32 Cool Features of Casio fx-991EX Classwiz Scientific Calculator

[@januszsowa805]

I've got this calculator couple months ago and I have to say that it is the best one I ever used - I'm using it mostly for statistic and it comes very handy. Very good video Sujoy - picked up couple tricks

[@sujoy70]

+Janusz Sowa Watch my another vid- kzbin.info/www/bejne/p6fUpaCQlK1oZsk Thanks! Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@farhannoor3935]

can you access hyperbolic functions on this calculator as in the previous ones?

[@Crazytesseract]

@@farhannoor3935 Yes. Press [OPTN] and then 1.

[@bukkaharshvardhan]

The multistatement operator is a huge time saver in numerical methods problems... Especially finding roots using regula-falsi or newton-raphson method.

[@TheClinchMagazine]

This dude's channel helped me getting through toughest semesters during my college year without any problem. Thanks man.

[@djokotriono7787]

Thanks, Sujoy. I've busted my beloved 9750 and now my daughter is entering calculator age. Definitely getting this one

[@maheshkumars2593]

Hello Sujoy,Iam using Casio fx-991EX Classwiz Scientific Calculator and performing Binomial Distribution calculation by choosing "Binomial PD" and fed the data as mentioned below:-X =4N = 7P = 0.9Iam getting the result as 2.296 rather than .02296Kindly assist on how to get the probability between 0-1 range rather than getting more than 1.

[@bythetimeyoufinishedreadin9083]

Hey you dont have to do "alpha x", there's already an x button on the top right

[@u_u9286]

LEGEND I didn’t now that

[@noahbesage6765]

@@u_u9286 ,,

[@turakhossain]

WOW 🤯

[@bukkaharshvardhan]

Thank you so very much for these videos. You're a life saver Sujoy!

[@abdulwajid6677]

I bought this calculator without knowing anything about it,at starting i didn't know why my teacher recommend me this and now I know its everything..... Just wow...

[@Culer8605]

When you cmnted what are you doing

[@theodoresweger4948]

Very Good, Thanks

[@sujoy70]

Thanks! Kindly subscribe.

[@shashank_d_a]

Very useful tricks and tips. Thank you ☺️

[@NishilS]

This video is very helpful. Appreciate it! Liked and Subscribed

[@bvivan1690]

11:00 Worth knowing, ty!

[@Bastimon]

Great video, that little calculator has some really useful features

[@sujoy70]

+Bastimon Thanks! Check my other vid- 7 Exclusive Cool Features Casio fx-991EX Classwiz kzbin.info/www/bejne/p6fUpaCQlK1oZsk Casio fx-991EX Unboxing and Quick Review- kzbin.info/www/bejne/d5_PgYODhrySopI

[@allamaprabhuani]

Hey Sujoy, I am looking for a calculator that can store and compute 12 matrices of dim 4x4.. Which calculator should I go for?

[@EricBrunoTV]

This is a good video. I was looking for how to calculate this. (x^2-3x)^3 so I can earn time during exam. Thank you

[@Machettent]

very helpful & easy to understand. However I would have loved to show us how to calculate the greatest common divisor& LCM. Much obliged

[@sujoy70]

Thanks! Hope you subscribed and liked the video :-) Please check my 3 GCD/LCM vids here- How To Find LCM and GCF/GCD on Any Normal 8-Digit Basic Desktop Calculator kzbin.info/www/bejne/Z37Ck4huocyNj68 GCF/GCD/HCF of 3 Numbers Casio fx-991ES kzbin.info/www/bejne/bYXHp2yHr6iYnZo GCD/GCF/HCF of 3 Numbers Casio fx-82MS kzbin.info/www/bejne/nJ-lfmqapsissNE

[@Machettent]

but how in the fx-991 EX. Idon't see any button for gcd/lcm

[@Crazytesseract]

@@Machettent for that you need to get the fx-991DE X, the German version.

[@keithrobles8607]

hi sujoy, do you have a tutorial about finding the height and length of a trapezoid using calculator?using STAT then A+Bx

[@thstahmid]

Almost same features are present in casio fx 991 es plus 🙄😛😛

[@Machettent]

hi sir, do you have video regarding casio cp 400?

[@sujoy70]

No Sir!

[@arcticblade4243]

get a casio fx 991ex its the best!!!!!!!!!

[@TheRealBleach]

@@arcticblade4243 The casio cp400 is the best

[@narayanamandada9054]

What is updated version of the calculator please reply it was most important to me please

[@ratansarker8233]

Is it allowed to be taken in exams?

