Average Error: 0.0 → 0.0
Time: 807.0ms
Precision: 64
\[x \cdot x - 1.0\]
↓
\[x \cdot x - 1.0\]
x \cdot x - 1.0
↓
x \cdot x - 1.0
double f(double x) {
        double r8209369 = x;
        double r8209370 = r8209369 * r8209369;
        double r8209371 = 1.0;
        double r8209372 = r8209370 - r8209371;
        return r8209372;
}
↓
double f(double x) {
        double r8209373 = x;
        double r8209374 = r8209373 * r8209373;
        double r8209375 = 1.0;
        double r8209376 = r8209374 - r8209375;
        return r8209376;
}

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

    \[x \cdot x - 1.0\]

  2. Final simplification0.0

    \[\leadsto x \cdot x - 1.0\]

Reproduce

herbie shell --seed 2019163 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))