Big plus with the CW is spreadsheet data, f(x), g(x), and stat data is not lost when switching modes. You can now use f(x) and g(x) in other apps like spreadsheet. Also you can set the power timeout to 60min. A huge draw back is the loss of the CALC feature and ":" that allowed for stacked calculations. Perhaps this loss can be made up within the spreadsheet mode. I think the improved data retention is well worth the compromises if you are considering doing from the EX to the CW.
@dimaminiailo372311 ай бұрын
the changes applied to the variables somewhat remove the sense of CALC, although the colon func was amazing. you could literally write a small program with non-programmable calculator
@HamzaAleem_Math3 ай бұрын
And when I define matrix and off the calculator the data is not lost this is the amazing feature and also with some other modes I save my data in matrix. This is the reason I love this calculator.
@vyrsh0Ай бұрын
@@dimaminiailo3723 I have always tried to find what the colon does, but still cannot figure it out nor can I find any videos on it. Do you know what I should put on KZfaq to find a video about it?
@dimaminiailo3723Ай бұрын
@@vyrsh0 Look in the instruction or any 10-hours long video on using the calculator. If you input something like y=x+2 : z=2y : x=y+2 with initial y = 0 it calculates the formulae from left to right upon pressing = 0+2 = 2 2*2 = 4 4+2 = 6 and so on. The notable thing is that you may insert x = f(x) and it replaces x with its new value, which reminds me of programming languages.
@ShebanFPV7 ай бұрын
I would like to share my recent experience with purchasing two calculators. Two weeks ago, I bought the 991CW model for £12, and just today, I acquired the 991EX for £35. My experience with the 991CW was somewhat frustrating. I found it required too many steps to achieve the desired result, such as converting numbers into degrees, entering these degrees, and so on. In contrast, the 991EX offers a much simpler and quicker operation. Regarding the design, the 991EX has round buttons, which might not be to everyone's taste. The 991CW, on the other hand, features convenient arrow keys and an OK button. Its font is clearer and appears more modern. Overall, after comparing both, I have decided to go with the 991EX as it significantly enhances ease of use for me.
@cindyx29734 ай бұрын
Where did you manage to get your hands on the 991EX? They discontinued it and i’m desperately looking for it for my maths exam soon because I also find it frustrating and time consuming for the 991CW
@HamzaAleem_Math3 ай бұрын
Yes I have same though before I too much used fx991cw but when I practice this calculator calculator this is too much better than ex . It is best calculator more features more intuitive design and handy calculator. I advised you to practice this calculator this is a best calculator. I have both but I like cw and used In my day to day life. And when I define matrix and off the calculator the data is not lost this is the amazing feature and also with some other modes I save my data in matrix when I set data in spreadsheet and give it screen off timer 60 min it means less chance of losing data. This is the reason I love this calculator.
@TheEddie5813 ай бұрын
The 991CW has the obnoxious round keys, not the EX.
@cindyx29733 ай бұрын
@@TheEddie581 Agreed I have slightly big finger tips so it’s kind of hard navigating around the eye-sore buttons
@saujanyapoudel89102 ай бұрын
I Set my default output format to decimal so I won't need to change to decimal manually each and every time. Plus I have memorized every order of keystrokes required to use a function of my choice. For doing repetitive computations with large numbers I put them in spreadsheet and derive my required results using 'fill formula' option. I agree on the CW being complicated but the buttons are comfortable compared to the EX. The data inputs in other modes (statistics, matrix, spreadsheet, vector) are not erased when changing mode so you can work with them without re inputting them. The CW does have its pros compared to the EX
@allmyinterests5139 Жыл бұрын
The speed, functions and new display are a plus but i find the older model way more aesthetically pleasing and actually i think the busier keyboard makes accessing the functions easier. Especially as an engineer I need integrals very often and now with the new model you have to go through the menu to find the option for it. And thats only one example, maybe Ill buy the next model if they fix this there and make it less menu based but for now my 8 years old EX still works fine, just replaced the battery and ready to go for another 8 years!
@MentionmeIfuGae11 ай бұрын
Can you recommend some calculator? All of the ex in my place have been replaced by the cw, and they said that cw is hard to operate 😭 (freshman engineering student)
@pu11.__2311 ай бұрын
@@MentionmeIfuGaesame here bro did you purchase any calculator?
@traviswalker89332 ай бұрын
@@MentionmeIfuGaethe EX is not discontinued. I bought a new one 4 months ago.
@gaius_marius Жыл бұрын
Nice review. As an owner of the fx-991EX, I am not a fan of the new keyboard layout or app menu. Instead, I wish they had made other improvements, such as persistent memory and selectable results from the calculation history.
@EJEuth Жыл бұрын
I agree with you. These “impoorments” were NOT for the benefit of the user. If you see my other comments in this video, I believe Casio did these changes to segregate the next generation of users and to make their calculators more difficult to clone/counterfeit.
