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    <title>MaplePrimes - comments on Post, Solving Dense Linear Systems in Maple 12</title>
    <link>http://www.mapleprimes.com/posts/39353-Solving-Dense-Linear-Systems-In-Maple-12</link>
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    <copyright>2026 Maplesoft, A Division of Waterloo Maple Inc.</copyright>
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    <lastBuildDate>Mon, 15 Jun 2026 23:10:43 GMT</lastBuildDate>
    <pubDate>Mon, 15 Jun 2026 23:10:43 GMT</pubDate>
    <itunes:subtitle />
    <itunes:summary />
    <description>The latest comments added to the Post, Solving Dense Linear Systems in Maple 12</description>
    <image>
      <url>http://www.mapleprimes.com/images/mapleprimeswhite.jpg</url>
      <title>MaplePrimes - comments on Post, Solving Dense Linear Systems in Maple 12</title>
      <link>http://www.mapleprimes.com/posts/39353-Solving-Dense-Linear-Systems-In-Maple-12</link>
    </image>
    <item>
      <title>smaller solutions</title>
      <link>http://www.mapleprimes.com/posts/39353-Solving-Dense-Linear-Systems-In-Maple-12?ref=Feed:MaplePrimes:Solving Dense Linear Systems in Maple 12:Comments#comment71622</link>
      <itunes:summary>&lt;p&gt;I thought I would post a few more times for linear systems with smaller entries.   The systems above have large solutions, ie: the numerators and denominators of the last solution have 20000 bits, or about 6000 decimal digits each.  That's a lot of lifting steps.&lt;/p&gt;
&lt;p&gt;These times are all from a Pentium 4 3.2 GHz, computer running 32-bit Maple 12.  The matrix entries range from -5 to 5.  The numerators and denominators of the last system have about 4000 decimal digits.  On structured systems (where the solution is expected to be small) you could obviously get much better performance.&lt;/p&gt;
&lt;pre&gt;
read &amp;quot;dpadic.mpl&amp;quot;:
infolevel[solve] := 0:
with(LinearAlgebra):
for N from 8 to 11 do
  A := RandomMatrix(2^N, 2^N+1,generator=-5..5):
  TIMER := time(DensePadicLift(A,2^N));
  print(2^N = TIMER);
end do:
                    256 = 1.276

                    512 = 7.772

                   1024 = 54.499

                   2048 = 496.655
&lt;/pre&gt;</itunes:summary>
      <description>The latest comments added to the Post, Solving Dense Linear Systems in Maple 12</description>
      <guid>71622</guid>
      <pubDate>Mon, 19 May 2008 07:09:42 Z</pubDate>
      <itunes:author>roman_pearce</itunes:author>
      <author>roman_pearce</author>
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