@@匿名的-1 seems likely that it would be a lot easier to sell a fake $100 calculator than a fake $5000 purse but I can't say for sure. I too am finding out about the calculator black market for the first time
@@匿名的-1people in third world countries can’t afford 100$ calculators that easily, I know this, I’m from South America, and while the comparison here is with a bad calculator, we had some really good fakes that could do all the work and were only 20$, sure the original was still the best to have, but not everyone could buy them
dear casio, would you mind adjusting the camera while performing the calculations? So we can able to see it clearly and check if our calculator is original or fake one?
A tip is take a real calculator and compare the questioning calculate with it, my trick is x^2 +100x +1050, it should take 3 to5 secs, if more or answer is not 11….. or 88…… then it’s fake
Actually the easiest way for me to know if you have the original Casio Calculator is if it has the Contrast adjustment setting in the menu. Never seen a single fake casio calculator has this, loved this feature! 😉
Is this a feature of all Casio models, or just the fancier ones with more features? I have an fx-85MS from my school days-one of Casio's cheaper models, at least 10 years old. It can't manipulate algebraic expressions/equations like the "solve for x" problem shown in the video. It doesn't have any contrast setting that I know of, and I bought it from a reputable store, not some random ebay listing. (Australian school exams are strict about what kinds of calculator are allowed: no symbolic algebra, calculus, graphing, etc)
My first scientific calculator was a Casio, an FX81 in 1981. I was 15 years old. I also had a Casio digital watch. Casio was my entry into consumer electronics!
I would have thought that a fake calculator may not have all the functions or is made with cheaper materials. But the fact that it cant even give you the right answers is very strange.
The solving function has a timeout on it. If the fake pirates the ROM but uses a cheaper CPU, it won't be able to solve in time what the real one can. Different floating point modes can also give different results, so code designed for one may fail if a subbed part defaults to another.
@@shadesoftime did you read the comment above? They literally said the imitation one doesn't have hardware strong enough to process the ROM and calculation, thus unable to give you answer for complex calculation Obviously for normal people, there's no much different. But It's a huge disadvantage if you buy calculator for math work or something, which is the primary costumer for this thing
con 570 VN plus bản 2nd edition thì lại có :))) bấm Mode 0 sẽ hiện ID và mã QR. 580 VN X thì cũng có serial number nhưng làm nhiều bước hơn. Tổ hợp On-Shift-7 -> hiện "DIAGNOSTICS" nhấn 9 -> nhấn Shift liên tục cho đến khi màn hình bào "Press AC" -> nhấn "Mode" -> nhấn AC -> màn hình hiện số seri (nhưng không có QR)
@@kamikamieu Asian tests are hard bruv Asians are not that smart, american and european tests are just very easy, you don't need to study for days before the test just to complete it.
Your doctor 99% has a cheap one, his answers will be the wrong ones. The lesson from this us: always buy the cheap calculator so your answer will match your doctor's and actually get a good grade
I doubt it solves in correctly it probably has to do with which answer it chooses to give you, if you do shift solve -1000000 then = or shift solve 100000 equal it will give you different solutions depending on what you're solving
For es plus calculators, You can press shift mode, then press 0, and then scan the qr code it gives to see if it's authentic or not, well that's what I did with mine anyway
i mean, another easier way for me is to press "1" , "3", "7", "9" and "AC" at the same time to see if the "CASIO" show anyway, thanks youtube algorthium, you did well again.
For all the people here saying "oh so im not bad at math its my calculator" The only part of the fake calculator that doesn't work is the equation solver, and if you're not bad at math you'll just solve the equations yourself in less time
I have a fake classwiz, and the funny thing about it is that if you put in too many numbers, you can change the firmware to a different mode. It seems that the same exact chip is used in multiple replicas, so after you change the mode the menu appearance and list of features changes, and the lcd behaves weirdly (it's inverted and mirrored). This can be reverted by taking the battery out and putting it back in
Before buying a house ill ask which calculator did the engineer use, cuz i dont want my new home to fall apart due to de fact that fake calculators exists which dont give correct results
Ignore if you are joking, they use software(Autocad and/or MATLAB) on their PC. For all we know, they might not even touch any separate calculator and only use the software.
