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 r10069369 = x;
        double r10069370 = r10069369 * r10069369;
        double r10069371 = 1.0;
        double r10069372 = r10069370 - r10069371;
        return r10069372;
}
↓
double f(double x) {
        double r10069373 = x;
        double r10069374 = r10069373 * r10069373;
        double r10069375 = 1.0;
        double r10069376 = r10069374 - r10069375;
        return r10069376;
}

Error

Bits error versus x

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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 2019169 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))