234e529e70
added factory methods to simplify creation of runtime exceptions with helpful messages
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@712140 13f79535-47bb-0310-9956-ffa450edef68
2008-11-07 14:42:26 +00:00
4a2d68685b
removed forgotten pre-JDK 1.4 stuff
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added protection against null pointer exceptions
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@712136 13f79535-47bb-0310-9956-ffa450edef68
2008-11-07 14:35:16 +00:00
91ec7946e9
added IEEE-754 related useful constants
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@710172 13f79535-47bb-0310-9956-ffa450edef68
2008-11-03 21:37:51 +00:00
ea15217793
replaced RuntimeException by MathRuntimeException
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@710171 13f79535-47bb-0310-9956-ffa450edef68
2008-11-03 21:36:31 +00:00
9e8e88d916
improved error handling in linear package with finer grained exceptions
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@710168 13f79535-47bb-0310-9956-ffa450edef68
2008-11-03 21:32:26 +00:00
13ea282ab8
simplified a javadoc sentence
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@710167 13f79535-47bb-0310-9956-ffa450edef68
2008-11-03 21:30:07 +00:00
89b21145fb
remove pre Java 1.4 emulation stuff as we now need at least Java 5
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@710166 13f79535-47bb-0310-9956-ffa450edef68
2008-11-03 21:28:35 +00:00
e143e9097d
Added a scalb method in MathUtils.
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This method is similar to the method with same name added in java.lang.Math as of Java 6.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@708001 13f79535-47bb-0310-9956-ffa450edef68
2008-10-26 14:55:45 +00:00
223168ee50
fixed checkstyle warnings
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@705239 13f79535-47bb-0310-9956-ffa450edef68
2008-10-16 13:32:32 +00:00
0e77ce68b3
added missing serialVersionUID
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@705231 13f79535-47bb-0310-9956-ffa450edef68
2008-10-16 12:49:13 +00:00
098eaa3a78
replaced calls to deprecated methods from linear algebra package
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@705211 13f79535-47bb-0310-9956-ffa450edef68
2008-10-16 11:34:38 +00:00
c376e656d7
removed unneeded import statements
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@705210 13f79535-47bb-0310-9956-ffa450edef68
2008-10-16 11:33:21 +00:00
ab5b3d3944
Fixed error in javadoc.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@703818 13f79535-47bb-0310-9956-ffa450edef68
2008-10-12 13:50:35 +00:00
924041770d
added a first version of eigen decomposition implementation
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this version is not finished yet, but it does work when
eigenvalues are well separated and is faster than JAMA for
dimensions above 100.
It still needs work as the MRRR algorithm is not implemented
yet (only the basic parts with twisted factorization is there).
I continue working on this, but wanted to have a first version
committed to let people play with it and as a basis for comparison.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@701897 13f79535-47bb-0310-9956-ffa450edef68
2008-10-05 22:38:13 +00:00
dc4f70a777
added methods to operate directly on double arrays
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@701883 13f79535-47bb-0310-9956-ffa450edef68
2008-10-05 20:37:15 +00:00
ca2d12971f
removed unneeded multiplications by zero by separating
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the first iteration from the following ones in a loop
(once again ...)
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@701857 13f79535-47bb-0310-9956-ffa450edef68
2008-10-05 19:16:18 +00:00
3a751b5acf
removed unneeded multiplications by zero by separating
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the first iteration from the following ones in a loop
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@701852 13f79535-47bb-0310-9956-ffa450edef68
2008-10-05 19:12:05 +00:00
f0aeb29d16
replaced an intermediate variable by its opposite for easier to read expression
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@701846 13f79535-47bb-0310-9956-ffa450edef68
2008-10-05 18:53:18 +00:00
fcb63bbdac
added a test ensuring the part of the symmetric matrix below the diagonal is never used
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@701810 13f79535-47bb-0310-9956-ffa450edef68
2008-10-05 15:37:02 +00:00
50f694b7a0
improved javadoc
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@701809 13f79535-47bb-0310-9956-ffa450edef68
2008-10-05 15:36:20 +00:00
4f7ede1974
fixed typo
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@701642 13f79535-47bb-0310-9956-ffa450edef68
2008-10-04 13:43:57 +00:00
7d5ea6a074
added interfaces for eigen decomposition and for singular value decomposition
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the implementation for this interfaces is not ready yet, but it seems
important to show what the interface will look like.
JIRA: MATH-220
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@700492 13f79535-47bb-0310-9956-ffa450edef68
2008-09-30 15:09:17 +00:00
94f1e9e013
improved javadoc
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@700491 13f79535-47bb-0310-9956-ffa450edef68
2008-09-30 15:05:10 +00:00
e95b705442
updated userguide after deprecation of internal LU decomposition in linear algebra
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@700367 13f79535-47bb-0310-9956-ffa450edef68
2008-09-30 07:15:05 +00:00
bfea325efd
added a transformer from symmetric matrix to tri-diagonal matrix
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(this is only for internal purposes only yet, it will be used later)
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@700272 13f79535-47bb-0310-9956-ffa450edef68
2008-09-29 21:47:41 +00:00
58e8113ee0
fixed indentation (sorry)
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699857 13f79535-47bb-0310-9956-ffa450edef68
2008-09-28 16:31:33 +00:00
a83b792eb0
fixed an matrix mismatch error
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699855 13f79535-47bb-0310-9956-ffa450edef68
2008-09-28 16:28:50 +00:00
8260edaaf6
added a getQT() method to QRDecomposition interface
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compute Q by transposing QT rather than the other way round for efficiency
JIRA: MATH-223
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699850 13f79535-47bb-0310-9956-ffa450edef68
2008-09-28 16:17:41 +00:00
19a6674a57
slight optimization:
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cached pointers to row vectors from double arrays
wherever the same row was used in a loop, to avoid
double index computation/range check
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699846 13f79535-47bb-0310-9956-ffa450edef68
2008-09-28 15:59:14 +00:00
670ebf6f93
Replaced internal LU-decomposition by the external class.
