Average Error: 0.0 → 0.0
Time: 862.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r18883 = x;
        double r18884 = r18883 * r18883;
        double r18885 = 1.0;
        double r18886 = r18884 - r18885;
        return r18886;
}
↓
double f(double x) {
        double r18887 = x;
        double r18888 = r18887 * r18887;
        double r18889 = 1.0;
        double r18890 = r18888 - r18889;
        return r18890;
}

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 2019315 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))