Average Reviews:
(More customer reviews)I am a math teacher at a new private Bronx high school, and compared the TI-83 with the Casio in numerous regards before deciding which one our school would use. Hands down, the Casio wins, and it is cheaper as well. Note - I do not work for Casio or TI.
A) The calculator is more user friendly. The options are menu driven in a more intuitive way. What took me a minute or two to locate and figure out out the TI, took less than half the time on the Casio. Don't trust me- see for yourself.
B) The Casio is slightly faster than the TI
C)Features: The casio adds a dynamic graphing system (lets you change a coefficient and watch the graph change), which is very useful when teaching. I also like the EQUA feature, which lets my students calculate 2/3 equations, 2/3 unknowns, and solve quadratic or polynomial equations. Maybe the TI does this too, but I couln't figure it out.
D) The color thing I suppose is nice, but I use the CFX-9750, which is black and white and cheaper.
The only downside is that most colleges use the TI's, unfortunately. I liken it to most places using Microsoft when there are better alternatives out there (monopoly power). Anyway, a student who uses the Casio can do anything the TI-83 can do.
I'm a big fan, and my students seem to like it.
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For students in any field, but especially math and sciences, the Casio CFX-9850GC PLUS graphing calculator is a problem-solving tool with over 900 features for storing, graphing, and analysis. You can execute evaluation tables on a split screen (which allows you to trace the graph and scroll table values simultaneously) to display graphs and tables. With a long list of features, you can master list-based, one- and two-variable statistical calculations, a variety of regressions, statistics, hypothesis testing, and advanced financial calculations.
The large, readable display exhibits eight lines and 21 characters (15-digit, 10-plus-2 display) in three colors. Graphing functions include rectangular and polar coordinates, parametric, inequality, and vertical lines. Since graphing is animated, you can change the variables in a formula and watch the graph move accordingly.
It also performs statistical calculations such as scatter plots, histograms, box and whisker plots, and eight regression types. The dual screen shows two graphs: a graph and zoom or a graph and table on the same display. In statistical graphing you can use list-based matrix calculations of up to 26 matrices. The list editor manages up to 36 data lists and exchanges data with matrix and table modes. An instant-replay key recalls your previous entries.
The built-in communications port enables linkup to a personal computer. The CFX-9850GC PLUS stores up to 38 programs with 32 KB total memory. It is protected by a hard slide case and powered by four AAA alkaline batteries and a lithium battery for backup to preserve a constant memory even when the unit is turned off.
The Casio CFX-9850GC PLUS comes with a comprehensive guidebook and is supported by a one-year limited warranty. --Barbara Price
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