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发表于 2010-10-14 01:22:37
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今天上网查了点Ti的资料
贴在下面，希望对大家有用
The TI-73 is intended for middle school students in basic algebra classes. It performs many basic arithmetic and graphing functions. However, we only recommend the TI-73 if price is an absolute concern and the calculator will be used only for elementary mathematics. For slightly more expense, the TI-83 Plus will be a far superior buy.
The TI-83 Plus is intended for most high school students. It has many enhanced features in addition to those of the TI-82 and 83. This calculator makes an excellent first choice for the average student. The TI-84 Plus has more available RAM and a faster processor than the TI-83 Plus.
The TI-84 Plus and TI-84 Plus SE are esentially a TI-83 Plus with a few more features, including a clock, USB port, and additional speed and memory. Designed for high school students, these two calculators are for the users wanting to get as much out of their calculator as possible. If you are looking for a calculator based solely on its math capabilities, the TI-83 Plus will do as much as the TI-84 series will at a cheaper price. However, if you can afford the added cost of the TI-84 series, it will provide a better value than the TI-83 Plus.
The TI-89 and its QWERTY-equipped brother, the Voyage 200 PLT, are among the most advanced Texas Instruments calculators on the market. The Voyage 200 PLT is a TI-92+ in a fancy new case with a much needed increase in available Flash ROM, and is at the top of the line. If you need the utmost mathematical horsepower, pick up any of these.
The TI-89 Titanium offers the same mathematical capabilities as the TI-89, so there is no advantage there. However, there is more available Flash ROM, much more! The regular TI-89 is suggested for gamers because not all of the current programs work on the Titanium, although the situation is improving. However the Titanium has several other features, including a USB port, which makes it much more friendly to the average user. The Titanium is essentially a Voyage 200 PLT but without the QWERTY keyboard. The Titanium has replaced the regular 89 for sale in many stores.
The TI-Nspire is, as of this writing in 2007, a brand new model. It exists as both the TI-Nspire and TI-Nspire CAS, the latter having a CAS (Computer Algebra System). These models are drastically different from any prior calculators and it remains to be seen how well they are adopted. We recommend that average students stick to the other models above until the long-term success of the TI-Nspire is proven.
另外，Ti 还有个外置键盘Ti Keyboard，不过只限于美国和加拿大销售，国内似乎买不到。用这个键盘比用CASIO4850键盘敲代码的畅快感会高出N倍！
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楼主: simeicilang
显身卡
发表于 2010-10-14 19:57:30
