Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 307.0ms

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 r335484 = x;
        double r335485 = r335484 * r335484;
        double r335486 = 1.0;
        double r335487 = r335485 - r335486;
        return r335487;
}

↓

double f(double x) {
        double r335488 = x;
        double r335489 = r335488 * r335488;
        double r335490 = 1.0;
        double r335491 = r335489 - r335490;
        return r335491;
}

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))