Average Error: 0.0 → 0.0
Time: 880.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r14949482 = x;
        double r14949483 = r14949482 * r14949482;
        double r14949484 = 1.0;
        double r14949485 = r14949483 - r14949484;
        return r14949485;
}
↓
double f(double x) {
        double r14949486 = x;
        double r14949487 = r14949486 * r14949486;
        double r14949488 = 1.0;
        double r14949489 = r14949487 - r14949488;
        return r14949489;
}

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 2019171 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))