Pls Help how to close an ellipse

[JosephRaymundo]

Hi guys,

Pls help me with my problem, formula is given above

and i make it a function to graph it but ellipse is not closed.

Thanks in advance

[AndyWesterman]

Try like this,

you need to consider both solutions for the complete picture.

range variable x: -6,5.9;6 still leaves a small , but noticeable gap.

Regards

Andy

[JosephRaymundo]

Thank you very much for your kind reply.

[VladimirN]

Also, you can try the following: