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CHANGES.txt
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CHANGES.txt
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== org.nfunk.* =======================================================
Jul 23 06 rjm - Added methods to VariableFactory to allow a default value to be set.
Jul 16 06 rjm - Reworked interface to EvaluationVisitor.
Jep.getEvaluationVisitor() noew returns a type of EvaluationI.
Constructor now requires a SymbolTable as argument.
Jul 16 06 rjm - Speed up the Power function when power is an integer.
---- 2.4.0 release (Jun 8, 2006) ------------------------------------
Jun 8 06 njf - Revisions to the documentation
Jun 6 06 njf - Added a COPYRIGHT.txt file including copyright and license
information
- Enabled deprecation output while compiling with build.xml
May 26 06 njf - Switched back to JavaCC 3.2 to maintain compatibility with
Java 1.2
May 20 06 rjm - Added a ElementComparative function, changed visability of field
in Comparative.
May 18 06 rjm - Changes to allow the a[5] syntax for access to array elements
- Changed parser to handle the a[5] syntax
- Added an LValueI interface for functions which can be used on
lhs of an asignment,
- Change Assign to work with LValueI.
- Added new OP_ELEMENT to OperatorSet
May 12 06 njf - Changed GraphCanvas to use Java2D anti aliasing for prettier
curve drawing in function plotter applet
Apr 27 06 njf - changed build.xml to rely on setting a JRE instead of a JDK
enviroment variable
- changed build.xml to allow compiling without having a 1.2 JRE
env. var. set (doesn't ensure compatibility to old version then)
Apr 26 06 njf - switched to JavaCC 4.0. Needed to regenerated
JavaCharStream.java.
Mar 11 06 rjm - Added serial version tags where needed
Feb 18 06 njf - removed creative commons references from all source files
Feb 15 06 njf - updated documentation by fixing some broken links and
reapplying the dreamweaver template to all files
- merged new tests from version 2.3.1 into JEPTestExpressions.txt
Jan 06 njf - Created a new branch "v230-patches" on which version 2.3.1
was developed.
Dec 16 05 rjm - Added a checkNumberofParameters method to PostfixMathCommandI,
and a default method to PostfixMathCommand and implementations for necessary functions.
May 02 05 rjm - Added more functionality to NumberFactory.
CreateNumber(double) etc. and getZero() etc.
May 02 05 rjm - Changed error behaviour for addVariable and setVarValue.
These now throw IllegalStateExceptions.
Apr 24 05 rjm - Created a CallbackEvaluationI interface which
replaces SpecialEvaluationI. This facilitates functions
which need access to the node tree.
Apr 01 05 rjm - Variable: Fixed setting validValue for constants.
Passes value to observers on setValue.
Apr 01 05 rjm - SymbolTable can now have observes passed to it.
Added a clearNoConstants method.
Apr 01 05 rjm - Changed behaviour on errors. Removed references to
Error list in EvaluationVisitor. ParseExceptions are thrown instead.
getValueAsObject() traps all errors including RuntimeExceptions.
evaluate() now only throws ParseException.
Apr 01 05 rjm - trapNulls flag in evaluation visitor. Switchable to trap null nulles or not.
Apr 01 05 rjm - Jep copy constructor fixed.
Apr 01 05 rjm - If now works with Numbers
Feb 13 05 rjm - Added binom, conj functions.
Dec 19 njf - figured out documentation linking issues. Leaving docs as they were
before Nov 1 (no frames, javadoc at /doc/javadoc)
Dec 10 rjm - nodeAccept method added to jep.EvaluationVisitor so that it
can be easier for sub classes to use visitor pattern.
- Improved printing facilities for complex numbers.
Nov 6 njf - Merged JEPTester and JEPTest into JEPTest, now in the JUnit framework
Nov 3 rjm - JEP.evaluate() method will throw an exception if this.hasErrors() is true.
Nov 1 njf - changed documentation to frames
- added new FAQ item
Oct 23 njf - added source="1.2" to javac options in build.xml
avoids compile time error with 1.5 compiler by ensuring
1.2 source compatibility
njf - fixed [ 1046349 ] bug in sum()
njf - fixed [ 1051988 ] JEPTester falsely reports "No errors"
njf - improved value comparison and error reporting in JEPTester
njf - reformated Comparative.java, added comments
Oct 22 njf - added simple sum test to JEPTesterExpressions.txt
Oct 4 rjm - Changes the SpecialEvaluationI interface to include a
SymbolTable parameter.
rjm - Added rules to differentiate atan2 removed support for angle
rjm - Doc update for GroupJep, improved consol and unit test or
---- 2.3.0 release (Oct 3, 2004) ------------------------------------
Oct 3 njf - created new features document for the core JEP and moved
appropriate text from DJEP index.html there
njf - changed "jar" and "dist" targets to create a separate djep
jar without examples and test cases, then include both jars
in a jep-djep-2.3.0.zip file
njf - new jjdoc target in build.xml to generate grammar documentation
njf - removed compile.bat and grammardoc.bat
Oct 2 njf - build.xml now creates javadoc using new breakiterator
(gets rid of all the "helpful" output when running javadoc)
njf - added package.html files to package directories
njf - updated details in documentation
njf - documented error handling using hasError() and getErrorInfo()
njf - added 1.2 compatibility checking in build.xml
Oct 1 njf - removed org.lsmp.* from compile in build.xml
njf - commented out addToErrorList("No expression entered"); from
Start() in Parser.jjt
njf - added getTraverse() method
njf - changed @since version names in org.nfunk.* according to:
2.3.0 -> 2.3.0 alpha
2.3.1 -> 2.3.0 beta 1
2.3.2 -> 2.3.0 beta 2
2.3.3 -> 2.3.0 beta 2
2.3.0.1 -> 2.3.0 alpha
---- 2.3.0 beta 2 ---------------------------------------------------
---- 2.3.0 beta 1 ---------------------------------------------------
---- 2.3.0 alpha ----------------------------------------------------
? njf - NumberFactory has been changed to create the number from a String
representation (in order to allow creation of arbitrary precision
numbers without the limitations of double)
Many previous changes not included here. See the documentation for details.