@traviswalker89332 ай бұрын
@@EJEuthwhich is a good thing as counterfeits were getting better for the 991EX series and we're putting users off Casio.
@andreasrejbrand5042 Жыл бұрын
I find the fx-991EX much more aesthetically pleasing.
@sioux22 Жыл бұрын
Matter of opinion. I paid extra for the CW for the cleaner look. It fits in better with my collection of vintage calculators.
@goofyahhaccount119 Жыл бұрын
@@sioux22 are they the same thing or is one better
@Crazytesseract11 ай бұрын
The fx-991D was even more aesthetically pleasing as far as I am concerned.
@Crazytesseract11 ай бұрын
@@goofyahhaccount119They are not the same thing. As per my opinion the CW is user unfriendly.
@priyanshuyadav764311 ай бұрын
@@Crazytesseracthow many functions in both ?
@kahuna1247 Жыл бұрын
Not a fan. Casio relocating the ANS key is as criminal as HP relocating the Enter key.
@jimn250 Жыл бұрын
I agree - I'm not a big fan of the new menu system of the CW. For the older MS, I have memorized my commonly used unit conversions, so I could press shift+CONV and then punch in the conversion. EX/CW have more keystrokes in comparison (although not having to pull off the cover of the calculator to look up the conversion is arguably a better trade-off). I also like to use the CALC and SOLVE (with = X) features to quickly calculate microstrip trace impedances or other short calculations iteratively. Now it's hidden in the Equation app menu as 'Solver'. I am also not a fan of the keyboard layout change, as I have more muscle memory with the older layout.
@EJEuth Жыл бұрын
I mostly agree with you. This CW feature could make sense for high school classes, but the management of functions buried inside deep menus is a steep learning curve, non intuitive and slowing calculations. As calculation speed is mostly influenced of how easy a user can keystroke the functions and numbers, also,choosing the proper format(Fix/Eng/SCI) As an engineer with 40+ years using calculators and nowadays still having more than a dozen, I have mixed feelings about this CW series.
@jimn250 Жыл бұрын
@@EJEuth I fully agree. I'm always on the lookout for an engineer/professional tier calculator. I use an Nspire CX II most of the time (purely because I can leave it fully charged attached to the computer rather than use batteries) but eventually settling on Sage or Matlab on the desktop most of the time. I only wish an HP 50g modernization is in the works (apparently Swiss Micros has something) but I wouldn't have my hopes too high for that.
@EJEuth Жыл бұрын
@@jimn250 I just bought a Swiss Micros’ DM42, that will be brought to me next August. If I need more, I would use a HP50G (relearning details). More than that, MatLab would be my best path, I guess. SM & community are planning to launch a WP43, already running a Beta based on the DM42 (rev.2) platform. From what I saw, it will be mostly a super powerful RPN with graphics calculator, very nice and thoughtful. I don’t know if they will add CAS.
@aryanmobarakjoy4537 Жыл бұрын
I bought the CW today and to me the problem is it's a little complicated to use... On the other hand EX is much more handy and easier to use... So I will recommend EX and the features are almost same in both
@MentionmeIfuGae11 ай бұрын
Sadly almost all of the ex have been replaced by cw in my place
@aryanmobarakjoy453710 ай бұрын
@@MentionmeIfuGae same... I actually went to buy a EX but the only available option was CW... Turns out Casio stopped producing the EX series which is very sad
@htmlisnice9 ай бұрын
@@MentionmeIfuGae there are plenty of people selling thier ex on facebook marketplace at 2/3 the price
@irishchocolate3872 Жыл бұрын
I just bought this and it is a very nice calculator. However, my favorite is my TI-30 MathPrint PRO. The ClassWiz 991CW is slightly more powerful but the TI-30 MathPrint PRO is more intuitive and engineer friendly.
@CalculatorCulture Жыл бұрын
Yeah I would make a review of the mathprint pro if I could my hands on one. They seem to be only sold in parts of Europe.
@alinajmaldin Жыл бұрын
@@CalculatorCulture Hey, I can ship one to you if you still need one.
@EJEuth Жыл бұрын
My guess is that Casio did it for ECONOMIC/MARKET reasons: to minimize counterfeiting of 991 former series (ES+, EX, LAX, etc), even for the entry-level ones as FX-82CW with several “no name” brands competing with Casio. Using a new Display (hardware) and new menu-driven hierarchy (software) Casio grants itself 1 or 2 years being headache-free of fake complaints and higher profit margin. It might be a challenging bet, where keystroke simplicity and almost-universal use of former standard platform (Casio, Sharp, Canon, no name, etc.) is pushed aside to create this new menu-driven philosophy. Also consider that MORE KEYSTROKES for one problem solving is in the OPPOSITE direction of those outstanding RPN-based calculators, from the golden age of HP. Now CASIO (re)created a scientific calculator series that has the same lot of functionality, but with much MORE key stroking, for well known high school and Engineering problems, with ENG/SCI and Unit Conv. front and back. I foresee this CW series may help SHARP (as EL-516W) and TEXAS (as 30X expand 36X) both with continuous history memory and a “classic” algebraic keystroke operation most of us already know. I do feel pity for students and engineering colleagues that receive one Casio’s CW calculator as a backup/emergency on the same day of an exam. God helps that one!
