Average Error: 0.0 → 0.0
Time: 475.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r207840 = x;
        double r207841 = r207840 * r207840;
        double r207842 = 1.0;
        double r207843 = r207841 - r207842;
        return r207843;
}
↓
double f(double x) {
        double r207844 = x;
        double r207845 = r207844 * r207844;
        double r207846 = 1.0;
        double r207847 = r207845 - r207846;
        return r207847;
}

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 2020100 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))