subdiagonal

Said of an entry of a square matrix: that it lies anywhere in the lower triangular area below the main diagonal of the matrix.

Adjective

  1. Said of an entry of a square matrix: that it lies anywhere in the lower triangular area below the main diagonal of the matrix.
    • (3) From R, we obtain the set of points #92;mathbb#123;R#125;#92;tbinom#123;n#125;#123;2#125; whose coordinates are the subdiagonal entries of the corresponding matrices: - 2010, Martin Aigner with Günter M. Ziegler,...

Origin

From sub- + diagonal.

Noun

  1. The diagonal of a matrix that lies directly below and to the left of the main diagonal.

Forms

subdiagonals