My Math Forum WolframAlpha syntax to convert cartesian equation to parametric form

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 October 12th, 2018, 07:25 PM #1 Newbie   Joined: Oct 2018 From: Indoors Posts: 9 Thanks: 0 WolframAlpha syntax to convert cartesian equation to parametric form Does anyone know how to do that? I tried it with Wolfram|Alpha: Computational Intelligence but it just won't show x=5cos t & y=4sin t
 October 14th, 2018, 01:39 AM #2 Global Moderator   Joined: Dec 2006 Posts: 20,089 Thanks: 1902 I don't know how to do that directly. When you enter x^2/25 + y^2/16 = 1, W|A tells you that this is the equation of an ellipse. If you then enter ellipse, W|A gives you parametric equations for the ellipse with Cartesian equation $\displaystyle \frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$. Thanks from TheReluctantMathMan

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