So I was just sitting here thinking, it would be a nice shorthand tool to be able to say this:
if(a == c ± 3)
instead of this:
if(a <= c - 3 && a >= c + 3)
And I sat there thinking, man, has no one even thought of this before? I mean the whole range-of-acceptable-values if statement gets used over and over. It would be nice to be able to almost cut the typing for it in half and make it easier to wrap your head around. Is there some reason why nothing like this exists in any language?