Average Error: 0.0 → 0.0
Time: 325.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r200297 = x;
        double r200298 = r200297 * r200297;
        double r200299 = 1.0;
        double r200300 = r200298 - r200299;
        return r200300;
}
↓
double f(double x) {
        double r200301 = x;
        double r200302 = r200301 * r200301;
        double r200303 = 1.0;
        double r200304 = r200302 - r200303;
        return r200304;
}

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 2020064 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))