Casio FX 991 ES technical-scientific calculator: Casio

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  • Good calculator for study.  

    Casio FX 991 ES technical-scientific calculator (optional)
    Has helped me to pass the exams in math. Many ways by which you can save a lot of time. Good computer.
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  • High School relief!  

    Casio FX 991 ES technical-scientific calculator (optional)
    I chose this model because I was no longer satisfied with my old calculator. After some research and the positive reviews I decided to buy it. I am currently doing a diploma in technical education where Math and formulas play an important role. My ol
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  • Prima computers, but not for FOS / BOS technology!  

    Casio FX 991 ES technical-scientific calculator (optional)
    Did this computer now for several years and am completely satisfied! I used to use it for vocational schools and he is more than enough! Now I'm on the Berufsoberschule and may use this calculator due to some additional functions neither homework nor
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  • Very good, but "only" the number 2!  

    Casio FX 991 ES technical-scientific calculator (optional)
    I could not decide between the 991 and the Casio Sharp EL W 506, so I ordered both to compare - it can only recommend, because you have to get used to the operation already when the last TR 10 years ago bought and Sharp and Casio are yet different. F
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  • Very good calculator, unfortunately a bit slow!  

    Casio FX 991 ES technical-scientific calculator (optional)
    Probably the best and most distinctive feature of this calculator: The display that functions written down as I on my list! No more long lines in the calculators, where you would never find a mistake, because the chaos would be too big! Everything is
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