c++ program to draw line using DDA LINE Algorithm.

#include<iostream.h>
#include<conio.h>
#include<graphics.h>
#include<math.h>

struct co_ordinate
{
 int x,y;
};

class ddaline
{
 public:
  co_ordinate point[2];
  void input_parameter()
   {
    cout<<"enter starting point co_ordinate:- ";
    cin>>point[0].x>>point[0].y;
    cout<<"enter ending point co_ordinate:- ";
    cin>>point[1].x>>point[1].y;
   }

c++ program that performed various operation like rotation,scaling and transfrmation on polygon.

   #include<graphics.h>
    #include<conio.h>
    #include<iostream.h>
    #include<math.h>
    class polygon
    {
    public:
    float x1,y1,x2,y2,x3,y3,x11,y11,x22,y22,x33,y33,a1;
    float a[3][3];
 

c++ program that display following triangle pattern.

for n=3;

pattern :

      

        1   1   2
        3   5    8
       13  21 34


 
#include <iostream>
using namespace std;
int main()
{
int i,j,k,f1,f2,f3;
//input from user
cout<<"Enter a number ";
cin>>k;
f2=1;
f1=0;
f3=1;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        3  1  2
        2  3  1
        1  2  3


 
#include <iostream>
using namespace std;

int main()
{
int i,j,k,x,y,z;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        1  2  3
        2  3  1
        3  1  2 


 
#include <iostream>
using namespace std;

int main()
{
int i,j,k,x,y,z;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        3
        2  2
        1  1  1




#include <iostream>
using namespace std;

int main()
{
int i,j,k,x,n;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        1
        1 1
        1 1 2



#include <iostream>
using namespace std;

int main()
{
int i,j,k,f1,f2,f3;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        1
       -2  3
       -4  5  -6


 
#include <iostream>
using namespace std;

int main()
{
int i,j,k,x,n;
//input from user
cout<<"Enter a number ";
cin>>k;
x=1;
for(i=1;i<=k;i++)
{

c++ program that display following triangle pattern.

for n=3;

pattern:      

        1
        1 2
        3 5 8


 
#include <iostream>
using namespace std;

int main()
{
int i,j,k,f1,f2,f3,x;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        *
        * *
        * * *
        * *
        *


 

#include <iostream>
using namespace std;

int main()
{
int i,j,k;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        1
        1 2
        1 2 3 



 
#include <iostream>
using namespace std;

int main()
{
int i,j,k,n;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

          *
         * *
        * * *
         * *
           * 



#include <iostream>
using namespace std;

int main()
{
int i,j,k,x;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        1
        2 3
        4 5 6



 
#include <iostream>
using namespace std;

int main()
{
int i,j,k,x;
//input from user

c++ program that display following triangle pattern.

for n=3;

pattern:      

           *
          * *
         * * *

 
 
#include <iostream>
using namespace std;

int main()
{
int i,j,k,x;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

       * * *
        * *
          *



#include <iostream>
using namespace std;

int main()
{
int i,j,k,x;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        * * *
        * *
        *
    
 #include <iostream>
using namespace std;

int main()
{
int i,j,k,x;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following triangle pattern.

for n=3;

pattern:      

        *
        * *
        * * *

#include <iostream>
using namespace std;

int main()
{
int i,j,k;
//input from user

c++ program that display following triangle pattern.

for n=5;

pattern:

a b c d e

a b c d

a b c

a b

a

#include <iostream>
using namespace std;

int main()
{
int i,j,k;
char x;
//input from user
cout<<"Enter a number ";
cin>>k;

c++ program that display following pattern.

for n=5;
1
2 3
4 5 6
7 8 9 10





#include <iostream>
using namespace std;

int main()
{
int i,j,k,n;
n=1;

c++ program that display following pattern.

for n=5 ;
pattern:

a
a A
a A b
a A b B
a A b B c 

#include <iostream>
using namespace std;

int main()
{
int i,j,k;
char x,z;
//input from user
cout<<"Enter a number ";
cin>>k;

for(i=1;i<=k;i++)
{
x=65;
z=97;
for(j=1;j<=i;j++)
{
if(j%2==0)
{
cout<<x;
x=x+1;