logical matrix
matrix with entries from the Boolean domain B = {0, 1}
matrix of ones
matrix where every element is equal to one
perfect matrix
an m-by-n binary matrix that has no possible k-by-k submatrix K
zero matrix
matrix whose entries are all 0
matrix unit
matrix where a single element is one and the rest of the elements are zeroes
permutation matrix
matrices representing permutation of vector elements; with exactly one 1 per row and column