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#281 Filip Georgijev

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Posted 30 January 2006 - 12:48 PM

OS version 3 will feature parametric graphing of 3D surfaces. However, I think that we shall have to wait for some time to see whole (not half of them!) cylinders and spheres on the screen of our ClassPads. About the time you start eActivity, it only depends on the amount of the free memory you have in the ClassPad MCS. You see, this application is the only one in the ClassPad OS that has to fully emulate a new ClassPad over the existing one - it has to recreate a settings file and change the MCS structure. The same situation like in the ordinary PCs-the more free (real or virtual) memory you have, the faster the applications run... See you!
P.S. Reset the ClassPad RAM and it will need only a couple of seconds to run the eActivity. On the contrary, fill up the whole RAM (with my programs, for example!) and wait 20 seconds until you can do anything. Bye!

#282 MicroPro

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Posted 30 January 2006 - 01:45 PM

OS version 3 will feature parametric graphing of 3D surfaces...

Excuse me, but how do you know?
I will be thankful if you tell me... is it another site releasing manuals about version 3.00?
Bye...

#283 Guest_pabloec20_*

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Posted 09 March 2006 - 04:01 PM

a software like the ones in some pda the recognices handwriting individual letters isntead of having to type them with the stylus

#284 Kilburn

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Posted 09 March 2006 - 04:23 PM

Why not ^^ We'll try to write some handwriting programs, so.... But we're actually working on a Super Mario game.

#285 Orwell

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Posted 09 March 2006 - 08:21 PM

Why not ^^ We'll try to write some handwriting programs, so.... But we're actually working on a Super Mario game.

Please, the suggestions here concern everybody, not only the CAPS team.
And stop speaking about this project everywhere, it's way too early for that <_<

#286 MicroPro

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Posted 14 March 2006 - 08:36 AM

Why not ^^ We'll try to write some handwriting programs, so....

Someone must find an open-source OCR program to translate... (Or disassemble Omni-page pro... :blush: Sorry!)

Windows didn't detected any keyboard. Press Enter to continue....

You must write "didn't detect" and not "didn't detected.


#287 -Tom-

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Posted 14 March 2006 - 12:31 PM

You must write "didn't detect" and not "didn't detected.

:D

#288 unique33

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Posted 14 March 2006 - 06:21 PM

Is there any way to transfer a Vector to a List ?

If there is no way so It should be added .

#289 SoftCalc

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Posted 21 March 2006 - 06:42 AM

Is there any way to transfer a Vector to a List ?

If there is no way so It should be added .

listToMat( and MatTolist( convert between a list and matrix.

#290 unique33

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Posted 21 March 2006 - 09:54 PM

listToMat( and MatTolist( convert between a list and matrix.


No. it is not the one that is in my mind.
I want to transfer a row of a Matrix to a List, the MatToList just can convert a Column of a Matrix to a List.

#291 SoftCalc

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Posted 21 March 2006 - 10:36 PM

No. it is not the one that is in my mind.
I want to transfer a row of a Matrix to a List, the MatToList just can convert a Column of a Matrix to a List.

matToList(trn(matrix),row)

if you know you're starting with a row vector you can simply do....

matToList(trn(matrix),1)

Here is a more memory conservative version for a matrix of any size. It trims down the matrix to a single column so "trn" doesn't have to do as much work.

matToList(trn(subMat(matrix ,row,1,row,element(dim(matrix),2))),1)

#292 unique33

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Posted 27 March 2006 - 12:57 PM

Thanks.

#293 Kilburn

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Posted 19 April 2006 - 03:53 PM

Some people reported that some functions doesn't appear in the Catalog when they select "All". For example, the piecewise() and solve() functions don't appear! :blink:

#294 SoftCalc

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Posted 20 April 2006 - 05:58 AM

Some people reported that some functions doesn't appear in the Catalog when they select "All". For example, the piecewise() and solve() functions don't appear! :blink:

I'd like to know what version of the OS they have. :blink: :blink:

#295 Kilburn

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Posted 22 April 2006 - 08:55 PM

Oops, sorry there was no problem... :blush: These "narrow-minded guys" influenced me <_<

#296 SoftCalc

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Posted 23 April 2006 - 03:20 PM

Oops, sorry there was no problem... :blush: These "narrow-minded guys" influenced me <_<

:lol: Well lets push the influence in the other direction. ;)

#297 Pawel_pl

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Posted 26 April 2006 - 01:43 PM

If somebody know someone who does OS to CP, will tell him that it doesn't calculate something like this:
solve({x+y=6,y^(3x+2y-1)=1},{x,y})
or:
TI vs ClassPad

Why is TI89 better with this mathematical problems than CP??
When will CP be better?

