Chromatose
Squid pro quo
Quick searches show that different style guides believe different things, so it would seem there is no set rule.
Math has its own rules, English you can do whatever you want.
edit: Actually it would seem that the "best" way to do it is to avoid nested parentheses altogether, as it's completely unnecessary. That would be why these guides don't deal with it.
Math has its own rules, English you can do whatever you want.
edit: Actually it would seem that the "best" way to do it is to avoid nested parentheses altogether, as it's completely unnecessary. That would be why these guides don't deal with it.