Average Error: 0.0 → 0.0
Time: 628.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r157517 = x;
        double r157518 = r157517 * r157517;
        double r157519 = 1.0;
        double r157520 = r157518 - r157519;
        return r157520;
}
↓
double f(double x) {
        double r157521 = x;
        double r157522 = r157521 * r157521;
        double r157523 = 1.0;
        double r157524 = r157522 - r157523;
        return r157524;
}

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 2019305 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))