If I have a convolution of two variables, say x * y, and I take the natural logarithm of this operation, ln(x*y), do the same properties of logarithms apply?
So, does ln(x*y) = ln(x)+ln(y) ?
I should have posed the question in a better way... Based on the research I've done I think Simpson's rule is more efficient. I was initially trying to use the quad function:
quad(Cp, 0, t(1))
? Error using ==> fcnchk at 108
FUN must be a function, a valid string expression, or an inline...
I have a data curve with discrete time points that I imported into MATLAB. The x-axis is an array named t:
t =
1.0e+003 *
0.0319
0.0505
0.0851
0.1037
0.1356
0.1648
0.2021
0.2313
0.3616
0.5823
0.8880
1.1778
1.4996...
If it's any consolation, I failed a couple of the assignments and one midterm in my first year physics courses. Now, well I'm a month away from a Master's degree and I've been accepted to start a PhD program. (in physics)
It is rough at times, but just keep at it until it sinks in.
If it's any consolation to the original poster, I don't know a single medical physics graduate that hasn't found a job in the field somewhere. I'm in Canada, however, so maybe the climate is different here.
Just an update:
I contacted my colleague and he agreed to try and send in an erratum to the journal. The journal responded by saying that the publisher would only publish an erratum if it was the publisher's fault. In this case, it was the corresponding that were in error, so they won't...
I've thought of similar scenarios. I don't want the journal to recall all copies of the article; that's ridiculous. But a correction can be submitted and associated with the article, just like an errata would be. But my professor doesn't seem to care and I'm not sure if there's anything I can do...
Well I spoke to my previous adviser some time ago. The paper lists my former colleague as first author, my adviser as the 2nd, and another collaborator as 3rd. My adviser states that he agrees I made a contribution, but is unsure as to whether it warrants co-authorship or simply an...
I'm finishing my MSc physics degree this year at a small university in Canada. It's been a tough road, and in my undergrad and graduate courses I've only been able to muster a B average. I applied to two PhD programs for the fall and so far have been rejected by one due to concerns about my GPA...
A gas composed of hydrogen atoms in the ground state is bombarded with electrons of energy 12.5eV.
a) What wavelengths emitted can we expect to observe?
b) If we replaced the incident electrons with incident photons of the same energy, what would happen?
I know the answers to both...
You need to account for the energy stored in the spring. it is given by
\frac{1}{2} k x^2
where k is the spring constant and x is the distance from the equilibrium position.
I recently applied to some grad schools for a PhD program and I was notified by one particular school that while my marks were under their admission requirements, they recognize that I have valuable background experience which may allow me to succeed and that they would circulate my file to...