Average Error: 0.0 → 0.0
Time: 725.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r156133 = x;
        double r156134 = r156133 * r156133;
        double r156135 = 1.0;
        double r156136 = r156134 - r156135;
        return r156136;
}
↓
double f(double x) {
        double r156137 = x;
        double r156138 = r156137 * r156137;
        double r156139 = 1.0;
        double r156140 = r156138 - r156139;
        return r156140;
}

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 2019174 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))