Average Error: 0.0 → 0.0
Time: 670.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r11585772 = x;
        double r11585773 = r11585772 * r11585772;
        double r11585774 = 1.0;
        double r11585775 = r11585773 - r11585774;
        return r11585775;
}
↓
double f(double x) {
        double r11585776 = x;
        double r11585777 = r11585776 * r11585776;
        double r11585778 = 1.0;
        double r11585779 = r11585777 - r11585778;
        return r11585779;
}

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 2019169 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))