Average Error: 0.0 → 0.0
Time: 471.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r206808 = x;
        double r206809 = r206808 * r206808;
        double r206810 = 1.0;
        double r206811 = r206809 - r206810;
        return r206811;
}
↓
double f(double x) {
        double r206812 = x;
        double r206813 = r206812 * r206812;
        double r206814 = 1.0;
        double r206815 = r206813 - r206814;
        return r206815;
}

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 2020081 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))