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.
Share to:   The countries that attended the Berlin Conference (1884-1885) were Austria-Hungary, Belgium, Danmark, France, Germany, Great Britain, Italy, the Netherlands, Portugal, R â¦ ussia, Spain, Sweden-Norway (unified from 1814-1905), the Ottomn Empire (Turkey), and the United States of America. 63 people found this useful.