Ch1 Pr 14: The Wave Equation
19:49
3 жыл бұрын
Пікірлер
@RohitDattaPeravala
@RohitDattaPeravala 6 күн бұрын
Thank you 👏
@roev24
@roev24 7 күн бұрын
Wonderful and clear explanation! Thank you so much!
@BonganiMlamla-ie7qv
@BonganiMlamla-ie7qv 12 күн бұрын
till today this is the best
@harleyslocum917
@harleyslocum917 13 күн бұрын
How do you do this? I try and try but i cannot....
@AZULA69
@AZULA69 14 күн бұрын
A high class teacher
@ungarlinski7965
@ungarlinski7965 19 күн бұрын
Best proof I've seen of why academics are cowards. Yeah, I want to be just like you: unhealthy, weak, and creepy, impressing children, not able to earn a living on your own.
@ungarlinski7965
@ungarlinski7965 19 күн бұрын
@11:50 For all x in the domain of f(x).
@namelessone3915
@namelessone3915 23 күн бұрын
An easier way to calculate x^4-y^4 would be to factorise it to (x^2+y^2)(x^2-y^2).
@Rene-uz3eb
@Rene-uz3eb Ай бұрын
Would be great if they brought together a good oceanographer like him with a atmospheric physicist to get the whole picture
@tonynguyen8527
@tonynguyen8527 Ай бұрын
Thanks for adding the subtitles!
@GoogleUser-ee8ro
@GoogleUser-ee8ro Ай бұрын
these videos come in handy because i am learning CIF and residual theorem right now
@KarelDjoni-g8f
@KarelDjoni-g8f 2 ай бұрын
Thank you for the lesson very instructive
@kilogods
@kilogods 2 ай бұрын
58:10 goldbach requires proving the existence of 2 primes that add to 2z, not finding them. The professor has only proven that you cannot find them, not that they don’t exist.
@TillerSeeker
@TillerSeeker 28 күн бұрын
I would choose to put the matter this way: "Existence in principle" is not necessarily the same as "existence in fact." Numbers can exist in principle irrespective of whether or not those same numbers can somehow be determined, written down, or otherwise computed. In fact, I believe that it's safe to say (as I believe that the Professor is arguing) that only a miniscule fraction of the infinitude of whole numbers can actually be written down and that the probablity of a number in the infinite universe of possible numbers being capable of being written down is effectively zero.
@ArseniiTrofimov
@ArseniiTrofimov 3 ай бұрын
1:45 how do you know that the last eigenvalue is 3?
@LukeFlavel
@LukeFlavel 12 күн бұрын
Because the sum of the eigenvalues is equal to the trace of the matrix (the sum of a matrix's diagonal components, which in this case is 2+1+1)
@arpanmukherjee8172
@arpanmukherjee8172 3 ай бұрын
Is the converse true?
@gloriaozias5026
@gloriaozias5026 3 ай бұрын
Any Malawians??
@costainmukangwa9942
@costainmukangwa9942 3 ай бұрын
Thank you for opening my brain 🧠🙏
@rainsmush
@rainsmush 3 ай бұрын
this is well explained thanks for clearing this topic
@jackhuang2279
@jackhuang2279 4 ай бұрын
Hi, very nice video as always from the UNSW maths department!!!!!!11
@kaursingh637
@kaursingh637 4 ай бұрын
EXCELLENT LECTURE -WHICH COUNTRY ? -AMARJIT -INDIA
@GoogleUser-ee8ro
@GoogleUser-ee8ro 4 ай бұрын
it is not complete play list is it? unless 2069 also has a calculus component like 1141 and 1241?
@adjoaadjavon6766
@adjoaadjavon6766 4 ай бұрын
Has video contents please put it up
@adjoaadjavon6766
@adjoaadjavon6766 4 ай бұрын
Has video contents please put it up
@VenusianJungles
@VenusianJungles 5 ай бұрын
z_n should be z_i in the formula right? The integral symbol would also more correctly be a contour I think. Either way thanks for all these lectures it is highly appreciated!
