• User-defined Function
• Manage a User-defined Function
• Define a User Defined Function

Besides the above described build-in calculations, SIGMA offers the user to define his own functions to be calculated. These user defined functions are defined in a purpose build mini-language. The results calculated by such user defined functions are treated as any other result and can be viewed in diagrams or as result list.

Path: Main menu: Simulation > User-defined functions…



By choosing Simulation, User-defined functions a dialog for managing user defined functions opens. Here a user can create, edit and delete existing user defined functions.

At the top a name for this function and a unit for the return value of the function have to be defined. Once a name is defined it can not be changed in subsequent editing steps.

The middle part of the dialog contains a text field for defining the function. The text in this field is syntax highlighted according to the syntax of user defined functions, for example keywords are colored blue. More to the syntax of user defined functions can be found in the section Define a User-defined Function.

In the lower part, pre-defined variables can be easily chosen and inserted in the text of the user defined function. There are about 150 predefined variables such as calculation results, geometrical data, materials and process parameters that can be used in user defined functions.

By clicking Ok, the given function is tested in view of the syntactical correctness. If there are syntactic errors, these errors will be displayed and the position in the text field will be marked accordingly.