20 Cool Features Of Casio fx-991ES Scientific Calculator !!
Vložit
- čas přidán 7. 09. 2024
- Watch My Other Calculator Tutorials-
goo.gl/uiTDQS
Hello My Dear Friends,
I'm Sujoy from India,and today I'll tell you about 20 cool features of this calculator in COMP mode. I've uploaded many other videos on this calculator,Click the playlist link above to watch them.
List of 20 features-
1. Fractional Calculation
2. Expression Calculation
3. Trigonometric Calculation
4. Percentage Calculation
5. Hour,Minute,Second- Sexagesimal Calculation
6. CALC and SOLVE Function
7. Random Number Generation
8. Numerical Integration
9. Differentiation
10. Factorial Calculation
11. Unit Conversion
12. Scientific Constant Feature
13. Root Calculation
14. Permutation and Combination
15. Using Calculator's Storage
16. Multi-Statement Calculation
17. Adjusting Display Contrast
18. Typing Names In Calculator
19. Polar To Rectangular Conversion
20. Rectangular To Polar Conversion
I've uploaded videos on Statistics,Numerical Methods,
Business & Financial Mathematics,Operations Research,Computer Science,Electrical Engineering,Android Application Reviews,India Travel & Tourism,Street Foods,Life Hacks and many other topics.
And a series of videos showing how to use your scientific calculators Casio fx-991ES & fx-82MS to do maths easily.
Join me at my CZcams Channel- / sujoyn70
Join me at my Blog- www.sujoyn70.bl...
If someone is getting answer like this-
8/1000 = 8*10^-3.
Then do the following-
Press SHIFT+MODE, press 8 (for NORM option), press 2.
NORM 1:- 8/1000 = 8*10^-3
NORM 2:- 8/1000 = 0.008
And perform the above calculation again,if you get 1/125, press SD button (button beside the M+ button), to get the fraction form.
I hope it helps! Kindly encourage me to make more videos by subscribing to my channel. And please share this video,because sharing is caring :-)
bhai mera dhakkan gun gaya hai calculator ka kya karoon ?
+punk prince
aap kuch mat karo, hum mithaai baant te hain
***** okk ..
Per kyon ..
punk prince
seems like you didn't get the sarcasm
ɷɷɷɷ Heeyy Frienddssss I Have F0undddd Workinggg Online Hacck visitttt : - t.co/uF3NR43gGE
To know more about significant figures and to know how to convert between scientific representation and normal decimal representation,watch my this video-
czcams.com/video/veZtv8PF24s/video.html
It's on Casio fx-82MS Calculator,but the concept well fits onto the casio fx-991ES and Casio fx-991ES Plus also.
Kindly watch the '20 Cool Features of Casio fx-991ES calculator' video from 2:20 minutes to 2:42 minutes,I've described the matter already in the video. And subscribe for more videos.
can u telll me is fx 991 es is programmable or non programmable.
It's partially programmable. Means you can program it to solve simple problems like finding root of quadratic equation, but can't run complex programs such as finding rank of a matrix. Also once the calculator is turned off,all programming is lost,you can't store programs in it.
So it is allowed in upsc exam???
That you've to confirm with the exam authorities. If scientific calculators are allowed, then it should be,else maybe not. And please share here what you got to know.
And subscribe for more updates :-)
I am taking my FE exam this semester with this calculator, and you have helped so much after only one video! I am so thankful! I will be watching your other videos, subscribing, and upvoting. I am so thankful you spent the time to make this. Thank you, thank you, thank you!
Howd the exam go ? U good now ?
If this video has helped you,please "like" it & "subscribe".
If you subscribe,you'll be notified by email whenever I upload a new video. And if you don’t have a youtube channel yet,by subscribing,you'll get one!
If you "like" the video,you can later find the video under "likes" option on your own youtube channel.
And don’t forget to share. Remember,"sharing is caring". Thank you all.
this calc is amazing lasted me all through middle school and im in highschool right now and still using it .... really good ... test center approved... and rugged
in the 13th feature route 2 calculation if you have press the button of sd inspite of shift = the result would have the same
To know how to use "Sum" feature, watch my another video- "10 Additional Cool Features of Casio fx-991ES Calculator". And which "seq" feature you are talking about?
