Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 320.0ms

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 r207300 = x;
        double r207301 = r207300 * r207300;
        double r207302 = 1.0;
        double r207303 = r207301 - r207302;
        return r207303;
}

↓

double f(double x) {
        double r207304 = x;
        double r207305 = r207304 * r207304;
        double r207306 = 1.0;
        double r207307 = r207305 - r207306;
        return r207307;
}

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