Lower-triangular matrix | Article about Lower-triangular matrix by The Free Dictionary
triangular matrix (redirected from Lower-triangular matrix)
triangular matrix[trī′aŋ·gyə·lər ′mā·triks]
A matrix where either all entries above or all entries below the principal diagonal are zero.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
The difference to the previous sampling scheme for ST is that we now condition on [[SIGMA].sup.T] and are interested in sampling the free elements of the lower-triangular matrix
(Continued) After applying Tarjan's algorithm to obtain a block lower-triangular matrix
for our example, we have the permutation vector [[1 3 2 4 5 6].sup.T].
Here we choose to solve the algebraic problem in equation (5.1) with an iterative solution method preconditioned by a block lower-triangular matrix