It's a fast equation parser/evaluator with parse-tree builder and user-friendly interface for parsing and evaluation a run-time defined string as a math expression.
The math expressions is represented as string in a function style

F(x1, x2,..., xn) =f(x1, x2,..., xn)

, where
F(x1, x2,..., xn) - declares number and names of the variables;
f(x1, x2,..., xn) - math expression may contain:

• variables x1, x2,..., xn and numbers,
• arithmetic operations + - * / ^,
• logical operators: <, >, =, # (not equal), &(logical AND), | (logical OR)
• supporting a large set of math functions: : abs(x), acos(x), asin(x), atan(x), atan2(y,x), ceil(x), cos(x), cosh(x), exp(x), floor(x), fmod(x,y), J0(x), J1(x),  JN(n,x), hypot(x,y), iif(cond, exp1, exp2), ln(x), log10(x), max(x,y), min(x,y), sin(x), sinh(x), sqrt(x), tan(x), tanh(x), Y0(x), Y1(x), YN(n,x);
• constants e= 2.71828182845904 and pi= 3.14159265358979, and
• support for run time addition of user defined constants and functions.

For example:
F(x, y) = 3*iif(x>y, x^2,y^2)+e/4,
F(x1, x2, y) = (x1-sin(x2))/y,
F() = 5+6+pi.

The algorithm, which is used here, has been developed and implemented by Easy Math Solution as managed and unmanaged components. The unmanaged implementation is represented in static and dynamic library (both as procedural and object oriented) and works with either ANSI or UNICODE string. It allows to use EquTranslator in any languagies (C/C++, Delphi, VB, C#,..) and systems that knows how to comunicate with dll or .NET platform.

The main characteristics of EquTranslator are:

• extremely fast,

One of the major enhancement and attractive value of EquTranslator algorithm is speed. This essential feature, that already has deserved recognition of our clients, gives you competitive advantage and power to make your application more efficient. On computer AMD Athlon^TM 2000 XP EquTranslator is getting result of

,

within 0.891 (sec).
• easy to use interface,

TCalc EvaluateEqu(const char *mathFunc, const double*args );
TCalc Evaluate(const char *varList, const char *mathExp, 
				const double *args );
void  BuildEqu(const char * mathFunc);
void  Build(const char *varList, const char *mathExp,);
TCalc CalcFor(const double *args);
bool  AddFunction(const char*funName, 
		const double (__stdcall*)(const double&));
bool  RemoveFunction(const char*funName);
bool  AddConst(const char*constName, double constVal);
bool  RemoveConst(const char*constName);
... 

• procedural and OOP implementation,

double arg[]={5.1, 3};
double res;
res=EvaluateEqu("F(x,y)=sin(x)+3*y^2+(x+y)", arg);

 or

double arg[]={5.1, 3};
EquTranslator equTr;
double res=equTr.Evaluate("x,y", "sin(x)+3*y^2+(x+y)", arg);

• multithreading (OOP version only),
• unlimited number of variables,

double arg[]={5.1, 3, -1.8, 11.7, 10001};
double res;
BuildEqu("F(x1,x2,x3,x4,x5)=x1+sin(x2)/x3+5*x4+cos(x5)");
res=CalcFor(arg);

• exception mechanism provided,

 
double arg[]={5.1, 3, -0.3};
double res;

try{
	Build("x,y,z", "sin(x)+cos(y)^2-z");
	res=CalcFor(arg);
} 
catch(EquException &e) {
	std::cout<< e.what();
}

• ANSI and UNICODE support,

double arg[]={5.1, 3, -0.3};
double res;
TCHAR *mathF=_T("F(x,y,z)=sin(x)+cos(y)^2-z");

res=EvaluateEqu(mathF, arg);

• can be extended by user defined functions and constants.

 //User defined function
const double __stdcall toRad(const double& x)
{
	return x*3.14/180;
}

int main(int argc, char* argv[])
{
double arg[] = {2, 5.6, -11};
double two_pi = 2*3.14;
double res;
char *mathF="F(x,y,z)=3*x^2-y^2+sin(toRad(45))/4+two_pi";

AddFunction("toRad", toRad);
AddConst("twoPi", two_pi);

BuildEqu(mathF);
res = CalcFor(arg);

EquTranslator Documentation

Feel free, try DEMO version of EquTranslator and check it out if your calculation algorithm needs some improvements. The zip file also includes MS Word format manual and sample projects for VC++, C++Builder, Delphi, VB, C# and VB.NET.

For price and licenses, please check : Price&Conditions

Please, review our web site www.e-MathSolution.com regularly for new products and services. For more information, please contact us at: info@e-MathSolution.com

	EquTranslator  has been tested by the Softpedia labs and found to be completely clean of adware/spyware components. "...We are impressed with the quality of your product and encourage you to keep this high standards in the future..."
	BrotherSoft Review Staff give to EquTranslator the maximum 5 out of 5 Rating because this product is easy to use, it has a professional-looking interface, it is excellent compared to other programs in this section and so on.
	SoftsList Review Team give to EquTranslator the maximum 5 out of 5 Rating.
	EquTranslator has received a 5 Star Rating at FinalDownload.com.
	EquTranslator has been awarded 5 Star rating by Sofotex editors.
	EquTranslator has been awarded 5 Star rating by Soft20 editors.
	EquTranslator has been awarded 5 Star rating by 2haveit.com.
	EquTranslator has been awarded 5 Star rating by FreeTrialSoft editors.
	EquTranslator has received a 5 Star Rating at PopSoftLib.com.
	EquTranslator on our website has a 5 rating now!

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