Well if you want to change the domain over which the plot is made, you just need to change the limits
So this will show a cube that is 6x6x6 centered at (0,0,0)
ContourPlot3D[f(x,y,z)==0,{x,-3,3},{y,-3,3},{z,-3,3}]
This will show a larger region that is a 8x8x8 cube centered at...
I solved it (after some friends pointed out some simple mistakes I was making).
For the record, here is how I did it. I will use spherical coordinates with the z-axis aligned with \vec{y}
\int d\vec{x} \frac{e^{-x^2}}{\left| \vec{x} - \vec{y}\right|} = \int_0^{2 \pi} d\theta...
Let me know if you have trouble, but they worked for me.
In general, I find Mathematica's greatest strength for a beginner is the documentation. The documentation is mostly just a bunch of examples. Check it out. I didn't know about ContourPlot3D until I checked the documentation. The way I...
So I believe that it will not be as simple as finding a table with elements and temperatures but it is possible that you could make sure a table with some assumptions.
First off, do you know what a plasma is? In short a gas becomes a plasma when electron(s) are removed from the nucleus. The...
If you are still interested in this problem maybe I could help. I have spent the last few weeks working with the boltzmann and fokker-planck collision operators. I take from your question that you are solving the collisional boltzmann equation and are having a hard time numerically solving the...
That is a good question. I had never actually used to visualize 3D surfaces until now. Nice idea.
Here are some example bits of script:
ContourPlot3D[6 x + 2 y + 3 z == 6, {x, -3, 3}, {y, -3, 3}, {z, -3, 3}]
ContourPlot3D[x^2 + y^2 + z^2 - 4==0 , {x, -3, 3}, {y, -3, 3}, {z, -3, 3}]
I choose...
So I have come across this integral identity in Krall's Principles of Plasma Physics (right after equ. 6.4.4 in the 1st edition) and I have not been able to show the identity is true. The reason that I would like to understand the integral is that I am trying to solve a similar problem to the...
Thank you for your help. I found a reference that give essentially the same information but might be helpful to someone else who stumbles upon this.
Molecular Spectra and Molecular Structure, Vol I by Herzberg. The appendix has a list of electronic structures and provides an explanation of...
Thank you gabriels for the fast reply. I have a few follow up questions. If you could recommend a reference that uses this notation that might be easier then answering my questions. Either way is fine by me.
From what I have read it makes sense that the X would denote the ground state but...
Hello,
I am interested in the electronic states of the N2 molecule. Now it is a homonuclear diatomic molecule and http://en.wikipedia.org/wiki/Molecular_term_symbol" [Broken]) but I do not understand what the Latin letters before the molecular term symbols mean. Here are some of the states...
does this phenomenon occur no matter how much water you put in the water bottle? I feel like there but be a certain amount of water where this phenomenon would be more pronounced.
I haven't thought about your problem long and I am not positive I understand exactly the phenomenon that is...
Ah ok good. That is what I had figured. I was later able to reason that my scalar field must be zero everywhere since it would correspond with charges. So it is good that you pointed it out because now I know I was thinking about it correctly. Thank you.
I believe what you are referring is the E-field in the loop. The E that is responsible for the current. But I am not interested in the inside of the current loop. Maybe I am misunderstanding what you are suggesting but I do not feel like it would produce the E-field in the regions about the...
I am trying to calculate the E-field from a varying B-field. The B-field is from a current loop.
\vec{B}(\vec{r},t)=\vec{B_{0}}(\vec{r})Sin(\omega t)
where \vec{B_{0}}= http://www.netdenizen.com/emagnet/offaxis/iloopoffaxis.htm"
Now since B is varying with time there should be an electric...
thank you for your help since the suggestion to do a google search lead me to an article which states "For bulk silver a value of 1 / τ = 2.4 × 10^13 s− 1, is the common text book value used to fit the plasmons resonance near 400 nm." Well this reminded me that the plasma frequency depends on...
Yeah I have searched google. My only problem is that I have seen values that range from 1300 THz to 24 THz. To just have a value that is within an order of magnitude would be good. Thanks for the reply
Does anyone know where I can find measured values for the plasma frequency of bulk silver? I would like them to be for light in the Terahertz range. I have looked in all type of book of optical constants and I have searched many different articles. Just a suggestion of where to look would be...
I just want to start off by saying thank you for your interest and help. I will try to clarify the best I can but sometimes I have a hard time explaining what I am doing in words.
what exactly do you mean by model?
I attached a diagram of the geometry. The grating is periodic in the...
EDIT: Now that I have thought more I suppose this problem is a classical problem and should therefore be moved to that forum. Sorry for the mistake. Can this be moved?
Hi
I am working on a simulation trying to model light traveling through a periodic grating with subwavelength apertures. I...
I am not an expert by any means on this subject but I would think that the answer depends on the definition of parallel. For example, I believe Euclid defined two lines to be parallel if they never intersect. If we can think of this in a similar way then it seems that as long at the two objects...
I am currently using the program OOPIC Pro to run some simulations. I am suppose to import the data into Matlab to analysis it. The only problem is that the person that I am working with has gone to China for three weeks and I didn't have him show me how to do it. I would really like to make...