From: Max Weinberg (max.weinberg_at_[hidden])
Date: 2005-10-17 16:25:35
> I have a commited patch to matrix_sparse and vector_sparse. The syntax is
> slightly different but should have the same function.
after the patch there is still something wrong in ref() of matrix_sparse. Note
the "find_element (i_, i_);" <== double 'i's!, which should be (i,j) of course.