## Graphic Calculator Brand

For the discussion of math. Duh.

Moderators: gmalivuk, Moderators General, Prelates

## Best (yes, favourite) Graphics Calculator

Casio
7
11%
Sharp
0
HP (Hewlett Packard)
7
11%
TI (Texas Instruments)
48
77%

keeperofdakeys
Posts: 658
Joined: Wed Oct 01, 2008 6:04 am UTC

### Graphic Calculator Brand

hello
I just finished my second to last year of High School (yes I get a loong holiday @ christmas. Year ends, school ends; that seems correct)

anyway yesterday was my final day, and I was talking to my specialist maths teacher and I asked if I would need a new graphics calculator since mine does not have a custom equation solver, he said I did. (it is the casio 9850g, it has simultaneous and polynomial, but no custom)
I am aiming to get a second hand one from ebay or maybe my local paper's classifieds but the thing is which one should I get. I did some digging around and saw that TI (Texas Instruments) calculators were better then casio, but more complicated (which doesn't worry me in the slightest, all the more learning for me. It might also be handier later in my life). My school is quite pro casio though, so I might be a little stunted until I learn how to do the calculations. Also for my end of year exams the ONLY calculators that are allowed (set by state) are: Casio cfx-9850G, cfx-9850G Plus, cfx-9850GB Plus, cfx-9850GC Plus, fx 1.0 Plus, fx-9860G AU; Sharp EL-9600, EL-9650, EL-9900; Hewlett Packard HP 38G, HP 39G, HP 39G+, HP 39GS; Texas Instruments TI-83, TI-83 Plus, TI-84 Plus.

If i'm not sure then I will just default to a 9850gb or gc.

thanks, keeperofdakeys

Ended
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Location: The Tower of Flints. (Also known as: England.)

### Re: Graphic Calculator Brand

I have a Casio CFX-9850G Plus which has served me well for the past five years or so. I've never been in a situation where I've thought 'oh, I really need feature X but my calculator doesn't have it'. It has a custom equation solver (which I've only just found by the way, I didn't know there was one. Cool).

My only complaints with it are:
1) Drawing complicated graphs can take a while.
2) A symbolic differentiator would be nice.
3) The multiple-colour screen is pretty, but maybe not worth the extra money.
4) There are no pre-loaded programs.
Generally I try to make myself do things I instinctively avoid, in case they are awesome.
-dubsola

Xanthir
My HERO!!!
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### Re: Graphic Calculator Brand

I never used a calc in college (either did math by hand, or was allowed to use my laptop and just used Lisp), but TI-83+ all the freaking way. It was my stalwart companion all through high school.
(defun fibs (n &optional (a 1) (b 1)) (take n (unfold '+ a b)))

HenryGifford
Posts: 152
Joined: Mon Nov 03, 2008 2:01 am UTC

### Re: Graphic Calculator Brand

Texas Instruments. FTW! (I'm sorry, "FTW" is just so fun...)
But seriously I've got a TI-83+ and I've used it since 6th grade to 8th grade, my sister has used it in both her 9th and 10th grade classes, and I don't see why it wouldn't work in 11th. And 12th. And college.

qbg
Posts: 586
Joined: Tue Dec 18, 2007 3:37 pm UTC

### Re: Graphic Calculator Brand

I have fond memories of my TI-83+, though for the past several years I have been using a TI-89.

xixheartxyoux
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### Re: Graphic Calculator Brand

I have had my TI 84 Plus for some time and I love it! I've never used any other brand though. But once you get used to it, its fairly user friendly.

“The highest form of pure thought is in mathematics”--Plato

joeframbach
Posts: 1478
Joined: Sun Nov 05, 2006 12:49 am UTC

### Re: Graphic Calculator Brand

I used a TI-83+ in high school, but I never used a calculator throughout college. I own a HP 49g+ but it's rarely used.
Usually I fire up octave in a terminal.

Sir_Elderberry
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### Re: Graphic Calculator Brand

I admit to having never tried any other calculator brands, but I'm a high school junior using the TI-84+ I got in seventh grade, so I had to vote for it. Thing's my Excalibur. Or Excalcibur.
http://www.geekyhumanist.blogspot.com -- Science and the Concerned Voter
Belial wrote:You are the coolest guy that ever cooled.

I reiterate. Coolest. Guy.

Well. You heard him.

buugs
Posts: 4
Joined: Thu Oct 16, 2008 9:21 pm UTC

### Re: Graphic Calculator Brand

you can get an hp50g for near the same price as an 84+ it does have a steep learning curve though

if you want a small learning curve with a lot of functionality ti is usually better, but if you get relatively far in math and physics a ti89 can do wonders, though most lower level math classes wont allow it, but im sure those are fine with a scientific calc

Yesila
Posts: 221
Joined: Sun Dec 16, 2007 11:38 am UTC

### Re: Graphic Calculator Brand

I voted for HP. I used to use Ti's but then made the switch and don't think I'd ever go back. Not that I use a calculator much....

