# Using SALOME NoteBook¶

**SALOME NoteBook** allows defining variables to be used for
creation and modification of objects.

**Setting of variables in SALOME NoteBook**

**Use of variables to add a node in MESH module**

The following limitations on the use of variables still exist:

Distribution of Layers hypothesis - parametrical values are correctly applied, but they are not restored after “Update study” operation.

Number of Segments hypothesis, Distribution with Table Density and Distribution with Analytic Density - parametrical values are not applicable.

Translation dialog box, default mode (translation by two points) - parametrical values are correctly applied, but they are not restored after “Update study” operation.

Merging nodes dialog box - parametrical value (tolerance of coincident nodes detection) is correctly applied, but it is not restored after “Update study” operation.

Revolution dialog box - it is impossible to use the angle of revolution as “total angle” if it is defined as variable.

Extrusion along a path dialog box - it is impossible to use “Linear variation of the angles” mode if at least one of those angles is defined as variable.

Pattern mapping dialog box - parametrical values (indices of nodes) are correctly applied, but they are not restored after “Update study” operation.

Clipping dialog box.

Properties dialog box.

Our **TUI Scripts** provide you with useful examples of Using SALOME NoteBook.