******************* This email from k210@list.ru originated outside Imperial. ******************* Hello,   is it  impossible to use u,v,w in the forcing expressions like this   </CONDITIONS> …         <FUNCTION NAME="MyForce">             <E VAR="u" VALUE="v+u" />             <E VAR="v" VALUE="1.0" />         </FUNCTION> ...     </CONDITIONS>          <FORCING>         <FORCE TYPE="Body">             <BODYFORCE> MyForce </BODYFORCE>         </FORCE>     </FORCING>   ?   Alexander Proskurin