[@pinehteshapple3666]

Thanks for uploading this kinda helping vedio this helped me a lot in my o levels exams

[@rafaellopes2053]

14:03 nice

[@aariziqubal3660]

Thanks for this video, it is very helpful.

[@abyazkarim6755]

Excellent video

[@kcravikumar5825]

Is there any difference in them...bcuz I don't have latest version

[@evolve2survive324]

for a engineering student, should i buy a ti 36x pro or casio fx-991ex ?

[@sujoy70]

evolve 2survive Features wise fx-991EX without doubt.

[@evolve2survive324]

@@sujoy70 what about ease of use and functionality ?

[@moganash6992]

great job man

[@mohdtazammul4699]

I want to calculate the differentiation in equation form...which calculator does it allow?

[@MahfuzShaon]

Good video . Its an awesome calculator . Got it a week ago

[@sujoy70]

+Mahfuz Shaon Thanks! Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-) Watch another 991EX vid here- kzbin.info/www/bejne/p6fUpaCQlK1oZsk

[@khaosthesniper8321]

3:17 isnt there another x sign under ON

[@LaynusST]

Do you have a fx 82ex? There is not a single video about it and i bought this calculator beacuse there werent any 991ex or 570ex! If you do, ill thank you for life!

[@Crazytesseract]

Arey, it has less features. But operation is almost same like. Means na, you do same type button pressing. But all function you not getting. Understood na? No, then ok.

[@arnendo9304]

Hello, is on button by default shorter ??

[@emilyyates4177]

Does this calculator still have the ability to input recurring decimals?

[@u_u9286]

Yes just spam the decibel

[@Crazytesseract]

No. You need fx-991DE X.

[@micahmorbs]

Please teach us how to interpolate using fx-991 EX.

[@ianmark321]

the same as 991es plus

[@k9N7p]

Hello brother ?? what's the price in india ?? One you bought for(FX991EX) Here in Nepal ? Can we get it ?? The price of ES991Plus differed heavily in market that from online sources ??

[@sujoy70]

Around 1150. No I've not been to Nepal. Prices you can compare yourself.

[@k9N7p]

+Sujoy Krishna Das and what about forthcoming calculators ??

[@MAfzal-bo4ng]

where to find option button in vpam fx-991es compare to classwiz fx-991ex? kindly help me

[@ceeday8141]

How do you get simplest square roots

[@Navniit_Patel]

- Thank Yuh Sir For The Fantabulous Video

[@sergiomartinezmurillo4938]

can you show me how to do de interpolation, please

[@ianmark321]

same as 991es plus

[@prathmesh3128]

Factorials ka symbols kha par haii

[@maheshwarbanuk4389]

Very useful !!

[@sankalplohakare9661]

What is the use of white calculator on the right?

[@abhilashasharma4560]

while we are doing I.F value e power integration we have to do right for that there wil be no upper nd lower limit but calci it is asking to put those values how to slow it.

[@ArpanChoudhari]

3:56 saved me I used to values manually there

[@Drogba402]

Does it sketch a graph of a function using the QR code?

[@YatRatoLabsnaa]

Is it allowed in B.Sc ??

[@satviksharma1146]

Awesome video loved it . Thanks a lot. Subscribed:p

[@fo0xm898]

no

[@haSarudeen]

Brother i need a best CALC for saving formulas.... Can u suggest one..

[@sujoy70]

Well these calculators doesn't support saving formula, you need Graphing Calculator for that. Check my this video to know more- kzbin.info/www/bejne/oaW9fKtrnb9neLs

[@fakrulislam5404]

THANKS A LOT

[@Aussie_Engineer]

which calculator should I buy? 991ES or 991EX

[@sujoy70]

Definitely 991EX. check- kzbin.info/www/bejne/p6fUpaCQlK1oZsk

[@Aussie_Engineer]

what about texas instrument? i've heard a lot about them

[@sujoy70]

Yes you can. If you want. But they are not so user friendly compared to casio. And the features provided by 991EX, in same price range no other calc provides.

[@Crazytesseract]

@@Aussie_Engineer It's your choice. If you're uses to TI layout you may prefer TI. But for features, Casio is preferable. But later on don't blame me. You can buy SwissMicros DM42, an excellent, rugged calculator (almost like nothing will happen). Texas ia like ant in front of it. But then you should know RPN. Understood na? Ab chal so ja.

[@neilkanagaratnam7445]

Excellent

[@sheet-son]

Do you know how to do inverse square root of a matrix

[@Mr_AAditya]

After watching ur video i bought this calculator but i am still wonder is it allowed in state level exam?

