Expression Parser

Details:

Rating:  4.0	Subject Knowledge:  0.0
Size: 1 MB	Date Added: 11/28/2005
Author: XoYo Software	Last Update: 4/6/2006
License: Commercial	Price: $159
OS:

Summary:
#Calculation component is a powerful calculation engine for your applications. This component integrates expression parsing and evaluating. It's suitable for heavy-duty number crunching.

Description:
#Calculation component is a powerful calculation engine for your applications. This ActiveX component integrates expression parsing and evaluation. Generally speaking, #Calculation is very useful in two main areas: first, when a formula has to be defined and evaluated at runtime (for example, when the end user is allowed to enter a formula that will be evaluated and used); second, when a set of formulas that depend on each other are defined, configured, and evaluated at run-time. #Calculation Component supports conventional math, string, date&time, logical operators and functions, and is suitable for heavy-duty number crunching. It also allows defining variables and sets of related formulas that implement spreadsheet-like recalculations. It can also support Matrix and Array operations (just like MATLAB), comments, different numerical systems and custom functions in expressions.

General features of #Calculation:
-Arithmetic, Logical, Bitwise and Relational operation
-String operation
-Date&Time operation
-Matrix and Array operation
-More than 110 Built-In Functions
-Component constant and expression constant support
-Alias for operators and functions
-Unlimited nesting of expressions
-Auto-detection of errors
-"Simulate the exact value" operation
-Two kinds of return values - string and numerical
-Types of return values - Number, String, Datetime and Matrix
-Upper case and lower case can be used interchangeably in expressions
-Ansi chars and some unicode chars can be used in the expression
-Scientific notation for numerical values
-Custom-variable support
-Comments can be used in the expression to evaluate
-Custom functions can be created and used in expressions
-Mixed operation among Binary, Octal, Decimal and HEXadecimal numbers
-"Round Operation" according to desired precision
-Base-N(2,8,10,16) results can be shown
-Matrix and Array result support