? main1
ModularInterpreter
author: Luc Duponcheel
all comments are welcome (luc@cs.ruu.nl)

1> (1+1)
   after parse:
   (1+1)
   after inter:
   2
1> ((1+1)*(1+1))
   after parse:
   ((1+1)*(1+1))
   after inter:
   4
1> ((1+1)/(1-1))
   after parse:
   ((1+1)/(1-1))
   after inter:
   ERROR: 2/0
1>         

