Average Error: 0.0 → 0.0
Time: 651.0ms
Precision: 64
\[x \cdot x - 1.0\]
↓
\[x \cdot x - 1.0\]
x \cdot x - 1.0
↓
x \cdot x - 1.0
double f(double x) {
        double r13162495 = x;
        double r13162496 = r13162495 * r13162495;
        double r13162497 = 1.0;
        double r13162498 = r13162496 - r13162497;
        return r13162498;
}
↓
double f(double x) {
        double r13162499 = x;
        double r13162500 = r13162499 * r13162499;
        double r13162501 = 1.0;
        double r13162502 = r13162500 - r13162501;
        return r13162502;
}

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

    \[x \cdot x - 1.0\]

  2. Final simplification0.0

    \[\leadsto x \cdot x - 1.0\]

Reproduce

herbie shell --seed 2019168 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))