@tanya47778 ай бұрын
Yeah I know right I got the cw one for an emergency from my friend and it took me separate time to figure it out during exam
@HamzaAleem_Math3 ай бұрын
Yes I have same though before I too much used fx991cw but when I practice this calculator calculator this is too much better than ex . It is best calculator more features more intuitive design and handy calculator. I advised you to practice this calculator this is a best calculator. I have both but I like cw and used In my day to day life. And when I define matrix and off the calculator the data is not lost this is the amazing feature and also with some other modes I save my data in matrix when I set data in spreadsheet and give it screen off timer 60 min it means less chance of losing data. This is the reason I love this calculator.
@TTV_CowboyCA11 ай бұрын
Just bought the casio fx 991cw for comp science math, hopefully will be able to keep up with that course
@jeekakrishnaАй бұрын
best of luck for the course and learn the calculator
@TadkaGaming14 күн бұрын
how's it going? am also thinking of buying for cse
@TTV_CowboyCA14 күн бұрын
@TadkaGaming I dropped out of the course so I don't use it anymore but from what I remember it worked great
@TadkaGaming14 күн бұрын
@@TTV_CowboyCA what are you doing now??
@TTV_CowboyCA14 күн бұрын
@TadkaGaming working at a warehouse and also applying for second jobs to help cover my bills lol
@Silanda11 ай бұрын
From what I've seen of it, I'm not a fan of this redesign for two reasons: Firstly, aesthetically, I simply think it looks cheaper. The more significant issue is what appears to be the increased menu diving. This same crap seems to get pulled on things as diverse as PC OSs and synthesizers: claims that burying functionality in menus somehow improves "ease of use". No, sorry, but IMO it doesn't; it just makes doing anything slower. Putting common functions under menus is typically one of my problems with using graphing calculators too. I'll take more button based functions any day, and given the amount of complaints I've seen about the entire CW series, I don't think I'm alone in thinking that they're a bit of a misstep by Casio.
@dubrovink664 ай бұрын
Exactly what i was thinking! Step in the wrong direction.
@moktafizaman90772 ай бұрын
NGL, after using the 911CW, I like it more than my previous 911ES Plus. It's faster, the keys feel better, are much better stabilized, and there are many more reasons.
@gobemi5372 Жыл бұрын
Thank's for this video! This new "layout" is a joke. Casio desperately needs designers who have a clue about what they are doing.
@EJEuth Жыл бұрын
Suggestion for CC channel: As an afterthought of my former comments in this video, I would suggest comparing this CW, an EX (both Casio) with a Sharp one, considering time (keystroke and calculation) to solve 2 or 3 common problems. Regarding the Sharp (also Japan based) I have here in Brazil 2 units of Sharp EL-W516TBSL, having WriteView, 4 Line Display, Battery and Solar Hybrid Powered, complex numbers, with Root-Finder/Solver, 3x3 Sim.Eq., Integral (Simpson method), which is somewhat similar to the discontinued FX-991ES+, now seen in Osalo’s 991ES clone, I guess. Regarding the TEXAS, TI-30XII and TI-36X Pro would be 2 famous options. How about checking the “alternate” / “No name” calculators? Parents and students around the World would appreciate that too. My guess would be to check which AP High School or early Engineering problems are more frequently asked - not for Benchmarking the NumSolver or IntgSolver, but real life set of 2 to 4 problems, as an exercise / homework / short-exam sheet. Could even fold in the future as dedicated “General”, “HS”, “AP HS”, and a “undergraduate STEM” page-sheets. Making a video using the same sheet for a given calculator - one video per model, might be covered in ~10min each. A summary of keystrokes per problem number of menus, and overall time employed, or special tricks to bypass model-specific limitations, or the use of exclusive features, could be in the summary at the end of each video. No one is going to blame if a geek could solve with fewer specialized keystrokes, where the Correct result is #1 feature, Agility probably #2 and Intuitive operation a #3. My feeling is such kind of vídeo would become a success among younger users (and their parents), probably within CC scope or mission.
@saujanyapoudel891016 күн бұрын
Imagine someone borrowing this calculator for an exam 😂. I can only imagine the horror of them trying change to decimal or even find the factorial function.
@CalculatorCulture11 күн бұрын
It’s better than borrowing an RPN calculator I guess. 😉
@MrDands Жыл бұрын
Getting rid of the engineering and SD keys was criminal. Plus no angle key for complex math. This is not a calculator for engineers anymore. Casio messed up bad on this one. Returned mine, buying an extra 991ex to be safe.
