Casio FX-115ES Advanced Scientific Calculator with 2-Line Natural Textbook Display

List Price: $20.99 Discount Price: $15.56

Features:

• 279 functions, including 40 metric conversions
• 2-line, 12-digit Natural Textbook display
• Solar Plus power with battery back-up
• Slide-off protective hard case
• Currently permitted on AP, SAT and PSAT/NMSQT

Customer Reviews:

Always love Casio [Posted on 2008-03-15]
I've used Casio scientific calculators for many years. They're very durable, and especially suits a user who needs a scientific calculator without graphical functions. The display is also very explicit.

Not the most intuitive [Posted on 2008-04-05]
It's really a pretty cool calculator, but I do have a couple of gripes. First, the "book" that comes with it is pretty crappy, although it does contain all of the information if you take the time to dig through it. I found that your better bet is to go online and find it. At least then I can zoom it so that I can actually read it.

Second, the default setting displays all answers as improper fractions, so if you enter 5/4 you get a result of 5/4. Gee thanks, that's helpful. After several minutes of jacking with it and digging through the book, I finally found a section buried way down in the middle that shows how to switch the display to decimal (the S<>D button). I'm sure that this might have been obvious for seasoned scientific calculator users, but not for first time buyers.

Now, once you get past some of the quirks, it is a pretty good calculator. I like the textbook display. And for $18 (at Target), you can't beat it.

good description and arrived quickly [Posted on 2008-04-21]
This one isn't as fancy as the graphing calculators but it has a lot of the other main functionalities for geometry and trig and pre-cal, and even some calculus.

Great calculator, bad price [Posted on 2008-05-04]
It's 5 bucks cheaper at Target, PLUS you don't have to pay for shipping, and it won't take 2+ weeks to get to you!!! It's an awesome calculator, tho I have trouble adjusting to the button placement, having always used TI calculators. Amazon took their sweet time getting it to me; by the time I got it, I didn't need it anymore. So much for getting it by the "expected arrival date" or whatever...

Does what it is supposed to do... [Posted on 2008-05-09]
Casio has been making calculators since the abacus was replaced (even tho it is still being used in some places, like MIT) so it is not surprising that this device works very well and does what it is asked to do.

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