Average Error: 0.0 → 0.0
Time: 753.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r252414 = x;
        double r252415 = r252414 * r252414;
        double r252416 = 1.0;
        double r252417 = r252415 - r252416;
        return r252417;
}
↓
double f(double x) {
        double r252418 = x;
        double r252419 = r252418 * r252418;
        double r252420 = 1.0;
        double r252421 = r252419 - r252420;
        return r252421;
}

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 2020057 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))