@CalculatorCulture Жыл бұрын
True. I guess the core market is high school kids who wouldn’t have much use for those keys.
@numbshuvam8207 Жыл бұрын
You can use angle from Catalog > Complex > Down Navigation Key > OK. Very painful.
@harini2801 Жыл бұрын
Where to get 991ex? It is showing unavailable everywhere
@MrSpec0p Жыл бұрын
@@harini2801amazon still has real ones
@Crazytesseract11 ай бұрын
@@harini2801Discontinued in the Indian market. You can order from Germany but you'll have pay a lot extra.
@arthurlam5832 Жыл бұрын
Under the speed of getting the answer, unless you need Casio to calculate equations, under normal calculation I generally do not recommend this model.
@vahetarayan11 ай бұрын
Can that calculator find x?
@entranceexamvideos10 ай бұрын
Where is the permutation and combination in this calculator. I bought yesterday for my exam but i cant find those which are needed to my exam. Ending, i borrowed calculator last minute.
@saujanyapoudel89102 ай бұрын
Press Catalog, select Probability and scroll down to permutation (or combination)
@kychoi2653 Жыл бұрын
There should be some advanced changing for example Shift-[X] to and Shift [division] to
@TheEddie5813 ай бұрын
As an electrical engineer, I cannot say anything positive about this new CW, it is a pain to use. the EX had everything I wanted, the CW is a inferior in many ways. Why on earth did they put ENG under that Format key - just to annoy people with doing 3 keystrokes instead of one? I am glad I still have an ES and EX. I hope they will come with a successor of the CW that address all deficiencies it has in comparison with the older models.
@CalculatorCulture3 ай бұрын
Yeah i should have talked more in the video that’s it’s less suitable as an engineers calculator.
@ahsanyunas Жыл бұрын
There was another one by Casio with round buttons. it was Casio Mini landscape 6-digit calculator with no floating-point option.
@CalculatorCulture Жыл бұрын
Yeah Ledudu also mentioned the pocket mini too casio.ledudu.com/pockets.asp?type=1645
@GrigRP Жыл бұрын
Looks very inefficient. Too many menus. Extra button presses for the same function. Casio went for form over function.
@user-sy5jo4se5h Жыл бұрын
you have to be careful when doing inverse logarithms as the function is not where you expect linked to the log key on other models
@luisalejandroacuna9879 Жыл бұрын
Is there a natural exponential function in this calculator? I know you can enter the number e followed by the [x^y] key and then the exponent, but that's slower than the direct exp function. And I don't mean slower to type in, but slower to compute. For example, in an integral using exp (say, e^(x^2) from 0 to 5) it would be faster to use the direct exp function. Do you know of a way?
@iraqisonic9920 Жыл бұрын
In the film Termator Part 2 John Conner opens the blade of games with a pocket computer you can explain about it
@jeevar24462 ай бұрын
Im a computer engineering student, there is no multifunction button in this calculator and also there is no clac button , which means i cannot performe sequential calculation and numerical analysis on this calculator. Worst calculator in my opinion. Another problem is they hide eng function in the app.
@SergamingPlayz10 ай бұрын
I dont know why i like calculators more than a computer right now
@talesoftrilok8 ай бұрын
The quality of texts on buttons feels soo much better on the EX
@HamzaAleem_Math3 ай бұрын
Yes I have same though before I too much used fx991cw but when I practice this calculator calculator this is too much better than ex . It is best calculator more features more intuitive design and handy calculator. I advised you to practice this calculator this is a best calculator. I have both but I like cw and used In my day to day life. And when I define matrix and off the calculator the data is not lost this is the amazing feature and also with some other modes I save my data in matrix when I set data in spreadsheet and give it screen off timer 60 min it means less chance of losing data. This is the reason I love this calculator.
@Isaac-gh5ku2 ай бұрын
I'm not from UK but from Malaysia, and I WANT THAT CALCULATOR!
@dimaminiailo3723Ай бұрын
no you do not, trust me. I own both EX and CW, and the former is much better than the latter. my opinion has nothing to do with habit, I swapped fx-82ES for fx-991EX without a second thought, but I doubt I will ever use CW apart from reinforcing my statement on EX being more handy
@Snowman_446 ай бұрын
Not bad. The only reasons i didn't choose that one was because a lot of universities didn't put it in their exam allowlist and because i didn't want to learn several new calculator functions right before exams. But i really like it. It seems to have made a lot of things like unit conversion easier. But I don't like the lack of colours on it, make it look old.
@flexu869910 ай бұрын
I like my CW but the only problem I have is the format key, I hate that I have to do 3 clicks per calculation if I want it in decimal form. Over the next how many years I have this calculator, that will add up to thousands and thousands of additional clicks.
