Author: psteitz
Date: Thu Mar 25 00:41:40 2010
New Revision: 927245
URL: http://svn.apache.org/viewvc?rev=927245&view=rev
Log:
Updated to reflect recent bug fixes.
Modified:
commons/proper/math/trunk/RELEASE-NOTES.txt
Modified: commons/proper/math/trunk/RELEASE-NOTES.txt
URL:
http://svn.apache.org/viewvc/commons/proper/math/trunk/RELEASE-NOTES.txt?rev=927245&r1=927244&r2=927245&view=diff
==============================================================================
--- commons/proper/math/trunk/RELEASE-NOTES.txt (original)
+++ commons/proper/math/trunk/RELEASE-NOTES.txt Thu Mar 25 00:41:40 2010
@@ -1,27 +1,29 @@
- commons-math-2.1 RELEASE NOTES
+ Apache Commons Math 2.1 RELEASE NOTES
-This is a maintenance release including numerous bug fixes and enhancements.
+This is primarily a maintenance release, but it also includes new features and
enhancements.
+Users of version 2.0 are encouraged to upgrade to 2.1, as this release
includes some important
+bug fixes. See the detailed list of changes below for full description of all
bug fixes and
+enhancements.
-Users of version 2.0 are encouraged to upgrade to 2.1, as this release
includes some important bug fixes.
-
This release contains some minor API compatibility breaks with version 2.0:
---------------------------------------------------------------------------
-- the return type of RealVector.copy() has been changed to AbstractRealVector
-- the no-argument constructor of MatrixUtils() has been made private
-- the mapXxxToSelf methods of OpenMapRealVector have been removed and
- some method return types have been changed in this class
-- new methods have been added to the RealVector interface
-- several fields in AdaptiveStepSizeIntegrator have been made final
-- DummyStepInterpolator requires an additional argument for one of its
constructors
-- some protected fields have been removed from AbstractLeastSquaresOptimizer,
- AbstractScalarDifferentiableOptimizer and AbstractLinearOptimizer
-- the isOptimal(SimplexTableau) method has been removed from SimplexSolver
+ --------------------------------------------------------------------------
+ - the return type of RealVector.copy() has been changed to AbstractRealVector
+ - the no-argument constructor of MatrixUtils() has been made private
+ - the mapXxxToSelf methods of OpenMapRealVector have been removed and
+ some method return types have been changed in this class
+ - new methods have been added to the RealVector interface
+ - several fields in AdaptiveStepSizeIntegrator have been made final
+ - DummyStepInterpolator requires an additional argument for one of its
constructors
+ - some protected fields have been removed from AbstractLeastSquaresOptimizer,
+ AbstractScalarDifferentiableOptimizer and AbstractLinearOptimizer
+ - the isOptimal(SimplexTableau) method has been removed from SimplexSolver
Changes in this version include:
New features:
+o MATH-357: Implementation of bicubic interpolation.
o Added a way to compute both the final state in an Initial Value Problem (IVP)
for Ordinary Differential Equations (ODE) and its derivatives with
respect to
initial state and with respect to some problem parameters. This allows
wrapping
@@ -51,6 +53,9 @@ o MATH-282: Resolved multiple problems
absolute accuracy configurable for all continuous distributions.
o MATH-347: Fixed too stringent interval check in Brent solver: initial guess
is now
allowed to be at either interval end
+o MATH-358: Fixed an error in events handling in ODE solvers. In some rare
cases, events
+ occurring close to a step start were handled without truncating the
step, making
+ them appear as is they occurred close to the step end
o Fixed a problem with getInterpolatedDerivatives returning zero derivatives
when
an ODE step handler is configured to not use interpolation. It now
returns a
constant but non-zero value consistent with at least one point inside
the step
@@ -112,6 +117,7 @@ o MATH-283: Prevent infinite loops in m
o MATH-297: Prevent possible zero divides on eigenvectors of indefinite
matrices Thanks to Axel Kramer.
Changes:
+o MATH-356: Added method to clear the list of observations.
o MATH-332: Added density functions to remaining continuous distributions (F,
T, Weibull, Cauchy).
As of Math 2.1, all continuous distributions implement density
functions. The HasDensity
interface has been deprecated and in version 3.0, density(double) will
be added to the
