Relative line drawing in isometric grid.

I've tried drawing a line in polar coordinates from the relative zero point (which is locked).  Using the command line I _think_ the command should be eg: "@45<,10" for the first point in the line.  However, this just gives "Expression Syntax Error".  Does anyone know the correct input format, or can this not be done, or is it a bug?

Thanks - Will

As we (I at least) don't have an online help for Librecad, I would suggest to use the QCad Manual.
Syntax for the polar point is DISTANCE<ANGLE

"As we (I at least) don't have an online help for Librecad..."
If you would like to have an online help for Librecad you may want to have a look at:
http://wiki.librecad.org/index.php/Main_Page
this may be interesting:
http://wiki.librecad.org/index.php/LibreCAD_version_2,_users_Manual/Guide_-_by_Bob_Woltz
http://wiki.librecad.org/index.php/LibreCAD_Quick_Start_Guide
http://wiki.librecad.org/index.php/Commands_and_tools_-_using_the_command_line
http://wiki.librecad.org/index.php/A_short_manual_for_use_from_the_command_line

By the way there are some videos on youtube:
http://www.youtube.com/results?search_query=librecad&oq=librecad
for example:
http://www.youtube.com/watch?v=53DOEKzL2rw&list=PLB9CB29692D89976A

Try without the comma (the < takes place of the ,), so :
@45<10
Hope this helps