Is this really a language question, Glizdka? I think a moderator would have good reason to transfer it to the discussions forum.

I don't think many of us understood that those numbers were 'weird and illogical', but I suppose that in a sense they are. Personally, I don't like to think of Pi as a number at all—it's just a ratio. Mathematicians like to think of everything as numbers, for operational rather than philosophical reasons. They even think of zero and infinity as numbers when it suits them—which I think seems silly to many non-mathematicians.