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 r10803062 = x;
        double r10803063 = r10803062 * r10803062;
        double r10803064 = 1.0;
        double r10803065 = r10803063 - r10803064;
        return r10803065;
}
↓
double f(double x) {
        double r10803066 = x;
        double r10803067 = r10803066 * r10803066;
        double r10803068 = 1.0;
        double r10803069 = r10803067 - r10803068;
        return r10803069;
}

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 2019172 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))