Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 327.0ms

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 r194052 = x;
        double r194053 = r194052 * r194052;
        double r194054 = 1.0;
        double r194055 = r194053 - r194054;
        return r194055;
}

↓

double f(double x) {
        double r194056 = x;
        double r194057 = r194056 * r194056;
        double r194058 = 1.0;
        double r194059 = r194057 - r194058;
        return r194059;
}

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 2020047 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))