I and two other student, did a course project and it has been accepted for publication in an international conference. I am confused now that whether I should add his name as a co-author or acknowledge him in acknowledgements ? I would like to share that though, the entire implementation and writing the paper was done by us, we were student of his class and the work was produced as a part of course project.
My field is Computer Science.
Edit: As F'x suggests, that I should ask the instructor. What would be an appropriate way to do so given that his name was not added as co-author before acceptance.(We were confident about the work but were not sure about the acceptance. The conference management software was EDAS and it spams email of all co-authors which we wanted to avoid in his case)