XPost: alt.windows7.general, alt.comp.os.windows-10   
   From: address@is.invalid   
      
   John,   
      
   > Asssuming DegToRad() just means multiply by pi / 180 ...   
      
   Well, you may use any calculation in there that you want, as long as it does   
   the job. :-)    But yes, thats what the/my DegToRad function does.   
      
   > ... then the above simplifies to tan(Latitude*pi*pi/720)\2.53627, and   
   > of course pi*pi/720 can be given as a constant.   
      
   I didn't even think that far.   As I said, I'm no math wizz. :-|   
      
   Regards,   
   Rudy Wieser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)