[gusenkovs]

Программа решает уравнния вида ax^2+bx+c

Код:

#include <math.h>
#include <iostream>
#include <fstream>
using namespace std;
double kkui_discremenant (double a,double b,double c)
{double discreminant=pow(b,2)-4*a*c;
 return discreminant;
}
double x1v (double a,double b,double c)
{double discreminant=kkui_discremenant(a,b,c);
if (discreminant>=0)
{double x1=(sqrt(discreminant)-b)/(2*a);
return x1;}return 0;}

double x2v (double a,double b,double c)
{double discreminant=kkui_discremenant(a,b,c);
if (discreminant>=0)
{double x2=(-sqrt(discreminant)-b)/(2*a);
return x2;};return 0;}
void log(double a,double b,double c,double discremenant,double x1,double x2) 
{
	ofstream outfile("C:\\kku.log",ios::app);
    outfile<<a<<"x^2+"<<b<<"x+"<<c<<endl<<"дискрименант"<<discremenant<<endl<<"x1="<<x1<<endl<<"x2="<<x2<<endl<<"Теорема Виетта"<<"(x-("<<x1<<")(x-("<<x2<<"))"<<endl; 
    outfile.close();}