Average Error: 0.0 → 0.0
Time: 713.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r7698850 = x;
        double r7698851 = r7698850 * r7698850;
        double r7698852 = 1.0;
        double r7698853 = r7698851 - r7698852;
        return r7698853;
}
↓
double f(double x) {
        double r7698854 = x;
        double r7698855 = r7698854 * r7698854;
        double r7698856 = 1.0;
        double r7698857 = r7698855 - r7698856;
        return r7698857;
}

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 2019172 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))