[#5218] Ruby Book Eng tl, ch1 question — Jon Babcock <jon@...>

13 messages 2000/10/02

[#5404] Object.foo, setters and so on — "Hal E. Fulton" <hal9000@...>

OK, here is what I think I know.

14 messages 2000/10/11

[#5425] Ruby Book Eng. tl, 9.8.11 -- seishitsu ? — Jon Babcock <jon@...>

18 messages 2000/10/11
[#5427] RE: Ruby Book Eng. tl, 9.8.11 -- seishitsu ? — OZAWA -Crouton- Sakuro <crouton@...> 2000/10/11

At Thu, 12 Oct 2000 03:49:46 +0900,

[#5429] Re: Ruby Book Eng. tl, 9.8.11 -- seishitsu ? — Jon Babcock <jon@...> 2000/10/11

Thanks for the input.

[#5432] Re: Ruby Book Eng. tl, 9.8.11 -- seishitsu ? — Yasushi Shoji <yashi@...> 2000/10/11

At Thu, 12 Oct 2000 04:53:41 +0900,

[#5516] Re: Some newbye question — ts <decoux@...>

>>>>> "D" == Davide Marchignoli <marchign@di.unipi.it> writes:

80 messages 2000/10/13
[#5531] Re: Some newbye question — matz@... (Yukihiro Matsumoto) 2000/10/14

Hi,

[#5544] Re: Some newbye question — Davide Marchignoli <marchign@...> 2000/10/15

On Sat, 14 Oct 2000, Yukihiro Matsumoto wrote:

[#5576] Re: local variables (nested, in-block, parameters, etc.) — Dave Thomas <Dave@...> 2000/10/16

matz@zetabits.com (Yukihiro Matsumoto) writes:

[#5617] Re: local variables (nested, in-block, parameters, etc.) — "Brian F. Feldman" <green@...> 2000/10/16

Dave Thomas <Dave@thomases.com> wrote:

[#5705] Dynamic languages, SWOT ? — Hugh Sasse Staff Elec Eng <hgs@...>

There has been discussion on this list/group from time to time about

16 messages 2000/10/20
[#5712] Re: Dynamic languages, SWOT ? — Charles Hixson <charleshixsn@...> 2000/10/20

Hugh Sasse Staff Elec Eng wrote:

[#5882] [RFC] Towards a new synchronisation primitive — hipster <hipster@...4all.nl>

Hello fellow rubyists,

21 messages 2000/10/26

[ruby-talk:5864] Re: Symbolic evaluation without quoting trick.

From: "Hal E. Fulton" <hal9000@...>
Date: 2000-10-26 05:23:09 UTC
List: ruby-talk #5864
----- Original Message ----- 
From: Conrad Schneiker/Austin/Contr/IBM <schneik@us.ibm.com>
To: ruby-talk ML <ruby-talk@netlab.co.jp>
Sent: Wednesday, October 25, 2000 10:05 PM
Subject: [ruby-talk:5863] Re: Symbolic evaluation without quoting trick.


> Hal wrote:
> 
> # What are s-expressions? Is this symbolic math, as in symbolic
> # differentiation and so on?
> 
> Once a pun a time, it was an ancient Lisp expressions, parenthetically 
> speaking.

Never used Lisp, though I've heard the legends. (It stands for Lots of
InSignificant Parenthese, you know.)

> Simplistically speaking, think of using something like 
> 
>     s-exp = (a (b c) (d (e f (g)))) 

Yes, I wrote some binary tree code the other day and gave something
like this as a print option.

> 
> to represent a tree structure. This can be generalized to arbitrary 
> directed graphs.

Now that's neat. It's obvious how a multiway tree could be represented, but
it's not obvious to me how a directed graph with loops could be represented
this way.

> Here is an interesting application 
> (http://www.toc.lcs.mit.edu/~rivest/sexp.html):
> 

That really is interesting. But the link doesn't seem to have been 
touched in three and a half years. Maybe it's sort of abandoned?

Hal




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