C++ NOW

#include<iostream.h

#include<process.h

#include<conio.h

void main()

{

int a[10][10],b[10][10],c[10][10],rowa,cola,rowb,colb,i,j;

cout<<"enter the data for matrix A\n";

cout<<"enter the number of rows=";

cinrowa;

cout<<"enter the number of coloumns=";

cincola;

cout<<"enter the data for matrix B\n";

cout<<"enter the number of rows=";

cinrowb;

cout<<"enter the number of coloumns=";

cincolb;

if((rowa!=rowb)&&(cola!=colb))

{

cout<<"Matrix cannot be added\n";

exit(0);

}

cout<<"Matrix have same order and can be added\n"...

//calculator

//switch case

#include<iostream.h

void main()

{

float a,b,c;

int choice;

cout<<"enter the first number=";

cina;

cout<<"enter the second number=";

cinb;

cout<<"enter the operation\n1=addition\n2=substraction\n3=multiplication\n4=division\n";

cinchoice;

switch(choice)

{

case 1:

c=a+b;

cout<<"addition="<<c;

break;

case 2:

c=a-b;

cout<<"substraction="<<c;

break;

case 3:

c=a*b;

cout<<"product="<<c;

break;

case 4:

c=a/b;

cout<<"quotient="<<c;

break;

default:

cout<<"wrong choice";

}

}

explaination:In this program the swi...