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TI-89 vs HP49G+
Posted by Michael on 22 January 2004, 02:46 GMT

Al Borowski has created a webpage comparing the differences between the TI-89 and the HP 49G+, two calculators in their respective company's high-end model line. This is still a work in progress, and there's also a mirror because apparently we are thought to have some sort of slashdot-like server crashing power - I'm not sure about that :)

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The comments below are written by ticalc.org visitors. Their views are not necessarily those of ticalc.org, and ticalc.org takes no responsibility for their content.


Re: TI-89 vs HP49G+
Jason MacDonald  Account Info

BOO HP! Texas Instruments rules all!!!

Reply to this comment    22 January 2004, 06:05 GMT

Re: TI-89 vs HP49G+
chemoautotroph Account Info
(Web Page)

Looking at that list just made me think more of how stupid TI's next attempt at sales with the 89 Titanium is. They're obviously trying to bridge the advantages that the 49G+ has.

The comparison also added the HP-49G+ to slot number 2 of my calculator wish list (I had no no idea it was 75 mHz and had a SD memory slot), second only the the Casio ClassPad 300.

That list makes me feel stupid for buying a TI-89 three years ago :P, although I am surprised to see the 49G+ doesn't have C capibilites, which is a serious advantage for the TI 68K calculators.

Really great job though, it should remove some of the predjudices against the other brands (in particular HP).

Reply to this comment    22 January 2004, 20:58 GMT

Re: Re: TI-89 vs HP49G+
mindstorm23 Account Info

Heck, I'll take your 89 if you don't want it. I agree with an earlier comment that said that with so much memory curerntly available in an 89 (especially on the new Titanium), it is already hard to fill it up, making SD cards kinda useless. Unless you are some sort of psychotic game addict that must have extreme speed and memory. And even then, there are more games for the 89, and more can be written in C.

Reply to this comment    22 January 2004, 22:23 GMT


Re: Re: Re: TI-89 vs HP49G+
mortus_canis  Account Info

the sd card is good for backup to a computer, not to run programs off of. You don't need any linking software or cables, just a standard card reader. The hp is not a good gaming calc; the 89 is much better, (but I still like my hp49g+ most).

Reply to this comment    23 January 2004, 18:52 GMT

Re: Re: TI-89 vs HP49G+
Ben Cherry  Account Info
(Web Page)

well, C isnt exactly a standard or official thing for the 68ks. Its something that is really cool, but (i think, maybe im completely wrong) is completely third-party and just a useful tool for writing the programs.

Reply to this comment    23 January 2004, 01:18 GMT


Re: Re: Re: TI-89 vs HP49G+
Zeroko  Account Info
(Web Page)

TI Flash Studio uses C (with some C++ additions, I think) & assembler, so TI does support C.

Reply to this comment    23 January 2004, 04:15 GMT


Re: Re: Re: Re: TI-89 vs HP49G+
Ben Cherry  Account Info
(Web Page)

oh, i thought that the only support for C was through TIGCC. Thanks for correcting me.

Reply to this comment    23 January 2004, 04:45 GMT

Re: Re: TI-89 vs HP49G+
Memwaster  Account Info


What???

You're planning on going casio??!!

Nooooo0000

Reply to this comment    23 January 2004, 05:10 GMT

Re: Re: TI-89 vs HP49G+
lalu Account Info

<<Looking at that list just made me think more of how stupid TI's next attempt at sales with the 89 Titanium is. They're obviously trying to bridge the advantages that the 49G+ has.>>

Why would they want to do that? They probably didn't even know about HP's plans until they had finalized theirs.

<<it should remove some of the predjudices against the other brands (in particular HP).>>

What kinds of prejudices?

Reply to this comment    23 January 2004, 05:27 GMT


Re: Re: Re: TI-89 vs HP49G+
chemoautotroph Account Info
(Web Page)

> What kinds of prejudices?