@@Orincaby dear casio please make it so that its easier to accidentally turn off the calculator when trying to restart it by putting the off and on buttons together
In Vietnam, our calculators do have a anti-fake sticker in front of the calculator, and also a digital warranty activation sticker on the back But the anti-fake stickers are like easy to imitate
@@UltraNyan i cant take your hint. instead, tell me how calculator exams reflects a person day-to-day work life basis that's probably already being assisted by a calculator algorithm that they didnt even know exist. and state the difference of why you think web-calculators falls as "cheating" under exam jurisdiction
Bro, this reminds me of a physics exam where my calculator gave me like 4 different results. Eventually, I asked my teacher to lend me his, and I got the question right. The worst part is I'm pretty sure mine's not a fake
I mean I usually expect my calculators to be genuine since I buy them directly from Casio. Either the calculator is old enough to drive or it's the latest model.
1:27 Hi, just wanna ask, I tried this calculation on my calculator (fx-570MS 2nd edition), and I got the answer X = 3.625, so is my calculator fake or original?
they are the same same for Classwizz FX 991-MS, just use the qr code and it should take you to the correct page. >Go to "Menu" >Press: [SHIFT] then [OPTN] scan the qr code that is on the screen
Remember that on a college test or actual real-life scenarios, this "simple operation" is just one of the many operations you would have to do to get the answer for just one math problem... Of course, you could do each and every operation manually, but due to the sheer number of them it would take at least 2-3 hours for ONE math problem while a test might have several problems (sometimes 10+); and tests have a time limit (around 2-3 hours, so if you did all the operations by hand, solving only one problem would take you the entire test time 😖). The purpose of a calculator on a test is to quickly crunch numbers so you can focus on actually solving the problem... and of course using a phone is forbidden because you could actually share the answers wirelessly with your fellow classmates, on the other hand, a calculator has no connectivity, therefore no way to share answers without the teacher noticing. Another idea (which is what my college did) was having a jammer (behind the classroom walls) on each classroom which gets activated automatically on class hours placed as meetings on MS Teams, and can only be deactivated if approved by the direction board or on emergencies (e.g. an earthquake)
Trying to solve "X+1=X-1" fails on the genuine calculators. Which is good. That's the correct result. However, a lot of the bootlegs give weird results due to the nature of floating point numbers and computers.
Mine was really I scanned the qr code and it led me to a website and it showed me a game about math that you attack monster by answering the right questions so uhh yeah! Mine IS real
depends on the game, really Sometimes good fakes have this website with a game on it that installs a virus It's easily preventable by wrapping your calculator with tin foil
Good. But, try looking for the 2nd edition of it or, 991ex. But, ex is not allowed in all examinations. Since 991ex is a programmable calculator. But, on the other hand bot 991es plus and 991es plus 2nd edition is "NON-PROGRAMMABLE" calculators...
![Tips & Tricks on Casio Scientific Calculator fx-991ES Plus 2nd Edition [2024]](http://i.ytimg.com/vi/zloXkMuSL6s/mqdefault.jpg)
I didn't know fake calculators were a thing, but I guess I know now.
i guess next big thing will be fake numbers. these mathematicians are always so advanced these days
If you don't know now you know
@@Vexcenot Yea, but it is still beyond my understanding. I can get why they copy designer handbags that are worth like 5K$, but calculators?!?
@@匿名的-1 seems likely that it would be a lot easier to sell a fake $100 calculator than a fake $5000 purse but I can't say for sure. I too am finding out about the calculator black market for the first time
@@匿名的-1people in third world countries can’t afford 100$ calculators that easily, I know this, I’m from South America, and while the comparison here is with a bad calculator, we had some really good fakes that could do all the work and were only 20$, sure the original was still the best to have, but not everyone could buy them
dear casio, would you mind adjusting the camera while performing the calculations? So we can able to see it clearly and check if our calculator is original or fake one?
