[Boost-commit] svn:boost r61137 - trunk/libs/numeric/ublas/doc

Subject: [Boost-commit] svn:boost r61137 - trunk/libs/numeric/ublas/doc
From: guwi17_at_[hidden]
Date: 2010-04-07 15:33:52

Author: guwi17
Date: 2010-04-07 15:33:51 EDT (Wed, 07 Apr 2010)
New Revision: 61137
URL: http://svn.boost.org/trac/boost/changeset/61137

Log:
see #3539: 

added release note and warning

Text files modified: 
   trunk/libs/numeric/ublas/doc/release_notes.htm |     9 +++++++++                               
   1 files changed, 9 insertions(+), 0 deletions(-)

Modified: trunk/libs/numeric/ublas/doc/release_notes.htm
==============================================================================
--- trunk/libs/numeric/ublas/doc/release_notes.htm	(original)
+++ trunk/libs/numeric/ublas/doc/release_notes.htm	2010-04-07 15:33:51 EDT (Wed, 07 Apr 2010)
@@ -25,6 +25,15 @@
 <ul>
 <li>[3968] fixed coordinate_matrix sort problem on MSVC10
 </li>
+<li>[3539]
+	changed computation of <code>norm_inf</code> for complex types to match
+	mathematical definition. <br />
+	<b>Note:</b> This might cause a performance drop
+	because now <code>std::abs(z)</code> is called for each vector element.
+	The old implementation used <code>std::max(std::abs(real(z)),std::abs(imag(z))</code>.
+	Further <code>norm_inf</code> and <code>norm_1</code> will now return
+	the same values for complex vector.
+</li>
 <li>[3501] Moved free functions in <code>concepts.hpp</code> into anonymous namespace.
 </li>
 </ul>