[@mujahidaziz4662]

G.Aditya likely yes

[@azozmustafa5378]

How do we find indefinite integration in fx 991ex

[@shrinivasrao1734]

Thanks a ton!

[@RajeshKumar_9688]

sir, in 991EX , please upload matrix calculation, finding eigen value, eigen vector, all stuff related to matrix. Also in 991EX, I need simpson, newton, gordan, siedal etc alll on "fx-991eX". I need because these are in UPSC syllabus. pls share and thanks

[@sujoy70]

Everything is already uploaded using 991es, which is similar to EX. Request you to watch them. My Numerical Methods Tutorials- goo.gl/ZxFOj2 Matrix Algebra- goo.gl/4gvpeC Casio Scientific Calculator Tutorials- goo.gl/uiTDQS

[@TheSrijith2]

Hi there.. is it possible to format the columns or rows of spreadsheet as in excel? Like if I want to calculate the duration which is difference between start and finish date. So I want to know how to enter the dates in date format

[@sujoy70]

I'm afraid it's not possible.

[@TheSrijith2]

Sujoy Krishna Das thank you

[@haggerd5007]

I just want to know if Casio calculator Fx-991ex can draw graph or not. Plz reply

[@pedromeneses5661]

It's not a graphic calculator, it's a scientific calculator, you need to pay top dollar for a graphic calculator. Although this calculator generates a QR code which your phone can then graph the functions out for ya with the CASIO app

[@haggerd5007]

Man O' War Thank you 👍

[@sadiasi152]

Thanksss

[@ibrahimkhaled4058]

Please is this calc. Can evaluate triple integral ?

[@pawandc7252]

How can we check if its a original one?

[@satviksharma1146]

Is it allowed in engineering exams in colleges?

[@mrmagoo-i2l]

It’s not allowed in uk universities, if that helps? The quadratic and integration solver seem to be the problem.

[@nasusgg8274]

It is allowed in Arabic universities only in engineering subjects not math

[@nikshithajakkula7622]

How to find e to the power something value in this calculator

[@humdaanmirza6678]

Help me :in this calculator when i find inverse of the matrix then u get ans only in decimal ,no way i can find it in fractions. Teied changing all modes.

[@hairyputter5363]

Try resetting the calculator to initial mode then MathI/MathO. Maybe that'll help

[@trishpadin3789]

Can i see the Casio fx 991 Ex classwiz more closer?

[@sujoy70]

Yes, watch the video in full screen :-)

[@devdattamanjrekar3655]

@@sujoy70 👌😄

[@Ramanbhukania]

Hi, I would like to know if I want to sum 20 numers simaltenously squreroot the number how to do that in FX991EX

[@sujoy70]

You can do it in table mode. Or in Spreadsheet more.

[@delwarhossain-rd1zo]

Sir I need to know how to do vector and matrix maths on this calculator (fx-991 EX)?

[@Crazytesseract]

Please see other videos of the author. Or read the manual.

[@er_bipin7]

is 991 Ex programmable calculator reply ????

[@Crazytesseract]

Not.

[@er_bipin7]

@@Crazytesseract lol after 1 yrs i got reply from someone 😂

[@divamenghrajani9932]

how to solve comound interest on fx 991ex plss do a video

[@malaikaa.raheem2745]

When i am finding values of trignometric functions they keep appearing in decimal how can i find it in simple whole number pllzzz anyone do tell me

[@luh.breezy3558]

For full review of casio fx 991 ex classwiz + also game you can play on this calculator + more, Please checkout my friend's video : kzbin.info/www/bejne/pnazhZWsfJx_gac like and subscribe if it helps☺️👍

[@mr.manishraj5503]

Thank you sir

[@sarahpaul3293]

when trying to calculate e^sin(√(2)) , i keep getting 1.024 instead of 2.7. How do I rectify this error?

[@ajeyaacharya3504]

make angle unit as radian not decimal and u get the ans 2.7. Done!!!!!!!!!!!!!!!!!!!!

[@rahmashamail]

Are u doin the SAT barrons book cos I just did this same question a few min ago

[@Crazytesseract]

@@ajeyaacharya3504Note: radians not degrees, (not decimal).

