After upgrading to 2.16, we are getting the error an error for any formulas that use, say cos^5 (x) instead of (cos(x))^5 :
Function 'cos' is missing its input(s)
The same error occurs for the other trig functions. All of these problems rendered fine before the upgrade to 2.16. Any ideas on how to fix this?
Example file: Wiley/setAnton_Section_2.6/Question20.pg
Update: Error appears when rendering in homework sets editor (HSE), and viewing from HSE page. However, if "edit" is selected, and then save (even though no changes have been made), the error disappears and all is fine.
Still not sure what to do about viewing problems in the OPL with this error though.