# Niver

$\mathbb{N}$ 0, 1, 2, 3, 4, ... or 1, 2, 3, 4, ... ..., −5, −4, −3, −2, −1, 0, 1, 2, 3, 4, 5, ... 1, 2, 3, 4, 5, ... Patrom:Frac where a and b are integers and b is not zero The limit of a convergent sequence of rational numbers a + bi where a and b are real numbers and i is the square root of −1