Average Error: 0.0 → 0.0
Time: 350.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r213827 = x;
        double r213828 = r213827 * r213827;
        double r213829 = 1.0;
        double r213830 = r213828 - r213829;
        return r213830;
}
↓
double f(double x) {
        double r213831 = x;
        double r213832 = r213831 * r213831;
        double r213833 = 1.0;
        double r213834 = r213832 - r213833;
        return r213834;
}

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 2019354 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))