Average Error: 0.0 → 0.0
Time: 525.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r270407 = x;
        double r270408 = r270407 * r270407;
        double r270409 = 1.0;
        double r270410 = r270408 - r270409;
        return r270410;
}
↓
double f(double x) {
        double r270411 = x;
        double r270412 = r270411 * r270411;
        double r270413 = 1.0;
        double r270414 = r270412 - r270413;
        return r270414;
}

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 2020035 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))