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 r166265 = x;
        double r166266 = r166265 * r166265;
        double r166267 = 1.0;
        double r166268 = r166266 - r166267;
        return r166268;
}
↓
double f(double x) {
        double r166269 = x;
        double r166270 = r166269 * r166269;
        double r166271 = 1.0;
        double r166272 = r166270 - r166271;
        return r166272;
}

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 2020020 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))