Average Error: 0.0 → 0.0
Time: 5.7s
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r136285 = x;
        double r136286 = r136285 * r136285;
        double r136287 = 1.0;
        double r136288 = r136286 - r136287;
        return r136288;
}
↓
double f(double x) {
        double r136289 = x;
        double r136290 = r136289 * r136289;
        double r136291 = 1.0;
        double r136292 = r136290 - r136291;
        return r136292;
}

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 2019323 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))