Ceiling function on TI-84 Plus

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I am the owner of a TI-84 Plus CE-T and recently I was trying to solve a problem in which a ceiling function was required. I could not find an option to do this in the mats menu, or any of the other menus and I was wondering if this function is present at all on this calculator.

I did manage to find a floor function masked as int(x) and therefore was wondering if it has some alternate name that I am not accustomed to.

If no such function exists, how would one go about implementing one?

$\endgroup$ 2 Sorted by: Reset to default

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