Average Error: 0.0 → 0.0
Time: 304.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r225747 = x;
        double r225748 = r225747 * r225747;
        double r225749 = 1.0;
        double r225750 = r225748 - r225749;
        return r225750;
}
↓
double f(double x) {
        double r225751 = x;
        double r225752 = r225751 * r225751;
        double r225753 = 1.0;
        double r225754 = r225752 - r225753;
        return r225754;
}

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