Lecture 1 | The Fourier Transforms and its Applications

[jadamuzg1]

love the unruly board on 20:53

[ivoryandwood]

Mathematicians have terrible handwriting. Get used to it.

[alexc475]

Youtube University, my community library, and amazon is the best invesment I've made since dropping out of college. Education is beautiful, but college is not.

[172Break]

@alexc475 And you won't leave these lectures with a huge pile of debt to pay!

[Aleem074]

just write clearly

[jazzguitar2010]

Shirt ironing takes two seconds. 

[pzorsky]

Former engineer, biochemist with experience in x-ray diffraction, now MD

This is a great review. Love it.

[EvaSlash]

it looks like he is writing arabic

[JonnieGraham]

The absolute best I have come across on the net as a first course in the Fourier transform.

[msingletary1984]

whatever bullshit! I mean whatever you learn out there.

[asifadio]

i can see he is a mathematician

[Nyocurio]

Does anyone know if high school mathematics will be enough to understand these lectures?

[drchicken3000]

@Nyocurio Try it out. If you're motivated you can just look up any math you don't understand.

[TheDirisalascharan]

@Nyocurio sure,its enough!

[Briggie]

@Nyocurio The only thing you really need to understand this is integral calculus,

[tejalshahh]

i already registered at the website ..interesting..searching for relevant notes..

[Blackenedbarman]

where are the numbers?

[modulate72]

just took this shirt out of the package... gonna wear it anyway

[twg20101]

@modulate72 my thoughts exactly!

[caltannerthanyou]

well it's the first lecture but still spends too much time off jr high tangents (reminding us why sin and cos are periodic etc...) nice philosophical review of a couple basic concepts i guess........

[trese0000]

The audio could be much better. I listened with my headphones, and you can really tell there are skips of silence when the professor speaks or erasing the board it is pure silence. That was the only really annoying thing, but great lecture content. Getting off to a great start.

[trese0000]

I am so grateful for the invention of a type writer and later discovered text editing software's. Thank Goodness.

[mryoubic]

The Fourier Transforms is an art

[shaneymane15]

You people have an entire class just for Fourier transforms? We covered it in like a week in my PDE class :/ Damn Asian math ninja teachers.

[Fomistu]

this is crap. Useless... don't waste your time.

[acancalan]

@Fomistu actually he has tried to explain the idea behind the fourier series/fourier transform. The basic concept of periodicity on which the whole concept of fourier transform is based. It's not from exam point of view.If you already realize all this then one may skip otherwise it is worthy.

[HairLikeCottonCandy]

its ALL RELEVENT

[ChaosDynamics]

The amount of Asians in the lecture theatre!

[blackboy26c]

If all lecturers started with the very basics, students would not run away from maths and physics lectures. This is very basic and very easy to understand. Before I watched this video I knew only the awful symbols that the use.

[HimynameisJUL]

His handwritting is HORRENDOUS.

[EscapeDummy]

@HimynameisJUL you're not paying $50k to go to stanford, enjoy the free lecture instead of bitching about his handwriting. it's still legible.

[kingofqwerty]

@HimynameisJUL You can't have gone to a lot of engineering lectures in your life ;)

[jahs389]

@HimynameisJUL

Ever seen a physician write a Rx script?

[mooniusss]

@HimynameisJUL That's how you know he's a good engineer

[atmark666]

it is easier  or me to understand do math first then general ideas.

[imatunisian]

why don't he just speak mathematics and cut the bullshit.

[MasterThief1324]

Is it common to see engineering majors minor or double major in/with mathematics?

[Totoros00]

Reciprocal relationship 43:40

[rcomid]

tank you for this Stanford.

Regards from Iran 

[farfromtheland]

The noise gating used on these videos is not worthy of the material.

[boydzhang]

How to pronounce greek letter v in v = λν? (as we already know Lamda and n-ew)

[j4GGy]

@boydzhang it's nu

[j4GGy]

@boydzhang it's "nu"

[XboxTheBeatboxer]

Go to lecture 2 for fourier stuff. all you get from this one is:

A) you use a fourier to break down a signal into constituents, fix certain signals, then reassemble

B)you have periodicity in time (pendulum motion) & periodicity in space (heat on ring)

C)freq=nu, wavelength=lambda,, nu*lambda=velocity,

D)Notice reciprocal relationship between nu and lambda. If you are trying to use fourier to analyze something you should look for quantities that are reciprocally related to one another. NEXT!!!