I would imagine though that you would be fine sticking with the calculator you have now. Or waiting until you get to whichever college you end up going to and seeing what type of calculating power you need. I doubt that a custom equation solver on a calculator will be of much (if any) use. Most of the use you'll get out of your calculator will be doing things that Any scientific calculator can do. In addition, every so often you'll also want to graph some things, if you take some statistics type classes you might want some nice statistics tools (most graphing calculators have at least basic stats stuff, many have lots of neat stats stuff). Sometimes you'll want to compute a determinent or the inverse of a (non-small) matrix and won't have a computer program handy so its nice to have some basic linear algebra things on your calculator. For some classes you'll find yourself doing the same type of computations over and over so being able to do some simply programing in your calculator is nice too.

Pretty much any graphing calculator can do all (or at least most) of that stuff. If you find yourself needing to do anything else I would imagine it would be in an isolated class or two and you won't know what you need until then. Really though, if you like what your using now, and you know how to use it well, just keep using it until you come to an actual need to switch. Don't switch because you ''think" that you might need some other feature. Switch calculators when you "need to" or when you just want a new one.

Spoiler:
As a side note as a student I was a math and a physics major. In math at my school the calculator was rarely (if ever) need/used/ or even allowed. In Physics It was used to mostly for computations (arithmetic+logs/exponents+some trig). In both majors they expected you to solve any equations by hand, on paper, and it was that that was graded.

As a teacher of math classes when I'm grading a problem things that come out a calculator would usually earn a person between 0 and 15% of the points for a problem. The zeros often happening when they tell me that the answer is something like 1.5708 when the real answer is [imath]\pi/2[/imath].

keeperofdakeys
Posts: 658
Joined: Wed Oct 01, 2008 6:04 am UTC

### Re: Graphic Calculator Brand

I would stick with the one I have but the specialist maths teacher for next said that I would NEED the custom equation solver.I find that sometimes when I am doing maths for fun I wish for a equation solver I can use, not trying to figure out how to get x as the subject a an equation form I do not know.From what I can see most people have stuck with the brand that they originally got in high school, but is there someone who has used both Casio and TI? Also how is the programming capability of the TI?

skeptical scientist
closed-minded spiritualist
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### Re: Graphic Calculator Brand

You don't need a new calculator. You will find it not terribly useful in college beyond the basic function of being able to graph a function whose shape you can't immediately see from the equation, which any graphing calculator should do.

As for the custom equation solver, I can't see how you would need one. Just graph both sides of the equation as functions of an independent variable, and find the intersection point(s) on the graph.
I'm looking forward to the day when the SNES emulator on my computer works by emulating the elementary particles in an actual, physical box with Nintendo stamped on the side.

"With math, all things are possible." —Rebecca Watson

raike
Posts: 236
Joined: Fri Nov 28, 2008 10:25 pm UTC

### Re: Graphic Calculator Brand

Ti 83 or 84; you can't go wrong there. If allowed, try an 86 - a bit outdated, but nice.
As to the custom eqn solver... is it really a must? If yes, are there not apps on the net that could provide the same functionality?
Of course, my opinion may be skewed as I typically use the classroom sets of ancient scientific calcs or use a slide my AP Chem teacher gave me last year along with a log table. It works quite well in AP Physics.
But, here, most use an 83, though a few rich punks have 89 titaniums now...
"When your work speaks for itself, don't interrupt." - H.J. Kaiser
رات دن گردش میں ہیں سات آسماں
ہو رہیگا کچھ نہ کچھ گھبرائیں کیا
(غالب)

Tacos
Posts: 3
Joined: Sat Nov 29, 2008 10:36 pm UTC

### Re: Graphic Calculator Brand

Ti-84+ SE
Bought it when it was new (and 300 bucks. ugh.) and have used it ever since.

keeperofdakeys
Posts: 658
Joined: Wed Oct 01, 2008 6:04 am UTC

### Re: Graphic Calculator Brand

I've been looking at some tutorials and the TI seems totally different from casios
I bothered to get out my calculator's manual to look up a function called "solve(" which I could never work out how to use; turns out it does a very similar job as the equation solver in later calculators except that it has the limitation of variables needing to be set manually and the function must be set to zero, also a guess needs to be entered. I've seen on other tutorials that the TI has both the gui and function but the GUI has the same limitations of my calculators function, so I guess i'll just use mine after all. My teacher may still want me to get a new one next year though.
Last edited by keeperofdakeys on Sun Nov 30, 2008 12:36 am UTC, edited 1 time in total.

