Re: LOGO-L> eliminating items randomly from a list

[George Mills <mills@softronix.com>]

Most C++ programmers don't think of an array as "Fixed" length anymore.
Later in Chucks message he asked about "dynamic" arrays.
You pay a performance penalty for this luxury, but not as steep
a penalty as you do for Logo lists.

And much like butfirst, butitem etc. there are some pretty
common classes for doing common operations.

Then it boils down to the typeless aspect of a Logo list.

The Microsoft MFC class CList and CArray are typeless.
They can contain anything as long as they are derived from CObject.

Then it boils down to the fact that Logo Lists are what
procedure definitions are kept in (which is not taken advantage
that often particularly young students). There are many other
aspects to Logo that also use lists which give it very
consistent model to work with. Once you've learned the basics
of lists in Logo you've learned 3/4's of the language.

They also tend to work hand in hand with recursive solutions.

I like the fact UCBLogo/MSWLogo has arrays.
How about adding a hook to make them dynamic (probably not that hard)
:-)

Brian Harvey wrote:
> 
> > What is the difference between a list and an array?
> 
> There are two ways to answer this question: technical and psychological.
> Let me start with the technical answer.
> 

-- 
===============================================================
George Mills
email: mills@softronix.com
http://www.softronix.com
The www page contains some very powerful educational software.
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