3 / main

#include <iostream>
#include <stdio.h>
#include <conio.h>
#include <math.h>
#include <cmath>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char** argv) {
double x1, x2, dx, X, F, a, b, c;
	
	printf("\n@@@@@@@@@@@@@@@@@@@x1=");
	scanf("%lf",&x1);
	
	printf("\nx2=");
	scanf("%lf",&x2);
	
	printf("\ndx=");
	scanf("%lf",&dx);
	
	printf("\na=");
	scanf("%lf",&a);
	
	printf("\nb=");
	scanf("%lf",&b);
	
	printf("\nc=");
	scanf("%lf",&c);
	
	printf("\n      x             F");
	
	X=x1;
	for (X;X<=x2; X=X+dx)
	{
	if ((a<0) && (X!=0))
		{
		F=a*pow(X,2)+pow(b,2)*X;
		printf ("\nX=%7.3lf          F1=%7.3lf",X,F);
		}
	else
		{
		if ((a>0) && (X==0))
			if(X==c)
			{
			printf("\nX=%7.3lf         F2=Error", X);
			}	
			else 
			{
			F=-(a)/(X-c);
			printf ("\nX=%7.3lf          F2=%7.3lf",X,F);
			}	
		else
			{F=a+(X/c);
		 	printf ("\nX=%7.3lf          F3=%7.3lf",X,F);
			}
		}	
	}			
	return 0;
}