tril
- tril(X) returns the lower triangular matrix of X
- tril(X,k) returns the elements of X, on and below its k-th diagonal
Examples
> X = ones(3) [X:3x3 double] > tril(X)# 1 0 0 1 1 0 1 1 1 > tril(X,-1)# 0 0 0 1 0 0 1 1 0 > tril(X, 1)# 1 1 0 1 1 1 1 1 1