To create a new figure, use icon .
A dialog box pops up displaying choices for the frame.
You can create an frame of type orthonormal, orthogonal, oblique or oblique withh equal length unities.
You can also choose different types of grid, of scaling (including trigonometry scaling).
You can ask to get vectors on each axis..
You can also choose the x-coordinate origin, the y-coordinate origine, the unit on each axis..
Length OI is set as length-unity of the figure.
For the creation of a figure with a frame and a millimetered grid.
A new figure is created with a segment [UV] on the top left corner of the figure. The length of this segment is the length-unity of the figure.
A new figure is created without legth unity. So you won't be able to measure lengths unless you choose a length unity afterwards.
To choose a length unity for a figure, use icon at the botoom of the left toolbar and choose Unity Length Creation.
Choose the type of basic figure in the dialog box and validate.
You get a figure with a frame without vectors on the axis
Macros on the figure allow the user to transform the frame :
Same as above with vectors on each axis.
You can choose one of the following figures :
15 figures are available.
One of the allowing the graph of a z = f(x, y) surface.
Movable points allow the user to turn the figure and change the viewing angle.