Average Error: 0.0 → 0.0
Time: 365.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r245664 = x;
        double r245665 = r245664 * r245664;
        double r245666 = 1.0;
        double r245667 = r245665 - r245666;
        return r245667;
}
↓
double f(double x) {
        double r245668 = x;
        double r245669 = r245668 * r245668;
        double r245670 = 1.0;
        double r245671 = r245669 - r245670;
        return r245671;
}

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 2020001 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))