Does somebody know??

#298 The_AFX_Master

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Posted 26 April 2006 - 01:52 PM

Waiting and praying for new O.S 3.0... it should solve problems

PS: Any news about O.S 3.0 ??..in example: release date?

#299 PAP

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Posted 03 May 2006 - 12:29 PM

If somebody know someone who does OS to CP, will tell him that it doesn't calculate something like this:
solve({x+y=6,y^(3x+2y-1)=1},{x,y})

Strange, I'm almost sure that I have posted something about this problem 3 or 4 days ago (in brief, this is a nonlinear system, and can be solved by my LuaNumAn library). My post was present here until recently, but now it is vanished... :blink:

#300 Kilburn

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Posted 03 May 2006 - 02:59 PM

He posted this question on 2 topics, you answered him here: http://www.casiocalc...opic=1026&st=80
;)

#301 MicroPro

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Posted 10 May 2006 - 12:34 PM

Hullo (!)
I found out this on my CP... Is it something new or just some old stuff?
1. Go to main (Assistant mode).
2. Enter some math term (something simple... Like sin(x)) and press EXE.
3. Go to the "2D" keyboard and insert the integral's sign.
4. Leaving all of the blank places blank, press EXE.
5. Now say 'Oh, my!' when you see the answer, because you see that the previous ans is automatically used.
This also works for d/dx(...).

#302 anvira

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Posted 17 June 2006 - 03:59 PM

Waiting and praying for new O.S 3.0... it should solve problems

PS: Any news about O.S 3.0 ??..in example: release date?


About the release date I don't now...but I can tell you to try the www.classpad.tk...there is some info about new OS3.0

regards anvira

#303 Guest_Guest_*

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Posted 21 August 2006 - 11:56 AM

Advantages of Casio Classpad 300 over Ti-89 Titanium

1. 32 bits processor vs. 16 bits processor.
2. Total Memory 4.6 Mbytes (512Kbytes RAM for user programs + 4096 Kbytes FLASH for additional applications ) vs. 2.7 Mbytes.
3. 160 x 280 pixels screen vs. 100 x 160 pixels screen.
4. 2D graphics improved (plots single variable functions and inequalities , also allows dynamic modification of graphics).
5. 3D graphics improved (greater resolution).
6. Built in conics application( includes editor, grapher and analyzer).
7. Built in geometry application (similar to CABRI Flash App).
8. Built in eactivity application (operates like an interactive notes block, which makes possible to combine alphabetical text, mathematical text, calculations, graphics and figures).
9. Built in presentation application (allows to display a sequence of screen captures with information from other applications).
10. Spreadsheet application (similar to EXCEL).
11. The SKETCH function that allows add points, lines, figures and text in a graphic.
12. Natural input (like a text book) and 2D palette with mathematical symbols (in the virtual keyboard).
13. Automatic simplify disabling option in the CAS (Assistant mode).
14. Lowercase, uppercase and mixed variable names.
15. The compression utility (converts editable files to non editable).
16. Some improvements in the CAS: function Solve() can to solve single variable inequalities, function rSolve() solve recursive equations of order 1,2 with initial conditions and systems of 2 recursive equations with i.c, function dSolve() solve ordinary differential equations of order 1,2 y 3 with or without initial conditions and systems of 2 first order ode with or without i.c, function gcd() and function lcm() accept polynomials, Simplify() function not available in TI-89 titanium. Furthermore the CAS can be used in 2 different but equivalent forms, like functions (with the Action menu) or like programs (with the interactive menu).
17. Automatic closing bracket in functions (very useful).
18. Extended character set with 692 characters vs. 255 characters.

