Average Error: 0.0 → 0.0
Time: 802.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r207765 = x;
        double r207766 = r207765 * r207765;
        double r207767 = 1.0;
        double r207768 = r207766 - r207767;
        return r207768;
}
↓
double f(double x) {
        double r207769 = x;
        double r207770 = r207769 * r207769;
        double r207771 = 1.0;
        double r207772 = r207770 - r207771;
        return r207772;
}

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 2019212 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))