Average Error: 0.0 → 0.0
Time: 617.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r165688 = x;
        double r165689 = r165688 * r165688;
        double r165690 = 1.0;
        double r165691 = r165689 - r165690;
        return r165691;
}
↓
double f(double x) {
        double r165692 = x;
        double r165693 = r165692 * r165692;
        double r165694 = 1.0;
        double r165695 = r165693 - r165694;
        return r165695;
}

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))