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 r27916589 = x;
        double r27916590 = r27916589 * r27916589;
        double r27916591 = 1.0;
        double r27916592 = r27916590 - r27916591;
        return r27916592;
}
↓
double f(double x) {
        double r27916593 = x;
        double r27916594 = r27916593 * r27916593;
        double r27916595 = 1.0;
        double r27916596 = r27916594 - r27916595;
        return r27916596;
}

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 2019173 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))