Huh. All these years I've never thought to do that, always thought it was just a four function calculator.

Even the scientific calculator would look pretty silly blown up that large though.

IIRC phone-mode apps that allow it can run on an iPad in a framed mode so they don't look too weird. I get why they don't do that with the calculator because it'd be "poor UX" but "what do you mean I spent $1200 on this and there's no fucking calculator, my Apple phone and laptop both have one, you mean I gotta go sort through the app store to find something that's not gonna show me ads, then probably pay some more money on top of that $1200, to get a calculator, I mean there was one in Windows 3.1 FFS" is even worse UX.

You can just pull down the universal search bar and type your sum there (as I just learned in this thread).