Post B61ekssHYKjm2cDIUy by mbr@mastodon.gamedev.place
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 (DIR) Post #B61ekssHYKjm2cDIUy by mbr@mastodon.gamedev.place
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       On mapping tangent/bitangent to unit circle and back.https://marc-b-reynolds.github.io/math/2026/05/06/NormalTwist.html