Question about Casio CFX 9850GA Plus Calculator

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The calculator casio CFX 9850GA was not turning on..

4 years the calculator mentioned was not used. after a year I have tried to replaced the battery that was drain after I have replaced but it was not turning on.. How can i solve this problem?

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Have not used Casio CFX-9850GaPlus in 4 years which was stored without it's 4 AAA batteries. My niece needs it for high school. I put new A batteries in yesterday then replaced the CR2032 backup battery today. The lighting is very poor and the colors not bright despite playing with the contrast. Any ideas?

Posted on Sep 12, 2009

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First:you must clean battery compatrment in direction of contact point with good contact cleaner from any electronic store near you or from radio shack.
second:clean power switch with contact cleaner.

Posted on Feb 29, 2008


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Posted on Jan 02, 2017

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1 Answer

I need to make a graph on my CASIO CFX-9850Ga PLUS

Turn calculator [ON]. If you do not see the menu icons, press [MENU]. Use the arrow keys to highlight the [GRAPH] icon.
An entry screen appears where you enter the functions you want to graph.
On the first line you have Y1= . After the equal sign enter 2[x] [X, theta,T] + 1. When finished press [F6: Draw] Your graph appears on the screen. If you see the axes, but no graph, press [Shift][V-Window] and press [F3:Std] then [SHIFT][QUIT] will take you back to the screen where you enter the functions to draw. There press [F6:Draw].

Hope it helps.

Jan 28, 2009 | Casio CFX 9850GA Plus Calculator

1 Answer


Turn the batteries over? i guess

Jan 24, 2009 | Casio CFX 9850GA Plus Calculator

1 Answer


Here is the link to the user s manual.
Hope it helps.

Dec 18, 2008 | Casio CFX 9850GA Plus Calculator

1 Answer

Trigometric circular functions..

No the calculator cannot convert decimal values into excat values.
Hope it helps.

Nov 09, 2008 | Casio CFX 9850GA Plus Calculator

1 Answer

I need to find standard deviation on my casio cfx-9850ga plus calculator

You need to pick a type of distribution, and you can of course use the local radius for the center of mass or Cho as well. sx is probably in the alpha or alternate key functions, unless you want sy or course, or need to translate sy back into the variable it produced your distribution from.

Jun 23, 2008 | Casio CFX 9850GA Plus Calculator

1 Answer

How do I get an 'x'?

Use the key [x, theta, T] below the [Alpha] key, or use [ALPHA] [+] (x)
Hope it helps.

Nov 19, 2007 | Casio CFX 9850GA Plus Calculator

2 Answers

Casio cfx-9850gb plus

In it's back, there is a small hole-reset key. prick it with your pencil.

Nov 11, 2007 | Casio CFX 9850GA Plus Calculator

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