Recent content by MrAlbot

exactly! that makes a lot more sense now, but I got the point the first time. Do you know where can I find the best place to learn the derivation of Fourier transform? Right now I am learning from khan academy once I'm a little short on time but its being a pleasant trip over linear algebra. How...

Thanks a lot guys! I just started to study Linear Algebra from the beginning because I wasn't understanding anything you were saying, but only now I can to see how usefull your comments were! Algebra is beautifull ...Thanks a lot again!

Hello guys, is there any way someone can explain to me in resume what eigen values and eigenvectors are because I don't really recall this theme from linear algebra, and I'm not getting intuition on where does Fourier transform comes from. my teacher wrote: A\overline{v} = λ\overline{v}...

Hello, This is a sequence of my two last posts on this theme(i'm clearly messing this up in my head) and I got no clarifying answer on neither, so I'm trying here in the homework threads! Help if you know 100% sure otherwise its just going to get more and more confusing in my head because...

Hello, I've been trying to understand how the fact of grounding a conductor affects its charge distribution. So, for example, let's assume there are three spherical shells with radius R1 R2 and R3. Supose I charge the R1 shell with q and the R3 shell with -q , and I connect the R2 shell to...

I'm trying to understand why in my Signals and Systems they use X(jw) (and X[e^jw] in disrete signals) and in my telecomunications class they use X(f) and what does it change, and why can they change that. I have no problem going into deep mathematics if that means understanding it. I feel like...

Hey guys! if anyone can help me I guess it is you! :) I'm trying to find the Fourier Series demonstration to continuous and periodic functions. I don't understand why people keep using X(jw) and X[e^jw] and even sometimes X(w) and X(f) If anyone can help me I'm really not understanding that...

Wow, sounds really perceptible, so, (obviously, I guess) Fourier transform is a "morphism"( and there is structure preservation otherwise you wouldn't be able to trace back where you came from? and be able not to lose information?), once you can just transform it back to the same place again...

@pwsnafu Oh boy, I really have to learn a lot of math to understand that Pontryagin duality ^^ I just had my first contact with abelian groups and subgroups and isomorphism, endomorphism and homomorphism (alien life to me) Can you give me a hand with a quick understanding what that morphism is...

Thanks a lot for the responses! But... One thing I realize is that when you use the Fourier series on a periodic signal in continuous time, you end up having the coeficients and the exponentials and you can perfectly work with just using the coefficients due to the superposition property of the...

Hello Physics Forums community, I'm afraid I really need a hand in understanding Why are the Fourier Series for continuous and periodic signals using diferent notation of the Fourier Series for discrete and periodic Signals. I have been following the book " Signals and Systems " by Alan V...

Homework Statement so.. I'm taking a electrotechnical engeneering at university and now I'm talking a lot about telecomunitactions and i find myself working with Fourier transforms and laplace transforms, and majorly, the e^(jx)... and this last one shakes up my concept of the usual number...