I'm a math instructor living in CO. Came here to claim my nice @mikepierce username in case there's a mass migration from twitter.

Right now trying to figure out the nicest way to calculate the angle between two rays in 3-dimensional space given their "spherical coordinate" angles


@mikepierce Hi! Maybe if you convert your rays to (unit) quaternions, you can use Slerp to calculate the angle? en.wikipedia.org/wiki/Slerp

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