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 r167313 = x;
        double r167314 = r167313 * r167313;
        double r167315 = 1.0;
        double r167316 = r167314 - r167315;
        return r167316;
}
↓
double f(double x) {
        double r167317 = x;
        double r167318 = r167317 * r167317;
        double r167319 = 1.0;
        double r167320 = r167318 - r167319;
        return r167320;
}

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 2019196 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))