Average Error: 0.0 → 0.0
Time: 617.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r171898 = x;
        double r171899 = r171898 * r171898;
        double r171900 = 1.0;
        double r171901 = r171899 - r171900;
        return r171901;
}
↓
double f(double x) {
        double r171902 = x;
        double r171903 = r171902 * r171902;
        double r171904 = 1.0;
        double r171905 = r171903 - r171904;
        return r171905;
}

Error

Bits error versus x

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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 1978988140 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))