Category Archives: Animation

Dancing Pendulums Revisited

Posted on 12/04/2020 by dougaj4

I have previously posted on Dynamically Defined Dancing Pendulums, using the Strand7 FEA program to generate the motion of a series of pendulums of varying length.  I have now updated that video using the latest Beta version of the program (Rel … Continue reading →

Posted in Animation, Finite Element Analysis, Frame Analysis, Newton, Strand7 | Tagged , , , , , | Leave a comment

Arcs and arc-splines

Posted on 17/08/2018 by dougaj4

I have added two user defined functions (UDFs) to the IP2 spreadsheet to generate coordinates for a single  arc, or a series of arcs connected (if necessary) by straight lines.  The new version may be downloaded from: IP2.zip As an example … Continue reading →

Posted in Animation, Charts, Charts, Coordinate Geometry, Drawing, Excel, Maths, UDFs, VBA | Tagged , , , , , , | 1 Comment

A Loopy Link (and three more)

Posted on 23/08/2015 by dougaj4

For some reason Doug Glancy’s Excel Blog has escaped my attention up till now, but having a browse today, I discovered this loopy animation: which would not have been out of place in Douglas Hofstadter’s “I am a Strange Loop” I really … Continue reading →

Posted in Animation, Computing - general, Excel, Maths, Newton, VBA | Tagged , , , , , | 2 Comments

Two viewers

Posted on 17/12/2013 by dougaj4

I have previously looked at using Excel for generation of images from data listing  3D coordinates of points and lists of connections (see  https://newtonexcelbach.wordpress.com/2012/09/27/daily-download-11-perspective-projection/ for instance), but this approach is limited in what can be done: It will only generate a “wire-frame” … Continue reading →

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Circle Limit III animation

Posted on 15/11/2012 by dougaj4

Enjoy: And papers by the artist on how to do it available at: http://bulatov.org/math/1107/ Update 16th Nov 12: Comments and more links from PM2Ring: That image is an example of a tessellation of the hyperbolic plane, in the Poincaré disc … Continue reading →

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