how to generate function of an ellipse?

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Jing Hua
Jing Hua 2012 年 7 月 12 日
I know centre (x,y), semi-major and semi-minor axia(a,b) and the orientation of the ellipse (angle). How do I generate the function of the ellipse because there is an orientation involved in it.
Cheers
Jing

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Ryan
Ryan 2012 年 7 月 12 日
There is a function to draw such an ellipse in Matlab if you have the PDE toolbox, pdeellip(xc,yc,a,b,phi)
If you're looking for a more general math, non-Matlab specific answer for the equation of a rotated ellipse check Q21 here, hope that helps.

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