sion is defined as:> The process of dividing a matrix, vector, or other quantity by another under specific rules...> > Subtraction is defined as:> The process of taking a matrix, vector, or other quantity away from another under specific rules...> > Sources:> <a href="http://oxforddictionaries.com/definition/english/multiplication?q=multiplication>">http://oxforddictionaries.com/definition/english/multiplication?q=multiplication></a> > http://oxforddictionaries.com/definition/english/add