mXparser - Math Parser Java C# Library Files

v.2.0.0 (2015-12-31):

Major update of the library providing more intuitive and much simpler to use API, no changes to the MathCollection.

Methods removed: setRecursiveMode(), disableRecursiveMode()

• No need to manually mark recursive mode, mXparser is recognizing this mode automatically.

New handy and super easy (natural to use) constructors:

• Constructors for user defined arguments (Argument / RecursiveArgument classes), user defined constant (Constant class), user defined functions (Function class).

Sample code:

   Constant c = new Constant("c=5");
   Constant c = new Constant("c=5+2");
   Argument x = new Argument("x=5");
   Constant c = new Constant("c=5+x", x);
   Argument y = new Argument("y=2*x", x);
   RecursiveArgument f = new RecursiveArgument("f(n)=n*f(n-1)");
   Function f = new Function("f(x,y)=sin(x)+y");
   Function f = new Function("f(n)=if( n>0, n*f(n-1), 1)");

New methods: addDefinitions(PrimitiveElement... elements), removeDefinitions(PrimitiveElement... elements)

• New class PrimitiveElement introduced only to simplify constructors of arguments, constants, functions and expressions.
• Classes Argument, RecursiveArgument, Constant, Functions inherits now from PrimitiveElement class, it means you can call one method for adding / removing definitions by passing comma separated list of elements that can be different type (supported types: Argument, RecursiveArgument, Constant, Function).
• Method addArguments(), addConstants(), addFunctions(),removeArguments(), removeConstants(), removeFunctions() are still public, but this will change in the future.

Sample code:

   Constant c = new Constant("c=5");
   Argument x = new Argument("x=10/2");
   Expression e = new Expression("c+x");
   e.addDefinitions(x,c);

Modified constructors for classes Argument, RecursiveArgument, Constant, Function

• Constructors relying on directly given argument / constant / function name are now checking given name according to the predefined regular expression (the name must start with letters, and then digits / underscores / letters are allowed).
• Constructors removed – all constructors relying on ArrayList/List of arguments, constants, functions or on varidic type Argument, Constant, Function were substituted based on comma separated prams list of PrimitiveElement type, where Argument, Constant, Functions extend / inherit PrimitiveElement).

C# library is now Common Language Specification Compliant, it means mXparser is available right now to many other .NET languages (providing exactly the same API), including:

• C#
• Visual Basic .NET
• C++/CLI
• F#

Other changes

• New extended list of regression tests (to cover new methods, constructors, etc...)
• Implemented Performance Tests
• Source code converted from cp150 to UTF-8
• Source code reorganization (some part of package level code of the Expression class was moved to the mXparser class)
• Some bugs fixed (for sure there are others)