Average Error: 0.0 → 0.0
Time: 936.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r201984 = x;
        double r201985 = r201984 * r201984;
        double r201986 = 1.0;
        double r201987 = r201985 - r201986;
        return r201987;
}
↓
double f(double x) {
        double r201988 = x;
        double r201989 = r201988 * r201988;
        double r201990 = 1.0;
        double r201991 = r201989 - r201990;
        return r201991;
}

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 2019303 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))