Casio CFX-9850GC Plus Graphing Calculator (White)

by Casio

Product Details

• Item Weight: 2 pounds
• Shipping Weight: 2 pounds
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B00004TVDN
• Item model number: CFX-9850GC PLUS
• Average Customer Review: 4.5 out of 5 stars  See all reviews (26 customer reviews)
• Amazon Best Sellers Rank:
  • #60 in Electronics > Office Electronics > Calculators > Graphing
• Date first available at Amazon.com: August 1, 2000

Product Description

Amazon.com Product Description

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 Description

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.

Customer Reviews

Most Helpful Customer Reviews

36 of 37 people found the following review helpful:

5.0 out of 5 stars Beats the TI-83, November 20, 2004

By 

Coach K (NY,NY) - See all my reviews

This review is from: Casio CFX-9850GC Plus Graphing Calculator (White) (Office Product)

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.

22 of 23 people found the following review helpful:

5.0 out of 5 stars Great Calculator, September 12, 2001

By 

"first_general" (Lansing MI) - See all my reviews

This review is from: Casio CFX-9850GC Plus Graphing Calculator (White) (Office Product)

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.

37 of 42 people found the following review helpful:

3.0 out of 5 stars You get what you pay for - but it's a good buy., February 17, 2001

A Kid's Review

This review is from: Casio CFX-9850GC Plus Graphing Calculator (White) (Office Product)

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.. Personally, I think Casio should put a base-n conversion and a polar-to-rectangular converter on the keyboard because those are pretty basic functions which people may need access to readily. They should also put a hotkey for calculus on the keyboard... so I dont have to go into the menu to get to calculus.. although it's still pretty easy understanding the very simple menu structure. All in all.........money well spent. I'm happy... but this is no substitute for a TI-89/92 or a HP48/49. I'm probably not even going to bother getting the Casio FX2.0... because I suspect it's not going to be good for calculus.. As for all the high school or college students who say that you should get a TI just because it is "standard"... while that is wise in some respects, it's also foolish. Teachers can help most if you have a TI calculator, because thats standard in most U.S. schools... but ultimately, it's the students responsibility to learn how to use the calculator... it really only takes a few days of playing around with the calculator to learn how to do most of the functions... so there should not be any need whatsoever for you students to be asking your teacher how to use the calculator... it's not calculator class... it's math class. They teach the math... YOU learn your own calculator.