Question about Casio FX-9860G Graphic Calculator

# Casio fx-9860g Slim won't draw graph in GRAPH

I'm learning how to use the fx-9860G Slim Graphic Calculator.  I'm following the example in the manual to graph y=3x^2. I enter graph from the menu, input 3, x theta T, x^2, exe.  Then I hit F6, draw.
The calculator flashs the function at the top of the display screen and then a thick dark line appear across the bottom of the screen.  This happens in conics, too.  But I can get it to draw plots in the STAT mode.  I've changed the battery and poked the P key.
What am I doing wrong?

Posted by on

get battery out-and install it again(after you return the battery)

Posted on Jul 07, 2008

Unless I am failing to understand your problem, just combine like terms to get:
9x^2+2x+4 and then enter those coefficients into the quadratic solver.
That will get you the two answers -- both of them will be complex.
If you wanted to turn those two answers into factors (complex) of the original equation simply
change the signs on each and put an x in front.
Of course, the quadratic formula would also work.
CG

Posted on Apr 28, 2009

Hello,
[OPTN][LIST] scroll right till you find %. Press the function first then the number. It gives you the percent.
Hope it helps.

Posted on Oct 01, 2009

SOURCE: solve comlex equation

Hello,
I do not understand what you mean by solve complex equations, but if you want to manipulate complex numbers here are the tools you need to enter your complex numbers. Operations and function evaluations do not need special symbols.

Hope it helps.

Posted on Oct 01, 2009

The random number generator function is called Ran# and can be accessed in RUN mode by pressing:
[OPTN] [F6] [F3] (PROB) [F4] to access the (Ran#) function
In the paragraph above, the bold text in square brackets indicates key presses, while the text in parentheses represents the menus that appear at the bottom of the calculator screen. This also assumes there are no menus on the bottom of the screen when you begin. If PROB is already on the screen, then the [F6] key is not necessary, just press [F3] then [F4] at this point.

The Ran# function generates a random decimal number between 0 and 1. If you need to generate a number with a higher range, then there may be extra steps involved. For example, to choose a random number between 0 and 100, you would enter:
Ran#×100 or Ran#(100)

Let's say you want to simulate a dice roll, where you get an integer between 1 and 6. Your first step would be to do:
Ran#×6
This will give you a random decimal number between 0 and 6. But we need an integer, not a decimal. To make it an integer, you would change this to:
Int(Ran#×6)

Press [OPTN] [F6] [F4] (NUM) [F2] to access the (Int)

This now gives you an integer between 0 and 5. We just need to add 1 to the result.
Int(Ran#×6)+1
The result should be an integer between 1 and 6.

Posted on Jul 25, 2010

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