[@tanveerahmad9975]

Sir how can I change the mode to normal plzzzz help

[@music-gt8oz]

Press shift then 9 then 3 then = and the the ac button

[@alphatoon-animation2534]

i want to play games on casio classwiz becouse i am boored with this calculator tell me any solution for it please

[@LucasDZurita]

get a graphic calculator

[@moniiiiiiiiii]

i only know tic tac toe here, so here it is || Press Fraction key 3 times (the one with the 2 boxes and the lne in the middle) then for each box press ( (Abs or Absolutevalue) be sure to press > everytime Abs is activated

[@qp7to7]

Can you please tell me how to calculate the dates by this

[@Crazytesseract]

You can't directly. You have to use Casio warehouse calculator used in big shops.

[@edmund8954]

4:32 What does L+R mean?

[@sujoy70]

Left-Right=0, means for x=8.043.., left & right side of the equation are same, that's equation is solved, as we are using the SOLVE feature.

[@grabbani3131]

how can i note my sum in it ???is there any solution??????

[@akashparashar3348]

I want to do a series calcultions and want to find cumulative sum how can i do that?

[@sujoy70]

Have you checked the 'Summation' feature at 13:34 minutes? If that didn't help, write down your calculation below which you want to perform.

[@tygerkhaja4343]

Very helpful

[@shaukatali800]

Thanks a lot sir

[@kurtteo69]

At 4:33 mine says syntax error. How do you get that display?

[@sujoy70]

Press SHIFT+CALC, not = button. Thanks! Don't forget to subscribe and share.

[@hulk8889]

Does it calculate inverse of 4 x4 matriz?

[@iBuyNewStuff]

yes it can. press your matrix, then pres the x^-1 button.

[@smartworld612]

yes

[@abhirupbasu3761]

Yes

[@oceansweetboy3450]

Sir where is hypherbolic function is calculator 991 ex??

[@ianmark321]

shift setup bottom option hyperbolic ....

[@moniiiiiiiiii]

OPTN ^(UP button) 1

[@nirajanshrestha682]

I have casino fx-991ex CLASSWIZ but how can I found original or duplicate please pls give me hints

[@asifmahmoud126]

Casio*

[@deviganesh8325]

Where is the infinity ,sirr..... Plz reply

[@deviganesh8325]

In fx-991EX

[@nibirrahman9120]

How to use hyp function in it?

[@19-239]

Sir I have got a prblm with this Casio it's display is gng of under shade it's only working when we're on the outside of the home how to fix it if anybody know this pls hlp me😢

[@sujoy70]

If display is dark / bright in sunlight, but dim inside home, then your battery is low. Please change it with new LR44 battery. ~50 around price. Don't forget to like share subscribe!

[@asifahmed-rb7ny]

How about QR option?

[@shaniceswain6374]

How do I get to the regular calculator??

[@sujoy70]

Press MODE/SETUP then press 1

[@girijais2488]

Sir this calculator only giving fraction ,how to change this plx reply

[@ifaa83]

kzbin.info/www/bejne/q3mUXouYnayMfas

[@wolffanderson7629]

you can use the SD function which will change it from fraction to decimal

[@adrianlimschannel6495]

How much is the Casio FX-991EX calculator??

[@sujoy70]

Around 1000-1100 on Flipkart etc. Check this vid- kzbin.info/www/bejne/p6fUpaCQlK1oZsk

[@ianmark321]

1250 philippine peso i just bought mine

[@iwantitpaintedblack]

around 22 euros in Germany,

[@damnitsbizzlex3741]

£25

[@alonser1]

Adrian Lim's Channel US$18, dollars

[@smartworld612]

what is initialize all ,what is its uses plz tell me

[@moniiiiiiiiii]

when you are replacing the battery or is a new user

[@shivmahakaal5894]

Sir isme matrix ka inverse kese nikal skte h please bataiye na?

[@1ultimatewwefan]

kzbin.info/www/bejne/mHeTY2emi9uMhrM Ye dekho, isme batata hei

[@littlelully7426]

can help me to remove all mode and keeping only in D?

[@chowdhuryrizvi4257]

Just press shift and the press 9 and then press 3: Initialize all . Doing this it will remove all the modes and go bank to default

[@naseerkhan-hk8od]

How to save number in calcolater fx-991ARX

[@micchang3262]

how do you add a remainder?

[@sujoy70]

Hi, have you subscribed?

[@funbusters9605]

Can you say how to write alphabets in 991ex

[@sujoy70]

Fun Busters Already explained in this video, check feature number 19.

[@funbusters9605]

@@sujoy70 I want A to z

[@sujoy70]

Fun Busters Not possible on this model. Better get fx-9860gII.

[@arunakitchen4781]

Thanks bro

[@nikhila6558]

Hlo iam not getting percentage could u pls hlp me