skeptical scientist
closed-minded spiritualist
Posts: 6142
Joined: Tue Nov 28, 2006 6:09 am UTC
Location: San Francisco

Since you already have a graphing calculator, I'd advise against spending the $100 and time learning how to use a new one. A new graphing calculator might be nice for certain things, but I doubt you will find it enough of an improvement to justify the price tag. I'm looking forward to the day when the SNES emulator on my computer works by emulating the elementary particles in an actual, physical box with Nintendo stamped on the side. "With math, all things are possible." —Rebecca Watson keeperofdakeys Posts: 658 Joined: Wed Oct 01, 2008 6:04 am UTC ### Re: Graphic Calculator Brand Yeah I think i'll just wait till school starts (in a few months), and maybe i'll just have to boost my skills to calculate manually to keep up, get better grades. Last edited by keeperofdakeys on Sun Nov 30, 2008 11:25 am UTC, edited 1 time in total. qinwamascot Posts: 688 Joined: Sat Oct 04, 2008 8:50 am UTC Location: Oklahoma, U.S.A. ### Re: Graphic Calculator Brand I'll be honest; I never used my graphing calculator. On the AP test I brought a scientific one that could do integrals and derivatives. I have a TI-82, which I bought for$15, but it rarely sees any use and mostly is just for programming random things when it's inconvenient to use a laptop. I doubt you need a new calculator for math, and you'll find that in reality calculators aren't very useful. In real math, you rarely need to do calculations. And when you do, a computer is easier and more powerful. Just keep what you have, and if you really find you need one, then (not now) buy it.
Quiznos>Subway

sam5550
Posts: 16
Joined: Sun Nov 23, 2008 8:54 pm UTC

### Re: Graphic Calculator Brand

I have to give my TI-89 props for durability; I've had mine for 10 years, and its still going strong. They've changed the design several times in recent years, however; I'm not sure if the new models are as well-made.

Also, if you like to do programming, you can program the 89 using C (with some external tools).

MoD
Posts: 107
Joined: Sun Dec 30, 2007 4:55 pm UTC

### Re: Graphic Calculator Brand

keeperofdakeys wrote:I would stick with the one I have but the specialist maths teacher for next said that I would NEED the custom equation solver.I find that sometimes when I am doing maths for fun I wish for a equation solver I can use, not trying to figure out how to get x as the subject a an equation form I do not know.From what I can see most people have stuck with the brand that they originally got in high school, but is there someone who has used both Casio and TI? Also how is the programming capability of the TI?

I've got a Casio FX-9750G Plus as well as a TI-83. The 9750G is on the weak side and a lot of times I regret getting it instead of the 9850 or 9860. It lacks the ability to (without massive trouble) run assembly programs and the processing speed is low. The TI is comparable for most day-to-day calculations but wins massively in some areas. The Casio has worse recursion ability (Programmatical, not mathematical, recursion, mind you; the Casio has an excellent recursion mode for calculating the Fibonnacci sequence and the like.) as it has a maximum stack height of 11 for BASIC programs. The TI can reach a few thousand stack entries depending on how much memory is free.

The TI also has better support for non-numerical data types. While this may be different in newer Casio calculators, the FZ-9750G Plus has no built-in support for string entry or storage (though there is a six-item clipboard, "function memory", that suffices in some cases). The TI has at least a few string variables and it's easier to use them than hacking together a string library for your Casio (been there, done that). The list support on the Casio is also dwarfed by the TI's featurelist; the TI-83 has the ability to append items to lists programmatically, concatenate them similarly, and do several other operations that the Casio lacks. There are hacks to emulate some of those functions on the Casio, but they're not as fast or clean as simple firmware support would be.

The TI's got a great applications framework for access to assembled code, and if assembly code is something you want to get into, you'll want either a TI or a Casio 9860 or better. I don't know whether the 9850 supports assembly well.

I can't say much about the equation solver on the TI because I haven't used it. But if it's not powerful enough, I would bet you someone has written an application that is. You might also be able to find an assembly add-in for your Casio (again, if it supports assembly; I don't know if the 9850 does) that does the same. http://www.casiocalc.org is a great source for programs and info for Casio calculators, if you've not looked there yet.

EDIT: Accuracy++;
Last edited by MoD on Thu Jan 22, 2009 12:39 am UTC, edited 1 time in total.

keeperofdakeys
Posts: 658
Joined: Wed Oct 01, 2008 6:04 am UTC

### Re: Graphic Calculator Brand

personally I don't have a PC to calculator cable, but I found these plans
so I will hack my self one together, I know a shop where I can get the stuff; i've looked and they have everything I need.