@burjer892110 ай бұрын
u can change the default result form (fraction/decimal)
@HamzaAleem_Math3 ай бұрын
Yes I have same though before I too much used fx991cw but when I practice this calculator calculator this is too much better than ex . It is best calculator more features more intuitive design and handy calculator. I advised you to practice this calculator this is a best calculator. I have both but I like cw and used In my day to day life. And when I define matrix and off the calculator the data is not lost this is the amazing feature and also with some other modes I save my data in matrix when I set data in spreadsheet and give it screen off timer 60 min it means less chance of losing data. This is the reason I love this calculator.
@Goodmanperson5515 күн бұрын
It was already like that in the older models. The difference is that it's now a prime key instead of being in a second function layer. Your problem is concerned with the MathI/LineO setting
@elainematthews7846 Жыл бұрын
Overall, as I see it, the CW is a robust and highly capable calculator. Yes, the EX Classwiz js higher on the aesthetically pleasing scale, the CW’s function library is quite extensive and flexible. To see that it’s suitable for engineers and others in scientific disciplines. For it to be on the same caliber as TI’s 30X Pro Mathprint and 36X Pro demonstrates just how powerful this calculator is. For such an advanced calculator, its circular keyboard, nested menu structure, the somewhat busy keyboard nomenclature are worth the sacrifices. If it’s a replacement for the EX Classwiz, the EX will be sadly missed. Overall a 15 out of 10 for me.
@edan30510 ай бұрын
Hello, can you do me a favor and tell me if the Texas Instruments TI-30X Pro Mathprint or the Casio FX-991CW has better readable and brighter Display?
@rashidbinmansour83194 ай бұрын
When they will do four line screen, similar to Texas calculator Ti36. As engineer I usually repeat certain values for many times in my calculations. I like Texas so much for this feature but unfortunately I get used to the casio 991EX and FE & PE exam in my country don't allow for Texas calculators. (Saudi Arabia)
@konstrakph Жыл бұрын
The design is really bad. CW is just a waste of money.
@birnodin Жыл бұрын
Please test the speed of the fx-991CW vs fx-991EX, is the new calculator faster in sum, integrate, solve?
@simpleletternote Жыл бұрын
Newer CW is faster overall
@CalculatorCulture Жыл бұрын
It is 1.5 to 2 times faster:
@AdrianBoyko Жыл бұрын
Yep, those little “L” connectors look pretty annoying
@rikimiki12 Жыл бұрын
it's ugly and it's also redundant because it's shown on all items, a design mistake no real designer would make. and why there are no colors for symbols anymore? I do like the display fonts of the new model
@user-xk4wj9hd3l8 ай бұрын
The tables & conversion functions are what I'm interested in.
@sadmam-lc8fz10 ай бұрын
the 991ex was simpler and faster its honestly better in my opinion
@hermask8152 ай бұрын
As I recall the cw has taken away some of the mathematical features. I use my calculator seldom, pivot tables are what I do nearly every other day, and that’s mostly sums under the hood.😊
@anshumanmishraw Жыл бұрын
I have buyed FX-991CW bcz of it's complex.
@HamzaAleem_Math3 ай бұрын
Yes I have same though before I too much used fx991cw but when I practice this calculator calculator this is too much better than ex . It is best calculator more features more intuitive design and handy calculator. I advised you to practice this calculator this is a best calculator. I have both but I like cw and used In my day to day life. And when I define matrix and off the calculator the data is not lost this is the amazing feature and also with some other modes I save my data in matrix when I set data in spreadsheet and give it screen off timer 60 min it means less chance of losing data. This is the reason I love this calculator.
@anshumanmishraw3 ай бұрын
@@HamzaAleem_Math Indeed The FX-991CW calculator by Casio has earned widespread acclaim and a dedicated following among students, professionals, and educators alike. Renowned for its exceptional functionality and ease of use, the FX-991CW stands out as a top-tier scientific calculator in its class. One of the most lauded features of this model is its intuitive interface, which makes it accessible to users of all skill levels. The calculator’s large, high-resolution LCD display ensures that equations and solutions are displayed clearly, reducing the risk of errors and enhancing the user experience. The FX-991CW is celebrated for its extensive range of functions. It supports over 500 scientific functions, making it a versatile tool for tackling a broad spectrum of mathematical problems, from basic arithmetic to complex calculus. This wide array of capabilities makes it an invaluable resource for students in various fields of study, including engineering, physics, and mathematics. The calculator’s ability to handle matrix calculations, vector arithmetic, and complex numbers with ease is particularly beneficial for higher education students who require more advanced computational tools. Moreover, the FX-991CW is equipped with a natural textbook display, a feature that allows users to input and view mathematical expressions as they appear in textbooks. This function significantly simplifies the learning process and minimizes the time needed to familiarize oneself with the calculator’s operations. Users appreciate this feature because it facilitates a smoother transition between learning concepts in the classroom and applying them in problem-solving scenarios. Another aspect that users love about the FX-991CW is its solar-powered operation, supplemented by battery backup. This dual-power system ensures reliability and longevity, making it an environmentally friendly and cost-effective choice. Users do not need to worry about the calculator running out of power during crucial moments, such as exams or important calculations, which adds to its dependability. The build quality of the FX-991CW is another commendable feature. Casio has crafted this calculator with durability in mind, ensuring it can withstand the rigors of daily use. Its lightweight and compact design make it portable and convenient for carrying to classes, labs, or workplaces. Additionally, the well-spaced keys and ergonomic layout enhance user comfort, allowing for extended use without strain. Overall, the FX-991CW is not just a calculator; it is a reliable companion for anyone dealing with numbers regularly. Its blend of advanced features, user-friendly interface, and robust construction make it a standout choice in the market. Users consistently rate it highly, praising its ability to simplify complex calculations and improve efficiency. Whether you are a student grappling with challenging mathematical concepts, a professional requiring precise calculations, or an educator needing a reliable teaching aid, the FX-991CW is designed to meet and exceed expectations. This calculator’s ability to combine functionality, reliability, and ease of use into a single device has solidified its reputation as a beloved and essential tool in the world of mathematics and beyond.