If you want to change how the answer is shown, you can just press the SD button. Rather than shift equals.
If you enter any expression containing x,and press only CALC,it'll solve the expression for given value of x. You can watch my video about Newton Raphson method to know more about this.
And if you press SHIFT+CALC,it'll solve the expression to find the value of X,when values of other variables are given.
Hope the concept is clear to you.
Thankyou soo much,i didnt have to use calculator when i used to study back in my country,but coming abroad i really needed to use one of the,and u helped me out learn its features,I would also like you to help me out finding area,volume and some trignometric applications.
My god............ Amazing calculator I never thought this little calculator could do so much............
See my video- 10 Additional Cool Features of Casio fx-991ES to know that!
very beautifully explained,u are a good explainer
It's my pleasure! Kindly subscribe to my CZcams channel so that when I upload a new video,you get notified. Please share my channel's url among your friends and family. Because knowledge is meant to be shared.
Nice overview. Note you can just enter 1000Ran#, no need to explicity include the multiplication symbol (and as pointed out below, SD key will switch between decimal and fraction ouputs, rather than using shift + =)
mrIceblink Hmm,you are right! This was my first vid,I too was in learning phase that time :-)Please do subscribe to my CZcams channel so that when I upload a new video,you get notified. And please like & share at least one of my videos. Because sharing is caring :-)
I love you, you're the reason I got a 96 on my final math exam.
Thanks a lot for downloading this video. You are one tool to improve my knowlege in math. Keep downloading. You are kind and humble . A million thanks to you and your talent
Rose Hint It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)
This is my childhood calculator since my dad bought it to me and i didn't noticed that there so many things i can do with this calculator
alright mate, cheers for this video; certainly more easier than reading the manual and that! your accent is alright as well, cheers
This is great. Casio has even come out with even a more capable calculator here in the U.S (Casio 115ES Plus) which has added more features like solving inequalities. So a good calculator just got better.
this should truly help me in my math exam thank you
Dear Sujoy Krishna Das , You are highly appreciable for your great and sincere work..
You are highly requested to upload the video tutorials of casio fx-9860 Gii.
Thank you. Pol and Rec really helped me.
very help full,,i was not aware from these function thanks fro helping
Thanks Sujoy, It was a great help to me to get hands on this calculator.
Do two or three successive calculations,then clear diplay using AC(not ON). Now press joystick up,u can access previous results. That's it!
great,,,, u r boss of sci...calculator logic.... thanks
+GAZI ALAMIN It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my CZcams 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 :-)
Thank you, I've been using this calculator since high school!
Isn't it cool? But 991EX is cooler! Check my videos below. Thanks! Don't forget to subscribe and share.
7 Exclusive Cool Features Casio fx-991EX Classwiz Calculator
czcams.com/video/qvqtmZ_H50g/video.html
32 Cool Features of Casio fx-991EX Classwiz Calculator-
czcams.com/video/ohzPj_CRW-M/video.html
You are super duper hero. can you plz tell me is there any way to arrange all random numbers in increasing or decreasing order
IT IS WONDER CALCULATOR. IT IS VERY USEFUL WHILE LEARNING SCIENTIFIC SUBJECTS. USE THIS CALCULATOR TO CHECK UP AND UNDER STAND THE SUBJECT.
you can get mod values too!!!
How to switch display mode to ab/c:
go to settings (Shift + mode)
press arrow down (to view more settings)
select "ab/c" (number 1).
Then do your calculation (in comp mode), like 50 / 3 and you will see 16 2/3 thus mod is 2 or try 54 / 7 which is 7 5/7 (mod is 5). If you don't see any fraction after the result then mod is 0 like 50 / 5 = 10 (mod is 0).
The remainder fraction is shown in reduced form, so 60 / 8 will result in 7 1/2. Remainder is 1/2 which is 4/8 so mod is 4
Try this with different numbers yo will understand what im sayin :D
Yes,in some cases,while finding inverse of non-standard trigonometric values,u may get "math error". "Math error" means those calculations are not possible. Eg- 1/0(1 divided by zero). Like I got math error while doing sin^-1(63.5).
thanks a lot Sujoy. go a head.
