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Commits on Mar 27, 2010
Commits on Feb 16, 2010
  1. MATH-333 fixed

    Dimitri Pourbaix committed Feb 16, 2010
Commits on Jun 11, 2009
  1. renamed RealMatrixImpl, RealVectorImpl, FieldMatrixImpl and FieldVect…

    …orImpl
    
    into Array2DRowRealMatrix, ArrayRealVector, Array2DRowFieldMatrix and ArrayFieldVector
    as suggested by Sam in http://markmail.org/message/hh37ivxpzaoapekj
    
    git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk/src/experimental@783702 13f79535-47bb-0310-9956-ffa450edef68
    maisonobe committed Jun 11, 2009
Commits on Feb 21, 2009
  1. replaced Object[] parameters by variable arguments in exceptions cons…

    …tructors
    
    this allows simpler error declaration and removes the need for the strange
    null argument with fixed messages
    
    git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk/src/experimental@746578 13f79535-47bb-0310-9956-ffa450edef68
    maisonobe committed Feb 21, 2009
Commits on Feb 13, 2009
  1. Failed attempt to implement Strassen matrix multiplication on recursi…

    …ve layout as
    
    described in Siddhartha Chatterjee, Alvin R. Lebeck, Praveen K. Patnala and Mithuna
    Thottehodi paper "Recursive Array Layout and Fast Matrix Multiplication".
    
    As of 2009-02-13, this implementation does not work! The padding at left and bottom
    sides of the matrix should be cleared after some operations like scalerAdd and is not.
    Also there is a limitation in the multiplication that can only process matrices with
    sizes similar enough to have the same power of two number of tiles in all three
    matrices A, B and C such that C = A*B. These parts have not been fixed since the
    performance gain with respect to DenseRealMatrix are not very important, and the
    numerical stability is poor.
    
    This may well be due to a bad implementation.
    
    This code has been put in the experimental directory for the record, putting it into
    production would require solving all these issues.
    
    
    git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk/src/experimental@744126 13f79535-47bb-0310-9956-ffa450edef68
    maisonobe committed Feb 13, 2009
Commits on Dec 2, 2008
Commits on Jun 23, 2008
  1. clarified the ODE package by breaking in into several sub-packages an…

    …d renaming
    
    classes. This also prepares future work for non-stiff solvers.
    
    SwitchingFunctions is now known as EventHandler
    SwitchingFunctionsHandler is now known as CombinedEventsManager
    
    The user manual as also been slightly improved, both to reflect these changes
    and to make it easier to grasp the underlying principles in our implementation
    of ODE solving
    
    
    git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0/src/experimental@670469 13f79535-47bb-0310-9956-ffa450edef68
    maisonobe committed Jun 23, 2008
Commits on Jun 10, 2008
  1. replaced inefficient use of constructors for Integer, Long, Float and…

    … Double
    
    by the recommended static valueOf methods that cache results
    
    git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0/src/experimental@666292 13f79535-47bb-0310-9956-ffa450edef68
    maisonobe committed Jun 10, 2008
Commits on Apr 24, 2008
  1. branching for initial work on 2.0

    starting from a copy of trunk, shortly after 1.2 release
    
    git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0/src/experimental@651200 13f79535-47bb-0310-9956-ffa450edef68
    maisonobe committed Apr 24, 2008
Commits on Jul 29, 2007
  1. Moving to TLP

    Henri Yandell committed Jul 29, 2007
  2. Moving back :)

    Henri Yandell committed Jul 29, 2007
  3. Moving to TLP

    Henri Yandell committed Jul 29, 2007
Commits on May 31, 2007
Commits on Nov 29, 2006
Commits on Mar 12, 2006
Commits on Feb 26, 2006
Commits on May 2, 2005
  1. Fixed error in TTestImpl.homoscedasticTtest. Implementation was

    incorrectly using heteroscedastic t statistic. Also improved sensitivity
    of test cases.
    BZ #34677
    Reported by: Gilles Gaillard
    
    
    git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk/src/experimental@165583 13f79535-47bb-0310-9956-ffa450edef68
    psteitz committed May 2, 2005
Commits on Feb 26, 2005
  1. svn:keywords correction

    Dirk Verbeeck committed Feb 26, 2005
Commits on Dec 10, 2004
Commits on Dec 6, 2004
  1. Moved BeanTransformer classes to experimental directory.

    Partially addresses PR# 32538 (JDK 1.4 dependencies).
    
    
    git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk/src/experimental@141512 13f79535-47bb-0310-9956-ffa450edef68
    psteitz committed Dec 6, 2004
Commits on Jun 1, 2004
  1. Now that we have BeanUtils "free" versions of these they do not need …

    …to be maintained in experimental.
    
    git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk/src/experimental@141264 13f79535-47bb-0310-9956-ffa450edef68
    mdiggory committed Jun 1, 2004
  2. Removing BeanListUnivariate example from test cases. Improving ListUn…

    …ivariate Serialization Example.
    
    git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk/src/experimental@141257 13f79535-47bb-0310-9956-ffa450edef68
    mdiggory committed Jun 1, 2004
Commits on Feb 18, 2004
Commits on Jan 29, 2004
Commits on Nov 23, 2003
Commits on Nov 22, 2003
  1. Here's my idea for approximating derivatives. It follows the decorato…

    …r layout of commons-collections. The main interface point is the UnivariateRealFunctionUtils type which is responisble for creating decorated UnivariateRealFunction objects. To demostrate the how the decorators could be used, I added the UnivariateRealFunctionUtilsTest class which computes a local maximum of a function using derivative decorators and the default solver.
    
    git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk/src/experimental@141043 13f79535-47bb-0310-9956-ffa450edef68
    Brent Worden committed Nov 22, 2003
Commits on Nov 20, 2003
  1. I've thought about this and I like the idea of getting some of this c…

    …ode available in the cvs for experimentation, I'm going ahead and adding it for others to look at and consider.
    
    This directory will not get compiled into the regular build process or future distributions. We can work on an ant script to provide easy build of this if others think it neccessary.
    
    
    git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk/src/experimental@141041 13f79535-47bb-0310-9956-ffa450edef68
    mdiggory committed Nov 20, 2003