Average Error: 0.0 → 0.0
Time: 371.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r239518 = x;
        double r239519 = r239518 * r239518;
        double r239520 = 1.0;
        double r239521 = r239519 - r239520;
        return r239521;
}
↓
double f(double x) {
        double r239522 = x;
        double r239523 = r239522 * r239522;
        double r239524 = 1.0;
        double r239525 = r239523 - r239524;
        return r239525;
}

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 2019362 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))