Yes, SimaPro offers a wide range of functions and operators for building expressions for calculated parameters. These are parameters that are dependent on other parameters within an expression. SimaPro also checks if your expression is valid and reports any errors found. To view all available functions and operators, go to the Parameters tab > Calculated parameters, right-click the Expression field and select Edit Expression to arrive at the following window:
To create expressions, you can use this window, or you can just type the expression directly into the Expression field.