A real issue using Fortran 95

Dear Silverfrost Community: I believe that this would be a better way of stating my issue. I apologize for not putting it this way sooner.

I am trying to write an answer to the above exercise using the Silverfrost FTN95 Express compiler:

Write a program that reads in an integer and outputs a statement telling whether or not the integer is evenly divisible by 3. If this integer is not evenly divisible by 3, the program should output the remainder obtained when the number is divided by 3. Use a compound statement inside an IF-THEN-ELSE construct.

Could I use the MOD intrinsic function in writing the answer to the above exercise and, if I can, how do I do this? Thank you.

                                          Best regards,
                                          Carl Mesaros

Whether you are allowed to use the MOD function or not is a question that you should direct to your instructor.

The purpose assigning such simple homework problems is to give you a focus for reading your text book or Fortran manuals. Instead of asking for a solution, you should think about the problem, make an earnest attempt to solve it and, if you do not succeed, show what you have done and ask some specific questions. Then use the replies that you may receive to complete the solution.

Dear mecej4: This question arises honestly from self study. I am not formally associated with any school. Thank you. 😃

                                                  Best regards,
                                                  Carl Mesaros

With or without MOD(), the task that you described can be programmed in about ten lines of code. You have the compiler. You don't have an instructor who is limiting what constructs you can use. I suggest that you write and try out various versions of the program. Even when one of those versions is not working correctly, there may be some good points that are worth observing. You will learn something quite useful about integer arithmetic.