 = x;
        double r302616 = r302615 * r302615;
        double r302617 = 1.0;
        double r302618 = r302616 - r302617;
        return r302618;
}

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 2020046 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))