Hi all,

i was told to do up a program to emulate a calculator (+-*/ functions) but i am unable to get the program to show my answer.

attached is the program i typed. can someone help me out?

Code:

#include <stdio.h>
#include <stdlib.h>
double Addition(double num1, double num2){
return num1+num2;
}
double Subtraction(double num1, double num2){
return num1-num2;
}
double Multiplication(double num1, double num2){
return num1*num2;
}
double Division(double num1, double num2){
return num1/num2;
}
main (int argc, char *argv[]){
char sign;
double first_num, second_num;
printf("Type 2 numbers and an operation\n");
scanf("%lf %c %lf", &first_num, &sign, &second_num);
if (&sign == "+")
printf("%f\n", Addition(first_num, second_num));
else if (&sign == "-")
printf("%f\n", Subtraction(first_num, second_num));
else if (&sign == "*")
printf("%f\n", Multiplication(first_num, second_num));
else if (&sign == "/")
printf("%f\n", Division(first_num, second_num));
}