<ol>
<li>
<p>
- New: The function DoFTools::make_zero_boundary_constraints() applies
- zero boundary constraints to a (symmetric preserved) matrix without
- accessing the sparsity pattern. Use cases are for when the sparsity pattern
- of the matrix is unknown / inaccessible.
+ New: The function DoFTools::make_zero_boundary_constraints() computes the
+ constraints that result from requiring the degrees of freedom at the
+ boundary to be zero. This allos to apply zero boundary constraints to
+ a matrix in the same way as other constraints, rather than going
+ through the MatrixTools::apply_boundary_values function.
<br>
(Toby D. Young 2008/12/04)
</p>
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