Question about Casio CFX 9850GB Plus Calculator

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When I graph sin theta on a Casio CFX-9850GB PLUS color graphing calculator, it keeps giving the incorrect graph. I probably have a setting incorrect, but since it is a secondhand graphing calculator, I am not sure. How do I get it to give the correct graph?

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  • Casio Master
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What does your graph look like? Do you have the proper angular mode set?

Posted on Jan 08, 2013

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SOURCE: casio cfx-9850gb plus calculators's graph messed up

Press the RESET button on the back of the calculator. Use a starightened paper clip.

Posted on Jun 23, 2010

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1 Answer

X= disappeared from the Y=


You have several types of graphs
Function graphs
Y_1=f(x), Y1=3X^2-4, [X, T, Theta, n] key types X
Polar graphs r=F(theta), r=r_o*ln(theta). [X, T, Theta, n] types Theta
Parametric graphs X_1=f(T) and Y_1=g(T). [X.T, Theta, n] types T
Examples: X_1= cos(T). Y_1= 2(1--sin(T))
Sequence graphs u_n+1= f(u_n), [X,T,Theta,n] types n

Nov 21, 2013 | Texas Instruments TI-84 Plus Calculator

1 Answer

X= disappeared


You have several types of graphs
Function graphs
Y_1=f(x), Y1=3X^2-4, [X, T, Theta, n] key types X
Polar graphs r=F(theta), r=r_o*ln(theta). [X, T, Theta, n] types Theta
Parametric graphs X_1=f(T) and Y_1=g(T). [X.T, Theta, n] types T
Examples: X_1= cos(T). Y_1= 2(1--sin(T))
Sequence graphs u_n+1= f(u_n), [X,T,Theta,n] types n

Nov 21, 2013 | Texas Instruments TI-84 Plus Silver...

1 Answer

How to use casio 9850GC PLUS to solve equations in polar form?


Put the calculator in Equation solving mode. Select F3:Solver. Enter your equation; use X as unknow (no need to use Theta, the name of the variable is irrelevant.) Besides if you use theta you will get a syntax error.

Jun 29, 2012 | Casio CFX 9850GB Plus Calculator

1 Answer

When i am graphing and I enter- Y1=Sin(theta) it does not graph it and says syntax error


When drawing function graphs of type Y1=, the name of the independent variable should be X
For polar graphs r=.., the independent variable is theta, while for parametric graphs it is T
To enter the default independent variable, press the key marked [X,Theta, T] . It will type in the correct name.

Sep 18, 2011 | Casio FX-9750GPlus Calculator

1 Answer

Defining the domain of the function to be graphed using casio cfx-9580g plus


One simple way to define the domain to be graphed is to set the limits of the domain as the Xmin and Xmax dimensions of the window.

Jun 19, 2010 | Casio CFX-9850G Plus Calculator

1 Answer

How do I change the mode to polar on my CFX 9850GB Plus Calculator?


  1. Turn calculator ON
  2. If you do not see icons press the [MENU] key.
  3. Use the arrow keys to move focus on the [RUN] icon.
  4. Press [EXE]
  5. In RUN screen press the [OPTN].
  6. After you press the down key once you highlight the line "Func Type"
Here is what you see.
8f8f783.jpg

The polar graph type is set by pressing F2:r=. In general r=f(theta). After the F2 key is pressed the Function type changes to r=

1ce8a0f.jpg

Now, if you press the MENU key and use arrows to focus on and select GRAPH, the function entry screen looks as in the picture below (without the 2cos(3theta))

824a5b3.jpg
After you enter the function (use the (X, theta, T) key below the [ALPHA] to enter the theta variable) press EXE to validate.
After drawing the r1=2cos(3theta) curve I opted to change the function to r1=2cos(5theta)
e206d98.jpg

Press F6:Draw to draw the graph. Here is what you get.


e0b8089.jpg

Enjoy.

May 05, 2010 | Casio CFX 9850GB Plus Calculator

1 Answer

Casio cfx-9850gb plus calculators's graph messed up


Press the RESET button on the back of the calculator. Use a starightened paper clip.

May 05, 2010 | Casio CFX 9850GB Plus Calculator

1 Answer

I dont know how to graph


Hello,
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.

Sep 21, 2009 | Casio CFX 9850GA Plus Calculator

1 Answer

I need to find out how to graph fuctions and the derivatives using a cfx 9850gc plus ASAP


Hello,
Let us start wih the derivatives. To obtain the values of derivatives at points on a graph, you must set Derivative to ON
Press [AC/On] to trun calculator on. If you do not see the icons press [MENU], with arrows select [RUN] and press[EXE] . The screen clears.
Press [SHIFT][SETUP ] . The first few options must be set as follows
Mode : : Comp
Function Type : Y=
Draw Type : PLot
Derivative : ON This is the one to make derivatives visible
Angle : Rad unles you have to use degrees.
Coord : on if you want the x,y coordinates to be displayed
Grid : Off
Axes : ON to display x and y axes
Press [EXE] to save options. You are taken to [Run] screen.
Press [Menu] Play with arrows to select [GRAPH] and press [EXE]

You see a list Y1=, Y2= and so on
On the line Y1=, enter [SIN] [X,Theta, T] .
If function is complicated you may have to enter parentheses sin(X). When you finish to enter the functions you want to draw, hit [F6:Draw]
The graphs are displayed.
Press [F1:Trace] The trace function allows you to move cursor along the curve, while it displays the coordinates of the cursor. And since you set Derivative to ON, the trace displays also the value of the derivative of the curve at the position of the cursor.

There are other intersting tools, under [Sketch] and [G-solve ] such as minimum, maximum, tangente, inverse of the function drawn, integral under the curve, intercepts with the coordinates axes, etc. I will not spoil your fun by giving you the plot of the movie.

Hope it helps.

Mar 27, 2009 | Casio CFX-9850G Plus Calculator

1 Answer

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


Hello,
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

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