Average Error: 0.0 → 0.0
Time: 301.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r200394 = x;
        double r200395 = r200394 * r200394;
        double r200396 = 1.0;
        double r200397 = r200395 - r200396;
        return r200397;
}
↓
double f(double x) {
        double r200398 = x;
        double r200399 = r200398 * r200398;
        double r200400 = 1.0;
        double r200401 = r200399 - r200400;
        return r200401;
}

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 2020056 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))