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+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7)
+ * Copyright (C) 2011 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
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+ * Jalview is free software: you can redistribute it and/or
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<head><title>Tree Calculation</title></head>
<body>
<p><strong>Calculation of trees from alignments</strong></p>
<p>Trees are calculated on either the complete alignment, or just the
currently selected group of sequences, using the functions in the
-<strong>Calculate→Calculate tree</strong> submenu. There are
+<strong>Calculate→Calculate tree</strong> submenu.
+Once calculated, trees are displayed in a new <a
+href="../calculations/treeviewer.html">tree viewing window</a>. There are
four different calculations, using one of two distance measures and
constructing the tree from one of two algorithms :
</p>