Average Error: 0.0 → 0.0
Time: 539.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r179709 = x;
        double r179710 = r179709 * r179709;
        double r179711 = 1.0;
        double r179712 = r179710 - r179711;
        return r179712;
}
↓
double f(double x) {
        double r179713 = x;
        double r179714 = r179713 * r179713;
        double r179715 = 1.0;
        double r179716 = r179714 - r179715;
        return r179716;
}

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 2019212 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))