What is the main difference between the TI-83 Plus and the TI-84 and how do the prices compare?
The major differences between the TI-84 and the TI-83 Plus are that the TI-84 has more memory, operates at a faster clock speed (about 2.5 times), and has more applications loaded. Frankly, you might not notice the speed unless you’re a gamer or running some long programs. Although the TI-84 has more applications loaded, you can download some of these free for the TI-83 Plus. The TI-84 also has a clock, and the TI-83 Plus doesnt if thats important to you. There are also some of new statistics functions is the TI-84 Plus Silver Edition. These are as follows: Manual Fit under the STAT>Calc menu; X2 GOF-Test (X 2 means Chi-squared); and InvT under DISTR. Frankly, Im especially glad to see the InvT because I had to write a program for the TI-83 Plus to do that, but many students dont have it. There are also several Catalog items that may or may not have importance to you. Heres a list that I got somewhere, but Ive never really check it out completely: χGOF-Test , checkTmr , ClockOff and Cl