I feel like best type of education is video lessons with an option to ask the creator of a video if you are uncertain in smth in a video. It is much better than irl teachers and books.
If i make my own university, rather than hiring lecturers i will show students Sal's videos i am sure students will do 100% better than other universities. Bloody lecturers be like "Anyone has any questions?" and they don't look in the direction of student with hand raised.
Ger Unkwon Sal's videos are public. Using those videos for teaching purpose isn't unethical or against any law. Why do u think Khan Academy is still non profit organisation.
I literally only attend my calculus class to sign the attendance sheet then I run back home to watch this guy's videos to learn the lesson. The only notes I write are the titles of the sections (I can't understand what teacher is saying half of the time.)
How is this concept extended when the limit goes to infinity? You can't really find a neighbourgood/range for x (i.e. delta) for x = infinity because infinity isn't a "point". Or how do they deal with this? How do they define infinity and adapt this rigurous definition to being rigurous when x goes to infinity with epsilon/delta?
As for the discontinuous functions (e.g. the one you drew on top-left at the beginning of the video), can we still find "two" limits for x approaching the "broken point" from either side? Like "lim x->c+"which is from positive and "lim x->c-" which is from negative?
So we need to prove the continuity at the end point and assume the open interval is Continuous? I don’t get it, the reason for the end point to not be continuous Could also apply on the open interval right??
my calc teacher at uni says there's only one way to explain and solve calculus 1. While everyday from different youtube videos i find different methods and different shit. WTF
I used to hate math till high school , till i stopped studying for grades and started to understand the concept behind it. Conceptually math is a beautiful subject but its taught the worst way imaginable. Try to understand math and once you grasp the concept do few basic problems.
The internet is such a great teacher.
Josh Hankey More precisely this man on the Internet.
Can’t agree more bro
Khan is
Failing Calculus? Bad Grades? Run out of luck? Better Call Sal!
+Cory Cornelies LMAO
Haha! good one.
as a fellow poor college student I cant afford an 1 on 1 tutoring.
yourcatis Mine who the fuck
Could lol
U ain’t rhyme it , it should be:
Hit a wall, tired of stalls, is calculus grabbing u by the ball, then call Sal.
Why can't professors in my university be as good at teaching those things as you are?! Thank you!
saving my pre-calc grade one video at a time
Limits to Define KHANtinuity.
5000% done.
You KHAN't handle the puns?
KHAAAAAAANtinuity.
I'm dead lol
Missed my lecture on this today. Thank you for making my 3000$ class that I missed as if I never missed it
If I won the Nobel prize I would donate the money for Khan Academy ❤ I love you so much ❤❤
Mathematics don't get Nobel prize
@@alexdred5750 I'll win it in something else and I'll still donate it for Khan academy 😂😂
Let's see dear
so much better than my cal teacher...
abisriz imagine having a calc teacher who defines a limit as the limiting part of the equation
do these videos ever end, or are they CONTINUOUS!!!!
It is continuous and approaches the value of f(673) at the right endpoint
@@cityuser No, these can't approach right end-point 😢
KhanAcademy you are beauty.
just love you...
I thought calculus in one of tough parts of maths but after seeing these videos now i think not any more
So cliché
Ur teachings are really excellent sir they are easy to understand.
I feel like best type of education is video lessons with an option to ask the creator of a video if you are uncertain in smth in a video. It is much better than irl teachers and books.
If i make my own university, rather than hiring lecturers i will show students Sal's videos i am sure students will do 100% better than other universities. Bloody lecturers be like "Anyone has any questions?" and they don't look in the direction of student with hand raised.
सौरव You can't do that. Your basically profiting from someone else's videos which are free. That's a ripoff university.
Ger Unkwon students are learning on here anyway lol still making them money
Robel Gebreab but all the money belongs too khanacadamy
Ger Unkwon Sal's videos are public. Using those videos for teaching purpose isn't unethical or against any law. Why do u think Khan Academy is still non profit organisation.
I appreciate this so much. Thank you for taking the time to post this video and really all your videos.
You are literally a life saver❤️ thank you so much:)
"What i want to do in this video" is thank u for it!!!
I literally only attend my calculus class to sign the attendance sheet then I run back home to watch this guy's videos to learn the lesson. The only notes I write are the titles of the sections (I can't understand what teacher is saying half of the time.)
