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  • Casio CFX-9850GC Plus Graphing Calculator (White)
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Casio CFX-9850GC Plus Graphing Calculator (White)

by Casio

Available from these sellers.
  • Graphing calculator perfect for math and science students
  • 900+ Advanced functions, including statistics, regressions, and financial calculations
  • Graphing functions including rectangular and polar coordinates, vertical lines, and more
  • Stores up to 38 programs; 32 KB total memory
  • 1-Year limited warranty
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Product Description

Product Description

Casio (CFX9850PLUS) Casio's premier graphing calculator is clearly the CFX-9850G Plus. Gain unpreced

Amazon.com

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


Product Details

  • Item Weight: 2 pounds
  • Shipping Weight: 2 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00004TVDN
  • Item model number: CFX-9850GC PLUS
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (28 customer reviews)
  • Date first available at Amazon.com: August 1, 2000

Customer Questions & Answers

Customer Reviews

4.4 out of 5 stars

Most Helpful Customer Reviews

37 of 38 people found the following review helpful By Coach K on November 20, 2004
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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22 of 23 people found the following review helpful By "first_general" on September 12, 2001
The 9850GB is excellent calculator for the money. I bought this the 9850GB apx. four years ago after my TI-85 (what ever happened to that model anyway??) got stolen. I'm glad it did, the 9850GB is much easier to use.
I am an Engineering student and used it constantly. Oh, and the review that says you can't play games on it...they are wrong there are numerous websites with game programs on them that work just fine. Another review stated that most teachers don't explain how to use this model, this is true; however, it's also true that in college professors don't explain how to use any model.
Also note that this calculator is very easy to program for.
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37 of 43 people found the following review helpful A Kid's Review on February 17, 2001
Dollar-for-dollar, CASIO makes the most affordable and powerful calculators (for the price). I could not locate the Casio FX 2.0 in any of my local major retailers (Casio, are you stupid?) which I needed for electrical engineering class... and so I had to settle for the CFX980-GBPlus. From the start, I was a tad dissapointed, although for the most part.... there were few things which I could not do... my primary beef was just the dumb way in which you had to perform some operations which were very laborious or cumbersome... but thats true with TI's and even worse with the top end HP's. For instance, I need to readily convert alot of HEX/BINARY/DECIMAL numbers for a microprocessor and ASM class; and I found this to be a very tedious and slow operation. The manual is very big and fairly thorough, yet there were vital and basic precalc math functions which were not even in the manual. If you are planning to use this calculator for calculus, my advice would be to forget it.... Calculus IS NOT the strong suite of this unit.. It does certain things like complex sigma notation fairly well... but you encounter way too many errors when you start getting into integrals. Using a standard calculus book as a test reference, I plugged in about 60 different definate and indefinate integrals and I got an error rate of 70 percent... I'm not doing it wrong... it's just the calculator sucks for calculus. It'll work for basic calculus; if your really desperate.... but if your buying this specifically for Calculus class.... just buy one of the cheaper TI models. The one thing I like about CASIO is the keyboard layout is better on average, than either TI or HP... nothing pisses me off more than having to go into a complex menu series just to perform a very basic trig operation..Read more ›
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17 of 18 people found the following review helpful By Alireza Mansouri on February 8, 2003
I'm a college student and I'm using this for my calculus classes. OK, here's the deal, if you don't know how to use a manual and how to "LEARN BY YOURSELF" how to use a calculator this calculator isn't for you. you should go with a TI 83+ or 86 or 89. whatever you feel more comportable. But sometimes when you have to have several graphs on one screen for compairing them, 9850GB is the best you can have. It varies each graph by colors. This calculator only has 32 Kb memory. it's not a lot of memory but it does the job. and BE CAREFUL, you have to buy the cable individualy and it doesn't come with the calculator. If you're a patient college student, this calculator is for you and it does quite enough jobs. the 450 page manual help you figure this calculator out.
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17 of 18 people found the following review helpful By Michael Smith VINE VOICE on March 30, 2001
I got the non-plus model for forty bucks two years ago and I love this calculator. My school uses this model as well. The color part is great, and in my opinion they are much easier to use than the TIs because of the menu structure. The model being offered here is also great because it solves all sorts of equations (don't cheat, OK?) and for that reason some teachers may not allow it. Being in Alg 2/Trig this year, this calc works great. And my math teacher says it will be fine for precalc. If you need just a graphing calculator that does a fair amount of features at a decent price, buy this calc.
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