Average Error: 0.0 → 0.0
Time: 640.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r144404 = x;
        double r144405 = r144404 * r144404;
        double r144406 = 1.0;
        double r144407 = r144405 - r144406;
        return r144407;
}
↓
double f(double x) {
        double r144408 = x;
        double r144409 = r144408 * r144408;
        double r144410 = 1.0;
        double r144411 = r144409 - r144410;
        return r144411;
}

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 2019208 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))