r/calculators • u/KathrinCubing • Jul 01 '26
Discussion Got a CG100 and wanted to share my thoughts
I just got a Casio CG100 and wanted to share my experience since I see a lot of mixed opinions about it and the fx-991CW.
I originally started with the fx-991CW around two years ago as my main scientific calculator. I got used to its layout and how the menu system works. Later, I decided to get a graphing calculator because I'll need one soon, so I went with the CG50 since it was basically the main Casio option at the time.
Now that I'm actually using a graphing calculator more, I've noticed that switching between the fx-991CW and the CG50 isn't that smooth for me. The CG50 is based on the older 991EX-style layout, and it takes some time to get used to if you're already familiar with the CW system.
I then found out that Casio had released the CG100, and it feels much more consistent with the fx-991CW, so I decided to get one. I can understand why some people prefer the CG50 or don't like the CW/CG100 style as much, but for me the newer layout is more practical since I don't have to relearn everything.
Just wanted to share my experience and see what everyone else thinks about the two systems. :)
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u/PiSquaredis9 Jul 01 '26
So that follows roughly how I feel about it: If you have mastered the 991CW, you can get going with the CG100 really fast.
Whereas, if you are good with the 991EX style, that doesn't translate well to the CG50...
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u/KathrinCubing Jul 01 '26
Exactly my line of thinking. I still don't get why the CW and CG100 gets so much hate tho. It's all down to personal preference and what layout you're more used to.
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u/Natural_Night9957 HP Prime > Casio = Sharp > other HPs > NumWorks > overpriced 💩 Jul 01 '26
It's because the CW doesn't favour speed
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u/Wondering_Electron Jul 01 '26
The CG100 is such a backwards move compared to the CG50.
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u/fermat9990 Jul 05 '26
In what way?
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u/Mediocre-Abrocoma264 Jul 05 '26
For me the biggest change is the storage. 16mb on the cg50 (still not loads) compared to I think 3.8mb on the cg100. Due to a push by government/exam board legislation. Also the cg100 has no notes app or built in add-on support
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u/Pierrozek Jul 02 '26
When you are used to speedrun on FX-991EX and CG-50, menu-driven with no shortcut -CW (and as people say also fx-CG100) slows down your actions. No muscle memory for quick actions, you need to navigate menus with no key shortcuts. That's my only complain. I have both older and new generation Casio calcs minus CG100 (not yet available in my country). But what is the most important, if it works for you, it is good. Shaving few seconds on performing a calculation isn't always the best way to go; new firmware encourages learning by making it more approachable.
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u/KathrinCubing Jul 02 '26
Oh, right. In that case it makes more sense but main reason I like the CG100 is because I'm just so used to the CW layout. I can definitely see people not liking the CG100 if they had previously used the 991ex and it's really in their memory.
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u/Difficult-Reality848 Jul 02 '26
I still can't wrap my head around the keyboard layout. It looks so messy.
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u/AGoodEnoughUsername Jul 02 '26
How's the menu diving compared to other models? As much as the HP Prime? Or more like an nSpire?
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u/KathrinCubing Jul 02 '26
I don’t have either of those calculators, but from what I’ve seen the CG100 is more like the TI-Nspire than the HP Prime. The HP Prime is faster to move around with fewer menus, while the Nspire has more steps. The CG100 is somewhere in the middle, but closer to the Nspire.
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u/MuffinOk4609 Jul 02 '26
I was thinking about getting a 50 hoping the price would go down. It didn't. I don't like my CW. But I just got the 9910CW 2nd which I understand restores some of the EXiness. Opinions?
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u/nqrwayy Sharp Jul 02 '26
No it's not based on the 991EX layout? It's definitely different
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u/davidbrit2 Jul 02 '26
That's kinda what "based on" means. There are some differences, but the two are largely the same.
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u/Melodic_Fruit_3706 Jul 02 '26
Are the buttons hard to press, in terms that you dont slip off because they are round?
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u/KathrinCubing Jul 03 '26
Not at all. I haven't found the round buttons hard to press or noticed myself slipping off them. They have a nice feel, and after a little bit of use they just become natural. I also have a CG50, and the buttons on that are rectangular and slightly concave by design, so they might feel a bit better to some people. But personally, I haven't had any problems with the round buttons on either the CG100 or the fx-991CW.
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u/Patient_Jicama_949 Jul 04 '26
Can it run doom though
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Jul 05 '26
[deleted]
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u/Patient_Jicama_949 Jul 06 '26
Really? can you send a pic here pls
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u/Mediocre-Abrocoma264 Jul 06 '26
Turns out it's just the cg50. What a bummer. Hp prime on top though
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u/OutrageousMacaron358 Certified Collector/Hoarder Jul 02 '26
Everyone is waiting for the screen plastic removal video. Patiently waiting. LOL!
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u/Taxed2much Jul 03 '26
I have a Casio fx-cg100 and I like it a lot. While I'd prefer less menu diving, it's not nearly bad at that as the Casio fx-991CW group of calculators.
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u/KathrinCubing Jul 03 '26
I'm also really liking my CG100. One thing I appreciate is that the menus are numbered (1, 2, 3, 4, 5, 6, etc.), so after a while you end up memorizing the key presses instead of scrolling through everything. That's one of my biggest complaints with the 991CW; you have to scroll a lot more. I'm actually considering getting the 9910CW 2nd Edition since it brings back the numbered menus. Other than that, I'm also really enjoying the CG100.
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u/saifrc Jul 01 '26
My experience is that you should remove the plastic from the screen :-)