Can anyone recommend such software. I would like to be able to work with a three-dimensional x,y,z coordinate system using a computer program on a Macintosh to...
88
Paul Erlich <paul@...
emotionaljou...
Jan 23, 2003 12:28 am
... some of the best programs for these sorts of things are mathematica and matlab. these may be out of your budgetary range, but both have tons of great...
89
allenlubow@...
phi16
Jan 23, 2003 1:56 pm
Mathematica is a bit pricey but I wouldn't mind if it would allow me to do what I want. How difficult is the learning curve?...
90
Jon Perry
jon_perryuk
Jan 23, 2003 3:49 pm
'Mathematica is a bit pricey but I wouldn't mind if it would allow me to do what I want. How difficult is the learning curve?' Have a look at: ...
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Jon Perry
jon_perryuk
Feb 5, 2003 9:01 pm
Comments appreciated; http://www.users.globalnet.co.uk/~perry/maths/integraldrawing/integraldrawin g.htm Jon Perry perry@... ...
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Jon Perry
jon_perryuk
Feb 5, 2003 9:51 pm
'are you sure the conjecture doesn't require that all edges be straight lines?' They are all straight lines, but I think you are right in essence - the ...
93
Michelle
fruitworks1026
Mar 9, 2003 12:37 am
Hi all, I'm new to this group adn I'd to ask something about the mobius strip. If one were to cut along its equator is it true that it results in two twists...
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John Berglund
anisohedral
Mar 9, 2003 1:19 pm
Hi Michelle, Any time that you have an odd number of half twists the form has only one edge. If you cut any of these shapes down the middle, you add an extra...
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Michelle
fruitworks1026
Mar 9, 2003 7:09 pm
Thanks very much. Now I'm not so confused because there are 2 full twists, and 4 half twists. When i read on the net these two different numbers, I was...
96
rocky10019
Apr 6, 2003 6:54 pm
http://snowflakebentley.com/...
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nicholasshea
Apr 9, 2003 5:34 pm
Hi Polytopians i am new to this group - it looks great! On to my plea fro help... i am currently developing a program called TesselSphere which generates...
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John Berglund
anisohedral
Apr 9, 2003 9:46 pm
Hi, I looked at some pictures of it. It seems that each face of the icosahedron that is the underlying framework of this dome is divided into 192 equilateral...
99
nicholasshea
Apr 10, 2003 7:18 am
... icosahedron that is the underlying framework of this dome is divided into 192 equilateral triangles. These each have a triangular pyramid placed on it. I...
100
John Berglund
anisohedral
Apr 10, 2003 1:30 pm
Hi, What's Traicon and Alternate? I'm not familiar with your notation. I would like to play with your Tesselsphere program. As the icosahedron and dodecahedron...
101
nicholasshea
Apr 10, 2003 6:00 pm
Hi John I have uploaded a picture called 'frequency_16.gif' to the files area of this group which shows Alternate subdivision (class I). This screenshot was...
102
allenlubow@...
phi16
Apr 10, 2003 6:09 pm
I enjoyed looking at your images very much, Nicholas. I'd be interested in Beta testing your program when available. Allen Lubow...
103
Nicholas Shea
nicholasshea
Apr 11, 2003 6:00 am
... Thanks for your interest Allen. The TesselSphere web site is in progress so keep an eye out for new developments. Right now I'm working on the geodesic...
104
Michelle
fruitworks1026
Apr 12, 2003 10:01 pm
Hi guys, here's two math problem that I'd like to know the answer and the process for solving! Question is: Name the largest natural number that cannot be...
105
dan duddy
polychoron
Apr 13, 2003 4:53 am
A friend from another geometry list made this Pentakis Dodecahedron Earth model. -Dan __________________________________________________ Do you Yahoo!? Yahoo!...
106
Paul Erlich
emotionaljou...
Apr 15, 2003 12:10 am
... that was me. if you'd like to have a three-dimensional version of this, go to http://magliery.com/Zome/rhombiworld/ and print, cut, fold, and tape! -paul...
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John Berglund
anisohedral
Apr 15, 2003 1:23 pm
Hi all, I just discovered how to put Geometer's sketchpad on the net. I put up some pages of stuff that was new to me. Do any of you know if things like this...
108
Paul Hildebrandt
paul@...
Apr 15, 2003 11:14 pm
B.t.w., Walt Venable just told me he's working on a book of dome structures you can build in Zome. We'll try to get some images (maybe even step-by-step ...
109
Nicholas Shea
nicholasshea
Apr 22, 2003 7:25 am
I found a way to make Class II (triacon) subdivsion using Class I (alternate). The method uses the Icosahedral net. The lowest Frequnecy for Class II is V=2....
110
John Berglund
anisohedral
Apr 22, 2003 1:27 pm
This is fun. In general you can pick any two grid points on isogonal grid paper to be the endpoints of an edge of a triangle for icosahedra, tetrahedra, or...
111
Nicholas Shea
nicholasshea
Apr 23, 2003 5:16 am
Hi John, That's very interesting. I will study the arrangement and see if I can figure it out. The manner in which an isogonal grid links platonic solids...
112
polybisep
Apr 23, 2003 1:28 pm
... I just joined this group. I've been building small models of geodesic domes for many years but have to admit that much of the math is still over my head....
113
Nicholas Shea
nicholasshea
Apr 23, 2003 6:29 pm
The results of my eforts in reconstructing this geodesic sphere can be viewed at url: http://www.geocities.com/nicholasshea/tesselsphere/geodesic module.html ...
114
Nicholas Shea
nicholasshea
Apr 24, 2003 5:45 am
... Math isn't my strong point either: it's the notation I find difficult. ... That's a very leading question! Nigel Pennick in his book "Sacred Geometry"...
115
Mike Dubbeld
miike@...
Apr 24, 2003 7:37 am
I don't know how you got my email address but you basically could not have picked a better person to talk about what you are talking about below. :) ... From:...
116
allenlubow@...
phi16
Apr 24, 2003 3:33 pm
Wow! Nicholas, what an accomplishment. What a beautiful set of images you've created. Thank you for the preview. Allen Lubow...
