 STk stack window help
STk stack window help
 
This window allows you to see the stack when an error occurs. Two
sub-windows compose it.
   
  -  the topmost window (labeled Stack content)
       shows the contents of the stack when the error occurred. Each line
       contains the parameters passed to an invocation of the eval 
       procedure (last call to eval is on the first line).
       
 This window is also made of two sub-windows.
	  -  On the left side is the environment in which the expression 
	       must be evaluated. Click on an item of this list to view
	       the bindings defined in this environment.
      	  
-  On the right side, there is the expression to evaluate. Clicking on
	       an item of this list sets the Listener 
	       default environment to the environment of this expression.
       
 
-  the bottom window (labeled Listener) allows you to 
       interact with the STk interpreter. The listener reads an
       expression in this window, evaluates it (in the environment previously
       selected in the above Stack window) and prints its result in 
       this window. 
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