Look at the comment by Memaster

About 60% of the visitors to ticalc.org are vehemontly opposed to Casio and HP calculators, and very few of them have valid reasons to, with comments like "TI's are better cuz HP sucks."

Reply to this comment    23 January 2004, 17:59 GMT

Re: Re: Re: Re: TI-89 vs HP49G+
chemoautotroph Account Info
(Web Page)

Did you know that about 80% of statistics are made up on the spot?

Reply to this comment    24 January 2004, 00:12 GMT


Sorry for the really bad grammatical errors
no_one_2000_  Account Info
(Web Page)

LOL, I like that quote.

I've always been pro-TI, since that's what I'm accustomed to, and it's what I know about the best. For Casio... well, I haven't had much experience with Casio, but from what I've had and from what I've heard from other people, I've concluded that most of their models aren't very good. The HP49G+ is a good calculator, and since I've seen many comparisons from the TI-89 to the HP49G[+], I've always thought it must be pretty good. Comparing any calculator to the TI-89 means it must be good. :) I've never really had any prejuduces against the HP models, but TI will always be my favorite.

Reply to this comment    24 January 2004, 02:20 GMT


Re: Sorry for the really bad grammatical errors
chemoautotroph Account Info
(Web Page)

At least you have a solid opinion with some facts to experience to back it up, and yes, the majority of Casio's suck. The only one I like is the ClassPad300, it's got a touch screen, internal buzzer, AWESOME OS, external memory, USB; and announced before either the TI89 Ti or HP49G+.

Reply to this comment    24 January 2004, 16:47 GMT

Re: Re: Sorry for the really bad grammatical errors
Memwaster  Account Info

..... And no ASM

Reply to this comment    26 January 2004, 00:16 GMT


Re: Re: Sorry for the really bad grammatical errors
kirb Account Info

the only casio i had was an fx115ms (scientific), and it was better than my friends' ti-30xIIs because it had built in quadratic/cubic 2/3 var solving capabilities plus solving for x in many equations.

Reply to this comment    1 February 2004, 00:18 GMT


Re: Re: Re: Sorry for the really bad grammatical errors
darkhydra21 Account Info

Yes, I gavor Casio's scientific calculators...however, in terms of graphing calculators, I would stick to TI or HP.

Reply to this comment    26 April 2004, 04:37 GMT

¤
burntfuse  Account Info

How did you get those stats? No one asked me...
BTW, my opinion on this whole thing is that the HP and TI calcs both have their advantages and disadvantages. It's just a matter of personal preference. It would be interesting to try a 39G+ and 49G+ (I apologize if I'm screwing up the model numbers)...

Reply to this comment    25 January 2004, 14:01 GMT


Re: Re: Re: Re: TI-89 vs HP49G+
Memwaster  Account Info

You forgot the "w".

Anyway, I never had anything against HP's, as I have never seen one.

I AM against casios because they lack any expandability, and, more importantly, user input.

They suck.

Many of the ones at my school can't even find minimums or maximums.

Reply to this comment    29 January 2004, 10:27 GMT


Re: Re: Re: Re: Re: TI-89 vs HP49G+
A Moore  Account Info

I've used my buddies TI83+ several times...

I'll stick with my Casio AFX 2.0

It cost less money and competes more with the TI 89.
No doubt the 89 is better. Still the AFX goes for about a c-note.

Reply to this comment    2 September 2004, 01:22 GMT


Re: Re: TI-89 vs HP49G+
hpguy Account Info

what are C capibilites?

Reply to this comment    30 April 2005, 05:47 GMT

Re: TI-89 vs HP49G+
Job Account Info

You know what I find a bit odd? It *seems* that TI isn't using the most optimized routines in most cases. For example, there are a few routines out there (CoBB's Brezenline and sigma's Brezencircle come to mind) which are much faster that the OS routines. And what about the 83+ Graph3d? It's FASTER than the 3d grapher the 86 has. So why doesn't the OS use the better routines? They can upgrade the OS, why not improve upon those routines? Is it a size thing?

