Karthik R
Administrator
Hello You should be able to use expressions if you have analytical functions. You can see the list of all the available variables, functions, and operators here.
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v211/en/flu_ug/flu_ug_expression_syntax.html
For certain operations, you can use as well. I'm not sure about your usage but I'd look into the link I shared to understand if you can successfully attempt what you are currently doing with the UDF.
Karthik