From 96596009c556948e9007efeefad69320c0055920 Mon Sep 17 00:00:00 2001
From: Lorenzo Moneta <Lorenzo.Moneta@cern.ch>
Date: Wed, 25 Feb 2009 15:20:27 +0000
Subject: [PATCH] update release notes
git-svn-id: http://root.cern.ch/svn/root/trunk@27608 27541ba8-7e3a-0410-8455-c3a389f83636
---
hist/doc/v524/index.html | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/hist/doc/v524/index.html b/hist/doc/v524/index.html
index 4fdc92bf8f3..53c65949928 100644
--- a/hist/doc/v524/index.html
+++ b/hist/doc/v524/index.html
@@ -47,6 +47,22 @@
}
</pre>
</li>
+<li>Fixed the bug <a href="https://savannah.cern.ch/bugs/?45607">#45607</a> by creating a list of functions when using TGraph default constructor.
+<li>Fixed a bug when fitting TGraphErrors with zero error in y but non-zero error in x
+</li>
+</ul>
+
+<h4>TH1</h4>
+<ul>
+ <li>Speed up <tt>TH1::GetStats, TH2::GetStats, TH3::GetStats</tt> in case the sum of weights is null and the number of entries is also null
+ <li>Optimize the way the function integral is computed in <tt>TH1::FillRandom</tt>
+ </ul>
+
+<h4>TH3</h4>
+<ul>
+ <li>Add implementation of <tt>TH3::Interpolate</tt> using a tri-linear interpolation method</li>
+ <li>Fix a bug in TH3::Project3D (https://savannah.cern.ch/bugs/?46432) for the error calculation in case of weighted histogram (or when using option "E") and no axis range is set.
+</li>
</ul>
<h4>THistPainter</h4>
@@ -66,3 +82,15 @@
</li>
</ul>
+<h4>TUnfold</h4>
+<ul>
+<li>Add a new version. A new class <tt>TUnfoldSys</tt> provides support for the propagation of systematic errors.
+<li> Some bugs were also fixed due to multiplication of addition of sparse matrices.
+</ul>
+
+<h4>Fitting Methods</h4>
+<ul>
+ <li>Introduce a better treatment of the step size used when fitting an object with a TF1. Use now by default is not zero the error provided by TF1. In case of limits use an appropriate step size to avoid Minuit to go over the limits.
+ <li>fix bug https://savannah.cern.ch/bugs/?45909 when fitting with bad range values (outside the histogram range).
+<li> detect the case when the data set is empty and don't perform any minimizationin this case but exits from fitting and produce a warning message
+ </ul>
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