Average Error: 0.0 → 0.0
Time: 351.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r183737 = x;
        double r183738 = r183737 * r183737;
        double r183739 = 1.0;
        double r183740 = r183738 - r183739;
        return r183740;
}
↓
double f(double x) {
        double r183741 = x;
        double r183742 = r183741 * r183741;
        double r183743 = 1.0;
        double r183744 = r183742 - r183743;
        return r183744;
}

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