Average Error: 0.0 → 0.0
Time: 647.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r18218 = x;
        double r18219 = r18218 * r18218;
        double r18220 = 1.0;
        double r18221 = r18219 - r18220;
        return r18221;
}
↓
double f(double x) {
        double r18222 = x;
        double r18223 = r18222 * r18222;
        double r18224 = 1.0;
        double r18225 = r18223 - r18224;
        return r18225;
}

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 2019310 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))