CALCULATOR

                                                CALCULATOR

#include<stdio.h>
int main ()
{
  int choice;
  float a, b;
  float sum;
  float difference;
  float product;
  float quotiont;

  printf("This program adds, subtracts, multiplies, and divides.\n");
  printf("**************\n");
  printf("* Calculator *\n");
  printf("**************\n");
  printf("Enter an expression: ");
  scanf("%f %f", &a, &b);
  scanf("%f %f %f %f", &sum, &difference, &product, &quotiont);

  sum = a + b;
  difference = a - b;
  product = a * b;
  quotiont = a / b;

  if(a + b)
      printf("Answer = %f\n", &sum);
  else if(a - b)
      printf("Answer = %f\n", &difference);
  else if(a * b)
      printf("Answer = %f\n", &product);
  else if(a / b)
      printf("Answer = %f\n", &quotiont);
  else
      printf("Error");
}