Average Error: 0.0 → 0.0
Time: 901.0ms
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 r12897472 = x;
        double r12897473 = r12897472 * r12897472;
        double r12897474 = 1.0;
        double r12897475 = r12897473 - r12897474;
        return r12897475;
}
↓
double f(double x) {
        double r12897476 = x;
        double r12897477 = r12897476 * r12897476;
        double r12897478 = 1.0;
        double r12897479 = r12897477 - r12897478;
        return r12897479;
}

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 2019163 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))