In my opinion the main advantage of Casio classpad 300 is that all built in applications are very well integrated one to each other, therefore they
can be combined between them. As an example, suppose that you have
the scalar equation of a circumference in the main application window
(upper half of screen) and you wish to graph it in the geometry
application window (lower half of screen), you can highlight the
equation, then drag and drop in the geometry window. Automatically
appears the figure of the circumference. Analogously for the reverse
process. When you drag the figure of the circumference from the
geometry window and drop in the main application window, automatically
appears the corresponding equation.
I think that classpad is more difficult to use than TI-89 titanium due to the
large quantity of menus, submenus, buttons and dialog boxes.


Advantages of TI-89 Titanium over ClassPad300plus os 2x

I think that currently the only advantage of TI-89 Titanium is the ordinary differential equation built in application (numeric and graphic solution of arbitrary order odes and systems of first order odes with initial conditions).However, Casio announced operating system version 3 for the classpad, which includes this application and the financial application.
The main differences between the CAS of the TI-89 Titanium and the CAS of the ClassPad are the following:
Function ArcLen() in the titanium admit matrices of expressions. In the classpad not.
Function Taylor() in the titanium admit matrices of functions. In the classpad not.
Function PolyEval() in the titanium admit numerical matrices as second argument (to evaluate matrix polynomials) .In the classpad not.
Function Lim() in the titanium admit matrices of functions. In the classpad not.
Function derivative () in the titanium admit matrices of expressions. In the classpad not.
Function integrate int() in the titanium admit matrices of expressions. In the classpad not.
Function Sum() in the titanium admit numerical matrices. In the classpad not.
Function Product() in the titanium admit numerical matrices. In the classpad not
Function avgRC() is not defined in the classpad.
Function nSolve() is not defined in classpad (but built in NumSolve application is equivalent).
Function expand() in the titanium returns partial fraction expansion when the argument is a rational function. In the classpad not.
Function Seq() in the titanium admit list of expressions. In the classpad not. Function Seq() can not be nested in the classpad by the moment.
Function toDMS() in the classpad have a poor presentation.
Functions list->mat() and mat->list() in the classpad do not make what is
supposed to be (they are very useful in advanced programming).
Functions randPoly(), randMat() and isPrime() are not defined in classpad.
Concerning to programming i Think that TI-89 titanium is superior to classpad because includes more programming structures and instructions.

#304 Kilburn

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Posted 21 August 2006 - 04:02 PM

Concerning to programming i Think that TI-89 titanium is superior to classpad because includes more programming structures and instructions.


Concerning to programming TI-89 titanium was superior to classpad... but now, you have CPLua. :D

#305 Mefhisto

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Posted 24 August 2006 - 09:46 AM

Hey folks!


This is Mefhisto, another civil engineering student from Germany.
All in all I am very satisfied with my Classpad but there are a few things which annoy me.

Perhaps anyone knows how to fix my problems.
If noone does so, this post is to be regarded as another suggestion to improve Casio Classpad300...

1. Is there any possibility to type sinus, cosinus etc without using my stilus? In my opinion it lasts too long to go to pick up my stilus search for mth--trg--sin and so on.
2. Scolling horizontally in a huge matrix makes you easily lose yourself. It would be better to do smaller steps.
3. I have problems with my battery-energy.
a) Batteries do not last very long.
b) Classpad tells very early that "Batteries are low", but I am still able to use the Classpad for some time. I just have to restart Classpad more often.
c) Sometimes Classpad shows low energy and shortly afterwards it shows full enrgy. Then it is empty again and so on.

I don`t believe I am the only one having these problems and I would be glad about some advices.


Thanking everyone for his/her answer I?m off


Yours Mefhisto

#306 Khỉ con

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Posted 24 August 2006 - 12:58 PM

TI-89 is better.

#307 omegavirus

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Posted 25 August 2006 - 04:51 AM

TI-89 is better.

They are diferent, classpad have some things better than TI-89 and TI-89 some things better than classpad...

3. I have problems with my battery-energy.
a) Batteries do not last very long.
B) Classpad tells very early that "Batteries are low", but I am still able to use the Classpad for some time. I just have to restart Classpad more often.
c) Sometimes Classpad shows low energy and shortly afterwards it shows full enrgy. Then it is empty again and so on.

I change the batteries only when the classpad shows a message that says "batteries extremely low...." in the screen, I noticed that whit the new OS it longs a bit more than in the past...

If you are at home use the usb whit the classpad and you will sabe battery life...