[cokernator]

i feel so dumb now, but what the heck, i make $180k a year. it's ok.

[devdawgez55]

@cokernator what do you do?

[Raithed]

Bullshit LOL.

[nenpa8lo]

Go to lecture 2 for start of the FT. This one is just basics you do not really need if you got here for DFT, FFT etc.

[theprof1958]

An amazing application of Fourier analysis is JPEG compression algorythm

You can find a fine article on english wikipedia under the word JPEG

[theprof1958]

An amazing application of Fourier analysis is JPEG compression algorytm

You can find a fine article on english wikipedia under the word JPEG

[MrAsiansunite]

The Best part is 51:27

[tubethechannel]

Some idiots I know would say what he does is spoon feeding.

But I say this is real teaching. Wow!

[aandreya]

amazing. in 35min not 1 exuasion. we had 2h for four. ser. and all I have written down are exuasions and I have no idea, what f.s. are or how to use them or how to calculate them.

[uedikoz]

Highlight of the vid has to be 18:12 - 18:24

[acatisfinetoowut]

I have a partial differential equations final tomorrow. I'll be watching his videos over and over again.

Fourier and Z-Transform are the bane of my existence...

[champignones]

@acatisfinetoowut Fourier series and transform was my favorite subject in the math curse i did on my engineering university, thou i wont use it as much it was really interesting to see all the different applications it have.

[guoyx]

really a great lecture!

[gomunkul]

Great lecturer !

awful handwriting..

[KoronofHearts]

@gomunkul good sign of a teacher/doctor/engineer

[slaouini]

Oh my goodness! This guy is so awesome, its almost weird seeing a professor who speaks such clear english and is so engaging... it would be impossible to fall asleep :)

[craterflakes]

@slaouini you're underestimating the average college student's ability to get bored/fall asleep :P

[thefigago10]

that s what we call the real GNU ,,, thaks for the help

[sephiroth671]

the dog and his equations

[retardedshrimp]

47min where the video really starts: math coming in:)

[Libyan606]

it's a gread Course.

[daviddu35]

Thanks so much for uploading. Is there a e-version of the lecture notes available? I tried to register on their website, but as not being a student, I cannot access the handouts there. Any help is appreciated!

[MinGophers]

51:31 WIN

[samlyonfr]

tthanks!

[litronix]

si estuviera en español

:`(

[joeybenn]

Does anyone know what book is used for this class?

[annie14411]

God only if we had lectures like him in England, he is fantastic. thank-u for posting

[mandolinic]

He' a good lecturer, but he's really limited by the available technology. I find it astonishing that a modern university anywhere is still using chalk instead of Powerpoint!

[DestinyQx]

@mandolinic chalk is usually better than powerpoint hands down, chalk is like an intellectual improv performance, it's natural and unique, and if the prof is great, it can be interactive & inspiring, but powerpoint lectures often are standard, rigid, uninspiring

[tesseraktik]

@DestinyQx Indeed, lecturers that use PP tend to have a hard time responding to students' questions and comments. Furthermore, the time one spends writing one's calculations on the blackboard can be used to explain in detail what it is one is doing (and give students time to take notes), whereas such explanations tend to get zipped past in PP-presentations. Also, seeing one's professor practice what he/she teaches is helpful to many students. I'm sure one can do good PP:s, but it's rare.

[c00kiemonsters]

The lecture actually starts at 17:15 for those that want to actually here the relevant stuff

[FallofDarkness55]

@c00kiemonsters thanks for the blue button so that i can skip through the boring irrelevant stuff.

[rocksparadox]

@c00kiemonsters hear hear.. double actually...

[onurbaris]

mlg?

[excite236]

1: 35 damn the class is 90 percent asians

[zerroffff]

@excite236 so does that bother you ?