I will definably stick with mine for now, the solve function I found does pretty much exactly the same job

Arc
Posts: 65
Joined: Fri Nov 28, 2008 9:31 pm UTC

### Re: Graphic Calculator Brand

I like my TI-84 (Silver). The only other graphing calculator that I've tried is the TI-83, which I don't like, for some reason. I think I just prefer the way the keys are arranged on the 84, as opposed to the perfectly straight grid on the 83. I don't think there is really anything else different between the two, except for memory and processor speed.

keeperofdakeys
Posts: 658
Joined: Wed Oct 01, 2008 6:04 am UTC

### Re: Graphic Calculator Brand

and a Ti-83+ emulator http://www.ticalc.org/archives/files/fileinfo/261/26120.html

if anyone wanted to try out one without buying it

thornahawk
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### Re: Graphic Calculator Brand

keeperofdakeys wrote:after some digging I have found a Ti-83+ emulator http://www.ticalc.org/archives/files/fileinfo/261/26120.html

if anyone wanted to try out one without buying it

A list of most of the known TI calculator emulators can be found here. Note that these only work if you have a ROM file with you on hand, which you can only legally get by taking a ROM dump from your calculator.

~ Werner
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grim4593
Posts: 116
Joined: Tue Aug 22, 2006 1:23 am UTC

### Re: Graphic Calculator Brand

Personally I love my TI-89 Titanium. Works great and lets you do things that the older versions cannot. Its expensive, but can save you lots of time on assignments and tests. Granted, its always good to know how to do stuff by hand before you start relying on a calculator, but generally calculators are not allowed in math classes when you are learning concepts but they are allowed in engineering classes when you are applying the concepts.

Yesila
Posts: 221
Joined: Sun Dec 16, 2007 11:38 am UTC

### Re: Graphic Calculator Brand

grim4593 wrote:Personally I love my TI-89 Titanium. Works great and lets you do things that the older versions cannot. Its expensive, but can save you lots of time on assignments and tests. Granted, its always good to know how to do stuff by hand before you start relying on a calculator, but generally calculators are not allowed in math classes when you are learning concepts but they are allowed in engineering classes when you are applying the concepts.

I don't get it. What's this "applying" thing you're talking about?

keeperofdakeys
Posts: 658
Joined: Wed Oct 01, 2008 6:04 am UTC

### Re: Graphic Calculator Brand

Yesila wrote:
grim4593 wrote:Personally I love my TI-89 Titanium. Works great and lets you do things that the older versions cannot. Its expensive, but can save you lots of time on assignments and tests. Granted, its always good to know how to do stuff by hand before you start relying on a calculator, but generally calculators are not allowed in math classes when you are learning concepts but they are allowed in engineering classes when you are applying the concepts.

I don't get it. What's this "applying" thing you're talking about?

well it's like learning what a derivative is, and how to solve it; when you need to find it for a difficult equation and it would take half the time to use the calculator, then you use it. But while you are learning what it is, it is a good idea to know how to calculate it by hand.

jmorgan3
Posts: 710
Joined: Sat Jan 26, 2008 12:22 am UTC

### Re: Graphic Calculator Brand

keeperofdakeys wrote:
Yesila wrote:
grim4593 wrote:Personally I love my TI-89 Titanium. Works great and lets you do things that the older versions cannot. Its expensive, but can save you lots of time on assignments and tests. Granted, its always good to know how to do stuff by hand before you start relying on a calculator, but generally calculators are not allowed in math classes when you are learning concepts but they are allowed in engineering classes when you are applying the concepts.

I don't get it. What's this "applying" thing you're talking about?

well it's like learning what a derivative is, and how to solve it; when you need to find it for a difficult equation and it would take half the time to use the calculator, then you use it. But while you are learning what it is, it is a good idea to know how to calculate it by hand.

I think he was joking...
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keeperofdakeys
Posts: 658
Joined: Wed Oct 01, 2008 6:04 am UTC

### Re: Graphic Calculator Brand

oh sarcasm, I should have known that
obviously I'm still out of it from my Dad kicking me off the computer yesterday

keeperofdakeys
Posts: 658
Joined: Wed Oct 01, 2008 6:04 am UTC

### Re: Graphic Calculator Brand

well I've been back at school for a while now and my calculator has been fine, till now

I had a maths test today about modelling, so I get up to a question that said graph this logistic equation from this data, but my calculator couldn't do it
so I told the teacher, he looked through it at disbelief, so I just used his for that question
I asked him if it will matter and he gives me one of his lovely cryptic answers, "Well only if there's only a question on the exam about it"
since modelling is only a small part of the course, I can only imagine there being one, if any questions where I will need to calculate a logistic graph

this is such a small thing that I don't think it will matter though

another not catastrophic, but still annoying feature is that only the 2 works on an i, ^ refuses to do i^x and x^i