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# Adjust contrast casio fx 83wa calculator

Casio

Posted by Anonymous on

Hi,
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Posted on Jan 02, 2017

Posted on Jul 18, 2008

In any scientific calculator log2(n) can be  calculated with either ln or log function as follows

Log2(n)= ln(n) / ln(2)

Or
Log2(n)=log(n) / log(2)

both will give nearly the same answers

Posted on Apr 24, 2009

Hello,
You should know that you cannot enter something like sin^2(x) as you would by hand. So you must use parentheses: ( sin(x) )^2. If you do that there is no ambiguity. The calculator evaluates the sine because parentheses are evaluated first, then it takes the square.

So 4[x][(] [SIN][(] 60 [)] [)] [Xto the 2] [=] result is 3/

Since you do not say what model you use, what I entered may not be appropriate: the parentheses inside the sine function may not be needed. In the new Casio the first parenthesis inside the sine is supplied by calculator, but the closing one must be entered by the user.
Hope it helps

Posted on Sep 17, 2009

it should...

it can be found by SHIFT then MODE then SCI is the one you want to choose

Posted on Jan 21, 2010

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### Number does not appear

Batteries may be depleted. If calculator uses Solar power, expose the solar panel to daylight. On the newer Casio, contrast can be adjusted. Press SHIFT MODE (setup) and look for <CONT>.

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### Hello , I seem to have a problem with my casio fx~9750GII module calculator. When I turn on my calculator , it stays frozen on the MAIN MENU set i.e consisting of RUN-MAT,STAT,GRAPH,DYNA,TABLE,RECUR,CONICS...

Checking the batteries is the first thing one should try. It is possible that for some reason the screen may be too dim.
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### How do you change the contrast screen from dark to light

From the main screen, select the "CONT" icon and press EXE. Use cursor-left/right to adjust the contrast. When done press MENU to exit.

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Press SHIFT MODE down-arrow 6. Use the left- and right-arrows to adjust the contrast. Press AC when done. If you can't get the contrast high enough to be easily readable, the battery might be low---try replacing the battery.

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### Im not sure how to put the formula 4 sin squared x 60 into my casio fx-83wa calculator it keeps saying syn error please help

Hello,
You should know that you cannot enter something like sin^2(x) as you would by hand. So you must use parentheses: ( sin(x) )^2. If you do that there is no ambiguity. The calculator evaluates the sine because parentheses are evaluated first, then it takes the square.

So 4[x][(] [SIN][(] 60 [)] [)] [Xto the 2] [=] result is 3/

Since you do not say what model you use, what I entered may not be appropriate: the parentheses inside the sine function may not be needed. In the new Casio the first parenthesis inside the sine is supplied by calculator, but the closing one must be entered by the user.
Hope it helps

Sep 17, 2009 | Casio Office Equipment & Supplies

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