http://drexfactor.com/weirdscience/2013/04/25/linear_extension_companion
Breaking down intermediate poi moves can be difficult–one way to do it is to see those moves as consisting of smaller and more fundamental pieces of movement. One of those fundamentals is the linear extension. In this video, we will play with a few patterns that can be created with linear extensions, including antispin flowers, triquetras, and pentagrams.
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