== org.lsmp.* =======================================================
Jul 22 06 rjm - Added routines for multiplying [1,2,3]*[1,2,3] in MRpe
Jul 16 06 rjm - Changes to reflect changes in EvaluationVisitor.
Jul 16 06 rjm - Way NodeFactory treats building a constant node from a function with constant arguments changed.
Jul 16 06 rjm - Above fixes bug with simplifying if(1,2,3). Unit test included.
Jul 16 06 rjm - Speed up calculation of integer powers in rpe and mrpe.
Jul 16 06 rjm - Added support for atan2 and if in rpe and mrpe.
Jul 16 06 rjm - New colsole applications for rpe and mrpe.
Jul 16 06 rjm - Documentation for rpe and mrpe added.
Jul 16 06 rjm - MRpRes now has a doubleValue function for quick access to Scaler values.
Jul 16 06 rjm - MRpCommandList now has method to get the Dimension of the result.
Jul 16 06 rjm - Fixed non critical bug with superflious command being added to command list.
Jul 15 06 rjm - Added methods to rpe to allow quicker setting of variables, new speed test.
Jul 07 06 rjm - Added interegation functions to allow the sjep representation to be interegated.
Jun 14 06 rjm - Fixed bug with multi-arg macro functions.
Jun 14 06 rjm - Added sample application illustrating nested block control stucture.
-- 1.1.0 (Jun 9, 2006) --------------------------------------------
May 20 06 rjm - Fixed bug with differentation visitor. isConstant method returned true for b=a; a=x; when differentiating wrt x.
May 20 06 rjm - Added a ElementComparative function, changed visability of field in Comparative.
May 18 06 rjm - Changes to allow the a[5] syntax for access to array elements
- Created a ArrayAccess function
- Modified OperatorSets
- Print rule for array access in MatrixJep.
Apr 07 06 rjm - Added several functions to allow interegation of command lists
Apr 04 06 rjm - Fixed bug with conversion of (a+b)-(c+d) to polynomial in sjep.
Mar 11 06 rjm - Added serial version tags where needed
Mar 4 06 rjm - fixed bug in SJep 2x+x now correctly simplifies to 3x.
Dec 16 05 rjm - Added implementations of checkNumberOfParameters
for necessary functions.
Dec 08 05 rjm - Added MDivide function
- Fixed bug in MMultiply dividing Tensor by a scaler.
July 28 05 rjm - Added a Define function
- NodeFactory now calls the jep evaluator in buildConstantNode.
- SimplificationVisitor returns now returns null if null is parsed
rather than throwing an error.
- added exp() function to XJep
- added macrocomplex to xjep (Why?)
July 14 05 rjm - Restructured DJep so standard diffrules in DJep rather than DiffVisitor
June 07 05 rjm - Fixed bug in ele which only accepted Double arguments.
May 02 05 rjm - added toBase pfmc and a BaseFormat NumberFormat object.
Apr 24 05 rjm - Reworked junit tests using inheretance.
Apr 24 05 rjm - Simpson and Trapesium functionsa added to XJep.
Apr 03 05 rjm - DifferentationVisitor is now smarter when calculating zero derivatives
- PrintVisitor.getMode(int testmode) added.
Apr 01 05 rjm - MVector, Matrix, Tensor no longer extend number.
Apr 01 05 rjm - Added det(), trace(), vsum(), trans(), getDiag(), diag(), id(),
GenMat, Map function to vectorJep. Need to check diff and matrixJep functionality.
Apr 01 05 rjm - added SpecialPreprocessorI interface for matrixJep functions.
Feb 13 05 rjm - added len() and size() functions
- added Scaler.getInstance() and Vector.getInstance() methods.
Dec 21 rjm - xjep.PrintVisitor can now work with three or more arguments to + and *.
Dec 10 rjm - Implemented element by element multiplication in VectorJep
nodeAccept method added to jep.EvaluationVisitor so that it
can be easier for sub classes to use visitor pattern.
- Improved printing facilities for complex numbers.
- xjep.PrintVisitor now allows a NumberFormat object to be specified to control
the printing of double values.
- ExtendedFreeGroup added to GroupJep this allows a limited
use of ^ and / for polynomials. Polynomials can be raised to
positive integer powers and divided by constants.
Oct 4 rjm - Added rules to differentiate atan2 removed support for angle
rjm - Doc update for GroupJep, improved consol and unit test or working with polynomials over the reals (Doubles).
Oct 1 rjm - RewriteRulesI interface added and RewriteVisitor added.
Begining of an improved simplification algorithm.
Sept rjm - added SumType functions equivilent to sigma notation.
-- 1.0.0 (Oct 3rd, 2004) --------------------------------------------
Many previous changes not included here. See the documentation for details.