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.
Recognizing DuBoisâs historic contribution to the Pan-African movement, delegates named him president of the 1945 congress. The Manchester meeting marked a turning point in the history of the gatherings. For the first time representatives of political parties from Africa and the West Indies attended the meetings.