Average Error: 0.0 → 0.0
Time: 525.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r260143 = x;
        double r260144 = r260143 * r260143;
        double r260145 = 1.0;
        double r260146 = r260144 - r260145;
        return r260146;
}
↓
double f(double x) {
        double r260147 = x;
        double r260148 = r260147 * r260147;
        double r260149 = 1.0;
        double r260150 = r260148 - r260149;
        return r260150;
}

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 2020081 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))