Average Error: 0.0 → 0.0
Time: 315.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r216083 = x;
        double r216084 = r216083 * r216083;
        double r216085 = 1.0;
        double r216086 = r216084 - r216085;
        return r216086;
}
↓
double f(double x) {
        double r216087 = x;
        double r216088 = r216087 * r216087;
        double r216089 = 1.0;
        double r216090 = r216088 - r216089;
        return r216090;
}

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 2020062 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))