👉 In mathematics, a banded matrix is a matrix whose rows and columns are all of different lengths. This means that each row in the matrix has at least one non-zero element (i.e., it is not zero), while each column in the matrix also contains at least one non-zero element. For example, a 2x3 matrix with entries in {0,1} would have two rows and three columns, and all of them contain at least one non-zero element. In linear algebra
