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1/ Command :

• CTAN

2/ Descri​ption :

This tool allows you to easily draw Tangent Lines between two circles.

• Tangent Connections : Creates lines that perfectly touch (tangent) two　selected circles.

• Flexible Tangency : Can draw external tangents (connecting outer sides) or internal tangents (crossing), depending on which side of the circles you click.

3/ How to Use :

1. Type CTAN in the command line and press Enter.

2. Click the first Circle near the point where the tangent should start.

3. Click the second Circle near the point where the tangent should end.

4. (Repeat　selection to draw more tangent lines as needed, e.g., for the other side).

5. The tool draws the tangent line connecting the　selected points on the circles.