Average Error: 0.0 → 0.0
Time: 298.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r260219 = x;
        double r260220 = r260219 * r260219;
        double r260221 = 1.0;
        double r260222 = r260220 - r260221;
        return r260222;
}
↓
double f(double x) {
        double r260223 = x;
        double r260224 = r260223 * r260223;
        double r260225 = 1.0;
        double r260226 = r260224 - r260225;
        return r260226;
}

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 2020056 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))