Integer linear combination
= Integer linear combination
{title2=$\sum_i n_i v_i,\quad n_i\in\mathbb Z$}
An integer linear combination is a <linear combination> whose coefficients are <integers>. The <lattice basis> definition uses unique <integer linear combinations>, rather than arbitrary real coefficients. For example, $(1,0)$ is a real <linear combination> of $(2,0)$ but is not an <integer linear combination> of that single <vector>.