[excite236]

@zerroffff ridiculas... do you normaly think negative? ofcourse not its just a fact i noticed...

[zerroffff]

@excite236 then what do you mean by "damn"? You could have said "wow"

[maijib2009]

holly cow, this is super super video, clear picture and good sound.

The prof. not boring, he is speaking fast, loud and clear.

Thank you so very much.

[kevinatucla]

If I had this teacher of all of my math and physics and chemistry classes I would be a damn rich engineer by now and not a UCLA graduate in International Devlopment Studies Bullcrap that has only caused me to be in debt for $25,000 and nothing else.

This teacher is fantastic.

[Ayplus]

Where Laplace. . .even Euler maybe

[FrankRizzo6662]

I distribute my Length across multiple women

[caesiume]

LOL!!

[Iamallthatisman08]

lawl

[onurbaris]

+rep emeğine sağlık dayı

[noobletastic4]

@onurbaris lol mlg?

[luzzie9]

Great to see the Fourier developed with some rigor. Osgood is first-class but he seems wasted on a course like this. He should be teaching something like Advanced Lebesque Theory, but there is no truth in the rumor that he is planning a course in Conversational French.

[twentyflights]

i've had a decent amount of first-rate professors teach sophomore, even freshman, level classes. so goes the university system. i think it's awesome for younger students to learn from such great minds.

at my university, one of the foremost minds in M-Theory occasionally teaches the first course in mechanical physics. that said, he also takes the bus to and from Central LA to get to campus :P

[Naam19]

@barcodekillers You must be Einstein to understand everything fast enough just by your own with no help at all...

I do agree though that the help is sometime too expensive.

This guy is good.

[bbqltw]

what about labs?

[dankheads]

If you are that serious about that which you speak, i do not believe you would be asking such questions. It is possible to follow the path of wolfram if you are indeed a prodigy.

[imaasac]

is this BS course or masters??

[mathproof]

I thought that Dr. Osgood said that it was a graduate course. Of course, that need not be the case. Since it is for engineers, it would be equivalent to a senior level undergraduate class.

[ut1880h]

I like him a lot better than MIT's Diff.Eq. lecturer who is monotonous and boring. Osgood is a natural speed freek which I like. The pace keeps your brain moving instead of nodding into la la land.

[mathproof]

How do you get the video content for the MIT openware classes? I just want to stream video like this course.

[gjack80]

what a stuck-up person....they may try to copy MIT, but Stanford, you're no MIT!

show some humility..!!

(i have no affiliation with MIT)

[johnmair]

take a chill pill

[leocmen]

Dear Master Osgood,

I just have to thank you for the great job you did in this course.

Very nice, clear, and understandable.

Made everything easy.

Best Regards

[redunndant]

oh man this is gonna be one hell of a night for me..

[theonlyone536]

close your eyes

listen to his voice ........

It's Kevin Nealon !!!

pazzaa nealonites !!

[tonehog]

Not Kevin Nealon... Jeff Goldblum.

[xinliw]

I'm a student from math. I prefer professors to use chalk and blackboard(or markers and white board). I hate projectors! Prof. Brad's lecture is so great~

[deepakshimishra]

This guy's good.

I'm a grade 12 student. And I've understood a LOT of it!! :)

[robertodisco]

Planch the camiss

[fabbio8888]

42:10 why does he say it's the only formula? Thanks!

[jalalmalo]

I think he meant uniform motion but I'm not a mathematian

[djkeogan]

It seems like the course page, referenced by the link in the video comment, no longer has the course materials available to download. The are at the "Stanford Engineering Everywhere" site. Seems like YouTube does not allow me to post a URL in a comment so you will have to google the above. Hope this helps.

[bloodberry3380]

nice :D

online lesson *put his book away and enjoy the clip*

[slack7639]

This is fantastic! I just wonder why blackboard and chalk is still used today. Distracting to me. Why not a big screen LCD, point and click, and the pre-typed in material prints out at the rate of handwriting, which might be cool, then you could make these notes available online later, or even before the lecture for review.

