Average Error: 0.0 → 0.0
Time: 661.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r182739 = x;
        double r182740 = r182739 * r182739;
        double r182741 = 1.0;
        double r182742 = r182740 - r182741;
        return r182742;
}
↓
double f(double x) {
        double r182743 = x;
        double r182744 = r182743 * r182743;
        double r182745 = 1.0;
        double r182746 = r182744 - r182745;
        return r182746;
}

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 2019308 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))