#308 far2055

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Posted 25 August 2006 - 03:17 PM

classpad just can check the voltage of batteries. when you do a coplex calculation classpad use more energy and because of that the batteries try to give more power so their voltage decrease and after the calculation classpad again back to its normal battery usage , so battries voltage again alittle increase . becaese of that you see wrong massages. but there is no way to understand how much energy remains in batteries. so wrong messages are not classpad fault.



i think it is good idea to recharge or insert new batteries when classpad show the "battery is extremely low" message. :)

#309 MicroPro

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Posted 28 August 2006 - 06:45 AM

I had the same problem with batteries: ClassPad is not made of transistors so you cannot use those cheap Chinese batteries, I'm not ad-ing but if you use famous batteries such as Panasonic or Maxell your ClassPad works longer for you. You can also use rechargable batteries.

#310 classpad300plus

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Posted 28 October 2006 - 11:56 AM

Hey I got a question... I have a classpad 300 plus and want to get som new games and stuff to my classpad... But when i download some games they are in RAR-files how to get them to the classpad then...

#311 omegavirus

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Posted 29 October 2006 - 01:25 AM

you have to download the Winrar program is like the famous winzip... and then you will have the files in .CPA or .mcs

#312 Colombia

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Posted 31 October 2006 - 10:28 PM

I like to create another folder (at least a folder more) into a folder on the CP300. I think it will be more organize

I botton for engenering. For example

if main show 6.87E-04 (this is no a engenering expression) if we click on this new botton we be able to chance it to 68.7E-03 (this IS a engenering expression = mili). This botton exist on the algebra FX 2.0.

#313 Guest_spineshank_*

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Posted 23 December 2006 - 11:39 AM

Hi.
I have a classpad 300 but it hasn't grad function in angle unit.Could you help me about this?I generally use grad function in my school.Can I add this function.I am waiting for replies. Thanks a lot.
Mail: ibrahim_gursoy AT yahoo.com

#314 Lovecasio

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Posted 24 December 2006 - 12:10 PM

OS 3.0 supports "grad". :)

#315 vanhoa

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Posted 26 December 2006 - 03:21 PM

If Casio read this...
Before build CP2, Casio should (I dont want to say 'must') upgrade CP a lot:

THE KEYBOARD IS MISSING SOMETHING! Many pdas now have a key board that support recognizes handwriting letters! (I'm building this but I'm not good at program and dont know why it alway crash because of MEMORY)

Geometry... Why it cant use CAS since CAS was built into the OS?

ONE LINE FUNCTION!!! IT STILL PRESENT IN OS 3!!!

It's weak in solve function in complex mode (for example: solve(abs(x)=1,x)={-1,1}, still present in OS 3, the right answer must be e^(i*const(1)).

You cant use equation or matrix or string as an element in a matrix.

Why is basic slow??? WHY ??? No OnError function, no entry() function???

No unit built-in, like _N, _m,...

Main history limit is only 30:((

Why not ans(number), only ans?

Press [(-)] (shift)+ [Keyboard], it pops up a menu that we can control our choice by direction keys or number keys.

CALL OUR ADDIN FROM MAIN! (Like CPLUA)

A line split each func-result pair in main.

3d graph should add some thing like min, max, roots...

And many things more but i must return to my history now, bye.

#316 Kilburn

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Posted 28 December 2006 - 09:12 AM

THE KEYBOARD IS MISSING SOMETHING! Many pdas now have a key board that support recognizes handwriting letters! (I'm building this but I'm not good at program and dont know why it alway crash because of MEMORY)

Remember : ClassPad is a calculator not a PDA. :)

Geometry... Why it cant use CAS since CAS was built into the OS?

Oh, well, why not... But how would you display a CAS expression (in natural display, indeeed) in a so tiny toolbar on the top of the screen ?

ONE LINE FUNCTION!!! IT STILL PRESENT IN OS 3!!!

PRGMConv solves this problem, in most cases.

It's weak in solve function in complex mode (for example: solve(abs(x)=1,x)={-1,1}, still present in OS 3, the right answer must be e^(i*const(1)).

Right... I found no way to get {x=e^(i*const(1))} :(

You cant use equation or matrix or string as an element in a matrix.

The purpose of a matrix is to contain numerical values. Nothing else.
But you can use lists as elements in a list.

Why is basic slow??? WHY ??? No OnError function, no entry() function???
Basic is slow because it uses CAS. Use Lua, what do you have to do with Basic ?

