Average Error: 0.0 → 0.0
Time: 689.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r208836 = x;
        double r208837 = r208836 * r208836;
        double r208838 = 1.0;
        double r208839 = r208837 - r208838;
        return r208839;
}
↓
double f(double x) {
        double r208840 = x;
        double r208841 = r208840 * r208840;
        double r208842 = 1.0;
        double r208843 = r208841 - r208842;
        return r208843;
}

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 2019294 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))