# CP300 Question

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### #1 PJay

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Posted 03 November 2003 - 04:05 PM

Can I draw "y=sin(x) , -2pi<x<2pi" to CP300 ? How ?

### #2 Overlord

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Posted 03 November 2003 - 09:00 PM

i don't understand the end of your message

### #3 2072

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Posted 04 November 2003 - 09:40 AM

well I corrected the end of his post, the "<"sign did not passed...

### #4 Lovecasio

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Posted 05 November 2003 - 01:31 AM

Hi PJ.
You can try this:
In y1 line, input: piecewise(-2pi < x < 2pi, sin(x), 0)

Then tap button to draw. It will appeare the graph of y=sin(x) within your range, although it will take more time.

### #5 PJay

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Posted 05 November 2003 - 01:13 PM

Thank You !
and can I get : " Df " , " Rf " for "y=x^2" with CP300 ?

### #6 Lovecasio

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Posted 07 November 2003 - 01:04 AM

What is Df and Rf ?

### #7 PJay

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Posted 09 November 2003 - 11:43 AM

What is Df and Rf ?

For example : If : f(x)=y=x^2+1 , Then : Rf = 1â‰¤x<+âˆž and Df = -âˆž

### #8 maurice1979

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Posted 11 November 2003 - 03:53 PM

He wants to know if he draw a graph of function y=sin(x) between -2pi and 2 pi
, I don't know hadn't tried it oot.
BTW
Is it possible to change yoyr axis values?

### #9 CrimsonCasio

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Posted 11 November 2003 - 03:55 PM

you should be able to do that in the view window options (scale, dot, etc...)

### #10 PJay

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Posted 11 November 2003 - 04:04 PM

you should be able to do that in the view window options (scale, dot, etc...)

Can you explain it more ?

### #11 CrimsonCasio

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Posted 11 November 2003 - 04:08 PM

sorry, I wasnt refering to you, I was answering the question about changing the axis values.

### #12 PJay

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Posted 11 November 2003 - 04:16 PM

### #13 Lovecasio

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Posted 12 November 2003 - 12:54 AM

I am sorry, PJ. I still dont understand it. It would be great if you explain more. May be I have not studied about Rf and Df yet. Can you write it ( Df and Rf ) in complete words?

### #14 coco

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Posted 12 November 2003 - 06:12 PM

Df stands for Domain of Function which is the set of allowable values that the independent variable (usually 'x' in a two var function) can take.

Rf stands for Range of Function which is the set of values that the dependant variable (usually 'y') can take.

Hope it helps

### #15 maurice1979

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Posted 13 November 2003 - 11:31 AM

Can you explain it more ?

settings-> View Window

### #16 maurice1979

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Posted 13 November 2003 - 11:34 AM

Df stands for Domain of Function which is the set of allowable values that the independent variable (usually 'x' in a two var function) can take.

Rf stands for Range of Function which is the set of values that the dependant variable (usually 'y')  can take.

Hope it helps

but now, how do you input f(x) = x^2 Df [-2,0]??

### #17 huhn_m

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Posted 13 November 2003 - 01:36 PM

thats how it works on the (A)FX/CFX

`Y1= X^2,[-2,0]`

thats it! try it

### #18 CrimsonCasio

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Posted 13 November 2003 - 06:51 PM

That gives me a sentax error...

### #19 UserC300

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Posted 13 November 2003 - 06:51 PM

Y1= X^2,[-2,0]
That doesn`t work.
Well, it says in the manuel(German, Chapter 2-4-11) that you should be able to do it with the "with"-Operator(|).
Like: y=sin(x)|-2pi or y=sin(x)|-2pi But it doesn`t work(Buck?), you can just type in one Option for x.
y=sin(x)|-2pi

### #20 UserC300

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Posted 13 November 2003 - 07:05 PM

The rest of the message before got cut off.
y=sin(x)|-2pi is working!

### #21 UserC300

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Posted 14 November 2003 - 01:29 PM

OK, sorry for taking so much space.

Here the solution:
`y=sin(x)|-2Pi<x|2Pi>x`

That works! Hope somebody is still interested.

### #22 CrimsonCasio

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Posted 14 November 2003 - 04:43 PM

yeah, thats great to know. thanks.