@LamondMwanza
@LamondMwanza 5 ай бұрын
Is it wrong to take Z=x + yi and simplify it?
@tendaidube-yw2qu
@tendaidube-yw2qu 5 ай бұрын
9years later and i still found this very helpful. thank you sir
@spring22dzb
@spring22dzb 5 ай бұрын
@spring22dzb
@spring22dzb 5 ай бұрын
.
@micahteiul
@micahteiul 5 ай бұрын
Thankyou so much❤🎉well explained and clear understandable
@VenusianJungles
@VenusianJungles 5 ай бұрын
Why isn't z bar analytic here?
@adefisanadedotun797
@adefisanadedotun797 5 ай бұрын
Much Appreciated
@GoogleUser-ee8ro
@GoogleUser-ee8ro 5 ай бұрын
interesting, never thought of the vertical lines along the surface of hyperboloid has the parametric function x=t, z=t y=1/-1, when you draw the hyperboloid on maple or matlab, it never grid that way.
@TymexComputing
@TymexComputing 5 ай бұрын
I am sorry but i didnt get where did the 1728 constant emerge? I know where did the 1729 get from (its just 1728 + 1) but where do the 1728 come from? Please dont post replies about "integer complexity" of (1+1+1) * (1+1) and so on :D i know that its1728 == (3^3) * (2^6) but i just didnt hear the origin in the Gaussian resampling and multi dimensional rudimentation.
@TymexComputing
@TymexComputing 5 ай бұрын
20:40 (1/2) i got a little different output in my classical sigma-delta calculator for these 2 random numbers ... 8.5397342226735670654635508695466 [ omitted digits my calculator didnt show] - maybe i should change the range of integration in the exponent part... I have heard about the limit O(NlogN) a long time ago, showed in signal processing classess with DFT and Parseval (Parceval?) power preservation theorem - thanks that in practical you made it twice as fast :). Usually when people face that big integers they are looking for some other thing than a multiplication or they can suffice with some fast HW (fpga?) high order (2kbit 4kbit 256kbit) implementation for security reasons :) Regarding Kolmogorov - at that time in the soviet (USSR/CCCP) there were many scientist showing work proving the state of the party either in agriculture or in biology that nobody could deny - i am sure that Kolmogorov could have also stated that O(n^2) is the slowest of multiplication algorithms as children can do it that way and nobody would bother to object :)
@LuckyLekeshili
@LuckyLekeshili 6 ай бұрын
try to improve on your steps to make it more simplifying
@HaymanotYohannes-ob3vc
@HaymanotYohannes-ob3vc 6 ай бұрын
Find the fifth roots of z=-1+i
@肖富安
@肖富安 6 ай бұрын
go find another job
@肖富安
@肖富安 6 ай бұрын
thanks very much you are getting better
@肖富安
@肖富安 6 ай бұрын
Even though your leading entry is not equal to 1 you still get same answer. No one will doing that like you
@肖富安
@肖富安 6 ай бұрын
you don't really to simplify that much it make student confused. you still can get the same answer in the end. Make sure don't do that next time.
@wessbrown7724
@wessbrown7724 6 ай бұрын
Suppose a group of 20 students are enrolled in one or more of the following courses: 8 in Algebra, 12 in Biology, and 11 in Chemistry. If 5 students are enrolled in all three courses, how many students are enrolled in at least one of these courses? help me with this please
@shubhamsharma_10b34
@shubhamsharma_10b34 6 ай бұрын
Thank you sir really help a lot
@Charky32
@Charky32 7 ай бұрын
what about c.) bruh
@americ1800
@americ1800 7 ай бұрын
Thanks fo' the help son!!
@GoogleUser-ee8ro
@GoogleUser-ee8ro 7 ай бұрын
so smartly solved