[CM] newbie question

[fdowling]

Hi,

I've been trying to follow "Notes from the Metalevel" but I keep running into 
the same problem when exercising any of the examples in the listener.

1 > (define 2pi (* 2 pi))
> Error in process Initial: Unbound variable: 2PI
> While executing: CCL::CHEAP-EVAL-IN-ENVIRONMENT
> Type Command-/ to continue, Command-. to abort.
> If continued: Retry getting the value of 2PI.
See the Restarts
 menu item for further choices.

Thanks in advance,
Fergal Dowling.