How to plot foci points & semi-major/minor axis for an ellipse

Hi,

I am quite new to Matlab and I am trying to plot an ellipse which display the centre co-ordinates, foci and the semi-major/minor axis.

I have manged to plot the ellipse and display the centre co-ordinates and the points for the foci, however the foci points are offset for some reason and I am unsure what I need to do to have them placed in the correct position.

Also I'm not sure how to start to plot the semi-major/minor axis.

I have attached the code so far.

Could I please obtain some guidance to resolve this problem.

Regards

[Mathieu NOE]

hello

have you looked at this posts ?

How to plot an Ellipse - MATLAB Answers - MATLAB Central (mathworks.com)

To plot an ellipse - MATLAB Answers - MATLAB Central (mathworks.com)

[Dan Lardner]

Thanks for the advice Mathieu.

This did not solve my problem immediately, however it gave me a good approach and I managed to resolve the issue in the end.

Regards

[Mathieu NOE]

Glad it helped !