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My casio s/c fx83ES does not have an INV button. Can you help me

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I depends on what you mean by INV.
On some Chinese (AUREX, Staples) calculators the second function key is marked as INV. If that is the key you have in mind, on Casios it is the [SHIFT] key. On Sharps it is marked as [2ndF]

If you have in mind the multiplicative inverse (the reciprocal) then your calculator has such a key and it is marked [x^-1]. It the key represented on the following table at the intersection of the 2nd column and the 9th line (RECIPROCAL)

my casio s/c  fx83ES - dc4ae01.jpg

If you are thinking about the inverse of functions, then know that each function shares the same physical key as its inverse. For example to access the arcsine (the function inverse of sine) you press the [SHIFT] key before [SIN]. On the calculator you will notice that near the [SIN] key and to its left there is [SIN^-1].

Posted on Aug 24, 2010

  • k24674 Aug 24, 2010

    OOPS "I depends" should read "It depends"

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Inv of ln is exponential (e^x)
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How do I calculate inverse logs on casio fx-82au plus?


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c98804b8-f45c-4c53-8a2f-85939a985fdd.png

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Casio FX83ES Scientific Calculator 83gt, calculator back to normal settings?


Clear the calculator.
Press [SHIFT][9] (CLR) or [SHIFT][MODE] (Setup) 8:Norm and choose Norm1 or Norm 2. Select the number of digits.

6a6a11e6-0090-4c10-b6df-035a1d731850.png

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(1.1)10


The keystrokes for a Casio FX83ES for (1.1)10 is [(] [1] [.] [1] [)] [x] [1] [0] which should give you 11.

Mar 11, 2011 | Casio FX83ES Scientific Calculator

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HOW DO YOU PUT IN DEGREES AND MINUTES WHEN YOU ARE DOING TRIGONOMETRY?


The manual for your calculator can be found here: http://support.casio.com/pdf/004/fx-82ES_83ES.etc_Eng.pdf

To input a sexagesimal value [this is another word for Degrees/Minutes/Seconds], you need to follow the instructions on page E-21 of the manual.
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I hope this was helpful. Good luck!

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