Sujoy Krishna Das What is the advantage of pressing shift, mode, MthIO when working out the square root of sums of squares? You can do the exact same thing without pressing it.
sujoy could u pls explain to find a complex root for qubic eqn such as this eqn
= (-a^3) + (7a^2) - (13a)+3
how can i change the roots instead of having 0.26 or 3.73
Thanks for your reply, this was availible in market, i dont have got one, here in the uk i am looking for models which shows comma separation. if in exams a single figure gows wrong it ruins the whole answers to the question. I dont want to count all the zeros in the exam where time is less and more pressure.
its very good☺ I learned how to manipulate my calculator.this would be a great help👍
Press the X^[] button(button above the Sin button). And type 14.5 in the below box,and 23.5 in the above 'to the power' box and press = button.
U r talking about general integration(we also did in 11-12th std). In that u'll get ans in polynomials,not numerical value.
But this calculator can only solve numerical integration & differentiation.
In numerical integration,there're upper & lower limits. If limits are not given,a numerical table will be given. Numerical integration can be solved manually by Simpson's 1/3 Rule or Trapezoidal Rule.
I'll make videos on Simpson & Trapezoidal Rule in near future. But 4 now,hope I ans ur query!
most effetive channel..thanks
hi thank you very much for the guudelines on how to use casio 991 scientific calculator... it gives me some idea coz sometimes so confusing again thank you
Well,you can use "ENG" button to get the answer in exponential form.
Thank you Sujoy for showing different features of the Casio calculator! I will be starting a Chem II class in January. If you can foresee some functions of the CASIO FX115ES PLUS that will be necessary in Chem, I would be grateful for any tips.
+P Deverell Thanks! You did not subscribe to my channel or shared/liked any of my videos. Plz do so. 991es and 115es are almost same, 115 es having some more features.
Thank you so much Mr. Das that was really entertaining and very useful for my upcoming exam tomorrow may God bless you. Keep up on doing this please!
It's really my pleasure! You don't know how much the comments from users like you inspires me! I believe,when someone doing a good job,we should appreciate it,it really boosts their motivation. Thank you! Yeah,I'll keep on uploading more videos :-)
Kindly subscribe to my CZcams channel so that when I upload a new video,you get notified. Please share my channel's url among your friends and family. Because sharing is caring!
Sujoy, thank you so much for this tutorial.
I will be using this calculator for my FE Civil Eng. exam.
thanks again.
P.S. can't wait to watch the rest.
Cecilia Varga It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my CZcams 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 :-)
As far I know,both are same in features. You watch & compare my two videos,hope it'll be clear to you,I've explained clearly in my in my video about CALC. Anyway,which expression did you enter,for instance?
Thanks. Nice video. I would advise, however, that you pronounce more slowly the names of these features . I understood the explanations but many times didn't get the name of the feature.
awesome sir bundle of thanks
You can do that in mode 1,COMP mode,no need to go in matrix mode. But u have to put values in the variable(here X) first,see my other videos to know how to set values in variables. And the final result will be a numerical number,not some polynomial of X.
Like, for X=2,value of your above question becomes 201.
@7:22 I heard "how many communists in poor people... something something NPR"
Lol
you're lucky you got that out of it
Very helpfull video. Learnt so much in feww minsss. Thanks a lot.
Could u please tell me how to use power denotions in this calculator ( fx-991ES PLUS or maybe the same calculator, u have fx-991ES) like such as, kilo , milli, pico, Mega
Omg this was amazing sirr
@GREAT DAY i come across this coincidence everyday so its not a big deal for me anymore. there are many people who bear the name wahab but wahaba is the first one so they get really surprised just like you..
Could you please tell:
1. Difference between MthIO and LineIO
2. Difference between Rand,Ran#,Ranint
3. Use of Fix,Sci,Norm (in Setup)
4. Difference between M+, M- and M.
5. Use of ENG
I'll be very grateful if u could help :)
1. MathIO lets u use some math features as a graphical template and make them easy to use. They appear on calculator display same as they are in your textbooks,such as integration symbol with lower & upper limit. U can do integration also in LinIO mode,but can't use lower & upper limits,try it! Also u can use fraction button on MathIO as in real life.
