Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 318.0ms

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 r311800 = x;
        double r311801 = r311800 * r311800;
        double r311802 = 1.0;
        double r311803 = r311801 - r311802;
        return r311803;
}

↓

double f(double x) {
        double r311804 = x;
        double r311805 = r311804 * r311804;
        double r311806 = 1.0;
        double r311807 = r311805 - r311806;
        return r311807;
}

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