Quote Guset ASTRO491K(Well for starters, the touch screen, and 3d graphing, and Laplace transforms and inverse Laplace transforms, and Fourier transforms, and please understand that none of that stuff is kiddie math like pie charts. In addition, what is seriously lacking is some standout math capability that would make nspire the more desirable product. It just doesn't have such features and because it lacks what other calculators have, it is obvous that the other calculators are the better buy. greengrin.gif) Another point I was also making is that for high school students they need a calc that will be allowed on their test. The classpad's qwerty keyboard is a serious drawback in this respect . Another thing I've heard about classpad on this forum is that you must pay for os updates . You be the judge on this. It might not even be true, its just something that I read on this forum. Definantly for high school students the classpad is clearly not the best choice. And for college, a pc program will do just fine. I honestly don't see any reason to purchase a classpad. You can't use it in school, you may have to pay for updates, it cost just as much as a nspire that can be used in school, and it lacks math functionality that high school students badly need like convert sin to cos, and you can find pc programs for college that do far more than a classpad for the same price. By far the inability to use the classpad on test out ways anything the nspire lacks. It might be a good calc but for students what is the advantage of good calc that they can't use on test when there are other good calcs that can be used on test and lack math functions that they don't need, like laplace. Some high school student may not have ever heard of laplace.
Ok, I understand what you are saying about high school and how something like Mathematica of Maple would be a good choice for college, however it is not likely that it will be up to the student to choose between a laptop or a calculator, although when a calculator is required, while there might be some recommendation, it is usually up to the student to choose what calculator he or she will use. In saying that, I want to point out that there is great variation between college courses because college and university teachers have far more freedom than high school teaching which is more standardized. Now here is the kicker. You are going to be to busy and challenged learning to subject material to deal with learning a new calculator at the same time. In fact, you are at a disadvantage if you are not thoroughly familiar a really good CAS calculator such as the Classpad, or HP50 or even the TI-89 "before" you go to college. Yes, you might be able to survive with the nspire "cas model" but if you are an engineering or physics major trying to get by with the nspire is laughable.
So you really need to get used to a good calculator before going to college and that might mean occasionally borrowing a different calculator to take a high school test with. Discuss that possibility with your teacher. My point is this, because you definitely need something better than an nspire in college (unless of course you are an english or history major), and since you really need to know your calculator well before you go to college, high school teachers that use or require the expensive nspire, when the less expensive and easier to operate TI-83 or 84 will do just as well (and can be chucked in the trash when you go to college), are doing their students a big disservice, and they need to really think about that. Can you now see why I question the judgement of high school teachers that teach their students how to use the nspire calculator. That is wasted time, money, and effort that probably won't be of any future value. In addition most college math (as opposed to engineering) courses won't even allow you to use a calculator, so what in the world are our high school teachers doing by creating a dependency on calculators. That is a very bone headed move. Yeh, the teacher gets to play with a new toy that props up his/her math capabililty, but it sure doesn't do the student any good.