[Axiom-developer] [Enhanced Fraction Domain] (new)

[Bill Page]

Changes 
http://page.axiom-developer.org/zope/mathaction/EnhancedFractionDomain/diff
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Original Date: Fri, 25 Mar 2005 12:01:44 -0600

Here is a serie of patch to enhance computation that involves fraction integer.
Do
<pre>
download gcl source, decompress this archive apply gcl.patch (this patch come 
from gcl-2.6.5 but can probably be applied on 2.6.6).
recompress gcl, copy it to zips directory  (keep the same name)
remove gcldir and gcl-2.6.* in lsp directory
patch the interpreter with interp.patch. (change behavior of coercion of 
fraction(integer))
patch fraction.spad.pamphlet (handle fraction(integer) as integer i.e by gcl)
remove mnt/linux/algebra/FRAC.o, int/algebra/FRAC.NRLIB/code.o and 
int/algebra/FRAC.spad
type make
remove mnt/linux/algebra/FRAC.o, int/algebra/FRAC.NRLIB/code.o and 
int/algebra/FRAC.spad
type touch src/algebra/fraction.spad.pamphlet or open it in an editor and 
resave it
type make
Have fun
</pre>

This involve one patch (gcl.patch) backported from gcl-2.7.0-cvs. It 's a 
request made for use algorithm from libgmp in cancellation of
gcd in fraction.
Copying of this patch is GNU LIBRARY GENERAL PUBLIC LICENSE       Version 2, 
June 1991


<a href="gcl.patch">gcl.patch</a>


<a href="interp.patch">interp.patch</a>


<a href="fraction.patch">fraction.patch</a>


>From unknown Fri Mar 25 12:06:22 -0600 2005
From: unknown
Date: Fri, 25 Mar 2005 12:06:22 -0600
Subject: How to patch
Message-ID: <address@hidden>

Change in root of application to patch (for example with gcl cd gcl-2.6.5) and 
type cat gcl.patch |patch -p0
If this doesn't work type cat gcl.patch |patch -p1
<pre>
p0 or p1 depends of your place in the tree
</pre>


>From unknown Fri Mar 25 12:13:42 -0600 2005
From: unknown
Date: Fri, 25 Mar 2005 12:13:42 -0600
Subject: Timing
Message-ID: <address@hidden>

This patch is just a code optimization and not a mathematical optimization 
(algorithm)
matrix(FRAC INT,50,50) * matrix(FRAC INT,50,50):
<pre>
before: 3.17 sec
after:  0.83 sec
</pre>
Factor: 3.8192771084
Check it, test it and enhance it, Have fun and regards

>From unknown Sat Mar 26 04:03:05 -0600 2005
From: unknown
Date: Sat, 26 Mar 2005 04:03:05 -0600
Subject: New page
Message-ID: <address@hidden>
In-Reply-To: <address@hidden>

seems that the changes to axiom only work with gcl. Is this correct? J Weiss

>From unknown Sat Mar 26 06:02:15 -0600 2005
From: unknown
Date: Sat, 26 Mar 2005 06:02:15 -0600
Subject: No
Message-ID: <address@hidden>

Work with all implementations of common lisp. I use lisp rational. I just asked 
to change some algorithms (euclidean) in gcl.

>From unknown Fri Mar 25 19:16:22 -0600 2005
From: unknown
Date: Fri, 25 Mar 2005 19:16:22 -0600
Subject: New page
Message-ID: <address@hidden>

Bill, Can you make a new page for this?
This looks strange... tested for several months.


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