Compare returns an integer comparing two arrays/vectors lexicographically.

L1Norm returns l1 distance to origin.

L2Norm returns l2 distance to origin.

NormalizeGonumVector normalizes a vector in place.

SubArrayFromLeft Slice from left to right, starting from 0.

SubArrayFromLeftWithLength Cut the slice with length from left to right, starting from 0.

SubArrayFromRight Cut slices from right to left, starting from 1.

SubArrayFromRightWithLength From right to left, cut the slice with length from 1.