Average Error: 0.0 → 0.0
Time: 554.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r209474 = x;
        double r209475 = r209474 * r209474;
        double r209476 = 1.0;
        double r209477 = r209475 - r209476;
        return r209477;
}
↓
double f(double x) {
        double r209478 = x;
        double r209479 = r209478 * r209478;
        double r209480 = 1.0;
        double r209481 = r209479 - r209480;
        return r209481;
}

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 2019325 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))