@JesseRMeyer @casseveritt That would be taking the antiwedge product of two 3D antivectors to produce a homogeneous 2D point.

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• URL: https://x.com/EricLengyel/status/809256751090438145
• Author: Eric Lengyel (@EricLengyel)
• Posted: 2016-12-15 04:40:19

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1/ @EricLengyel

@JesseRMeyer @casseveritt

That would be taking the antiwedge product of two 3D antivectors to produce a homogeneous 2D point.

2/ @EricLengyel

@JesseRMeyer @casseveritt

My book only talks about 3D case, but if you set each z=0, you get the 2D result that looks like a cross product.

3/ @EricLengyel

@JesseRMeyer @casseveritt

Btw, important to realize [a b c] is not a vector, but an antivector with diff behavior under non-ortho transform.

Branches: 2016-12-15-casseveritt-antivectors-sound-evil