Here we will discuss about how to make calculator using C Program. Wap to write a program in c to make calculator by using function.

## calculator program in c using functions

#include<stdio.h>

#include<conio.h>

#include<math.h>

int sum(int,int);

int product(int,int);

int subtract(int,int);

void main()

{

clrscr();

int a,b,result=0;

char op;

printf("Enter 1st number, operator and 2nd number ");

scanf("%d %c %d",&a,&op,&b);

if (op=='+')

{

result=sum(a,b);

printf("sum = %d",result);

}

if (op=='*')

{result=product(a,b);

printf("product = %d",result);

}

if (op=='-')

{

result=subtract(a,b);

printf("subtraction = %d ",result);

}

getch();

}

int sum(int a,int b)

{return a+b;

}

int product(int a,int b)

{

return a*b;

}

int subtract(int a,int b)

{

return a-b;

}

## 0 comments: