Abstract
One gets every cubic curve with rational parametrization by projecting the curve with general point $(t\mid t^2\mid t^3)$ in different ways onto planes. This result shows the power of elementary methods.
Keywords: Parabola; space curves; twisted cubic; orthographic projection; divergent parabolas; trident curve.
Pages: 51$-$62
Volume X , Issue 1 , 2007
Published by Društvo matematičara Srbije Kneza Mihaila 35/IV, P.O.B. 355, 11000 Belgrade, Serbia E-mail: drustvomatematicara(at)yahoo.com Fax: +381 11 3036 819 ISSN 2406-1077 (Online), ISSN 1451-4966 (Print)