@anshumanmishraw3 ай бұрын
Indeed The FX-991CW calculator by Casio has earned widespread acclaim and a dedicated following among students, professionals, and educators alike. Renowned for its exceptional functionality and ease of use, the FX-991CW stands out as a top-tier scientific calculator in its class. One of the most lauded features of this model is its intuitive interface, which makes it accessible to users of all skill levels. The calculator’s large, high-resolution LCD display ensures that equations and solutions are displayed clearly, reducing the risk of errors and enhancing the user experience. The FX-991CW is celebrated for its extensive range of functions. It supports over 500 scientific functions, making it a versatile tool for tackling a broad spectrum of mathematical problems, from basic arithmetic to complex calculus. This wide array of capabilities makes it an invaluable resource for students in various fields of study, including engineering, physics, and mathematics. The calculator’s ability to handle matrix calculations, vector arithmetic, and complex numbers with ease is particularly beneficial for higher education students who require more advanced computational tools. Moreover, the FX-991CW is equipped with a natural textbook display, a feature that allows users to input and view mathematical expressions as they appear in textbooks. This function significantly simplifies the learning process and minimizes the time needed to familiarize oneself with the calculator’s operations. Users appreciate this feature because it facilitates a smoother transition between learning concepts in the classroom and applying them in problem-solving scenarios. Another aspect that users love about the FX-991CW is its solar-powered operation, supplemented by battery backup. This dual-power system ensures reliability and longevity, making it an environmentally friendly and cost-effective choice. Users do not need to worry about the calculator running out of power during crucial moments, such as exams or important calculations, which adds to its dependability. The build quality of the FX-991CW is another commendable feature. Casio has crafted this calculator with durability in mind, ensuring it can withstand the rigors of daily use. Its lightweight and compact design make it portable and convenient for carrying to classes, labs, or workplaces. Additionally, the well-spaced keys and ergonomic layout enhance user comfort, allowing for extended use without strain. Overall, the FX-991CW is not just a calculator; it is a reliable companion for anyone dealing with numbers regularly. Its blend of advanced features, user-friendly interface, and robust construction make it a standout choice in the market. Users consistently rate it highly, praising its ability to simplify complex calculations and improve efficiency. Whether you are a student grappling with challenging mathematical concepts, a professional requiring precise calculations, or an educator needing a reliable teaching aid, the FX-991CW is designed to meet and exceed expectations. This calculator’s ability to combine functionality, reliability, and ease of use into a single device has solidified its reputation as a beloved and essential tool in the world of mathematics and beyond.
@slip0n0fall7 күн бұрын
Any suggestions for a factional scientific or "pretty print" calculator that you can scroll back and select calculation history to insert into the current calculation? My TI89 really spoiled me in this regard!
@CalculatorCulture5 күн бұрын
Yes you should look at the TI 30X Pro Mathprint. One of its strengths is the ability to copy and paste expressions from the calculation history. It won’t be as featureful as the Ti-89 graphing calculator of course, but it is relatively inexpensive.
@slip0n0fall4 күн бұрын
@@CalculatorCulture thank you!!!
@fouziasiddique65362 ай бұрын
Which one is better for statistics?
@laurenth718710 ай бұрын
What do you think about the x10 fonction ? There is no more EXP fonction, as a notation.
@saujanyapoudel89102 ай бұрын
The CW's scientific notation button treats powers of ten as separate numbers, giving incorrect results. For example, typing 2*10^7/8*10^9 should give 2.5*10^(-3) but instead gives 2.5*10^15.
@N-methyl1phenylpropan-2-amine11 ай бұрын
Honestly not a big fan of the menu system. How is the fx991ES PLUS instead?
@Crazytesseract2 ай бұрын
Do you work at IUPAC by any chance?
