It has added functions that I've heard were removed from the US version so that the calculator would be allowed for certain curriculum / exams.Īccording to the Casio International website, the FX-991EX has 552 functions and the Casio Europe website shows the FX-991DEX version as having 696 functions.Īll in all an great calculator for very little money with the nicest display I've seen yet on a solar powered calculator. There is a German version known as the FX-991DEX that is available from Europe. For everyone else, I highly recommend this calculator for it's ease of use and sheer functionality.Īlso of note to those considering this model: The calculator doesn't have RPN (Reverse Polish Notation), so if that is something that is important to you, condsider buying an HP instead.
While this is not a CAS (Computer Algebraic System) calculator, it is very capable of solving simu ltaneous equations, working with complex numbers, and handling matrix and vector math.Ĭompared to the FX-115ES that I had before, the FX-991EX is several times faster, so they have upgraded the processor on this one, yet it is still able to run off solar power when needed.
Use a soft, dry cloth to clean the exterior of the calculator. Never press the keys of the calculator with a ballpoint pen or other pointed object.
Each mode (matrix, vector, statistics, etc.) has its own contextual features which are found in a menu displayed with the options button (OPTN).Įquations can be entered just like you would in a textbook, including integrals, derivatives, summations, proper and improper fractions, and more. Avoid carrying the calculator in the pocket of your trousers or other tight-fitting clothing where it might be subjected to twisting or bending. The most used functions are the most accessible with a single button press, followed by slightly lesser used functions using the SHIFT key. If you've used the FX-300 / FX-115 ES or ES+ models before, you should feel right at home. I've owned quite a few different calculators over the years and have found that the Casio models in particular are very easy to use. Intuitive interface, crisp display, and solar powered too! :-) Casio fx-21.The best non-graphing calculator I've seen yet. Casio FX-991ES Plus Scientific Calculator Original Brand New In Box 991es fx casio calculator plus scientific CASIO FX-300ES PLUS-PK Fraction & Scientific Calculator (Pink) | EBay 300es CASIO FX-115 ES PLUS NATURAL V.P.A.M 2 WAY POWER SCIENTIFIC CALCULATOR Casio Fx-300ES Plus Scientific Calculator BUNDLE With SL-300SV Bonus 300es fx Casio Fx-300MS PLUS Scientific Calculator Teacher Office Math FX300MS casio 300ms Casio Fx-21 - casio fx calculator New Sealed Casio FX-300ES Plus Scientific Calculator 79767900809 | EBay 300es Casio FX-300ES | EBay Casio 300ms. 8 Pics about Casio FX-991ES Plus Scientific Calculator Original Brand New in Box : Casio fx-300ES Plus Scientific Calculator BUNDLE with SL-300SV Bonus, Casio FX-300ES | eBay and also Casio fx-300ES Plus Scientific Calculator BUNDLE with SL-300SV Bonus. Casio FX-991ES Plus Scientific Calculator Original Brand New in Box.
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