]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
SparseMatrix::el
authorwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Mon, 5 Jun 2000 14:18:55 +0000 (14:18 +0000)
committerwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Mon, 5 Jun 2000 14:18:55 +0000 (14:18 +0000)
git-svn-id: https://svn.dealii.org/trunk@2992 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/doc/news/2000/c-3-0.html

index afb35d0ab46905719249553c69a1a30a73d6d2b1..0d51eafc68465d32e0de3a5e507d4444a66e90ab 100644 (file)
 <h3>lac</h3>
 
 <ol>
+  <li> <p>
+       New: there is now a function
+       <code class="member">SparseMatrix::el</code> that does mostly
+       the same as <code class="member">SparseMatrix::operator()</code>,
+       but returns a zero if elements of the matrix are accessed that
+       are not in the sparsity pattern. Thus, the new function allows
+       to actually traverse rows or columns of the matrix without
+       taking care of the sparsity pattern, while
+       <code class="member">SparseMatrix::operator()</code> should be
+       used to write algorithms more efficiently.
+       <br>
+       (WB 2000/06/02)
+       </p>
+
   <li> <p>
        Fix: 
        <code class="member">SparsityPattern::print_gnuplot</code>

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