@traviswalker89332 ай бұрын
Its an older and slower model.
@CalculatorObsessed Жыл бұрын
For an influencing vintage calculator with round buttons how about the 1974 Casio pocket-mini with red LED display. Admittedly not a scientific calculator.
@AJ-et3vf6 ай бұрын
Great video. Thank you
@paulna552611 ай бұрын
I purchased one, and I'm very disappointed, it is ridiculous to have to go through a menu to change fraction to decimal on every input, it does not allow you to maintain a decimal format, that's ridiculous
@CalculatorCulture11 ай бұрын
You can also hit shift and EXE to switch between fraction and decimal format.
@pedroregalla33334 ай бұрын
On Settings it does allow you to set it to output in decimal format by default.
@MICHELSISMANOGLU7 ай бұрын
Hi everyone. My Casio fx-991 CW has just one TOOL, that's "undo". Do you know why? Regards from London
@sillycat_lover4 ай бұрын
Just bought the Calc and after reading the comments I am regreting my life choices .
@jthorpe4droid Жыл бұрын
I'm a bit of a calculator collector, was have tempted to buy the 991CW tonight even thou I have the 991CW, 8GT+ and a HP Prime, I have a question for the fx series, I have a Casio fx-7700GB and it works fine, but just eats batteries when not in use. Any tips, as I like this Cal and I've had it since new, battery contacts are clean. My TI-92 and TI-68 don't have an issues and are just as old.
@srirammeghana67469 ай бұрын
Where can I find exp in this calculator
@marcocretti5258 Жыл бұрын
hello, I'm undecided whether to take this calculator or the Sharp El w506 t. What do you suggest me?
@marcocretti5258 Жыл бұрын
Also called Sharp EL-W516TBSL .
@faisalahmed1937 Жыл бұрын
Casio fx 991CW has a serious problem: its approx. equal button (have to use shift button to get it) gives erroneous results. I am using it, its really unexpected and unaccepted. I strongly suggest not to buy it and suggest casio company to withdraw the device from market. If it is any developed country, we can claim compensation.
@CalculatorCulture Жыл бұрын
Interesting. Can you give an example?
@Ahlon1976 Жыл бұрын
where ist the percent key?
@chas2077 Жыл бұрын
You don't need one and no decent calculator should have one.
@CalculatorCulture Жыл бұрын
Yeah the percent key has gone. Personally I don't use the % key on calculators very much, since you it is usually easier to type percentages using a decimal point. eg. with .35 is three keystrokes, whereas 35 Shift Ans [%] is four keystrokes.
@numbshuvam8207 Жыл бұрын
Catalogue > Probability > %... 4 keystrokes 😂
@jefferson-silva Жыл бұрын
They made the UI simpler and the UX worse.
@Crazytesseract Жыл бұрын
The layout design is no good. Your videos are good, but I cannot like this calculator.
@dubrovink664 ай бұрын
Casio fan since 1978 but this is going in the wrong direction. In general, menus are less handy than direct acces buttons. It compares to touchscreens in cars (less safe). For calculators safety is not an issue, but unneccesary menus just make things more complicated than they are. The round buttons, which i find ugly, are just more marketing B.S. as, at the same time, Casio says the new buttons of the 991 ES+ 2nd edition have a bigger touch-area than the buttons of the previous 991 ES+....
@layan_77711 ай бұрын
How can I get the absolute value on casio fx991-cw?
@CalculatorCulture11 ай бұрын
The absolute value function is now buried in the Numeric Calc menu of the catalog.
@abdullah-00777Ай бұрын
But present time 991 ex original calculator has become very rare to find.
@Daniel-dj7fh9 ай бұрын
I like the all black design I just don't know who's gonna benefit from the coin toss and dice roll function..
@strictlyyoutube10 ай бұрын
Where can I buy the EX?
@CalculatorCulture10 ай бұрын
The 991-EX has been discontinued. You can still buy them new off merchants on eBay but the price has gone up a lot.
@ariabahrami175211 ай бұрын
The calculator have function like sec, cosec or cot?
@HamzaAleem_Math3 ай бұрын
No
@Crazytesseract2 ай бұрын
@@HamzaAleem_Math It does. Use sin, cos and tan keys to get these functions. They are inverses of these three functions.
@HamzaAleem_Math2 ай бұрын
@@Crazytesseract thank you
@youssefmahmoud76056 ай бұрын
New layout feels more confusing and slower than the older layout not a fan.
@CalculatorCulture5 ай бұрын
Yeah that’s a common complaint.
@jamesheseltine8283 Жыл бұрын
Hi, I am new to Maths and studying my school exams as a mature student. Do you guys recomend I get the CW or EX?
@CalculatorCulture Жыл бұрын
I think you would be happy with either:
@jamesheseltine8283 Жыл бұрын
@@CalculatorCulture I have heard so many negatives about the CW I will have to give it a pass.
