Using the convolution theorem to solve an initial value prob | Laplace transform | Khan Academy

  Рет қаралды 239,804

Khan Academy

Khan Academy

Күн бұрын

Пікірлер: 81
@estebanlopez1701
@estebanlopez1701 5 жыл бұрын
I love Sal. One of funniest things about him is that he is an MIT graduate who admits getting confused while teaching, I think that makes learning from him so pleasant because you do not feel that stupid when you don't get things right away
@bbcbigblackuknowifuknow1148
@bbcbigblackuknowifuknow1148 2 жыл бұрын
💯🤭❤️
@gh.adithya
@gh.adithya 11 ай бұрын
I struggled with physics over the past year in college, mostly due to my math being weak and not being taught well enough at my uni. This playlist helped me so much, watched all 45 videos over the past few days. Thanks a lot Sal, very grateful for your effort and dedication.
@seabasschukwu6988
@seabasschukwu6988 3 ай бұрын
same bro
@MrDevin666
@MrDevin666 13 жыл бұрын
Omg i'm not at this level in calculus, but i still enjoy watching videos of stuff that's complete 'Huh?" for me, lol you're awesome and ingenious in so many ways that cannot be expressed in words, only gods can comprehend the intellectual power of this man's knowledge.
@GamjaField
@GamjaField 9 жыл бұрын
Can you do the video about Fourier series someday?
@williammelendez-suchi5546
@williammelendez-suchi5546 8 жыл бұрын
thanks to your amazing video series, i was able to understand the fundamentals of Diffetential Equations before taking the actual course. I ended with an A in the class, and recommend to all my friends these videos. thank you for everything!!!
@MrPFrizzy
@MrPFrizzy 10 жыл бұрын
Thanks Sal. Great explanation on all 45 videos! RESPECT!
@xadrez1348
@xadrez1348 7 жыл бұрын
45?? i found just 20
@EvanBouchard
@EvanBouchard 13 жыл бұрын
After over one full decade, I have finally found the most useful thing on the internet. One hundred cocktails to you, sir. Thankyouthankyouthankyou.
@landofbooks4426
@landofbooks4426 3 жыл бұрын
WOW. There are a lot who watch your videos to understand calculus. I watch your videos to become like you !
@rafafdz
@rafafdz 6 жыл бұрын
Sooo its 4 am and my exam is at 8:30 am... I started watching this series like 2 hours ago. Wish me luck
@anilturan4170
@anilturan4170 6 жыл бұрын
so what happened dude :)
@Cashman9111
@Cashman9111 6 жыл бұрын
he died I guess
@cansabanci
@cansabanci 5 жыл бұрын
@@Cashman9111 nobody comes back here after exams finish...
@8kubera
@8kubera 4 жыл бұрын
he must be celebrating still...forgot to come back and say thanks
@Kosekans
@Kosekans 15 жыл бұрын
After now having watched these 45 videos, i'm seriously a bit sad, that this was the last one for now. But let me say, if you decide one day to continue this videos about differential equations or other higher mathmatics stuff, no matter if tomorrow, in one year or in five years ... i'll be sitting here waiting ;-) Thanks a lot for the excellent explanations.
@uzumo4870
@uzumo4870 3 жыл бұрын
what about 11 years dude
@Mike_Guo
@Mike_Guo 11 жыл бұрын
i wish someday i can a be a teacher like you, explain complex stuff in an easy way
@mooeoo
@mooeoo 12 жыл бұрын
Finished all this 45 videos in 4 days. It was very clear. Thank you so much Sal. I would appreciate if you give us some examples with real life application.Such as that Spring which is mentioned in this videos. Thanks again.
@fawzyhegab
@fawzyhegab 11 жыл бұрын
I have finished this list now . I hope you add more videos on Differential equations , this would be great :) you can explain approximations methods for solving DF . thank you very much for those great Vids :) Greetings from Egypt!
@haydenstephan1489