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Deprecated the direct call to these methods as users should
really be able to choose the type of solver they want.
LU-decomposition is only one possibility among others like
QR-decomposition.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699845 13f79535-47bb-0310-9956-ffa450edef68
2008-09-28 15:55:15 +00:00
d3f7151590
pulled some solve-related methods higher in the classes hierarchy
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(isNonSinglular(), getInverse())
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699844 13f79535-47bb-0310-9956-ffa450edef68
2008-09-28 15:51:47 +00:00
44e04f2a0a
Fixed error in javadoc added in r699704
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JIRA: MATH-207
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699762 13f79535-47bb-0310-9956-ffa450edef68
2008-09-28 02:07:19 +00:00
6460cd272a
Eliminated the "mutation requirement" in nextGeneration method.
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Added algorithm description in javadoc.
JIRA: MATH-207
Reported and patched by David Stefka
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699704 13f79535-47bb-0310-9956-ffa450edef68
2008-09-27 18:05:19 +00:00
dbd8ffb54f
propagated trunk changes from r699157 into branch 2.0
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MATH-227. fixed F distribution inverse CDF computation for small denominator degrees of freedom.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@699468 13f79535-47bb-0310-9956-ffa450edef68
2008-09-26 19:51:13 +00:00
57e0c33a52
MATH-227. fixed F distribution inverse CDF computation for small denominator degrees of freedom.
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@699157 13f79535-47bb-0310-9956-ffa450edef68
2008-09-26 03:09:53 +00:00
e1e21f2f68
Fixed an error in CorrelatedRandomVectorGenerator leading to a component of the generated vector being constant
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JIRA: MATH-226
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@696054 13f79535-47bb-0310-9956-ffa450edef68
2008-09-16 21:00:28 +00:00
7684119c58
Greatly improved QR-decomposition speed using transposed matrices internally
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JIRA: MATH-223
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@695251 13f79535-47bb-0310-9956-ffa450edef68
2008-09-14 16:38:11 +00:00
f4c984a31b
Fixed an infinite loop encountered in some backward integration cases for ODE solvers
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@694197 13f79535-47bb-0310-9956-ffa450edef68
2008-09-11 09:57:11 +00:00
81c6a9a29d
added beta distribution
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JIRA: MATH-222
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@693959 13f79535-47bb-0310-9956-ffa450edef68
2008-09-10 19:55:08 +00:00
0420458997
distribution factory was removed after 1.2 release
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@693957 13f79535-47bb-0310-9956-ffa450edef68
2008-09-10 19:53:40 +00:00
f125ff3ce2
fixed typo
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@693862 13f79535-47bb-0310-9956-ffa450edef68
2008-09-10 14:51:12 +00:00
dc2767c461
added Ted Dunning to the list of contributors (for probability density functions)
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@693607 13f79535-47bb-0310-9956-ffa450edef68
2008-09-09 20:59:01 +00:00
e8a6f1a76c
Added probability density functions computation for distributions for which it is feasible
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JIRA: MATH-222
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@693598 13f79535-47bb-0310-9956-ffa450edef68
2008-09-09 20:37:08 +00:00
66759ef52a
added matrix transformer to bi-diagonal shape
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(for later use by singular value decomposition)
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@691551 13f79535-47bb-0310-9956-ffa450edef68
2008-09-03 09:18:29 +00:00
60cd425556
typos
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@690941 13f79535-47bb-0310-9956-ffa450edef68
2008-09-01 11:42:08 +00:00
fb17113403
removed spurious throws clause
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@690934 13f79535-47bb-0310-9956-ffa450edef68
2008-09-01 10:42:28 +00:00
481a091105
added a decompose method to the base DecompositionSolver interface
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to allow a solver to decompose a matrix after construction.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@690803 13f79535-47bb-0310-9956-ffa450edef68
2008-08-31 22:28:55 +00:00
c1f2e60e81
Changed the equals() methods from RealMatrixImpl, RealVectorImpl and Vector3D
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so that they consider +0 and -0 are equal, as required by IEEE-754 standard.
These were bugs similar to MATH-221 for Complex.
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@690314 13f79535-47bb-0310-9956-ffa450edef68
2008-08-29 16:17:33 +00:00
94cf29c4e3
Changed the Complex.equals() method so that it considers +0 and -0 are equal,
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as required by IEEE-754 standard.
JIRA: MATH-221
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@690308 13f79535-47bb-0310-9956-ffa450edef68
2008-08-29 15:46:22 +00:00
a48a97b37f
added JAMA-like LU-decomposition
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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_0@687519 13f79535-47bb-0310-9956-ffa450edef68
2008-08-21 00:19:48 +00:00
Luc Maisonobe
Phil Steitz
Brent Worden