Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 316.0ms

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 r256676 = x;
        double r256677 = r256676 * r256676;
        double r256678 = 1.0;
        double r256679 = r256677 - r256678;
        return r256679;
}

↓

double f(double x) {
        double r256680 = x;
        double r256681 = r256680 * r256680;
        double r256682 = 1.0;
        double r256683 = r256681 - r256682;
        return r256683;
}

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))