Average Error: 0.0 → 0.0
Time: 359.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r250194 = x;
        double r250195 = r250194 * r250194;
        double r250196 = 1.0;
        double r250197 = r250195 - r250196;
        return r250197;
}
↓
double f(double x) {
        double r250198 = x;
        double r250199 = r250198 * r250198;
        double r250200 = 1.0;
        double r250201 = r250199 - r250200;
        return r250201;
}

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 2019354 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))