I only go to my calc lectures to get attendance points..i consider you to be my actual calc teacher though :P
Better watch Sal to save my grades
thank you! This really helped me understand the basis of my calc lesson.
I decided not to listen to my teachers because I don't understand their explanation but I'm going to learn here in youtube...
Tnx you are amazing from neat writing to brief expiation
That was great professor,i think i will be joining up everyday before my final exam which is coming up next month.!
Hello, this is solving graphically... But what abt solving "mathematically"?
Great review before Calc limits test!
Thank you so much these videos have helped me so much.
I cant imagine watching your videos with Oculus rift :D It would be awesome with all these colors:)
nice video to understand limiting delta countinuty
another video with lots of detailed explanation
Your videos are very helpful!
u r great khan
Excellent... thank you so much, Sal!
Awesome video. Many Thanks!
i guess im paying my university for me to just watch on youtube. nice. thanks a lot
How is this concept extended when the limit goes to infinity? You can't really find a neighbourgood/range for x (i.e. delta) for x = infinity because infinity isn't a "point". Or how do they deal with this? How do they define infinity and adapt this rigurous definition to being rigurous when x goes to infinity with epsilon/delta?
8:50 wouldn't x be approaching c^- and not c^+ ?
How smart is this man
What about pointed part of a curve is it continuous?
Amazing to watch!
Thank you so much ❤️
Allahu Akbar
8:33 he´s a Directioner OMG EXPOSED
AS HE SHOULD BE
khan academy explains everything using graph
love your voice..
You kinda sound like Tyrion Lannister of the Game of Thrones. By the way, this is great! I learned.
kem rubio True af
Wonderful!!!
Interactive and interesting.
it was awesome!
better than mr jaafar ya rayal
thank you :)
Did jump graph is a function?
As for the discontinuous functions (e.g. the one you drew on top-left at the beginning of the video), can we still find "two" limits for x approaching the "broken point" from either side? Like "lim x->c+"which is from positive and "lim x->c-" which is from negative?
I'm probably very late, but... No lim x->c doesn't exist in that case since lim x->c- and lim x->c+ are not the same
Watching this 10 minutes before my Test
KHAAAAN!!!!!
hell yea...i got an A
by just 10 mins on internet...
So we need to prove the continuity at the end point and assume the open interval is Continuous? I don’t get it, the reason for the end point to not be continuous Could also apply on the open interval right??
Also if the function is discontinuous at a point, does that mean it’s not in its domain? Even if its removable one?
Make sure to put this at a speed of 1.25-1.5x when you listen
You left out a discontinuity bro, good stuff besides that
He literally addresses that within the first minute... XD
What if I have a Q' like this one (discuss the continuity of the function f(x)= [(3x^2)- 7X+2] / X-2 at the point a=2.
what is the software you use in these videos?
How do you draw so well with a mouse🤔🤔
THANK YOU ~(:
What a fucking legend
Thank you so much this helped a lot !
In fact I'm just a High school student
hi, how to characterize continuity in terms of seminorm?
does anyone now what's the name of the app he's using?
which software it is?
What if let's say that f(x)=4. Meanwhile, lim f(x) x approaches 4 infinitely. Does that make this function continuous?
Brian Nguyen it does not since the limit as x approaches 4 does not equal f(4)
easy solution is to ask and learn....
Please use a slightly lighter color than solid black
no list ?
It's really easy. But my teachers makes it complicated
my calc teacher at uni says there's only one way to explain and solve calculus 1. While everyday from different youtube videos i find different methods and different shit. WTF
He must be very jealous about other teachers and their methods.
thank you oh mysterious voice called sal
If only the Star Wars creators had taken this lesson lol
Khantinuity
lin x-infinite {(x)pow1/2((x+3)pow1/2-(x)pow1/2} how to solve it
more like khan-tinuity am i right? yeeeeeeeeeeeeaaaaaaaaaah
sssaaaaavvvaggeggegeg!!!11!!!1
So by definition doing it exeeds Maths....
He forgot to include the third discontinuity which is asymptotic discontinuity.
Mathematically solve this
comel
does anyone else see that giant smiley under cont.@ c? lol
It was a bit too fast
not clear voice
i hate math
I used to hate math till high school , till i stopped studying for grades and started to understand the concept behind it. Conceptually math is a beautiful subject but its taught the worst way imaginable. Try to understand math and once you grasp the concept do few basic problems.