Average Error: 0.0 → 0.0
Time: 763.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r119684 = x;
        double r119685 = r119684 * r119684;
        double r119686 = 1.0;
        double r119687 = r119685 - r119686;
        return r119687;
}
↓
double f(double x) {
        double r119688 = x;
        double r119689 = r119688 * r119688;
        double r119690 = 1.0;
        double r119691 = r119689 - r119690;
        return r119691;
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[x \cdot x - 1\]

  2. Final simplification0.0

    \[\leadsto x \cdot x - 1\]

Reproduce

herbie shell --seed 2019306 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))