Average Error: 0.0 → 0.0
Time: 312.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r174183 = x;
        double r174184 = r174183 * r174183;
        double r174185 = 1.0;
        double r174186 = r174184 - r174185;
        return r174186;
}
↓
double f(double x) {
        double r174187 = x;
        double r174188 = r174187 * r174187;
        double r174189 = 1.0;
        double r174190 = r174188 - r174189;
        return r174190;
}

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 2020018 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))