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emnmnme
Heard about this on conservative radio:Registered User regular

Remember these from high school? I bought a Ti-86 for pre-calc and calculus back in 1998 for high school. I used it some in college for statistics but mostly I just needed it for solving for a vertex or somesuch. I paid $89 for it back in the day.

Considering how technology advances push down prices, why are graphing calculators immune? I mean, there must be cell phones available with twice the processing power at a quarter of the price, right?

Can you imagine a TNT2 card or a Pentium 3 at $150 each today?

Considering how technology advances push down prices, why are graphing calculators immune? I mean, there must be cell phones available with twice the processing power at a quarter of the price, right?

Can you imagine a TNT2 card or a Pentium 3 at $150 each today?

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## Posts

If they weren't required by most high school math classes, their price would most likely drop.

At this day and age, they should be.

I wouldn't have even paid $50 for this. Makes me wonder why the graphic calc isn't going the way of the cell phone, so far as continuous addition of features goes.

Because some high school math teachers actually

requirethe little shitter for their classes. It's quite hilarious when taken out of context.Also: Holy Shit, a FORUM for TECHNOLOGY?

XBL- Evil Badman MD;Steam- EvilBadman;Twitter- EvilBadmanDing ding ding.

I live in a college town, so there always seem to be a graphing calculator or two on craigslist. It's a shame that some company doesn't get into the graphing calculator business with a low cost (shit, or even a same cost) device with better features - a color screen, better input, USB port, etc.

The only problem is, so many high level math classes are standardized around specific models of Texas Instruments calculators.

Steam

/Bus Blog/Goozex ReferralWell, this can fit here since there all kinds of wonderful games available for a Ti-86. Like Breakout and that worm game where you can't touch your tail.

You're lucky when I was in college years back my math class made me pay for a model that was about $150 dollars and we used the graphing feature for about 1 week. To be fair though we had a ton of games going around and you could hook two of them up to play 2 player tetris. My school was dumb and allowed people to use those calculators for pretty much any exam so there was also rampant cheating with people storing tons of their notes and forumlaes on the things.

The cost hasn't changed because of economics basically. Companies will charge what people are willing to pay, not what a product is worth. For graphing calculators they know you need them for specific types of classes so they know you will pay pretty much whatever they feel like charging. Lowering the price isn't going to really net them any extra sales so there is no incentive for them to do so, thats why they have cheaper non-graphing calculators.

What it comes down to is these things haven't changed in price because people are still willing to pay the same amount of money for them. Obviously there is a lack of suitable competition for this type of market.

This is the problem, there are better calculators out there than the TI ones, but when everyone in your class uses a TI and so does the TA and professor its way easier to get help if you also use a TI.

The idea of doing trigonometry without a calculator strikes terror into my heart.

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HINT: the HP-48 series of calculators use Reverse Polish Notation the operators follow the operands. So instead of 2 + 2 you would type 2 2 +. Teachers in general are NOT used to seeing this and it freaks them out.

I had to do a cosine without a calculator once. Utter brutality, I'm pretty sure it violates the Universal Declaration of Human Rights to start with, and forgetting to convert to radians the first time didn't help. In the days before calculators, these were typically done with tables. Very, very long tables.

Also, I preferred not to take seventeen hours to do regressions on a couple thousand points of canned data in physics.

There's a more important reason than requirements that keep them expensive - even where they aren't required, they're still just as expensive. There's only four major manufacturers, two of which (Casio and Sharp) don't make very good calculators (I bought a Casio at $70 to save some money, and it constantly frustrated me because its statistical regressions were all inaccurate). Most stores only carry TI models, and HP are even more expensive than TI.

For an interesting note, any TI graphing calculator lower than the 89 is highly similar to the original black and white Gameboy in hardware. The typical cost of a Gameboy these days is, what, about $5?

You think oxygen grows on trees?

I bought a TI-83 in 7th grade and used it up until my freshman year of college. I just recently upgraded to a TI-89 Titanium and it has paid for itself in convenience. I guess if you don't do higher level math on a daily basis, it IS a waste of money.

