Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 312.0ms

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 r218059 = x;
        double r218060 = r218059 * r218059;
        double r218061 = 1.0;
        double r218062 = r218060 - r218061;
        return r218062;
}

↓

double f(double x) {
        double r218063 = x;
        double r218064 = r218063 * r218063;
        double r218065 = 1.0;
        double r218066 = r218064 - r218065;
        return r218066;
}

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