Question about Casio Office Equipment & Supplies
My calculator Casio fx-991ES PLUS can't display fully anything i typed on. They always are being cut off and show only like a quarter because of the bar on top, below the menu, that blocks the characters i type. what might have i pressed that did that and how to undo it if ever. or what's wrong in my calculator. how could i resolve it?
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Posted on Jan 02, 2017
SOURCE: mode change
Just so that we know what we are talking about. The natural display is the display mode in which fractions appear on two lines, radicals appear as radicals, log can be calculated in any base, etc. If that is what you understand by Natural Display, we are in agreement.
To set this mode, you turn calculator ON and press [SHIFT][MODE] (setup). The option is called MathIO, and it has the number 1.
Hope it helps.
Posted on Oct 13, 2009
SOURCE: Casio fx-991ES, how to calculate
At a blank screen, enter your IRR formula in terms of the variables using ALPHA and ')' for variable X. For example: -1000 200/((1 X)^1) 200/((1 X)^2) ... rest of subsequent years. Then, press CALC. It will prompt you to enter values of your variable (X in this example). Don't worry if there's already a value displayed - this is just the most recent value that has been stored as that letter. Simply enter your value (in terms of your IRR guess) and then press [=]. You will have to repeat this for each IRR guess until you reach almost ZERO.
Posted on Sep 19, 2011
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