It's probably not much better in the case of HP. I suspect that both the TI-89 and the HP49G+ can be made much faster.

Reply to this comment    23 January 2004, 14:27 GMT

Re: Re: TI-89 vs HP49G+
BlackThunder  Account Info
(Web Page)

I really don't know how to word this without being too offensive, but here goes: TI's programmers seem to be too lazy to optimize the AMS on the 89 (or the ROM on the 86). So, their routines are naturally worse than the ones a lot of programmers can come up with. This is another reason I like using a new OS like PedroM, it's user programmed, so these kinds of routines could be optimized for speed.

Reply to this comment    23 January 2004, 15:43 GMT

Re: Re: TI-89 vs HP49G+
sigma  Account Info

The TIOS's circle is more robust since it can have a negative center or very large radius. But regardless FastCircle is much faster. So much faster you could, say, have a game made entirely out of circles ;)

Reply to this comment    23 January 2004, 18:03 GMT

Re: Re: TI-89 vs HP49G+
no_one_2000_  Account Info
(Web Page)

The TI-86 has a 3D grapher? I never knew that... How do you access it?

Reply to this comment    24 January 2004, 02:21 GMT


Re: Re: Re: TI-89 vs HP49G+
Ben Cherry  Account Info
(Web Page)

i dont think it does. I think that he just made a mistake.

Reply to this comment    24 January 2004, 02:44 GMT


Re: Re: Re: Re: TI-89 vs HP49G+
darkhydra21 Account Info

He meant the 89. The TI-89 has a 3-D Grapher.

Reply to this comment    26 April 2004, 04:39 GMT

Re: Re: TI-89 vs HP49G+
nolekid  Account Info

It should be noted that Graph3d is very small in capabilities. One equation, solved for z, and rotations. I don't know how the 89 3d grapher works (I've been trying to find it, actually. It seems to be hidden), but the graph3d is fairly useless, though it is nice to play around making curves with it during class.

Reply to this comment    24 January 2004, 16:34 GMT


Re: Re: Re: TI-89 vs HP49G+
chemoautotroph Account Info
(Web Page)

You have to change the mode to "3D" and open it with the y= editor.

On the TI-89, although you can store multiple equations, only one at a time is possible, and none of the features TI adds would contribute to slower software. The problem is that the software on top of the operating system is written in C, which will compile to slower code than writing ASM from scratch.

Reply to this comment    24 January 2004, 17:32 GMT

¤
burntfuse  Account Info

In the OS of the 86, I have seen a lot of "call xxxx/ret"s which could be easily replaced by "jp xxxx". Maybe the programmers are lazy...or they don't have them optimize as much because it would cost more money...

Reply to this comment    25 January 2004, 14:03 GMT


Re: ¤
Memwaster  Account Info

Call xxxx/ret is more efficient in time and space than jp xxxx/jp xxxx+1

jp and call both take 3 bytes and 12 Tstates, ret takes 1 byte and 4Tstates. It's either 6 bytes and 24Tstates, or 4 bytes and 16Tstates

Reply to this comment    26 January 2004, 00:21 GMT


¤
burntfuse  Account Info

I think there's a misunderstanding here...I meant that a call, with a ret after it can be replaced by a single jump. That way, when the PC gets to the ret at the end of the routine that has been jumped to, it acts just like the ret that would be after the call if the call had been used instead. I'm probably not explaining this well, so here:

routine_1:
;do some stuff
call routine_2
ret

(can be replaced with:)

routine_1:
;do some stuff
jp routine_2

Reply to this comment    26 January 2004, 21:47 GMT


Re: Re: TI-89 vs HP49G+
hpguy Account Info

The HP49G+ has a very capable 3-D grapher which allows you to rotate graphs about the x,y,z axes and zoom in and out all with out any lag

I did that with tan(x/(ytan(x)) with fifteen dependent and fifteen independent in under 5.5sec

Reply to this comment    30 April 2005, 06:06 GMT

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