[ziqueez]

i think writing on chalk board encourages students to write the stuff down, while with screens and projectors the material is practically always downloadable elsewhere and makes the students much more passive. I think it's better to encourage writing stuff down on complex subjects (math etc), since you tend to process the information at the same time, but with simple subjects where you don't need to understand as much as remember (eg history) writing it down doesn't serve too much of a purpose

[slack7639]

That's a good point, yes. Knowledge enters through the fingertips. Now I'm thinking, what if the background info, and formulas, were given in electronic format on a screen or slide, neatly ordered, but then to work a problem, only that part is done by hand. I think it might be more productive.

[asciiguy1]

costly to implement in a bunch of classrooms -- and difficult to convince all profs to use newer technologies, and learn how to use them right. even projectors can be major distractions for some profs during lectures when they're not sure what buttons to press to say, get the screen to move up or down, move the projector up or down, do this to connect a laptop which has such and such OS to the projector... and so on.

[avolynskiy]

These lectures are amazing!!! Thank You!

[popeurbanjustinian]

thanks stanford

[0553932057]

EE is the hardest major EVErrrr .

[Entertainmentwf]

@0553932057 there are way harder ones... try theoretical physics or pure mathematics or theoretical computer science... notorious for the history of suicides and sad stories in their foundations.

[tobeyanonymous]

Thank you for putting this course online!

[ncc1701zzz]

Great course. Any way to get the book commented in lecture 1? Thanks.

[rammps1982]

OMG.... What an energic man is this? I simply loved this lecture. Thanks

[marshkid1]

can't believe they still use chalk boards at stanford.... get a projector and powerpoint.

[roygbiv330]

divide this into several pieces, add an index to each.

[mihir89rd]

cant he cut to the chase....

he repeats the point many times over

[metabog]

Man it's so great that they have the lectures for everyone to download!

[candoyo]

yeah.. turn HQ off then skip .. that works

[blackranger00]

just got it to work in HQ mode

[youbananabuoy]

To skip the course intro go to 16:30

[blackranger00]

didn't work for me... :(

[csmaster65]

New YouTube player is shit.

[artistdigital]

@youbananabuoy

Thnkx!!

[pinkyanys]

please upload this lecture again....

[baconquiche]

Excellent ground work. Just like being a physics undergraduate again. Thanks Professor Osgood!

[asclepeos]

PLEASE re-upload?

[baconquiche]

Hi, check out the comment by eschdoom below - it works ... cheers

[eschdoom]

if anyone else is having the problem i had watching this (video no longer available): copy the url (underneath the description) into the address bar and append: &fmt=18

[411sponge]

Fantastic job Dr. Osgood!! I would also like to thank Stanford University for putting these lectures online! VERY helpful!! :)

[fagottist]

ihave jsut learned to do fourier analysis on occiloscope traces for my advanced higher project.

it's good fun

[Hairysteve20]

Professor Osgood manages to get his point across in a very clear way. When I was at secondary school (High school in the states) my technical engineering teacher was able to communicate basic physics and maths in a similar way. By referring to the real world.

My maths lecturers at University were never as good as Professor Osgood and never had that knack. It's not an easy thing to do.

[mehedi29]

Though I m not gonna do it but i can think not to go uni for Fourier Lectures

[senthil1]

I know you dont want to be bothered by the world, but where are the course notes that you speak of here. Just post it online and we'll leave you alone. - Signed The World

[bimboblacky]

Doctor Osgood, that is EXACTLY what part of this videotaping is, competition with the Massachvsettes Institvte of Technology (sic). ;) Yale University also has 7 courses up on OpenCourseWare format AS WELL as of the time of this writing.

[Athrodios]

Thanks Stanford :)

[TheBlackFridays]

the chalk on the board is chafing my eardrums. otherwise, very well done.

[noobmartin]

This is a great complement to my studies of Fourier series/transforms in a course I'm taking.

[kjayeyi]

purdue here..EE is fun.

[yuluis]

i can quit my job now and have life long learning.

[omotigre2004]

Good work for engineering :)

[blackout314]

great idea. good work stanford

[quatari]

Thanks!

[drexell0680]

This is a fantastic idea, thank you Stanford.