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 Casablanca Conference took place just two months after the Anglo-American landings in French North Africa in November 1942. At this meeting, Roosevelt and Churchill focused on coordinating Allied military strategy against the Axis powers over the course of the coming year.