[OT] -10^2

Dar Scott dsc at swcp.com
Sat May 24 10:49:01 EDT 2003

On Saturday, May 24, 2003, at 09:19 AM, Geoff Canyon wrote:

> So even with RPN it's possible to have ambiguity. Is it possible to 
> use parenthesis to resolve it, or do you have to use the tricks listed 
> above?

In any language you can have ambiguity if you allow name ambiguity.  In 
RPN ambiguity is usually resolved in this case with a separate negation 
symbol.  That is, the name ambiguity is removed.  The calculator has a 
negation button, named something like "+/-".  FORTH has "neg".

Dar Scott

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