Average Error: 0.0 → 0.0
Time: 354.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r197488 = x;
        double r197489 = r197488 * r197488;
        double r197490 = 1.0;
        double r197491 = r197489 - r197490;
        return r197491;
}
↓
double f(double x) {
        double r197492 = x;
        double r197493 = r197492 * r197492;
        double r197494 = 1.0;
        double r197495 = r197493 - r197494;
        return r197495;
}

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 2020001 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))