Average Error: 0.0 → 0.0
Time: 355.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r192408 = x;
        double r192409 = r192408 * r192408;
        double r192410 = 1.0;
        double r192411 = r192409 - r192410;
        return r192411;
}
↓
double f(double x) {
        double r192412 = x;
        double r192413 = r192412 * r192412;
        double r192414 = 1.0;
        double r192415 = r192413 - r192414;
        return r192415;
}

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 2020002 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))