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.
Such was the rivalry between European powers that, in 1884 and 1885, the Berlin conference was held to map out European possession of Africa, and by 1900, over 90 percent of African territory was nominally under European control.