To be fair to math symbols, code is read often by programmers, especially programmers of the language you're writing in. For things that get used a lot, short symbols are fine, because everybody reading the code will have seen a lot of the relevant syntax.

Otherwise it would be like asserting that programming would be better if we eschewed all specific jargon. Why say "bit" when we can say "single digit for which there are only 2 possible values"?