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Inscribed Angle and Quaternions

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The inscribed angles of lines define two angles of vectors. If one is (u, v)=(-u,-v) the other is (-u, v)=(u,-v) These angles are the angles of quaternions defined by the arcs subtended the red and blue concatenated arcs are defined by two angles of vectors inscribed, (v0, v2) (v2, v3) of two circles The inscribed angle of vectors (v0, v3) in the third circle defines the green arc, produces arcs red and blue The blue spheres change angles (v0, v2) (v2, v3) in (-v0, v2) (v2, -v3). built with Proscene
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