I've always been annoyed that mathematicians are stuck on one letter variable names. Worse, when they ran out of letters instead of rethinking the policy and considering descriptive variable names they instead decided to use foreign alphabets instead.

Regular mathematical notation is like what you would get when you run a program through one of those obfuscators that blows away all of the comments and whitespace, reduces variables down to a single letter, and renames all of the functions to single letters.

But we can't change it because it would confuse all of the existing mathematicians who spent years memorizing all of the quirks of the system.