> I would like to note that arcfn is out of date. I believe it references Arc 2, not Arc 3.1. I'm sure that myself or others can help you out if you have any questions. One of the changes between Arc 2 and Arc 3 is that Arc 3 uses "assign" whereas Arc 2 uses "set".
Thanks. I did notice ac.scm uses assign where as arcfn talks about 'set'. Anyway, I didn't implement neither assign nor set, not scar not scdr. I just implemented '=' as a special form.
Thanks for #3 btw, my '=' only worked with one variable before; now fixed.