Average Error: 0.0 → 0.0
Time: 485.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r176078 = x;
        double r176079 = r176078 * r176078;
        double r176080 = 1.0;
        double r176081 = r176079 - r176080;
        return r176081;
}
↓
double f(double x) {
        double r176082 = x;
        double r176083 = r176082 * r176082;
        double r176084 = 1.0;
        double r176085 = r176083 - r176084;
        return r176085;
}

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 2020034 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))