%ISTRIL  Determine whether a gpuArray matrix is lower triangular.
%   ISTRIL(X)
%   
%   Example:
%    
%      X = gpuArray(tril(magic(1000)));
%      istril(X)
%   
%   See also ISTRIL, TRIL, MAGIC, GPUARRAY.
%   


%   Copyright 2014 The MathWorks, Inc.

