I'm assuming the previewer is running with the same script, if that's the case, then the result is that it shows a code block starting at "myContext`</code>" and running onwards
can someone please try this demo CDF, I am about to submit it for WRI demo site. Just wanted someone to try it just to make sure it looks and runs ok for them. Here is the link 12000.org/my_notes/mma_demos/spring_pendulum_type_1/index.htm You can run the CDF from the web page or download it and run it locally. If anything does not look right and not clear, so I can fix it before sending it. thanks
@belisarius, Ok, will add more description in the detailed section. The angular speed is the initial omega you give to the top pendulum,. While the 'speed' is meant for the initial vertical displacement of the top spring. The top spring can swing as well as move up and down.
@belisarius, yes. for the angular velocity, it is rad/sec, while for the 'initial speed' it is meter per second. all units in SI
@belisarius, I thought actually of removing the 'initital speed' option, and just leave the 'initial angular velocity' option. May be I should have done this. Too many options can be confusing, but more flexiable
@belisarius, ok, so you think sliding to the right should zoom in? For me it seems moving the slider to the right, mean larger view, and to the left means smaller area? Would that not be more natural?
@belisarius, humm did not notice this. But it might have to do with the aspect ratio I am using. It is not 1. Needed to get the display to fit all the space there, so no space is wasted, and for this I adjust the aspect ratio as well as the image size. If I use automatic aspect ratio, will not be able to fill all the space
@belisarius, btw, I can't make a test case for resonance, since this is free moving system. There is not external force that I can make it act with frequency the same as the natural frequency of the spring/mass system.
@belisarius, this was hard enough for me just the way it is actually. Since the top spring has mass. Never done before with spring that has mass. Always assumed spring is massless. This was tricky for me. I hope the physics is correct. The report is right there on the page. I write the report now on separate document. Much easier than writing it in the demo itself.
This is a spin off/follow up to Can 2D and 3D plots be combined so that the 2D plot is the bottom surface of the 3D plot boundary? ...
Following Sjoerd's method, I did this:
image = Plot[x^2, {x, -2, 2}, PlotStyle -> {Thick, Black}];
Show[Graphics3D[{EdgeForm[], Texture[image],
Polygon[{{-...
In geospace, how do I find coordinates of the vertices of an equilateral triangle whose vertices have integral coordinates? How do I tell Mathematica to do that?
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@R.M so did I. then I got an Android phone. it's really nice, but every time the desktop program tries to update it, it first switches off the phone, then complains it's not on.
once, it did not do that: instead, it told me to go to somewhere and set it to "mass storage mode". well I did, I could not set anything to anything: it just told me what mode it was in. then it resumed rebooting.
@acl hahaha! sounds like me... I have an android phone, but everything else I own (and university owned) is an apple product. Right now, on my desk, I have about 9 or so different apple products
@R.M well, it's perfectly good until now, but I just don't understand how it can be that they missed this. it's not like I am the only one to have this problem. oh well
I have the following function
$$V(r) = \sum_{i=1}^N 4 \epsilon_i \left(\frac{\sigma_i^{12}}{||r-r_{0i}||^{12}}-\frac{\sigma_i^{6}}{||r-r_{0i}||^{6}}\right)$$
which -for those interested- corresponds to a sum of Lennard-Jones potentials, with the following real life set of parameters
sig = {0.3...
@F'x To answer the question: many of us mods are still contemplating this. Though the workload isn't as heavy as on SO, the obligation to check in a few times per day is having an impact on other aspects of life. The perks on the other hand (capability to always correct spelling errors in comments) are seductive...
Ok, I restarted my browser and I'm now hit by the outages too... no mathjax and no editor buttons. I guess I was still using the cached sprites and scripts earlier
Status Alert: Hey, all. We're aware of the trouble people are having with our site. We're working on it.
This is a spin off/follow up to Can 2D and 3D plots be combined so that the 2D plot is the bottom surface of the 3D plot boundary? ...
Following Sjoerd's method, I did this:
image = Plot[x^2, {x, -2, 2}, PlotStyle -> {Thick, Black}];
Show[Graphics3D[{EdgeForm[], Texture[image],
Polygon[{{-...
In geospace, how do I find coordinates of the vertices of an equilateral triangle whose vertices have integral coordinates? How do I tell Mathematica to do that?
The 2012 Community Moderator Election is now underway!
Community moderator elections have three phases:
Nomination phase
Primary phase
Election phase
Most elections take between two and three weeks, but this depends on how many candidates there are.
Please visit the official election page a...
I have the following function
$$V(r) = \sum_{i=1}^N 4 \epsilon_i \left(\frac{\sigma_i^{12}}{||r-r_{0i}||^{12}}-\frac{\sigma_i^{6}}{||r-r_{0i}||^{6}}\right)$$
which -for those interested- corresponds to a sum of Lennard-Jones potentials, with the following real life set of parameters
sig = {0.3...
