Simple Calculator

Simple Calculator

#include <stdio.h>

void main()
{
double number1 = 0.0;
   double number2 = 0.0;
   char operation = 0;

   printf("\nEnter the calculation\n");
   scanf("%lf %c %lf", &number1, &operation, &number2);

   switch(operation)
   {
    case '+':
      printf("= %lf\n", number1+ number2);
      break;

      case '-':
      printf("= %lf\n", number1 - number2);
      break;

    case '*':
      printf("= %lf\n", number1 * number2);
      break;

      case '/':
      if(number2 == 0)
          printf("\n\n\aDivision by Zero #ERROR!\n");
         else
          printf("= %lf\n", number1 / number2);
            break;

      case '%':
      if((long)number2 == 0)
          printf("\n\n\aDevision by Zero #ERROR!\n");
         else
          printf("= %ld\n", (long)number1 % (long)number2);
            break;

      default:
      printf("\n\n\aIllegal operation!");
   }
}

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