Average Error: 0.0 → 0.0
Time: 321.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r217618 = x;
        double r217619 = r217618 * r217618;
        double r217620 = 1.0;
        double r217621 = r217619 - r217620;
        return r217621;
}
↓
double f(double x) {
        double r217622 = x;
        double r217623 = r217622 * r217622;
        double r217624 = 1.0;
        double r217625 = r217623 - r217624;
        return r217625;
}

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 2020060 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))