e01294b158
Failed attempt to implement Strassen matrix multiplication on recursive layout as
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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@744126 13f79535-47bb-0310-9956-ffa450edef68
2009-02-13 14:38:48 +00:00
42b68a69ce
Added correlation package, Covariance class. JIRA: MATH-114
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@743688 13f79535-47bb-0310-9956-ffa450edef68
2009-02-12 11:21:54 +00:00
01f82aed42
remove eclipse generated equals since it doesn't work. Will add a working equals later
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@742837 13f79535-47bb-0310-9956-ffa450edef68
2009-02-10 03:02:38 +00:00
01ff509885
Fis some problems with equals for OpenInttoDoubleHashmap.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@742445 13f79535-47bb-0310-9956-ffa450edef68
2009-02-09 12:41:20 +00:00
7d4f6893f9
Mostly completing the methods that don't make sense if using a sparse vector in the first place. Initial implementations for equals on the backing store, but it seems it will need more work (since still have to comment out junit tests).
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Making checkVectorDimensions protected instead of public on all RealVector classes.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@742257 13f79535-47bb-0310-9956-ffa450edef68
2009-02-09 04:50:27 +00:00
d22f9559e1
Exposed sums of squares.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@742145 13f79535-47bb-0310-9956-ffa450edef68
2009-02-08 19:30:09 +00:00
2f227a6314
Moved matrix equality tests to TestUtils.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@742120 13f79535-47bb-0310-9956-ffa450edef68
2009-02-08 15:26:09 +00:00
94fcce51cd
improved consistency between RealVector and RealMatrix API
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JIRA: MATH-245
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@740744 13f79535-47bb-0310-9956-ffa450edef68
2009-02-04 13:59:50 +00:00
304ae29268
applied Cyril Briquet's patch (with slight changes) to improve FastFourierTransform efficiency
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JIRA: MATH-216
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@740400 13f79535-47bb-0310-9956-ffa450edef68
2009-02-03 19:59:20 +00:00
aa0dd1db20
javadoc typo
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739957 13f79535-47bb-0310-9956-ffa450edef68
2009-02-02 10:30:20 +00:00
392f5ccdd3
revert accedental work-in-progress commit
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739910 13f79535-47bb-0310-9956-ffa450edef68
2009-02-02 02:50:53 +00:00
e7a7d91384
property sets
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739909 13f79535-47bb-0310-9956-ffa450edef68
2009-02-02 02:42:48 +00:00
117175bc83
property sets mostly, some broken method fixes
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739908 13f79535-47bb-0310-9956-ffa450edef68
2009-02-02 02:40:27 +00:00
8ce2128585
added a PolynomialsUtils class providing factory methods for
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Chebyshev, Hermite, Laguerre and Legendre polynomials
the code was extracted from mantissa and modified
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739840 13f79535-47bb-0310-9956-ffa450edef68
2009-02-01 21:13:55 +00:00
6a965532e6
fixed an error introduced by a recent change in PolynomialsFunction
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(the coefficients array is automatically reduced if high degree coefficients are null)
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739836 13f79535-47bb-0310-9956-ffa450edef68
2009-02-01 21:06:55 +00:00
adc64fb8cf
Added add, subtract, negate, multiply and toString methods to PolynomialFunction
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739834 13f79535-47bb-0310-9956-ffa450edef68
2009-02-01 20:56:12 +00:00
e8bb7ce937
Adding constructors that allow specifing epsilon.
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Remove the isZero(int) method, since it is inconsistant with the isZero(double) method, and this class is tightly bound to it's backing store.
Some javadoc fixes.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739667 13f79535-47bb-0310-9956-ffa450edef68
2009-02-01 00:28:07 +00:00
d957f434e4
Javadoc typos
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739571 13f79535-47bb-0310-9956-ffa450edef68
2009-01-31 15:53:42 +00:00
a3b466009f
Initial checkin for the SparseRealVectorClass.
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I know that it doesn't work 100% with the map*** methods that shouldn't be used with a sparse vector. I'll clean those up shortly (including uncommenting unit tests). Just want to get more eyes on this for the methods that matter.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@739504 13f79535-47bb-0310-9956-ffa450edef68
2009-01-31 04:51:17 +00:00
bca493b0ea
Adding me to the list
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@738375 13f79535-47bb-0310-9956-ffa450edef68
2009-01-28 06:01:02 +00:00
5a589042b9
Correct bug that prevents replacing an element while using an iterator
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@738370 13f79535-47bb-0310-9956-ffa450edef68
2009-01-28 05:20:31 +00:00
bf9c5b292e
Changed FractionFormat to extend NumberFormat. JIRA: MATH-189
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737572 13f79535-47bb-0310-9956-ffa450edef68
2009-01-25 19:28:21 +00:00
e375464b76
Added 1.2 release.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737518 13f79535-47bb-0310-9956-ffa450edef68
2009-01-25 15:03:00 +00:00
e58ea4a8e8
Fixed project name.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737426 13f79535-47bb-0310-9956-ffa450edef68
2009-01-24 19:51:09 +00:00
b5f0d0e102
Replaced maven-generated ant build with standalone version adapted from [io].
