programming/c_programming/calculator.c at 2193d60bb53932810b6d59eb2a17e147da22f89b · hacktoberfest17/programming · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
#include <stdio.h>


void main(){

//declarations
double num1, num2;
char op;

printf("Enter the calculation:\n");
scanf("%lf %c %lf", &num1,&op,&num2);

switch(op){
    case '+':
        printf("%lf + %lf = %lf\n", num1, num2, num1+num2);
        break;
    case '-':
        printf("%lf - %lf = %lf\n", num1, num2, num1-num2);
        break;
    case '*':
        printf("%lf * %lf = %lf\n", num1, num2, num1*num2);
        break;
    case '/':
        if(num2==0){
            printf("Division by zero error!\n");
        }else{
            printf("%lf / %lf = %lf\n", num1, num2, num1/num2);
        }
        break;
    case '%':
        if((long)num2==0){
            printf("Division by zero error!\n");
        }else{
            printf("%lf %% %lf = %ld\n", num1, num2, (long)num1%(long)num2);
        }
        break;
    default: printf("Invalid Operator\n");
}

}