WTB: Scientific Calculator

There are apps and websites that emulate them, FYI.
That's what I do...

I am an old school HP48 user...once you go RPN, you don't like the other way. The last one I had I wore out the buttons. Now I just have an HP48 emulator on my phone. Beats the crap out of the regular calculator.
 
Every reasonably modern smartphone has scientific calculator capabilities built-in.

For a standalone calculator, unless she really needs graphic capabilities (in which case you're better off using a computer), then the good ol' TI-30 series does just fine, at a cost of 10 bucks from Wal-Mart, etc. You can also find them for 7 bucks or less, shipped, through eBay.
 
I think I have a couple around the house that are three or four years old. Can check what I have after the kids get back from work.
 
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