Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 299.0ms

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 r191341 = x;
        double r191342 = r191341 * r191341;
        double r191343 = 1.0;
        double r191344 = r191342 - r191343;
        return r191344;
}

↓

double f(double x) {
        double r191345 = x;
        double r191346 = r191345 * r191345;
        double r191347 = 1.0;
        double r191348 = r191346 - r191347;
        return r191348;
}

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))