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 r295354 = x;
        double r295355 = r295354 * r295354;
        double r295356 = 1.0;
        double r295357 = r295355 - r295356;
        return r295357;
}

↓

double f(double x) {
        double r295358 = x;
        double r295359 = r295358 * r295358;
        double r295360 = 1.0;
        double r295361 = r295359 - r295360;
        return r295361;
}

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))