Press ALPHA than " ) " for x
Press ALPHA than " CALC " for =
After typing the equation press " shift " than CALC and " = " at the bottom.
@@shannonpereiira Thanks!
It's called editing
A tip is take a real calculator and compare the questioning calculate with it, my trick is x^2 +100x +1050, it should take 3 to5 secs, if more or answer is not 11….. or 88…… then it’s fake
@@shannonpereiira then*
Regular calculator:
Geogebra:I'm about to end this man's whole career
what if geogebra isnt allowed in school
@@drenzinerepaint it
Desmos to geogebra: you aren't even turing complete, and you're slow.
Julia to desmos: you can't even store multidimensional list
geogebra cringe
@@drenzine calculators aren't allowed in my school anyway, especially on exams. all exams.
Actually the easiest way for me to know if you have the original Casio Calculator is if it has the Contrast adjustment setting in the menu. Never seen a single fake casio calculator has this, loved this feature! 😉
so true
Not on mine
@@AmCanTech so it's a fake
Is this a feature of all Casio models, or just the fancier ones with more features?
I have an fx-85MS from my school days-one of Casio's cheaper models, at least 10 years old. It can't manipulate algebraic expressions/equations like the "solve for x" problem shown in the video. It doesn't have any contrast setting that I know of, and I bought it from a reputable store, not some random ebay listing.
(Australian school exams are strict about what kinds of calculator are allowed: no symbolic algebra, calculus, graphing, etc)
@@wereoctopus Try pressing “Mode” 4 times then number 2 (Cont), use the left/right arrow keys to make it lighter or darker
now i have a new fear unlocked
we all
Calc saying 4/100000x100000=4.00000036
Surprised how a device being able to work only on discrete values can perform so well with continuous values, amazing.
parent : "why you got F in maths"
you : show this video
My first scientific calculator was a Casio, an FX81 in 1981. I was 15 years old. I also had a Casio digital watch. Casio was my entry into consumer electronics!
I would have thought that a fake calculator may not have all the functions or is made with cheaper materials. But the fact that it cant even give you the right answers is very strange.
The solving function has a timeout on it. If the fake pirates the ROM but uses a cheaper CPU, it won't be able to solve in time what the real one can. Different floating point modes can also give different results, so code designed for one may fail if a subbed part defaults to another.
@@nope.0. only slow ans?
Hope so cause i got scammed for 991 ex
@@tarotfoolrexwhere did you buy it from I’m looking for the same one
Honestly feels like fearmongering by casio, there's literally no disadvantage in most imitations except that they don't give casio any money
@@shadesoftime did you read the comment above? They literally said the imitation one doesn't have hardware strong enough to process the ROM and calculation, thus unable to give you answer for complex calculation
Obviously for normal people, there's no much different.
But It's a huge disadvantage if you buy calculator for math work or something, which is the primary costumer for this thing
this is a video i stumbled across at 1:30 am and i m now thankfull for yt algorithm showing me this
imagine you failed all the tests before, now you found your casio is fake
the qr code feature is awesome and would help me soo much, too bad my vietnamese version don't have that (fx-580VN X)
con 570 VN plus bản 2nd edition thì lại có :))) bấm Mode 0 sẽ hiện ID và mã QR.
580 VN X thì cũng có serial number nhưng làm nhiều bước hơn. Tổ hợp On-Shift-7 -> hiện "DIAGNOSTICS" nhấn 9 -> nhấn Shift liên tục cho đến khi màn hình bào "Press AC" -> nhấn "Mode" -> nhấn AC -> màn hình hiện số seri (nhưng không có QR)
@@angkhoavo8004 wow z dùng số seri mình làm gì đc
@@tumo07 mình nghĩ chắc là để bảo hành và kiểm tra hàng chính hãng
@@angkhoavo8004 thấy 10 máy t cầm lên cái mã seri giống nhau
@@angkhoavo8004 sua
Fake or real, I’ll still fail the test regardless anyway. Might as well go for the cheapest option.
relateable
Congratulations, you broke the stereotype of asians being smart.
