Average Error: 0.0 → 0.0
Time: 698.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r18117 = x;
        double r18118 = r18117 * r18117;
        double r18119 = 1.0;
        double r18120 = r18118 - r18119;
        return r18120;
}
↓
double f(double x) {
        double r18121 = x;
        double r18122 = r18121 * r18121;
        double r18123 = 1.0;
        double r18124 = r18122 - r18123;
        return r18124;
}

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 2019310 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))