Average Error: 0.0 → 0.0
Time: 1.1s
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 r10612436 = x;
        double r10612437 = r10612436 * r10612436;
        double r10612438 = 1.0;
        double r10612439 = r10612437 - r10612438;
        return r10612439;
}
↓
double f(double x) {
        double r10612440 = x;
        double r10612441 = r10612440 * r10612440;
        double r10612442 = 1.0;
        double r10612443 = r10612441 - r10612442;
        return r10612443;
}

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 2019158 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))