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Version | Date | Description
--- | --- | ---
1.0 | 2004-12-06 | Jakarta Commons Math 1.0 - General Availability Release
1.0-RC2 | 2004-11-07 | Jakarta Commons Math 1.0 - Release Candidate 2
1.0-RC1 | 2004-09-07 | Jakarta Commons Math 1.0 - Release Candidate 1
Get the RSS feed of the last changes ### Release 1.0 - 2004-12-06
Type | Changes | By
--- | --- | ---
| Fixed error in ChiSquareTestImpl. Tables containing zeros were (incorrectly) causing IllegalArgumentExceptions to be thrown. Fixes 32531 . Thanks to Hans van der Heijden . | psteitz
| Removed JDK 1.4-dependent code from CertifiedDataAbstractTest, InvalidMatrixException and MatrixIndexException. Also dropped BeanTransformer, BeanTransformerTest from the release. Fixes 32538 . | psteitz
### Release 1.0-RC2 - 2004-11-07
Type | Changes | By
--- | --- | ---
| Fixed cumulative frequency and cumulative percentage problem reported to the commons-dev list by Jon Langlois on 9/14. Integer arguments to getCumXxx were always returning 0 due to type conversion problems. | psteitz
| Fixed locale-dependency in ComplexFormat. Fixes 31325 . | brentworden
| Renamed univariate package to descriptive and multivariate to regression. | psteitz
| Improved efficiency of logGamma method in o.a.c.m.special.Gamma Fixes 31522 . Thanks to Ken Geis . | psteitz
| Added subMatrix and matrix-valued row and column accessor methods to RealMatrix, BigMatrix interfaces and RealMatrixImpl, BigMatrixImpl. Fixes 30897 . Thanks to Kim van der Linde . | psteitz
| Implemented equals and hashCode in RealMatrixImpl and BigMatrixImpl. | psteitz
| Fixed RealMatrixImpl, BigMatrixImpl toString methods to handle empty matrix. | psteitz
| Added support for "population" variance and standard deviation in Variance (resp. StandardDeviation) classes. | psteitz
| Removed data mutators from RealMatrix, BigMatrix interfaces and RealMatrixImpl, BigMatrixImpl. RealMatrix and BigMatrix instances are now immutable. | psteitz
| Added MatrixUtils class, including static factory methods to create RealMatrix and BigMatrix instances from arrays of various types. | psteitz
| Changed factorial methods to return 1 for argument = 0, instead of (incorrectly) throwing IllegalArgumentException. Fixes 31687 . Thanks to Fredrik Norin . | psteitz
| Fixed error in SimpleRegression.getSignificance. Value returned was off by a factor of 2 (did not match javadoc). Fixes 31860 . Thanks to Kim van der Linde . | psteitz
| Refactored distribution package so that mixed distributions and discrete distributions with non-integer values can be represented. Added Distribution base interface as well as IntegerDistribution extending DiscreteDistribution. Previously existing discrete distributions now implement IntegerDistribution. | psteitz
| Added Poisson distribution implementation. Fixes 31688 . Thanks to Fredrik Norin . | psteitz
| Eliminated unecessary array copy operations in RealMatrixImpl, BigMatrixImpl add, multiply, solve and subtract operations. Fixes 31713 . | psteitz
### Release 1.0-RC1 - 2004-09-07
Type | Changes | By
--- | --- | ---
| This is the first release of Commons Math. Commons Math is a library of lightweight, self-contained mathematics and statistics components. The release candidate is being made available so that users can test the release and provide feedback. |