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### Variables-Functions-Formulae

The third column stands for variables, functions and formulae.
Variables can contain numerical values, co-ordinates or even texts.

All usual mathematical standard functions as well as functions calculating lengths, distances and other data of geometrical objects or transferring different types of variables into one another are available. In addition the user himself may create functions.

These functions and variables may be used for the construction procedure itself as well as for the connection of parametric dimensions.

All variables and functions may be used for the declaration of all input parameters with the help of arithmetic expressions (=formulae) no matter how complex they are.

These three fundamentals of the parametric concept are the prerequisite for the efficient use of parametrics because these basic functionalities guarantee the user to map the construction logic to the CAD-model very comfortably. Without such a possibility parametric construction would always cause some difficulties.