[ojAlgo-user] Version 16

[Anders P. <ap...@op...>]

Changes in version 16:

1: Made sure the MatrixDecomposition hierarchy methods only return one 
of the
    following types: Scalar<N>, BasicArray<N>, int & BasicMatrix / 
MatrixStore<N>.
    MatrixDecomposition now also has a compute-method that takes a 
MatrixStore
    as input. BasicMatrix will probably be replaced by MatrixStore 
throughout
    the MatrixDecomposition hierarchy. Also added a isSingular() to the 
LU interface.
2: ArbitrraryQR is no longer locked to BigDecimal. This has been a 
problem for a
    long time. Now it is truly "arbitrary".
3: OldPrimitiveLU, OldPrimitiveCholesky & OldPrimitiveQR have been 
removed. The
    junit class org.ojalgo.matrix.decomposition.CompareJamaAndPrimitive 
no longer
    use the Old* versions, but PrimitiveLU, PrimitiveCholesky, PrimitiveQR,
    PrimitiveSingularValue & PrimitiveEigenvalue. Found and fixed a 
couple of
    minor bugs.
4: The modify/visitRow/Column/Diagonal-methods in Array2Dim have been 
refactored
    (incl. the signature). Didn't bother with deprecations since they 
haven't
    been around for long AND contained bugs.
5: PhysicalStore has a new method unshade() and a few fixes.
6: MatrixStore has a new method multiplyBothSides()
7: A couple of methods in Scalar has been deprecated. Don't remember 
when or why
    they were added to Scalar, but they are not used for anything...
    Also changed the definition of what the isZero() method should do.
8: A whole bunch of changes related series, random, statistics... Lost 
track of
    all the changes. Too much had to be changed to allow deprecations.
    AND this is not finished. There will be more changes.
9: New package org.ojalgo.function.multiary, and everything in
    org.ojalgo.function.quadratic has been deprecated. The class
    org.ojalgo.optimisation.Expressen also has a bunch of deprecations in
    preparation of a rewrite.

Changes in version 15:

1: Most of what was marked as deprecated at the time of the last release 
have been removed.

2: New static initialisers in Array1Dim and Array2Dim, and (many) 
deprecations on constructors in the BasicArray hierarchy.

3: New/updated tests in BasicMatrixTest.

4: New org.ojalgo.finance.MarketEquilibrium class. MarkowitzModel and 
BlackLittermanModel have been refactored to use that new class.

5: org.ojalgo.constant.BigFinance has been removed and 
org.ojalgo.finance.FinanceUtils has been deprecated.

6: BigDenseStore, ComplexDenseStore & PrimitiveDenseStore now delegate 
some tasks to an Array2Dim instance.

7: Reworked the ArbitraryLU class. The compute-method now delegates more 
of the actual computations to PhysicalStore.

8: LogicalStore subclasses now support multi-threaded matrix 
multiplication. Multiplication of large matrices on machines with 
multiple CPUs/Cores should now be much faster (haven't actually checked 
that). Also implemented isUpperRightShaded() and isLowerLeftShaded() in 
all the MatrixStores.

9: Completely rewrote the MatrixStore multiplication tests; found and 
fixed several bugs.

SourceForge.net wrote:
> Project: ojAlgo  (ojalgo)
> Package: ojAlgo
> Date   : 2006-11-30 13:57
>
> Project "ojAlgo" ('ojalgo') has released the new version of package 'ojAlgo'.
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