Huge speedup for union WAS: Maxima/Ecl on 32-bit machine cannot evaluate "apply(union, listify({{..}}))"
Subject: Huge speedup for union WAS: Maxima/Ecl on 32-bit machine cannot evaluate "apply(union, listify({{..}}))"
From: Judy Toth
Date: Mon, 8 Sep 2008 00:42:42 -0400
How big? What I am working on lately is very large lists, about 30000-50000 elements each one a sublist of 5 elements.
Rich
------------Original Message------------
From: Barton Willis <willisb at unk.edu>
To: "Stavros Macrakis" <macrakis at alum.mit.edu>
Cc: "Robert Dodier" <robert.dodier at gmail.com>, maxima at math.utexas.edu, maxima-bounces at math.utexas.edu
Date: Thu, Sep-4-2008 12:00 PM
Subject: Re: [Maxima] Huge speedup for union WAS: Maxima/Ecl on 32-bit machine cannot evaluate "apply(union, listify({{..}}))"
It was my bug that converted the nice core nset algorithms from O(n)
to O(n log(n)). My apologies to Stavros and rest of the Maxima
community.
We need users to test nset (and all of Maxima) with big problems.
Barton
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