CALCULATOR IN C

  // simple calculator

                         

 

#include<stdio.h>

#include<conio.h>

void main()

{

int n,a,b,c;

int p,r,t;

float si;

printf("\t\t******SIMPLE CALCULATOR MADE BY AK DAS******");

do

{

//printf("\n******SIMPLE CALCULATOR MADE BY AK DAS******");

printf("\n\nenter 1 for addition");

printf("\nenter 2 for substraction");

printf("\nenter 3  for multiplication");

printf("\nenter 4 for division");

printf("\nenter 5 for square");

printf("\nenter 6 for quib");

printf("\nenter 7 for simple instrest ");

printf("\nenter 8 for modules");

printf("\nenter 9 for odd or even ");

printf("\nenter 10 for exit\n");

  

 

 

 printf("\nenter your choice\n");

 scanf("%d",&n);

 switch(n) 

 {    // starting point of switch case

case 1:

  printf("\nenter two numbers");

  scanf("%d%d",&a,&b);

  c=a+b;

  printf("\nsum of %d\n",c);

break;

    

    case 2:

     printf("\nenter two numbers");

     scanf("%d%d",&a,&b);

     c=a-b;

     printf("\nsubstraction of %d\n",c);

 break;

  case 3:

     printf("\nenter two numbers");

     scanf("%d%d",&a,&b);

     c=a*b;

     printf("\nmultiplication of %d\n",c);

 break;

  case 4:

     printf("\nenter two numbers");

     scanf("%d%d",&a,&b);

     c=a/b;

    printf("\ndivision of %d\n",c);

 break;

  case 5:

     printf("\nenter your numbers");

     scanf("%d",&a);

     c=a*a;

     printf("\nsquare of %d\n",c);

 break;

  case 6:

     printf("\nenter your numbers");

     scanf("%d",&a);

     c=a*a*a;

     printf("\nquib of %d\n",c);

 break;

 

  case 7:

   //int p,r,t;

   //float si;

     printf("\nenter your p,r,t");

     scanf("%d%f%d",&p,&r,&t);

     si=(p*r*t)/100;

     printf("\nsimple instrest is %d\n",si);

 break;

  case 8:

     printf("\nenter two numbers");

     scanf("%d%d",&a,&b);

     c=a%b;

     printf("\nmodules of %d\n",c);

 break;

  case 9:

     printf("\nenter any number");

     scanf("%d",&a);

     if(a%2==0)

     printf("even no.\n");

     else

     printf("odd no.\n");

 break;

 case 10:

  exit(0);

 

default:

  printf("\nplease enter right input");

}

             

} // end of switch case

 while(1);     

 getch();

} // end of main program