I am beginning to use the computer algebra system Magma heavily. I am spending a lot of time with its documentation (which is wonderfully organized and clear), but am very much hoping that there is a forum on the StackExchange network appropriate for questions of the form, "how would you do such-and-such a calculation in Magma?" since some of what I want to know has so far been very hard to extract from the documentation.
I have used Math.SE in the past for a question about algorithm design which I implemented in Magma, but the questions I want to ask now are not about algorithm design, just very nuts-and-bolts questions about the language and functionality of Magma. I asked my first such question on Math.SE last night; it hasn't attracted any answers or comments, and perhaps this is because it's less than 12h old, but maybe also because it is not really a math question at all but just a question about the use of a particular CAS. We have a magma-cas tag here, and questions of this type have been asked and answered before, but not so frequently, and they have also sometimes been closed as off-topic.
A propos of this meta question, I see that StackOverflow has tags for both GP-PARI and Sage. I have never used StackOverflow before since I am not a programmer, but this does make it seem like StackOverflow is an appropriate place for questions about execution of tasks in specific CAS's. On the other hand it doesn't have a magma-cas tag. It has a magma tag but it's referring to this rather than the CAS, although some of the questions under the tag are about the CAS. I think only one such question (under the magma tag, about the CAS) has been answered.