Calculators like the TI 89 this are essentially Maple in your (very large) pocket or backpack. I couldn't live without mine, even though it only has like 4mb of memory =)

Sadly I am not a math person. Numbers make my brain melt. I can seem to handle learning just about anything else, but put some numbers in the mix, especially numbers with letters, and I just fucking can not do it I can add/subtract. I can't multiply in my head, the only reason I can is because I know the answers to the problems. I don't know that 6x6=36, I've memorized that that is the correct answer. So if it's anything other than the standard table then I break it down so I can add up all the broken down answers. I'm so bad at math it makes me sad.

Have to agree here, I had one in 9th Grade, I think (about 93?) and used it all the way to my 2nd year university math for Comp Sci. It was expensive but I still have it today and it still works fine. Sure it may not look pretty but it did everything I ever needed it to and probably would have carried me into advanced math if I ever wanted to torture myself.

As for taking calc classes without them. I know some schools are still living in the 50's and expect you to do everything by hand, but here in the modern age we have technology to help us. My college calc classes were a step backwards from my high school calc class. Linear regression by hand? I've got better shit to do. Like learning more calc instead of wasting my time doing shit by hand 1000 times over.

My University Calculus classes have a strict no calculator policy for tests/exams. For homework, they encourage use of hardcore graphing calculators and mathematics programs.

To their credit, most of the intense problems requiring arithmetic are set up only, not solve.

The tests were almost always no calculator and you could use math software for the homework.

Gamertag: PrimusD| Rock Band DLC | GW:OttW - arrcd | WLD - ThortarWhy all graphing calculators don't use RPN is beyond me.

This is why I have such calculators.

Say you have a complex integral. Yes, I can evaluate it by hand. But, I can do integration by parts three or four times, probably with liberal use of the chain and product rules, which sucks a lot (it sucks slightly less if the integral is a polynomial multiplied by some other function -- Kronecker's method FTW) OR I can type it into the TI-89 and have it spit out an answer in a few seconds. Same goes for matrices, fuck finding the inverse of anything more than a 2x2 matrix.

There's innumerable other reasons too, but those are the two I've been running into most the last couple weeks. FWIW, I also make liberal use of integral tables.

How is it I can build computers no problem, but not even know how to store a number to 'X' as in 2X = an actual integer that I put into X.

I now know how to do that via the store key, but not without using these fuckers for 5 years. =/

Also, why do the screens suck so much? They cannot have at least a higher resolution? I mean, I don't care about color LCDs or anything, but the pixels are just huge on these fuckers...

couldnt do on the TI-89 what I can do in maple. So no!!

I had a nice TI-89 Titanium till I lost it, I then moved onto an HP-50G , so far so good, but I perfer maples glory.

If I was doing Computer Science and Engineering (and thus required to take circuits), I'd only be allowed a TI-30a (or whatever you prefer to call those scientific calcs) for most of my courses next semester. However, I am a Computer Science major. I'm not required to take the same types of courses, and I'm allowed to use my graphing calculator for most any math course left in my education (with exceptions for certain tests and such, of course).

I do agree that the calcs should probably be a lot cheaper. But it's a one-time purchase, they last for freaking

ever, and the software they run is quite well designed. I do not grudge TI the extra money. It's peanuts compared to tuition and/or the combined cost of my textbooks, anyway.Edit: TI-89 really isn't like Maple. I prefer to think of mine as a sort of [more] modern, portable Apple II.

It was awesome for playing tetris on.

I used the SHIT outta that thing for the longest time in both HS and college. Especially in math/physics/engineering. A LOT!!! of those classes is just getting down to the solution, but being ABLE to solve something with a regular calculator is fine. I dunno about you guys, but my classes were often time limited in test sessions and any time saved using a calculator was time spent on the next problems.

I still have that thing in a drawer somewhere. Haven't used it much since college, but I surely used the hell out of it then.

Shit, even when we do have to do some basic calculation now, we usually round things so that we have 8 x 10^15 instead of 8124874392487387.

That said, I've seen a lot of engineers who can't seem to live without the latest and greatest from HP. So I think maybe that's just a science/math phenomenon.