I appreciate people taking the time to show how a problem can be solved using a computer (I have done it myself several times) and, honestly, I do not see why they should be deprived of the little symbolic recognition that a few rep points mean; it is often not a trivial task to coerce a computer to do what one wants. Not everyone knows how to do this, quite a few are not even aware that it is possible to do it (specially in more elaborate areas, like commutative algebra and such), and one can learn quite a bit by being exposed to this information.
On the other hand, answers which simply give a number, as in this examplethis example, and not even an indication of how they were obtained, should not be CW but, IMO, simply downvoted.
