Average Error: 0.0 → 0.0
Time: 380.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r241397 = x;
        double r241398 = r241397 * r241397;
        double r241399 = 1.0;
        double r241400 = r241398 - r241399;
        return r241400;
}
↓
double f(double x) {
        double r241401 = x;
        double r241402 = r241401 * r241401;
        double r241403 = 1.0;
        double r241404 = r241402 - r241403;
        return r241404;
}

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 2020018 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))