Posted by LordOfBikes on Nov 27, 2023; 6:45pm
URL: https://forum.librecad.org/Circles-from-the-Command-Line-tp5723909p5723916.html

Iirc there was just a discussion about wording and modification of the Circle Center,Point tool.
The old wording radius was meant to provide a point on the circumference, by click or command line, what is in fact the radius.
But because of the wording users entered a single number, which is not valid for a point, and failed. Therefore it was renamed from radius to point to avoid this irritation.
I don't remember that entering the radius was removed, but don't nail me down on that.

So entering the radius with Circle Center,Point tool requires a coordinate. With a relative coordinate the radius is part of the coordinate, e.g. @0,10 or @10,0 or 0..10 or 10..0.
This was probably used in the video you mentioned. If you post a link, we can check it.