Average Error: 0.0 → 0.0
Time: 543.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r176931 = x;
        double r176932 = r176931 * r176931;
        double r176933 = 1.0;
        double r176934 = r176932 - r176933;
        return r176934;
}
↓
double f(double x) {
        double r176935 = x;
        double r176936 = r176935 * r176935;
        double r176937 = 1.0;
        double r176938 = r176936 - r176937;
        return r176938;
}

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 2019325 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))