Average Error: 0.0 → 0.0
Time: 481.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r191138 = x;
        double r191139 = r191138 * r191138;
        double r191140 = 1.0;
        double r191141 = r191139 - r191140;
        return r191141;
}
↓
double f(double x) {
        double r191142 = x;
        double r191143 = r191142 * r191142;
        double r191144 = 1.0;
        double r191145 = r191143 - r191144;
        return r191145;
}

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 2020100 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))