Data.Random.Dice:roll from dice-0.1

Average Error: 0.0 → 0.0

Time: 338.0ms

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 r287345 = x;
        double r287346 = r287345 * r287345;
        double r287347 = 1.0;
        double r287348 = r287346 - r287347;
        return r287348;
}

↓

double f(double x) {
        double r287349 = x;
        double r287350 = r287349 * r287349;
        double r287351 = 1.0;
        double r287352 = r287350 - r287351;
        return r287352;
}

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