Stretch matrix into BCR nonstandard form
[i,j] = StretchMatrix(ie,je,n,L)
row/col indices of nonxero elements of matrix
size of matrix
number of resolution levels
row/col indices of elements in nonstandard form of matrix
[ie,je,s] = find(StdForm) [i,j] = StretchMatrix(ie,je,n,L) NonStd = sparse([i,j],s,[2*n,2*n])