Average Error: 0.0 → 0.0
Time: 5.9s
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r172818 = x;
        double r172819 = r172818 * r172818;
        double r172820 = 1.0;
        double r172821 = r172819 - r172820;
        return r172821;
}
↓
double f(double x) {
        double r172822 = x;
        double r172823 = r172822 * r172822;
        double r172824 = 1.0;
        double r172825 = r172823 - r172824;
        return r172825;
}

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 2019323 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))