... Glad to help. It wasn't more than a couple hours' worth of work and it looks like a problem where GC could help a lot. We could have a labelled animated...
I recently got a question on surfaces of revolution. Just thought I'd forward my answer in case anybody else is interested. This is based on the Examples menu....
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Feb 3, 2006 9:29 am
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This is following the derivation in "Mechanics" by Arnold Sommerfeld (p. 87). I still haven't got the cycle quite right. It should go to the maximum amplitude...
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Feb 3, 2006 2:13 pm
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Feb 3, 2006 2:20 pm
792
I scanned in 4 pages on "The Simple Pendulum" from Sommerfeld's "Mechanics". These are high-resolution so they'll be legible. Also, my latest attempt for the...
I think I've fixed it so the slider always runs through the cycle correctly. Just had to adjust the range of the animation parameter by dividing by omega (I...
Just came across an easy-to-use approximation for the exact solution in my old Mechanics book (Symon, 3rd edition, p 215). This shows how the second-order...
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Feb 4, 2006 10:38 am
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Feb 4, 2006 10:41 am
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Feb 4, 2006 10:43 am
798
I cleaned up the file by putting the angular speeds in separate functions, one for the idealized version and one for the "exact" (which is approximated to the...
Two questions: (1) Short of plotting your own sphere with a variable center, is there any way to make the "points" GC plots in 3D a little smaller? As it is, ...
... Hello, I'm presuming you are using Graphing Calculator 3.5 on Mac OS X, since the ability to plot points in 3D by writing [1 1 1] as a column vector, for...
Ron- ... COOL!!! Gracias. ... I thought I'd try that, but yes, you're right, that does help. (While I have you on the line... [:-)] ... I will admit that I...
... Hold the control key down while dragging the mouse up and down to bring the model closer or move it farther from the "camera." ... Version 1.0 worked that...
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... Here's one way to do it. If you want to rotate around any axis other than the z-axis, you can't use cylindrical coordinates. But using parametric equations...
You can drag the red dot to change the shape of the 2D surface in the left pane and the 3D surface in the right pane will change to match. The revolution of...
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Feb 9, 2006 11:04 am
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Still experimenting with surfaces of revolution, and making them more interactive. Here you can drag the four points in the 2D pane and the 3D pane will show...
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Feb 11, 2006 2:09 pm
810
I am curious about how GC decides precisely what the step size should be for a parameter defined with a slider. It would seem that slider(a,b,N) has a step...
Is there any guide as to when files created using GC will be compatible cross-platform? Several of the files I have created recently in the OS X version of GC...
... The other significant parameter which is implicit is the width of the slider itself in screen pixels. I don't recall exactly, but I think it is about 75...
... Hello, The two features to avoid are writing 1. sin(a*x), a "is an element of" {1,2,3} Version 3.2 does not know how to graph that, and does not recognize...
... Ok, understood. ... Cool, couldn't ask for any more. I've become quite addicted to the sliders, so usability improvements in this area would be welcome. ...
