Customer Reviews

Casio CFX-9850GC Plus Graphing Calculator (White)

5 star:		(19)
4 star:		(4)
3 star:		(1)
2 star:		(1)
1 star:		(1)

 

 

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.

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.

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.

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.

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.

I bought this calculator before i enetered the 9th grade. Everyone in my class had the Texas Instruments TI 83 so i wanted to be different so i bought the CFX-9850GB Plus. It was the best desicion of my mathemtics life. Aftewr my friends saw the features and the user friendly menu they also decided to buy one. It has more features than the TI 83 and is easier to use. It is a bargain at the price it is being offered at. Even if you already have a graphing calculator i suggest buying one ASAP.

I am in a college statistics class and I am glad I have this calculator instead of a TI-83 or ANY TI for that matter. My professor would give instructions for both the TI-83 and Casio CFX-9850 GB Plus and let me tell you the Casio has fewer steps almost all the time! With the TI, it is very easy to put in statistics info wrong if you cannot remember the proper order to input the numbers. With the Casio, it tells you what numbers to put where. If I had to pick between the TI and the Casio, I would pick the Casio. Even my mathematics professor recommends it for ALL of her courses.

I bought this graphing calculator for my daughter in High School. She requested this model mainly for the color display. It is very user friendly, and the display in color is a major plus. The manual, though quite big, is not so intimidating as one might suspect. Even though, as most high schools, the TI-83 is the "standard", my daughter prefers the Casio because it is easier to use and she has not had any problems applying the general class instructions. Would purchase again.

I bought my Casio CFX-9850GB Plus in 6th grade for Pre-Alg. and I'm now in 11th grade AP Calc, and my calc. still works like it did 5 years ago. The color screen is a life-saver when graphing multiple ftns. or just for something pretty to look at. It's equation solver is great for tests, and the easy-to-use menu is much better than that of the TI-graphing calcs. Also, it has been in my backpack for years, and I drop it almost daily, but it hasn't affected its performance at all. At $70, this is a bargain, and it may just be the last graphing calculator you'll ever need!

I bought mine to use in my classes for my A.A.S. Electronic Engineering. It has been a mind-saver when it comes to finding the answer to any equation I come across. The mathmatical features of this unit are more than enough for any field of study. I would recommend it for anyone. The only drawback I could find with this unit (as with any graphic unit), is the time it takes to learn some of the more advanced features, however, there is a very informative handbook to help you get the most out of this product. If you purchase one, you should not be disappointed.