Average Error: 0.0 → 0.0
Time: 1.1s
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r184025 = x;
        double r184026 = r184025 * r184025;
        double r184027 = 1.0;
        double r184028 = r184026 - r184027;
        return r184028;
}
↓
double f(double x) {
        double r184029 = x;
        double r184030 = r184029 * r184029;
        double r184031 = 1.0;
        double r184032 = r184030 - r184031;
        return r184032;
}

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 2019199 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))