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Un article trouvé pour ce sujet.
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A curve in 3-space |
2013-02-14 |
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pardeep pose la question :
we have to show that the curve r(t)=(cos t)i+(sin t)j+(1-cos t)k ,0<=t<=2pie;
is an ellipse by showing it to an intersection of a right circular cylinder and a plane.
i got the eqn. of the cylinder but did not get the eqn of plane.
Harley Weston lui répond. |
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