How to add a column with computed columns with values of row on Sybase IQ
Page Considerations When Using the CREATE TABLE Statement from the Sybase IQ 16 online manual:

Computed Columns
Computed column support differs as follows:

SAP SQL Anywhere supports computed columns that can be indexed.

Adaptive Server Enterprise and SAP Sybase IQ do not.




It seems to support views though, so you could define a view that contains the columns of the table plus the function, as another column (the column values will not be materialized this way, only computed when needed.)