@nicalennieee Жыл бұрын
@@jamesheseltine8283I own the pink ver and its very usable but still depending on your level or the functions you need.
@ShebanFPV7 ай бұрын
EX for sure
@Kunk.sk82 ай бұрын
how do i turn it off yall
@CalculatorCulture2 ай бұрын
I believe it will only turn off when the solar panel is covered.
@newazabir8492 Жыл бұрын
please give some tutorial & hacks vedio for casio 991 cw
@CalculatorCulture Жыл бұрын
@TheCalculatorGuide does a good job on those types of videos, not sure he's got to the 991-CW yet though.
@newazabir8492 Жыл бұрын
@@CalculatorCulture thank you 💖
@ciao27776 ай бұрын
can it run doom?
@CalculatorCulture6 ай бұрын
No you'll need a fx-cg50 for that!
@HSong-qr7dn3 ай бұрын
The "upgraded" product looks like art/design people applying "idiot-oriented" design on scientific calculators. I think designers do not even know how to use engineering/scientific calculators, and they assume everyone is unable to use those calculator as themselves. Such a design may be suitable for financial or daily calculators, but high-end scientific calculators should not hide everything in the menu and should not forget to consider typing efficiency.
@user-mk8yn4xl8v11 ай бұрын
Helo sir is it good or not I took fx991 cw
@CalculatorCulture11 ай бұрын
Yes it still a great calculator. Some prefer the previous model though.
@saherakhatun1458 Жыл бұрын
I chose complex 991ex for speed
@CalculatorCulture Жыл бұрын
Makes sense
@shahzadiqbal91453 ай бұрын
DO YOU KNOW : The CASIO fx-991 has 540 features !
@ohitsustu18358 ай бұрын
The new cost saving cover is naff.
@faheemali1650 Жыл бұрын
Can someone tell me how to turn this darn thing off?
@CalculatorCulture Жыл бұрын
⬆ AC
@faheemali1650 Жыл бұрын
@@CalculatorCulture thanks.
@Terzaghi12 Жыл бұрын
I don't like the new design, it kinda looks like the calculator app on Android phones
@michaelroll1010 ай бұрын
They managed to ruin the calculator in almost every useful aspect. FORMAT key opens a menu?? no CALC?? no STO?? no selecting options with keyboard shortcuts??
@alexuny Жыл бұрын
I see this re-design like a low cost production desing (but selling at same EX991SPII price, of course). And it has a poorest keyboard and functions design too, in my opinion. I don't like this CASIO Classwiz movement and design. I'm most fine with the EX... Or an advanced Classwiz MS has better and honest design than this CW in my opinion. An EX-991SPII with EX-82SPII/GTX basic black pattern colors, with more text and lines on LCD configs (and other typpgrafy style like CW or classics LCD??), and CASIO will can take me 25-35 € again 😢😂.
@astian80284 ай бұрын
Small screen
@Manish_Kumar_Singh3 ай бұрын
this is terrible, and casio knew that its terrible. their sales on CW was not improving while EX was in the market, like it did for EX when ES was in the market, clearly an indication of an inferior product. *So they discontinued EX and relaunched ES with new CW buttons.* i had to throw away my CW and buy EX for some mental sanity.
@Kel-Sang7 ай бұрын
Missing ANS is suck a nerf of this calculator, and the ENG button !! To convert to decimal to fractions is a hassle now. And to solve Quadratic equations now we have to go 5-6 exta keys. Such a huge disappointment, i switched back to my 5 yr EX right after a week of using CW. *Boohoooooo casia CW creator 👎👎👎*
@prakashhirawat5825Ай бұрын
i have classwiz cw calculator most useless not worth so difficult to use and not useful in numerical analysis so i hate it if anyone want i will sell it
@Manish_Kumar_Singh3 ай бұрын
anyone here who can ship me their EX, used or brand-new from your country? its not available in my country and I will pay a premium to you
@CalculatorCulture3 ай бұрын
There are a lot for sale on eBay.
@nungky_giantarawanie3 ай бұрын
Masih ada banyak di Indonesia
@AlexFlores-es9jc Жыл бұрын
Con la 82 ms mas que suficiente
@dfloper11 ай бұрын
round keys are a failure. Looks really ugly
@pyuc Жыл бұрын
Hi, which calculator for about 30 € can you recommend me? I need the calculator for computer science.
@CalculatorCulture Жыл бұрын
I'd recommend the previous Casio fx-991EX since it is a great value calculator, and it has direct keys for base conversion (bin, hex, oct, dec) which you use a lot in computer science.
@arthurlam5832 Жыл бұрын
I would recommend Casio JP900 model It is a Japanese model 991EX series, but it has an English interface and a lot more functions than 991EX
@Crazytesseract11 ай бұрын
@@arthurlam5832 No real advantage. You would pay a lot to import one from Japan. It has GCD, LCM, Intg, recurring decimals, Atomic weights and lots of constants. That's all.