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737417 13f79535-47bb-0310-9956-ffa450edef68
2009-01-24 18:44:58 +00:00
3ffa187429
Eliminated advertised exceptions that are no longer thrown.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737415 13f79535-47bb-0310-9956-ffa450edef68
2009-01-24 18:38:33 +00:00
a11930a607
various javadoc fixes
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737161 13f79535-47bb-0310-9956-ffa450edef68
2009-01-23 19:34:32 +00:00
ead1ffe007
fixed missing word
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737152 13f79535-47bb-0310-9956-ffa450edef68
2009-01-23 19:08:11 +00:00
90e47e8a4a
fixed missing javadoc parameter
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737151 13f79535-47bb-0310-9956-ffa450edef68
2009-01-23 19:05:56 +00:00
efb60f8449
fixed wrong subversion directory
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737149 13f79535-47bb-0310-9956-ffa450edef68
2009-01-23 19:04:21 +00:00
9fea76e338
fixed special xml characters
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737148 13f79535-47bb-0310-9956-ffa450edef68
2009-01-23 19:03:41 +00:00
7d54daea2a
Changed NaN comparison tests to use TestUtils.assertSame.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@737011 13f79535-47bb-0310-9956-ffa450edef68
2009-01-23 11:30:27 +00:00
c5d148896f
Forced symmetry in binomialCoefficientLog and added test cases for MathUtils.
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JIRA: MATH-242
Reported and patched by Christian Semrau
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@736288 13f79535-47bb-0310-9956-ffa450edef68
2009-01-21 11:30:36 +00:00
944446a1a8
Fixed error in binomial coefficient computation
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JIRA: MATH-241
Reported and patched by Christian Semrau
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735879 13f79535-47bb-0310-9956-ffa450edef68
2009-01-19 23:52:02 +00:00
e8cfb4889e
added a Legendre-Gauss integrator
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735876 13f79535-47bb-0310-9956-ffa450edef68
2009-01-19 23:40:14 +00:00
260b3a1410
No code change. Fixed spelling errors in comments.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735830 13f79535-47bb-0310-9956-ffa450edef68
2009-01-19 21:25:45 +00:00
e4886c0a39
Fixed error in factorial accuracy. JIRA: MATH-240.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735781 13f79535-47bb-0310-9956-ffa450edef68
2009-01-19 19:43:01 +00:00
89db6968bc
removed commented out code
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735546 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 21:09:42 +00:00
56e7606e9a
improved consistency between solvers/integrators
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by providing the integrand function as a parameter to integrate
rather that at construction, thus allowing reuse of a configured integrator
Jira: MATH-218
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735545 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 21:06:15 +00:00
217fe6de71
added absolute accuracy handling for integrators
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735536 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 20:45:16 +00:00
e2048a1dd3
trying to recover history for solvers
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735530 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 19:48:52 +00:00
2e405f1724
fixed various minor bugs identified by checkstyle and findbugs
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735501 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 16:57:29 +00:00
e6e70980dd
added missing header
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735488 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 16:13:12 +00:00
e60e3de474
Added a new minimization package with an implementation of the Brent algorithm
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contributed by Gilles Sadowski.
The implementation needs some testing as it seems to never use the parabola fitting
and only relying on golden section. This may be due to the refactoring I did on
the original patch.
Jira: MATH-177
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735475 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 15:39:35 +00:00
e7c3207b05
extracted a superinterface ConvergingAlgorithm from UnivariateRealSolver
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for later reuse by upcoming minimization algorithms
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735468 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 14:47:51 +00:00
eab127dce3
split the analysis package into several sub-packages
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735452 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 13:17:58 +00:00
1e3c634cb9
split the analysis package into several sub-packages
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735449 13f79535-47bb-0310-9956-ffa450edef68
2009-01-18 13:07:22 +00:00
d326b9e467
javadoc formatting only.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735312 13f79535-47bb-0310-9956-ffa450edef68
2009-01-17 17:08:10 +00:00
dabf3a5beb
fixed overflow error in gdc computation
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JIRA: MATH-238
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@735178 13f79535-47bb-0310-9956-ffa450edef68
2009-01-16 23:06:32 +00:00
4564adbf19
Changed return type of nthRoot to List
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Renamed getPhi to getArgument
Changed and documented behavior of nthRoot wrt NaN, infinite components
Improved nth root computation
Added some test cases
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@731822 13f79535-47bb-0310-9956-ffa450edef68
2009-01-06 03:46:29 +00:00
Luc Maisonobe
Phil Steitz
William Barker
Sebastian Bazley