Finally, in order to fix on the position of nonzero lattice vector effectively, that is, to deal with zero lattice vectors effectively, the concept of significant map is introduced into.
最后为了有效确定非零格点的位置，也就是为了有效地处理零格点，又引进了重要图的概念。
2
Any TRUE if any element of a vector is a nonzero number or is logical 1 (TRUE).