Hi all. I have a biochem test tomorrow, and would like some help. I went through the practice exam that was given to us, and from past experience the real test and practice test tend to be very similar. Also, from past experience, I tend to get a couple of them wrong because I believe that I...
Homework Statement
Without computing A, find the bases for the 4 fundamental subspaces.
[1 0 0][1 2 3 4]
[6 1 0][0 1 2 3]=A=LU
[9 8 1][0 0 1 2]
Homework Equations
N/A
The Attempt at a Solution
There was an "example" in the book. It just showed the answers.
It was:
[1 0...
I have to do a LDL^{T} transform of a symmetrical matrix:
[2 -1 0]
[-1 2 -1]
[0 -1 2]
And, I'm just wondering if I have to do a row exchange, or something. I can't remember if the L matrix has to have the form
[x 0 0]
[x x 0]
[x x x]
where the x's are nonzero numbers...
Homework Statement
A block slides down a slope from point O with initial speed V. THe sliding coefficient, mu, brings the block to rest at time T. Using the ramp as the x-axis and the perpendicular as the y-axis, find T.
Homework Equations
F = ma
mu = mg sin(theta)
a=dv/dt
The...
Homework Statement
Homework Equations
The Attempt at a Solution
(3) I haven't been able to start this one at all.
(6) I got part a (+45º P-state). I tried to do b and I got [1+i, -i+1] which isn't a polarization state, so I'm not sure what to do with c or if there is some...
[SOLVED] Optics - Diffraction
Hi. I was given an extra credit problem in class to derive equations related to multiple slit diffraction. I was wondering if someone wouldn't mind looking over what I have so far, and pointing me in the next direction. Thank you!
Homework Statement
Homework...
Hello, first time poster. I'm in an optics class because I thought it would be fun, but I'm having a terrible time. And I didn't do so well on the first test. The second test is tomorrow and I want to do well on it. We were given a practice exam with 3 questions. I got two of them, but the third...