2. Only Ran# feature is available in Casio fx-991ES,so I can't tell about other two features.
3. To know about Norm,Sci & fix,please watch my video- You May not Know_20 Cool Features Of Casio fx-82MS Scientific Calculator!
4. To know about Memory(M),please watch my video- You May not Know_20 Cool Features Of Casio fx-82MS Scientific Calculator!
5. ENG represents larger or smaller number in 10^ format. For eg- Enter 456258x69 and press = .See the answer,then press the ENG button,and see the change.
Hope I answer your queries! If you appreciate my effort,please do like & subscribe! Thank u!
Thanks a ton Dada...that was awesome...actually i use fx-991es-plus and it has some extra features....i have subscribed to ur channel...i went to ur blog but probably its down...let me know when u make a new blog :)
PrateekTrivedi Welcome bro! My blog is not removed,I just changed its address to-
www.sujoyn70.blogspot.com
Nice work.. I really liked the way of Ur communication
AWESOME VIDEO! JUST WHAT I NEEDED FOR MY EXAMS. LOVE YOU
Alpha Male It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my CZcams 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 :-)
very very helpfull ...thank U..
Hi i would like to ask you which one is better compare with FX-991ES to FX-991ES+ & also the canon F-789SGA?!
Thank u! But it gonna be little difficult to add cc to an existing video,a complete rework need to be done. And I don’t have broadband in my home :-(
One think u can do,try playing the video in slow speed(.50x,.75x) and watch it for 2-3 times,that may help!
Supper Hit .................... Dada
I heard though India is doing better. Still al lot of problems however. Hopefully you will have more access to the latest electronics in the near future.
Thanks for posting great video now i am definitely getting one.
How do you access previous equations and answers with the Casio fx-991ES PLUS C and answers like you did at 5:26?
I think u can. See my 2 videos on statistics and 1 video named "10 addition cool features of casio fx-991ES" to know more
Hi Sujoy could you do a comparison video between the fx-991es and fx-115es.
thanks man... useful... i like ur accent... i've heard that indians are good at maths... :)
I'm watching this in 2022 after a decade
Still very useful 👍
thanks for comprehensive video!
I did not find answer - can fx-991ES store equations or expressions like X*(Y-5) in the memory after OFF / ON?
Thanks for sharing the video tutorials
Thanks A lot helped me a lot
thank you. this was helpfull
***** It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my CZcams 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 :-)
thank you very much for this valuable information
+srikanth deshboina Good news,more caluclator vids are coming! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my CZcams 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 :-)
Yes. You bring integration or differentiation sign and enter your term,say d(sinX+CosX)/dx. Though you've to enter only your term,d/dx is given by calculator template. For eg- d(sinX+CosX)/dx|x=5 produces 0.01586.
Hope this was helpful!
Oh ho! Nothing is wrong friend! Actually,when the calculator prompt you to enter value for a variable by variablename? (like A?) on the upper screen,it shows old value of that variable on the bottom screen. So,3005795 for me and 100 for you were the old values.
This calculator is not allowed to used in secondary schools (in Singapore) during national exams O or N levels as it is able to calculate complex integration and differentiation and many other features. However for higher level institutes like polytechnics / University is completely allowed
Faisal Samudra this calculators are allowed from class 8 in edxcel institute or schools that follow edexcel
Superb Sir _ you Great _
Thanks for sharing
sir is there any way or application for the calculating the 2 or more parallel resistance or impedance's equivalent form in this calculator (casio fx 991 es plus)
or can you recommend a way to get the result more quick ???
by the way thank you for the video
Yes! If resistances are r1 & r2,then equivalent parallel resistance is-
(r1 x r2)/(r1+r2)
I cannot see the FACT button, can you tell me how to find the Prime Factors of 220 using the CASIO 991ES Plus
Do you know how to simplify an expression with variables on fx-991ES or is it impossible?
