If you got this assignment back, what would you do?
RiderOfGiraffes: The fact that you have things like "In[5]" and "Out[8]" makes it look like you've used the computer to perform your calculations.  Whether you did or not is moot - you are giving the wrong impression.  (Unless you did use the computer, in which case you are giving the right impression and the grader is right anyway).It's not going to be the typing of your solutions, it's the impression that you've used something other than paper and approved calculator.  And now you've created that impression, it may be too late to correct it.It's your responsibility to make it absolutely obvious.