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Re: [Axiom-developer] Of possible interest to Axiom

From: root
Subject: Re: [Axiom-developer] Of possible interest to Axiom
Date: Thu, 18 Sep 2008 07:55:01 -0400

>>>> The latest documentation work is creating a full graph of the Axiom
>>>> algebra as part of the bookvol10* buildout. This could be useful in
>>>> guiding your work in building a CLOS version.
>>> I have been watching your progress and bookvol10 is looking very good.
>>> It should be fairly easy to write a lisp package which traverses the 
>>> in-memory
>>> algebra lattice in various ways and produces graphviz output.  We could 
>>> graph
>>> the entier hierarchy, or just a "local view" of a domain and, say, its 
>>> direct
>>> supersignatures.  Or a who-calls graph for a particular function, etc.  This
>>> would happen dynamically at runtime.
>> Look at <> which is the 
>> latest incarnation I'm testing.
>> The key innovation here is that I've figured out how to connect the
>> graphviz graph directly to the PDF files. So once I put up the next
>> version of the system you should be able to look at the graphviz category
>> graph, click on a box, and go directly to the page in the PDF. Try:
>> <>
>> or 
>> <>
>> I've also figured out some more tricks to use Axiom to dynamically
>> generate information but I haven't had time to code them yet.
>> The literate documentation is getting more interesting.
>> Tim

>I find this project VERY interesting, but I don't know enough about the 
>terminology used to get the complete picture. For example I read the 
>first paragraph and was lost.
>In general, we use several colors in the graph images. The “lightblue” 
>color indi-
>cates a category that is in the direct inheritance path. The “green” 
>color indicates a category or domain used in the exports. The “seagreen” (a
>dark green, indicates a category or domain which is used but does not corre-
>spond to the signature of an existing category. The system can infer 
>that this
>“subsumption node” matches the category. A “yellow” color indicates a 
>Where am I to find out exactly what you mean by:
>“subsumption node”
>I have vague idea of what they mean but I think I should know these 
>precisely if I am to learn this system.

You need to look at bookvol0, the Jenks and Sutor book at


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