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Animation

To change a number or angle continuously select move mode (3.2.1), click on the number or angle and press the + or - key.

Keeping one of these keys pressed lets you produce animations. For example, if a point's coordinates depend on a number k like in `P=(2k, k)`, the point will move along a straight line when k is changed continuously.

With the arrow keys you can move any free object in move mode. The increment is adjustable in the properties dialog (3.1.1).

- Ctrl + arrow key ...10 * step width
- Alt + arrow key ...100 * step width

A point on a line can also be moved along its line using the + or - key.