@haydenstephan1489 7 жыл бұрын
Finished the playlist! I don't even need this, I just love learning math!
@lukapopovic5802
@lukapopovic5802 7 жыл бұрын
Hayden Stephan haha same
@SuperSpawn1995
@SuperSpawn1995 8 жыл бұрын
so long and thanks for all the fish
@mikebaee7731
@mikebaee7731 2 жыл бұрын
Thanks, this is exactly what I was looking for...
@joshmeiyb
@joshmeiyb 6 жыл бұрын
Thank you Sal,I've watched the whole 45 videos, it really helps a lot!
@stephaniesingh14
@stephaniesingh14 6 жыл бұрын
I'm only seeing 20. pls help
@shahrukhtramboo6781
@shahrukhtramboo6781 8 жыл бұрын
Thank you sir for the lessons. you made my day.
@sisip123
@sisip123 15 жыл бұрын
awesome! i'm cramming for a differential equations test tomorrow. that was really helpful! thank you.
@SandeepSingh-qr3dk
@SandeepSingh-qr3dk 5 жыл бұрын
thank you sal. just watched your last video on lapalce transform.
@sstl517
@sstl517 11 жыл бұрын
You could have used a table of Laplace transforms and looked up the inverse Laplace of 2s/(s^2+1^2)^2 ==> 2(t(sint)/2) = t(sint) so y(t) = t(sint) when y(0) = 0 and y'(0) = 0 and find constants C1 and C2 The point of using Laplace transforms is to avoid convolution in the time domain.
@hddevani
@hddevani 9 жыл бұрын
Hey will you please make videos on partial differential equations ( wave , heat , --laplas , diffusion ) ..and solutions for it...
@arimakousie5612
@arimakousie5612 8 жыл бұрын
Thank you very much , indeed it means a lot , and helped a lot, greetings from japan
@dienefordelta
@dienefordelta 13 жыл бұрын
i have an exam in 20 mins. I've watched almost all of these and I honestly feel well prepared now. Thanks so much!!
@aneeshprasobhan
@aneeshprasobhan 5 жыл бұрын
so what do you do now ?
@fakhriadk
@fakhriadk 2 жыл бұрын
I procrastinated and only gave myself 2 days to study this. I'm screwed 😩
@VeXorian1337
@VeXorian1337 13 жыл бұрын
Hi, I'm still missing the point of convolution when solving differential equations. Ok, I got the idea that if you take the convolution of the original signal with the impulse response of a transfer function, you actually get the new processed signal. But how is that easier to actually solving the equation, when you can just do partial fractions and solve it even faster and easier? Still it was a nice series of lessons, that explained what convolution is, for which you have my thanks :)
@mrKreuzfeld
@mrKreuzfeld 15 жыл бұрын
you would not mind making a lecture series, on soblev spaces? :P I like your vids, keep up the good work (btw that was a joke about asking you to make lecures on soblev spaces, it would probably be only me that would use it)
@emelefendi1
@emelefendi1 11 жыл бұрын
i am so sorry to not being here before...you are a great teacher nice job really
@Flopsaurus
@Flopsaurus 9 жыл бұрын
Thanks for everything Sal!
@MartinVincentBloedorn
@MartinVincentBloedorn 14 жыл бұрын
Excellent explanations. Keep up the amazing work. You're saving my life as a calculus student, and that's for sure ;D
@annadourneva8348
@annadourneva8348 4 жыл бұрын
Thank you!
@happyhedgehog6450
@happyhedgehog6450 6 жыл бұрын
Awesome videos here. Thanks Sal.
@phathumanugu3757
@phathumanugu3757 4 жыл бұрын
Great, hoping 2 pass
@samehum
@samehum 14 жыл бұрын
Hi Sal, Can you please do APPLIED MATHEMATICS videos
@jahanaraparveen9436
@jahanaraparveen9436 7 жыл бұрын
can you do a video on series solution??I will grateful if you do so
@jeannnliao9406
@jeannnliao9406 4 жыл бұрын
thank you Sal!!!
@12804olivier
@12804olivier 10 жыл бұрын
thank you sal
@PMTcommenter
@PMTcommenter 15 жыл бұрын
You're AMAZING!!!!!! Thank you so much!
@sassanmokhtar4481
@sassanmokhtar4481 9 жыл бұрын
Thank you Sal.
