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CP 400 vs "The other guys"....help me out buying a new calc


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#1 Stefos1

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Posted 28 October 2016 - 02:25 AM

Hi everyone,

 

I did own a CP 300 some years ago and I found it to be a bit wonky, per se.

 

I like the fact that the CP400 has color and can screen rotate and is more streamlined key wise.....finally.

 

So, There is the HP Prime and this essentially that I'm looking at.

I don't use RPN and I do want 3d graphing.

 

2 issues with the CP 400 however:

 

1. Memory.............People complain that this is a big issue.................How big of an issue is it?  Can a person not download a Casio file to their PC if need be?

 

1 person on the official Casio site mentioned that the TI Nspire's memory was a lot while this 5.5 MB was a joke essentially.

 

Is this calculator slow with the newest software?

 

2. Batteries versus a Lithium battery...........People complain about this.  What's your view?

 

Thank you,

Stefos1


Edited by Stefos1, 29 October 2016 - 12:16 AM.


#2 frankmar98

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    HP Prime, TI-84+CE-T, TI-83+ fx-9750GII, CP-300, fx-4800p, fx-3650pII, fx-31, PB-100,fx-991 SPX, fx-82SX, fx-82

Posted 30 October 2016 - 09:10 PM

I suppose that you want a CAS calculator:

 

The classpad is good, but I prefer keys, HP prime is very good, but it lacks 3D graphing.

 

With my experience, I would buy a HP 50g.

 

Batteries are much better than lithium battery, a calculator lasts forever, but not the lithium battery.

 

In my fx-9750GII, I'm today yet with first the alkaline batteries that came with the calculator, and I had used it a lot, and a lot of hours calculating with my Conway's Game of Life port.


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#3 Stefos1

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Posted 31 October 2016 - 03:03 PM

Hi,

 

Thanks for your response.

 

Yeah......I like the Classpad for the CAS and also for the large screen.

Split screen and 3d graphing do matter to me as well.

 

How does the CP 400 run with the newest OS build?  On YouTube, a video showing it was a bit lagging in comparison to the HP Prime & TI CX CAS Nspire.

 

I just sold my HP 50G actually because of the grayscale only.

 

I called HP's Cust. Serv. and they didn't express any knowledge about 3d graphing at all coming to the HP Prime which sucks.

 

Thank you!

Stefos1



#4 frankmar98

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Posted 14 November 2016 - 04:24 PM

There exist an app for the HP Prime that does 3d graphing, but it is very bad.

 

I don't know how the CP 400 behaves with the newest OS, but if the current OS has a bug, they will fix it.

 

Classpad calculators are good, you can buy it without worrying.

 

I own the Classpad 300 with the  3.06.4000 OS (the lastest) and it runs very well.

 

Obviously, if you input the seventh derivative of a large function it will lag or even display an error because there is no memory enough.






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