maths_analysis.cpp

计算函数

#include <iostream.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <limits.h>

class Maths_Analysis {

public:

	void Minimum_Value();
	void Maximum_Value();
	void DataFileInput();
	void Constraint();
	void Output_File();

	double x1, x2;                    
	double f1, f2;
	double fmin;
	double fmax;


};

int main()
{	
	Maths_Analysis CA;
	CA.DataFileInput(); 
	CA.Minimum_Value();
 	CA.Maximum_Value();
	CA.Constraint();
	CA.Output_File();

	return 0;
}



//Initialize Value
void Maths_Analysis::DataFileInput()
{

	FILE *INPUTFILE = fopen("Tessol.imp","rt");
	fscanf(INPUTFILE, "%lf \n", &x1);
	fscanf(INPUTFILE, "%lf \n", &x2);
	fclose(INPUTFILE);
}

void Maths_Analysis::Minimum_Value()
{

fmin = 100*(x2-x1*x1)* (x2-x1*x1)+(1-x1)*(1-x1);

}

void Maths_Analysis::Maximum_Value()
{

fmin = 100*(x2-x1*x1)* (x2-x1*x1)+(1-x1)*(1-x1);
fmax = 19-fmin;

}

void Maths_Analysis::Constraint()
{
	f1 = x1+x2*x2;
	f2 = x1*x1+x2;
}


void Maths_Analysis::Output_File()
{
	FILE *OutFile1, *OutFile2;
	OutFile1 = fopen("Variable_Data.txt","wt");
	OutFile2 = fopen("Analysis_Data.txt","wt");

	fprintf(OutFile1,"%10.4lf %10.4lf \n", x1, x2);

	fprintf(OutFile2," %10.4lf %10.4lf %10.4lf %10.4lf \n", fmax,fmin,f1,f2);

	fclose(OutFile1);
	fclose(OutFile2);

}