Thank you, you have helped me pass my engineering exams :)
+Manny Mann Thanks! Seems like you did not subscribe to my channel or shared/liked any of my videos. Plz do so. Check more vids here- goo.gl/uiTDQS
The dot symbol you use is what we use for multiplication in Norway.
look at minute 3:21, you show feature #6, you enter in the y= , then you press cal button twice, then your calculator displays 3005795...i do the same thing but mine displays the number 100.....so what is different , where am i going wrong? thx
very useful, thx man
hi sujoy, do u know the differnce in functions of fx991es and fx 991 es plus .and if both of the calculators are allowed for engineering service examinations..
?
+Mohit Jain ES plus has some extra features like g(x) along with f(x) for creating table etc. I don't know if that's allowed in IES/MES exams, check their guidelines.Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my CZcams 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 :-)
Hello!
How can I change the answer to be shown, for example I divide 0.14 by 100 --> 0.14/100 = 1.4x10^(-3). When I press SD I get answer 7/5000. How can I change to be shown like 0.14/100 = 0.0014 without enabling the FIX option ? Thank you and great video! Subscribed
djagoegei18 Chnage NORM value to 2. Check this vid- czcams.com/video/xFIUO8IYUXo/video.html or all my calc vids- goo.gl/uiTDQS
Sujoy Krishna Das Thank you so much, it worked!
I have another question. Your calculator looks like it has backlit display. Or is it just seems like that?
It just looks like that! I've one request,if you could share my videos and my channel's URL on your Facebook & Google+ profiles that would be very much helpful for me and other students who are doing similar courses like you. Because sharing is caring :-)
Sujoy Krishna Das I'll do that :)
Yes. they are same manual
Thank you so much :)
THANKS DEAR
thank you very much
Hi, I WOULD LIKE TO KNOW IF IT IS POSSIBLE TO SOLVE INDEFINITE INTEGRALS IN THIS CALCULATOR. THANKS
Very Good Video, Thanks Sujoy! Need help..
Comparing "Casio FX991 ES Plus" vs "TI 36x Pro" = which is better ? OR which is best, that has all the functions ?
+Ranjan S Both the calc are good in their domain. But I found Casio more user friendly and feature rich.
+Ranjan S One scientific feature of the TI36X Pro that merits its tremendous usefulness is its power-off memory protection. If your TI auto-times out and turns itself off after a few minutes of non-use, you can turn it back on and the equation you were working on is still there. I wish Casio would implement memory safeguard on its calculation history; I would use my Casios more often.
Press SHIFT+MODE,goto NORM option,and press 2.
Or CLEAR the calculator by pressing SHIFT+9,and press 3,then press = button.
Thanx for the video but I didn't understand some of the technical words. I think u should add subtitles.
Well done mate, good job. Thank you.
Well,I haven't use Canon calculator,though I read about it's features from canon website for you,it's technically sound,but how far it'll be user friendly like Casio that I can't say. And talking about Casio,your pick should be fx-991ES+,as it has some additional features over fx-991ES.
Nice!I love these cool stuff.
Can you redo feature #6 ? it does not see to be working the way you demonstrate it on my calculator, mainly the part where you press "calc"
thx
Thank you.
thanx alot sujoy
+Padmanabh Borkar Thanks! Subscribe to my CZcams channel so that when I upload a new video, you get notified. If you like any of my videos, request you to please like & share it. Because sharing is caring :-)
Thanx a lot Dear sujoy. Can you please tell how to solve integration of logarithm functions using fx-991es calculator ?
Suraj Kaushal I think you can solve it using the normal integration operator on this calc.
Sujoy Krishna Das I was trying to integrate log(sinx) from 0 to pi/2 & log (1/x - x) but it gives MATH ERROR. Why is that so ?
On a calculator you can't do 'divide by zero' operations. For integration log(1/x-x),and if x=0. The result becomes 1/0,which is restricted. Similar things might be happening with sin(x) operation also.
Press ALPHA & then M+ button to get M variable on screen. Then do needed operation.
can is model be used to solve system of linear equations with complex coefficients???
like example work with float and solve some simple ?