Average Error: 0.0 → 0.0
Time: 314.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r197964 = x;
        double r197965 = r197964 * r197964;
        double r197966 = 1.0;
        double r197967 = r197965 - r197966;
        return r197967;
}
↓
double f(double x) {
        double r197968 = x;
        double r197969 = r197968 * r197968;
        double r197970 = 1.0;
        double r197971 = r197969 - r197970;
        return r197971;
}

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 2020062 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))