Introduction

ecMathExpr is an ActiveX control for Visual Basic programs, for compiling and evaluating math expressions from within your VB projects. See screen shot below.

Compiled, runs faster than simple parser methods
Define any number of variables and assign values to them.
Pre-compile 'user-defined' functions to use in other math expressions.
Compile multiple math expressions that can use the pre-defined variables and user functions.
Evaluate (fast and repeatedly) any of the compiled expressions.

Arithmetic operators: ( ) + - * / ^ \ mod
Boolean operators: not, and, or, xor
Logical operators: = > < <> >= <=
Trigonometric functions: sin, cos, tan asin, acos, atan
Hyperbolic trig functions: sinh, cosh, tanh asinh, acosh, atanh
Internal functions: int, fix, sgn, sqr, fact, nCr, nPr, min, max, rnd
Logarithmic and exponential functions: log, exp
Logical if..then..else functions: iif(condition, if_true, if_false)

ecMathExpr.ocx, ActiveX control for MS Visual Basic 6. Requires MS Windows 9x, 2000, ME, XP, NT.

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