Recent content by karen03grae

Hey, thanks guys! I'm going to check those out today at the library. I have to take my EE test this friday.

I'm not. That question came from my mechanical engineering lab. In that class we are given a broad overview of everything including DSP. I just found out when I went to my professor that my question was too deep for the answer expected. So that's over. I was wondering if anyone knows of a good...

Maybe would determining a transfer function help?

This is a homework question. However, here is what I have thought about. Here is my formula for the output filtered signal: Yk = a*Uk + (1-a)Yk-1 Where "a" is coeffiecient that "weights" the current value of the unfiltered signal. And Yk-1 is the previous output signal. For some reason...

I got into the course because that is how our university sets up its math track. Cal 1, 2, 3, and lastly differential equations. That's all we need to take but I am going to take Linear Algebra and Fourier Series and Wavelets (because F.S.W. fascinates me); actually to make an "A" in diff.eq...

Thanks so much for your reply. I wrote down your definition of eigenvectors. But I'm not to familiar with linear transformations. Are eigenvectors perpendicular? I kind of understand them to be like axes that are scaled when a linear transformation occurs. When I have a system of...

Eigenvectors + Me= ?AHHHHHHHHHHH I am really trying to understand Eigenvectors but you have to understand that my prof. only teaches about HOW to get the eigenvalues/vectors and how to use then to solve diff. eqs. So far I can find the eigenvalues of a 2x2 and from there I can get the...

I thought I'd update everyone on how my marketable summer class really turned out to be. I'm drafting for a real engineering company now! Hurrayyyy! No more retail jobs. And I got a 90/100 on my last differential equations test and a 90/100 on my last statics class. But I'm not sure how much...

Okay I asked my teacher and he told that the chosen interval was probably just random.

yeah, i thought about that...but even so why can't x be -1 or 1...or bigger than 1? y(x)= 3*y^2/3*x. And how did they get that interval.

Ok guys, this is not a difficult problem at all (ch 1)...sorry to disappoint you. But after 3 lectures I still can't answer parts of these questions -and I have the solution's manual :( Here they go: Does the initial value problem y' =3*y^2/3 , y(0)=10^-7 have an unique solution in...

Opps, okay the work done is independent of the path taken. And Stokes' theorem says that \int \int_S \ curl\vec{F}\cdot d\vec{S} = \int_c\vec{F}\cdot d\vec{r} So if we take the cross product of \nabla and \vec{F} (Which by the way, isn't "del" an operator? How is it that we can cross...

A conservative force is independent of the path taken

Wow how exciting! congrats!

My question: Show that \vec{F} is a conservative vector field then find a potential function "f" such that \vec{F} =\nabla f . \vec{F} (x,y) = sin(y)\vec{i} + (xcos(y) + sin(y))\vec{j} I worked the problem and found out that the force was conservative and I found the potential...