@Tessastiel
@Tessastiel 7 жыл бұрын
Very useful, thanks
@elenizotos3359
@elenizotos3359 9 жыл бұрын
Thank you!!!
@xadrez1348
@xadrez1348 7 жыл бұрын
thanx u did great help
@phamhatrang8652
@phamhatrang8652 7 жыл бұрын
Thank you so much
@bonbonpony
@bonbonpony 7 жыл бұрын
Can it be also used for solving differential equations with NON-constant coefficients?
@geethsameer614
@geethsameer614 Жыл бұрын
I wanted to know about this, but I couldn't find much info anywhere
@michaelempeigne3519
@michaelempeigne3519 7 жыл бұрын
you stated at 5:23 "that's this term right here" when in fact that it is complied of two terms.
@skepticmoderate5790
@skepticmoderate5790 4 жыл бұрын
So what?
@kubilaybayindir8684
@kubilaybayindir8684 9 жыл бұрын
Thank you for everyhing :)
@kikoiekiko7440
@kikoiekiko7440 2 ай бұрын
shouldnt the term on the left be cos(alpha t)
@Kosekans
@Kosekans 12 жыл бұрын
Yes of course I am ... ;-)
@juanvaldez4169
@juanvaldez4169 7 жыл бұрын
I love you Sal !
@mwm48
@mwm48 14 жыл бұрын
...how come i can rarely get ANY of your videos to display more than blank screen, this seems to happen more often than not. does anyone have any info on how to resolve this problem? :( btw, the videos that decided to work were very informative, especially since my professor's English is kinda rough, thanks for the vids!
@TheSa7777
@TheSa7777 12 жыл бұрын
@Kosekans It's been 2 years. Are you still waiting?
@PlanterSanSama
@PlanterSanSama 12 жыл бұрын
Never have I understood a video while laughing at the word "thingy"
@J0EH3AD
@J0EH3AD 12 жыл бұрын
Thoug I love mathematics, I have no idea what these things mean.
@paoboonjinnz
@paoboonjinnz 7 жыл бұрын
sorry my professor wanted students to solve all the way down to the end.
@alxjones
@alxjones 12 жыл бұрын
You never mention that if you have a convolution f*g then you can equivalently use g*f. That would simplify this integral a bit, as it would be integral e^(T)sin(T)sin(a(t-T))dT. Not that it's solvable, it would just look a bit nicer. Sometimes it CAN be the difference between a solveable and unsolveable integral.
@AzizSobirov
@AzizSobirov 11 жыл бұрын
Thx for your compliments but if my name is Aziz it doesn't mean I am Arab it like saying all muslims are arabs.
@TasneemSTEM
@TasneemSTEM 8 жыл бұрын
WE are all brothers
@DavidKlausa
@DavidKlausa 15 жыл бұрын
@mapleleaflover89 you're = you are
@AzizSobirov
@AzizSobirov 11 жыл бұрын
Hey I am 17 and finish all the video in 2 days
@DeadbeatXT
@DeadbeatXT 11 жыл бұрын
you're
@DelphianSociety
@DelphianSociety 11 жыл бұрын
.Yes, it's a stupid name .
@x4yuf4nx
@x4yuf4nx 14 жыл бұрын
you are amazing. will you marry me?
@hddevani
@hddevani 9 жыл бұрын
Hey will you please make videos on partial differential equations ( wave , heat , --laplas , diffusion ) ..and solutions for it...
@derejeteshome7332
@derejeteshome7332 5 ай бұрын
yes
@asif7240
@asif7240 Жыл бұрын
Thank you so much!!
Don’t Choose The Wrong Box 😱
00:41
Topper Guild
Рет қаралды 60 МЛН
Beat Ronaldo, Win $1,000,000
22:45
MrBeast
Рет қаралды 157 МЛН
Quando A Diferença De Altura É Muito Grande 😲😂
00:12
Mari Maria
Рет қаралды 44 МЛН
Fundamental Theorem of Calculus Explained | Outlier.org
16:27
OutlierOrg
Рет қаралды 390 М.
Laplace Transform: First Order Equation
22:38
MIT OpenCourseWare
Рет қаралды 293 М.
Proof of the Convolution Theorem
18:10
blackpenredpen
Рет қаралды 110 М.
Convolution Integral for Initial Value Problems (KristaKingMath)
17:41
Solve differential equation with laplace transform, example 2
15:21
blackpenredpen
Рет қаралды 145 М.
Deriving the Dirac Equation
16:34
Richard Behiel
Рет қаралды 113 М.
Don’t Choose The Wrong Box 😱
00:41
Topper Guild
Рет қаралды 60 МЛН