@@kamikamieu they are smart, but the exam is difficult
Protip: Try learning.
@@kamikamieu Asian tests are hard bruv
Asians are not that smart, american and european tests are just very easy, you don't need to study for days before the test just to complete it.
So that's why I keep failing my math test.
You know Casio is big company when walmart is selling fake casio
Your doctor 99% has a cheap one, his answers will be the wrong ones. The lesson from this us: always buy the cheap calculator so your answer will match your doctor's and actually get a good grade
Did you mean "teacher"?
@@UnusualPete professor *
@@UnusualPete No, they meant physician.
Surgeon
@@donotreadthis The anesthesiologist calculates the dose of the drug
I remember when I thought caiso and geico were the same company
Good old casio. Last used 20 years ago but still love it
I doubt it solves in correctly it probably has to do with which answer it chooses to give you, if you do shift solve -1000000 then = or shift solve 100000 equal it will give you different solutions depending on what you're solving
well that means there are two solutions to your equations. it's actually a neat trick for you to get the two roots of quadratic in mode 1
How can we check fx-991ES calculator? Or any other ES/ES PLUS calculators?
For es plus calculators, You can press shift mode, then press 0, and then scan the qr code it gives to see if it's authentic or not, well that's what I did with mine anyway
Me who'll never used this, watching this at 2 am:
Interesting...
Bro same 😂
Fake calculator manufacturers : "WRITE THAT DOWN!"
i mean, another easier way for me is to press "1" , "3", "7", "9" and "AC" at the same time to see if the "CASIO" show
anyway, thanks youtube algorthium, you did well again.
A lot of fake ones do this aswell
Ima try this
How bro how to do it
For all the people here saying "oh so im not bad at math its my calculator"
The only part of the fake calculator that doesn't work is the equation solver, and if you're not bad at math you'll just solve the equations yourself in less time
i used a copy (casid) to solve and it gets correct answers after rewriting equation 2 or 3 times
I have a fake classwiz, and the funny thing about it is that if you put in too many numbers, you can change the firmware to a different mode. It seems that the same exact chip is used in multiple replicas, so after you change the mode the menu appearance and list of features changes, and the lcd behaves weirdly (it's inverted and mirrored). This can be reverted by taking the battery out and putting it back in
Literally 99.90% of the calculators I've ever owned are fake Casios 🙃 so I'm glad I have two original Casios (83GT X & 85GT CW) that still fully work!
1:00 how his finger is so long?
Me with my cheap calculator knowing that the answer is syntax error
i wanted to see if my ridiculously cheap scientific calculator can do (21+X)÷X=8 but my calculator can't do = before calculating
Before buying a house ill ask which calculator did the engineer use, cuz i dont want my new home to fall apart due to de fact that fake calculators exists which dont give correct results
Ignore if you are joking, they use software(Autocad and/or MATLAB) on their PC.
For all we know, they might not even touch any separate calculator and only use the software.
That's one weird recommendation... TH-cam algorithm rocks 🤣🤣
youtube decides that i need to know this eventho i'm in art school
go get thems golden ratios right
TH-cam is saying to get a constructive degree.
That is clearly a CASlO (lowercase L not capital i), different brand definitely.
The formula solving method is not valid on the fx-991EX.
exactly, if we press "=" it's not working, ig it's just not available on this version?
Dear Casio please make a dedicated pi button instead of using shift all the time
dear casio please seperate the power off and on button for no reason
@@Orincaby dear casio please make it so that its easier to accidentally turn off the calculator when trying to restart it by putting the off and on buttons together
@@Orincabythey should add a power on/off button on left/right side on the calculator
The same way it is on a phone
You know what i mean
So I wasn't bad in school. I just had a fake calculator
I like how the display is more visible on the fake calculators.. do the use an higher quality display?
