Average Error: 0.0 → 0.0
Time: 903.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r263239 = x;
        double r263240 = r263239 * r263239;
        double r263241 = 1.0;
        double r263242 = r263240 - r263241;
        return r263242;
}
↓
double f(double x) {
        double r263243 = x;
        double r263244 = r263243 * r263243;
        double r263245 = 1.0;
        double r263246 = r263244 - r263245;
        return r263246;
}

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 2020083 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))