CALCULATOR

#include<stdio.h>

#include<conio.h>

#include<iostream.h>

#include<math.h>

#include<process.h>

#include<stdlib.h>

void main()

{

clrscr();

int i;

printf("****  WELCOME TO THE CALCULATION WORLD  ****");

printf(" \n****NOW CHOOSE ONE OF THE FOLLOWING OPTIONS ****");

printf("\n  {1}  ADDDITION  ");

printf("\n  {2}  SUBTRACTION  ");

printf("\n  {3}  MULTIPLICATION ");

printf("\n  {4}  DIVIDE ");

printf("\n  {5}  POWER ");

printf("\n  {6}  SQUAREROOT");

printf("\n  {7}  INVERSE");

printf("\n  {8}  FACTORIAL");

printf(“\n  {9}  EXIT  “);

printf("\n   PLEASE ENTER THE VALUE \n");

printf("   ");

scanf(" %d",&i);

switch(i)

{

case 1:

int a,b,z,sum=0;

printf("\n ENTER FIRST NUMBER ");

scanf("%d",&a);

printf("\n ENTER SECOND NUMBER ");

scanf("%d",&b);

z=a+b;

sum=z;

printf("\nSUM IS %d",sum);

break;

case 2:

int c,d,subtraction=0;

printf("\n ENTER FIRST NUMBER ");

scanf("%d",&c);

printf("\n ENTER SECOND NUMBER ");

scanf("%d",&d);

if(c>d)

{

subtraction=c-d;

printf("SUBTRACTION IS =%d",subtraction);

}

else

{

subtraction=d-c;

printf("SUBTRACTION IS -%d",subtraction);

}

break;

case 3:

int e,f,multiplication=0;

printf("ENTER THE FIRST NUMBER  ");

scanf("%d",&e);

printf("\nENTER SECOND NUMBER ");

scanf("%d",&f);

multiplication=e*f;

printf("MULTIPLICATION IS =%d",multiplication);

break;

case 4:

int g,h,remainder=0,quotient=0;

printf("ENTER THE FIRST NUMBER  ");

scanf("%d",&g);

printf("\nENTER SECOND NUMBER ");

scanf("%d",&h);

remainder=g%h;

quotient=g/h;

printf("REMAINDER=%d",remainder);

printf("\nQUOTIENT=%d",quotient);

break;

case 5:

int j,k,power=0;

printf("FIRST NUMBER IS BASE AND SECOND IS POWER\n");

printf("ENTER FIRST NUMBER  ");

scanf("%d",&j);

printf("\nENTER SECOND NUMBER ");

scanf("%d",&k);

power=pow(j,k);

printf("POWER VALUE IS=%d",power);

break;

case 6:

float l,squareroot=0;

printf("ENTER THE VALUE OF WHICH WE HAVE TO FIND SQUARE ROOT  ");

scanf("%d",&l);

squareroot=sqrt(l);

printf("THE SQUARE ROOT =%d",squareroot);

break;

case 7:

float m;

float n;

printf("ENTER THE VALUE FOR WHICH WE HAVE TO FIND INVERSE  ");

scanf("%f",&m);

n=1/m;

printf("INVERSE IS =%f",n);

break;

case 8:

int fact=1,o,p,q;

printf("ENTER THE VALUE FOR WHICH WE HAVE TO FIND FACTORIAL  ");

scanf("%d",&o);

for(p=1;p<=o;p++)

{

fact=fact*p;

}

printf("FACTORIAL =%d",fact);

break;

case 9:

exit(0);

default:

printf("PLEASE ENTER THE VALID OPTION !");

sound(1000);

}

getch();

}