Average Error: 0.0 → 0.0
Time: 355.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r186292 = x;
        double r186293 = r186292 * r186292;
        double r186294 = 1.0;
        double r186295 = r186293 - r186294;
        return r186295;
}
↓
double f(double x) {
        double r186296 = x;
        double r186297 = r186296 * r186296;
        double r186298 = 1.0;
        double r186299 = r186297 - r186298;
        return r186299;
}

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 2020001 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))