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Sphärische Helixkurve

Author:Georg Wengler
Kurvengleichung für die Einheitskugel: x(t) = 1/2 (1+cos(a)) cos(t)-1/2(1-cos(a)) cos((1+cos(a))/(1-cos(a)) t) y(t) = 1/2 (1+cos(a)) sin(t) -1/2(1-cos(a)) sin((1+cos(a))/(1-cos(a)) t) z(t) = sin(a) cos(cos(a)/(1-cos(a)) t)

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