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#  http://muparserx.beltoforion.de                                      #
#  (C) 2011 Ingo Berg                                                   #
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V2.0.1 (20111014)
-----------------
Bugfixes:
  - Issue 1 fixed: Assertion when using a function with multiple arguments 
    in the same expression twice with different number of arguments.
    (Reference: http://code.google.com/p/muparserx/issues/detail?id=1)

V2.0.0 (20111009)
-----------------

Changes:
- Fundamental datatype changed to a matrix type instead of a vector type
- Multidimensional index operator added
  old:
	"m[1][2] = 1"
  new:
	"m[1,2] = 1"

- type identifier for matrices is now 'a', formerly 'a' was used to 
  indicate arrays. An arrays are now seen as subsets of matrices, there is no 
  special type for arrays.

Bugfixes:
- Matrix addition and subtraction work properly now.


V1.10.2 (20110911)
------------------
Bugfixes:
- Fix for changed behaviour of tellg in GCC 4.6.1. A Space is now appended 
  to every expression in order to avoid problems.


V1.10 (20110310)
----------------
Warning:
The API of this version is not backwards compatible and requires minor 
changes to client code!

Changes:
- Static type checking removed entirely
  (All type checking must be made at runtime by the callbacks themself)
- Optimizer removed. The optimizer had only limited effect since it only
  implemented a very simple constant folding mechanism. It collided with 
  the new if-then-else logic and had to go. It will probably be reintroduced
  in one of the next versions using a different implementation.
- Expressions can now span multiple lines. This only makes sense when used
  together with the assignment operator i.e.:

		a=1
		b=2
		c=3
		sin(a+b+c)


Bugfixes:
- Nested if-then-else did not work properly
- Sign operators extended to work with arrays
- Operators "==" and "!=" did not work properly for arrays
- Relational operators "<", ">", "<=", ">=" did not work for complex numbers
- GCC makefile was broken in V1.09
- complex multiplication did not work correctly; 
  was:
	 (a+ib)(c+id)=>re=ac-bd;im=ad-bc 
  instead of:
         (a+ib)(c+id)=>re=ac-bd;im=ad+bc 
- Expressions with parameterless functions like a=foo() did not evaluate properly.


V1.09 (20101120)
----------------
Changes:
- Performance increased by factor 4 due to introducing a simple memory pool for value items.
- C++ like if-then-else operator added ( "(a<b) ? c : d")

Bugfixes:
- Memory leak fixed which prevented operator and funtion items from beeing released.


V1.08 (20100902)
----------------
Changes:
- Implicit creation of unknown variables at parser runtime is now possibe
  (i.e. expressions like "a=0"; with a beeing a undefined variable).
- Callbacks can now be organized in packages
- Callbacks split into a complex and a non complex package
- Complex power operator added

Bugfixes:
- Assignment operators did not work properly for complex values
- Complex sign operator fixed in order not to mess up 0 by
  multiplying it with -1 (-0 and 0 ar not the same according to
  IEEE754) 


V1.07 (20100818)
----------------
Changes:
- Parsing performance improved by 20 - 30 % due to removing unnecessary 
  copy constructor calls when returning the final result.
- License changed from GPLv3 to LGPLv3
- Assignment to vector elements is now possible (i.e.: va[1]=9)

Bugfixes:
- The Value type could not properly handle matrices (vector of vector)
  uses the reverse polish notation of an expression for the evaluation.
- Error messages did not display the proper type id's when compiled 
  with UNICODE support.


V1.06 (20100710)
----------------
- Parsing performance improved by factor 2-3 due to a change which
  uses the reverse polish notation of an expression for the evaluation.


V1.05 (20100530)
----------------
- The parser now handles the associativity of binary operators properly
- Parsing performance improved by factor 7 due to caching tokens 
  once an expression is parsed. Successive evaluations will use 
  the cached tokens instead of parsing from string again.


V1.04 (20100516):
-----------------
- Querying of expression variables implemented
- Bugfix for incorrect evaluation of expressions using the index 
  operator added
- nil values removed
- Support for functions without parameters added
- UNICODE support added


V1.03:
------
- basic functions rewritten to complex valued functions
- Unit postfix operators added to the standard setup


V1.02:
------
- Index operator added
- addition/subtraction of vectors added


V1.01:
------
- Complex numbers added with support for basic binary operators
- Vector type added with support for basic operations (v*v, v+v)
- Variable class changed to take a pointer to a value class instead
  of base types like int or double.


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  muParserX - A C++ math parser library with array and string support
  Copyright 2010 Ingo Berg

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE
  as published by the Free Software Foundation, either version 3 of 
  the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with this program.  If not, see http://www.gnu.org/licenses.