AIM:
A program to solve a quadratic equation, using OOP techniques.
ALGORITHM:
1) Start the process
2) Invoke the classes
3) Get the input for a,b,c;
4) Call the function getinfo() and display()
5) Check if a=0
a) True : compute c/b;
i) Print the value of a/c;
b) False: compute b*b-4*a*c;
i) If ( b*b-4*a*c)=0
ii) Call img();
iii) Otherwise : call real(a,b,c);
6) Stop the process
PROGRAM:
#include<iostream.h> #include<conio.h> class equation { private:float a,b,c; public: void getinfo(float a, float b,float c ); void display( ); void equal(float a, float b); void imag( ); void real(float a,float b,float c); }; void equation :: getinfo(float aa,float bb,float cc) { a=aa; b=bb; c=cc; } void equation::display( ) { cout<<endl; cout<<”a=”<<a<<’\t’; cout<<”b=”<<b<<’\t’; cout<<”c=”<<c<<endl; } void equation ::equal (float a,float b) { float x; x = -b/(2*a); cout<<”Roots are equal “<<x<<endl; } void equation :: imag( ) { cout<<”Roots are imaginary”; } void equation :: real(float a,float b,float det) { float x1,x2,temp; temp = sqrt(det); x1= (-b + temp)/(2*a); x2 = (-b –temp)/(2*a); cout<<”Roots are real”; cout<<”x1= “<<x1<<endl; cout<<”x2 =”<<x2<<endl; } void main( ) { class equation e; float aa,bb,cc; clrscr( ); cout<<”Enter the three numbers”; cin>>aa>>bb>>cc; e.getinfo(aa,bb,cc); e.display( ); if(aa = =0) { float temp; temp = cc/bb; cout<<” Linear Roots”<<temp<<endl; } else { float det; det = (bb*bb – 4*aa*cc); if(det = =0) e.equal(aa,bb); else if (det<0 ) e.imag( ); else e.real(aa,bb,cc ); } getch( ); }
OUTPUT:
Enter the three numbers 2 4 1
Roots are imaginary
X1= – 0.292893
X2= – 1.707107
Description :
This is the one stop educational site for all Electronic and Computer students. If you want to learn something new then we are here to help. We work on Microcontroller projects, Basic Electronics, Digital electronics, Computer projects and also in basic c/c++ programs.
#Home #Sitemap #Submit #Terms of Use
Copyright©2011 electrofriends.com All Rights Reserved
Contact:info@electrofriends.com | Powered by Dhyeya