A square matrix is a matrix with the same number of rows and columns. An n-by-n matrix is known as a square matrix of order n. Any two square matrices of the same order can be added and multiplied. The entries aii form the main diagonal of a square matrix.
Encyclopedia of Africa. Author(s): The Berlin Conference of 1884â1885 marked the climax of the European competition for territory in Africa, a process commonly known as the Scramble for Africa.
The Berlin Conference began the process of carving up Africa, paying no attention to local culture or ethnic groups, and leaving people from the same tribe on separate sides of European-imposed borders.