### #23 maurice1979

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Posted 14 November 2003 - 11:04 PM

Me too.
I only have it for about a week, and it take more than a week to learn to use it to it's fullest.
Anybody know some usefull tutorials??
I ones found one but didn't bookmark it and i can't check history, 'cause it wasn't my pc. What I found had animated gifs that show how to do things, quite usefull. Couldn't find that in the manual.

maybe the should add a few hundred more pages.

### #24 betoe

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Posted 14 November 2003 - 11:13 PM

Well i dont remember well but one time i download a basic and good CP tutorial, its a power point document. I think that i download that file from a french site. If you want it e-mail me and i will send you, but one thing: via hotmail i can send only 1MB . If you use AIM or MSN add me to your contact list and i will send the file to you.

### #25 maurice1979

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Posted 14 November 2003 - 11:51 PM

Is it in french?
cuz, my french is real bad, my german is even better...
ok i'll give you a mail, it can hold a few MB's .

### #26 betoe

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Posted 15 November 2003 - 03:09 AM

English document, but with good examples.

### #27 UserC300

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Posted 15 November 2003 - 08:27 AM

CP300-Tutorial-English
or go to the site

### #28 maurice1979

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Posted 15 November 2003 - 10:55 AM

CP300-Tutorial-English
or go to the site

17.6 MB
:/ I don't think it'll fit into a floppy... <_<

looks like I'll have to visit a someone with a cd-burner and fast internet
i'll go have a look see.

### #29 UserC300

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Posted 15 November 2003 - 05:34 PM

This is a Link to the german Casio-Support for Graphic-Calculators.
Casio-Support.de
They have some hints, for example:

Hinweise: Da der ClassPad 300 bei Verbindung mit einem PC ?ber den USB Port die notwendige Leistung ?berwiegend ?ber den USB Port bezieht, kann man somit eine longere Batterielebensdauer erreichen, wenn bei Betrieb vom ClassPad das USB Kabel am PC angeschlossen ist. Sie brauchen dabei einfach das Kabel anzuschlie?en, eine Verbindung ?ber das Programm ClassPad Manager ist nicht notwendig.

They say, that the Classpad gets most of the power over the USB Port when conected, saves batteries.

### #30 Lovecasio

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Posted 16 November 2003 - 04:58 AM

Can someone explain the "Save power mode" ? What is it benefit (I read it in the manual but I still dont understand).
Oh PJ, I afraid that ClassPad cannot do Rf and Df.

### #31 CrimsonCasio

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Posted 16 November 2003 - 05:03 AM

powersave happens when you dont use the classpad for an amount of time (you can set it), when it happens it will shut the classpad donw compleatly and you will need to recalabrate the pen and set the contrast (etc...), if you were in an application you will have exited it and will be in the main menu, the advantage is that the classpad's batteries will last longer.

### #32 UserC300

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Posted 16 November 2003 - 10:01 AM

In Powersave-Mode, Classpad saves everything to the FlashROM wich needs no power to store the data.
Never had that:"recalabrate the pen and set the contrast (etc...)" after Powersave.

### #33 Lovecasio

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Posted 16 November 2003 - 11:25 AM

Thanks. I understand

### #34 UserC300

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Posted 16 November 2003 - 05:29 PM

Do you know, if there is an Casio-Basic Reference available beside the Cp300-Manual?
What Command is the replacment for
a=b=>c ?

### #35 CrimsonCasio

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Posted 16 November 2003 - 05:31 PM

in my off time I'm making a e-activity on programming basic, the replacement for that is:

If a=b
Then
c
EndIf

### #36 UserC300

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Posted 16 November 2003 - 05:59 PM

Ja, I thought so. I find it a bit to complicated for this little testing. They should have kept the old one.
An e-Activity for Basic-Reference would be great!

### #37 Andy.Davies

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Posted 16 November 2003 - 06:58 PM

do u wanna make one for ASM/C aswell?

### #38 UserC300

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Posted 19 November 2003 - 08:02 PM

Is there a way to find out if a Variable is defined?
Like:
If A=Undefined/Defined (or A[8,6]=Undefined/Defined)
Then
...
...
...
IfEnd

### #39 CrimsonCasio

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Posted 19 November 2003 - 09:25 PM

use get type:

GetType Var,Res
StrComp Res,"NONE",isdef
if isdef=0
Then
Print "Not Defined"
EndIf

### #40 betoe

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