Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 314.0ms

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 r73445 = x;
        double r73446 = r73445 * r73445;
        double r73447 = 1.0;
        double r73448 = r73446 - r73447;
        return r73448;
}

↓

double f(double x) {
        double r73449 = x;
        double r73450 = r73449 * r73449;
        double r73451 = 1.0;
        double r73452 = r73450 - r73451;
        return r73452;
}

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))