Average Error: 0.0 → 0.0
Time: 312.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r202894 = x;
        double r202895 = r202894 * r202894;
        double r202896 = 1.0;
        double r202897 = r202895 - r202896;
        return r202897;
}
↓
double f(double x) {
        double r202898 = x;
        double r202899 = r202898 * r202898;
        double r202900 = 1.0;
        double r202901 = r202899 - r202900;
        return r202901;
}

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 2020039 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))