Generic Mathematical Expression Framework

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Introduction

The ExpressionFramework namespace consists of four classes and four delegates.

• Expression (An object representation of a parseable mathematical expression)
• Operator (An object representation of a binary/unary operator)
• Variable (An object representation of mathematical variables)
• OperatorLibrary (A Key-Value collection of built-in operators. You can add yours too.)
• Two delegates for calculation on operators (each for binary & unary)
• Two delegates for string representation of operators with their operands

Operands might be an Expression, a Variable or a Double.

Basically, Expression is a collection of many of the above mentioned operands in a meaningful sequence.

Example Code

using System;
using ExpressionFramework;

namespace TestExpressionFramework
{
    class Program
    {
	static void Main(string[] args)
	{
	    Expression ex1 = new Expression("4*(1+x)^(1/2)"); //Answer = 12 for x=8
	    ex1.FindVariable("x").Value = 8;
	    Console.WriteLine(ex1.Calculate());
	    Expression ex2 = new Expression("(x*3)+(x^8)");   //Answer = 262 for x=2
	    ex2.FindVariable("x").Value = 2;
	    Console.WriteLine(ex2.Calculate());
	}
    }
}

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)