The display can usually be adjusted
Different light settings of camera. See color of table is also darker.
our country's news tell us this way too! the fake one cant calculate complex problem and can affect exam result
In Vietnam, our calculators do have a anti-fake sticker in front of the calculator, and also a digital warranty activation sticker on the back
But the anti-fake stickers are like easy to imitate
Just got my fx991EX CW but when I scanned the QR it led to the website and said "An invalid parameter is specified", what does it mean?
Upon scanning the qr on the box, It direct to the same result on your fake side.
> Dont risk your future, choose the right calculator.
Bit strange assumption. Even if I have crappy calculator, how it effects my future?
You collapse a bridge.
college i assume. i still have no idea why dont they just allow web calculators
@@helper_bot hint - exams
@@UltraNyan i cant take your hint. instead, tell me how calculator exams reflects a person day-to-day work life basis that's probably already being assisted by a calculator algorithm that they didnt even know exist. and state the difference of why you think web-calculators falls as "cheating" under exam jurisdiction
Bro, this reminds me of a physics exam where my calculator gave me like 4 different results. Eventually, I asked my teacher to lend me his, and I got the question right. The worst part is I'm pretty sure mine's not a fake
I mean I usually expect my calculators to be genuine since I buy them directly from Casio. Either the calculator is old enough to drive or it's the latest model.
Hi my casio fx-991ex calculator I bought from online doesn't have qr code but it answers all the sample calculations. I wonder if this is fake or not
1:27
Hi, just wanna ask, I tried this calculation on my calculator (fx-570MS 2nd edition), and I got the answer X = 3.625, so is my calculator fake or original?
Fake
1:31 Fake ones may use JavaScript
why are there 2 types one will have a small screen on top but the second one doesn't
I almost finished the 4th year engineering not noticing that i have the fake one since high school lol
How long is that finger?
Randomly popped up in my reccomendations
No wonder I failed my math test my calculator was fake lol😂
i not know a real casio had half of these features
Is this video related to the FX-911 ex model?
they are the same same for Classwizz FX 991-MS, just use the qr code and it should take you to the correct page.
>Go to "Menu"
>Press: [SHIFT] then [OPTN]
scan the qr code that is on the screen
@@Nobody-ho8oq hey my QR code and everything else works but mine is made in China, is it real?
@@MrAllahP almost everything is made in china so you're safe
@@MrAllahP a fake with better quality, like mine. Actual casio calculators are from Thailand & Japan.
@@sukuna7263mine's from Thailand
Unfortunately legitimates in my country is too expensive. I cannot convince or save enough for me to buy one. Really hope some company can save us
What country are you from if I may ask?
@@JasonBoon02 definitely third world
@lolithighs what country
My parents doesn't allow me to use calculator. what should I do then? :(
Count manually I guess
use feet for calculations more than 10
I wonder if a calculator is really necessary for such a simple question
Remember that on a college test or actual real-life scenarios, this "simple operation" is just one of the many operations you would have to do to get the answer for just one math problem... Of course, you could do each and every operation manually, but due to the sheer number of them it would take at least 2-3 hours for ONE math problem while a test might have several problems (sometimes 10+); and tests have a time limit (around 2-3 hours, so if you did all the operations by hand, solving only one problem would take you the entire test time 😖). The purpose of a calculator on a test is to quickly crunch numbers so you can focus on actually solving the problem... and of course using a phone is forbidden because you could actually share the answers wirelessly with your fellow classmates, on the other hand, a calculator has no connectivity, therefore no way to share answers without the teacher noticing. Another idea (which is what my college did) was having a jammer (behind the classroom walls) on each classroom which gets activated automatically on class hours placed as meetings on MS Teams, and can only be deactivated if approved by the direction board or on emergencies (e.g. an earthquake)
1:31 i bet fake calculator uses JavaScript
It's low level i Don't think you can run javascript. Their logic is at fault for the most part
The first thing where they said the box has to have a warranty on it is incorrect
What should the box looks like?
@@kawaii7054 depend on the country where you by it each country usually have a different detail on warranty card
For example,In North America my calculator came in a blister pack. The warranty is on a sheet of paper.
Is fx 991 EX CLASSWIZ calculator used in anna university exam????
