plural of secondary diagonal

(linear algebra) An element on the main diagonal of a square matrix, that is, an element in row k and column k where k is an integer between 1 and the number of rows (or columns) in the matrix.

(linear algebra) A main diagonal.

(linear algebra) The entries of a square matrix from the top left to the bottom right.

(linear algebra) A matrix in which the entries outside the main diagonal are all zero.

plural of diagonal element

plural of diagonal matrix

plural of diagonal mark

(typography) Synonym of slash as the forward slash ⟨/⟩ and sometimes also its proscribed sense inclusive of the backslash ⟨\⟩.

(category theory) A morphism from an object to the product of that object with itself, which morphism is induced by a pair of identity morphisms of the said object.