Average Error: 0.0 → 0.0
Time: 578.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r220991 = x;
        double r220992 = r220991 * r220991;
        double r220993 = 1.0;
        double r220994 = r220992 - r220993;
        return r220994;
}
↓
double f(double x) {
        double r220995 = x;
        double r220996 = r220995 * r220995;
        double r220997 = 1.0;
        double r220998 = r220996 - r220997;
        return r220998;
}

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 2020034 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))