Average Error: 0.0 → 0.0
Time: 748.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r127180 = x;
        double r127181 = r127180 * r127180;
        double r127182 = 1.0;
        double r127183 = r127181 - r127182;
        return r127183;
}
↓
double f(double x) {
        double r127184 = x;
        double r127185 = r127184 * r127184;
        double r127186 = 1.0;
        double r127187 = r127185 - r127186;
        return r127187;
}

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 2019306 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))