No unit built-in, like _N, _m,...
Main history limit is only 30:((


Build a new Main application. It's rather easy to do.

Why not ans(number), only ans?

D*mn, if you want to get this useless function, buy a TI-89 !

Press (-).jpg (shift)+ [Keyboard], it pops up a menu that we can control our choice by direction keys or number keys.

What do you mean ? :huh:

CALL OUR ADDIN FROM MAIN! (Like CPLUA)

What's the fastest way? Entering "CPLua" in Main, or clicking the CPLua icon in the menu ? Think of that, please, CP has a touch screen, while TI just has a keyboard, don't forget that.

A line split each func-result pair in main.

Why not... Personnally I don't find any interest in that....

3d graph should add some thing like min, max, roots...

I'm not sure, but I think it's not possible, because of the limited precision of the 3D graphes.


Try to build your own system, you'll see how hard it is. :)

#317 PAP

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Posted 28 December 2006 - 11:06 AM

ONE LINE FUNCTION!!! IT STILL PRESENT IN OS 3!!!
PRGMConv solves this problem, in most cases.

No, PRGMConv doesn't solve the problem at all. We had had a discussion about this several months ago, and you admitted that your PRGMConv just changes the header of a program, so CP "thinks" it is a function; that's all. PRGMConv has very serious limitations: it simply doesn't do what it is supposed to do. So, your statement, "it solves the problem in most cases" is not true, and you know it ;).

#318 vanhoa

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Posted 28 December 2006 - 01:59 PM

Press (-).jpg (shift)+ [Keyboard], it pops up a menu that we can control our choice by direction keys or number keys.

What do you mean ?

Press the shift key: (-)
Then press [KeyBoard]
It pops up a list...

#319 vanhoa

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Posted 28 December 2006 - 02:11 PM

A line split each func-result pair in main.

Why not... Personnally I don't find any interest in that....


It makes us easier to read...

CALL OUR ADDIN FROM MAIN! (Like CPLUA)

What's the fastest way? Entering "CPLua" in Main, or clicking the CPLua icon in the menu ? Think of that, please, CP has a touch screen, while TI just has a keyboard, don't forget that.


Some things like calladdins(seachbylabel("CPLua"))

3d graph should add some thing like min, max, roots...

I'm not sure, but I think it's not possible, because of the limited precision of the 3D graphes.


No, It's possible! You know many numerical methol, dont you? And you dont know any methol about 3d??? I know some methols, but i think the best way is let casio intgrate it in the 3d application.

No unit built-in, like _N, _m,...
Main history limit is only 30:((

Build a new Main application. It's rather easy to do.


You think it's easy??? I dont think so... The main application uses many unsupported functions in the SDK!

THE KEYBOARD IS MISSING SOMETHING! Many pdas now have a key board that support recognizes handwriting letters! (I'm building this but I'm not good at program and dont know why it alway crash because of MEMORY)

Remember : ClassPad is a calculator not a PDA.


Yes, it's a calculator, but i'm not comparing it with pda! Input text by handwriting is faster!

Geometry... Why it cant use CAS since CAS was built into the OS?

Oh, well, why not... But how would you display a CAS expression (in natural display, indeeed) in a so tiny toolbar on the top of the screen ?


No, how about the spreed sheet application, it can display the exp in a new ModuleWindow?

#320 PAP

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Posted 28 December 2006 - 10:36 PM

3d graph should add some thing like min, max, roots...
I'm not sure, but I think it's not possible, because of the limited precision of the 3D graphes.

No, It's possible! You know many numerical methol, dont you? And you dont know any methol about 3d??? I know some methols, but i think the best way is let casio intgrate it in the 3d application.

Hmmm, I don't want to sound rude, but I have to say that you guys should be more modest when speaking about numerical methods, since you don't know much about Numerical Analysis.
Yes, it is possible to find roots or extrema of functions of two independent variables. However, this problem is much more difficult than the simpler case of functions depending on one variable. I personally believe that a "graphical approach" to the problem is a very-very bad decision, for several reasons. Even for functions of one variable, graphical solution is useful only for pedagogical purposes. A much more convenient approach is to implement a generalized version of the built-in function fmin. Btw, I don't think I will wait to see such functionality implemented in the OS. Multidimensional root finding is in my plans for a future version of LNA ;).




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