Torus: Perbedaan antara revisi
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Baris 12:
Persamaan parametrik dari sebuah torus didefinisikan sebagai:
<ref>{{Cite web |url=http://www.geom.uiuc.edu/zoo/toptype/torus/standard/eqns.html |title=Salinan arsip |access-date=2009-12-04 |archive-date=2019-05-20 |archive-url=https://web.archive.org/web/20190520005301/http://www.geom.uiuc.edu/zoo/toptype/torus/standard/eqns.html |dead-url=yes }}</ref>
:<math>x(u, v) = (R + r \cos{v}) \cos{u} \, </math>
:<math>y(u, v) = (R + r \cos{v}) \sin{u} \, </math>
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