Lines on the plane

Thu Apr 05, 2007 8:58 pm

When you draw a number of lines on a plane it divide the plane into number of parts ,you can calculate them by this C++ program

Code:: #include<iostream> using namespace std; int main() { int n,i; char choise; cout<<"\n\n Cairo University "<<endl; cout<<" Faculty of computers and information"<<endl; cout<<" CS - MATH SOCIETY"<<endl; cout<<" ---------------------"<<endl<<endl; cout<<" INFINITY GROUP "<<endl; cout<<" <><>"<<endl; cout<<"\n\n\tWhen you draw anumber of lines on aplane it divide the plane into\n\t\t\t\t anumber of parts .\n\t\t We now can calculate them by this program. \n\n\t\t\t ***lines and parts***"; do { cout<<"\n\n\t\t\tThe number of lines = "; cin>>n; i=((n*n)+n+2)/2; cout<<"\n\n\t\tNumber of parts = "<<i<<endl; cout<<"\n\tAre you want to test another number?(y/n) "; cin>>choise; } while(choise=='y'||choise=='Y'); cout<<" \n\n *** WITH MY BEST WISHES ***"<<endl; cout<<" INFINITY GROUP "<<endl; cout<<" <><>"<<endl; cout<<"\t\t\tType Exit to close the program : "; cin>>choise; return 0; }