Average Error: 0.0 → 0.0
Time: 689.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r154421 = x;
        double r154422 = r154421 * r154421;
        double r154423 = 1.0;
        double r154424 = r154422 - r154423;
        return r154424;
}
↓
double f(double x) {
        double r154425 = x;
        double r154426 = r154425 * r154425;
        double r154427 = 1.0;
        double r154428 = r154426 - r154427;
        return r154428;
}

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 2019209 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))