Yes
Maybe
No
We don’t use fractions in division
in my country fake calculators have name "CADIO" on their box)
My casio calculator has two "i" in it's name. Is it fake? The model is fx 100 ms
Do the fake ones function the same as the real ones ?
no
How to the orginal one from the fake in fx 991es plus the blue old edition, please ?
Sorry, i forget a word. How to differentiate
Is it bad that even the original ones don't have these options?? In my city the fake ones doesn't have that sticker and options..
In my calculator X =0 and is this correct answer ?
Trying to solve "X+1=X-1" fails on the genuine calculators.
Which is good. That's the correct result.
However, a lot of the bootlegs give weird results due to the nature of floating point numbers and computers.
well , my calculator is fx-580ES plus , but when i use 1+1 , it's answer is...3
0:59 , long finger
I'm getting the fake ones and giving it to my friends
you absolute devil, how could you dare to even do that 😂
I have Casio fx-82ms from 6 years ago, does it work?
Do you still making casio DC-8500RS?
my casio calc from 1989 is not showing qr code :(
lol, put that in a musseum
Thailand Casio fake or original ? Because the answer 💯 correct! But qr cannot scan .
Bro I got Thailand too qr did authentication for original yet can't solve them problems, goofy af
Chose the right calculator, choose Texas Instruments
What if the guys who make these fake calculators watch these videos and change these problems
Wait Even Calculator Had A Bootleg One? why?
Can you tell what the actual price of casio
Mine was really I scanned the qr code and it led me to a website and it showed me a game about math that you attack monster by answering the right questions so uhh yeah! Mine IS real
Sorry to break it to you, your money is gone to blackmarket
Your calculator is more genuine than Casio calculator.
depends on the game, really
Sometimes good fakes have this website with a game on it that installs a virus
It's easily preventable by wrapping your calculator with tin foil
Dear Casio, how to punish someone properly after he removes the security sticker?
Casio be like: 3:5 = 3/5
It is
Ratio means division but instead of real numbers it's ratios
Because it's true.
Press S↔D button...
how about casio fx-350MS 2nd edition?
Same there is no optn button😅
It IS the second edditon-
@@abdulrehmanawan9507 some features are restricted in lower end models
There is no fx 350MS 2nd edition, it's definitely a fake
Is Casio fx991Es is good or not?
not
Good. But, try looking for the 2nd edition of it or, 991ex. But, ex is not allowed in all examinations. Since 991ex is a programmable calculator. But, on the other hand bot 991es plus and 991es plus 2nd edition is "NON-PROGRAMMABLE" calculators...
No
Can't solve 9/X=9
Nope
What about casio fc -200 v ?
How can i know if it is original or fake!? Can you help me please😢
Cheap is equal to fake
bought mine at popular, i was shocked when i saw it being sold for half the price on shopee, turns out it's probably fake
The cheaper one all the way!! students barely have any money as it is, dont waste your money buying a original for no reason
Why is my 911 ex authentication is original but math error for those problems?
Maybe you dont set a value of x when you shift solve
Hey TH-cam recommendation I'm Asian.
But let's watch this.
Simple check: press shift AC and see if casio appears upon shutdown. 😅
Mine appears does that mean its the real one?
is it original then?
Bro it’s only 20 dollars how is there fakes
$2 in parts, lucrative profit margins for something that carries essentially zero risk and zero innovation required.
$20 in other countries is Alot tho. Those calculators should be cheaper tbh.
What about 3:6(8-2) ?
:D
Why you actually need a cientific calculator?
Переснимите видео, ничего ведь не видно на экранчиках этих!
If there is no difference, why should I pay more?
Thanks casia for carrying student like us
Imagine doing an important exam with a fake one and it calculating all the wrong answers!
Note: The fake ones hasn't got arrangement
How do i type = sign in my calculator :")
Alpha -> CALC
Now i know why i failed my exam!
1:39 Casio is right I will choose the right calculator and not the left one
i cant believe casio would advertise cheap knockoffs of their calculators! a truly horrible decision by casio