Average Error: 0.0 → 0.0
Time: 633.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r200357 = x;
        double r200358 = r200357 * r200357;
        double r200359 = 1.0;
        double r200360 = r200358 - r200359;
        return r200360;
}
↓
double f(double x) {
        double r200361 = x;
        double r200362 = r200361 * r200361;
        double r200363 = 1.0;
        double r200364 = r200362 - r200363;
        return r200364;
}

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 2019209 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))