Average Error: 0.0 → 0.0
Time: 765.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r198719 = x;
        double r198720 = r198719 * r198719;
        double r198721 = 1.0;
        double r198722 = r198720 - r198721;
        return r198722;
}
↓
double f(double x) {
        double r198723 = x;
        double r198724 = r198723 * r198723;
        double r198725 = 1.0;
        double r198726 = r198724 - r198725;
        return r198726;
}

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 2020025 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))