Ellipse Subroutine

Several times I read of people asking for a true ellipse.

This routine does that with endmill compensation. A positive endmill size will contour the outside and a negative will contour the inside.

I only spent about two hours writing this code, so please test and use at your own risk.

...Ved.

Finally,

The ellipse is coming back to linuxcnc... with special features... soon
an ellipse without a one liner.... a story about ellipse corner chamfer etc.