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<body><span class="vcard"><a class="email" href="mailto:sgougeon@free.fr" title="Samuel GOUGEON <sgougeon@free.fr>"> <span class="fn">Samuel GOUGEON</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Slow power of matrix computation"
href="http://bugzilla.scilab.org/show_bug.cgi?id=13936">bug 13936</a>
<br><br>
---------- Bug Summary ----------- <br>Slow power of matrix computation <br><br>
<br>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Keywords</td>
<td>
</td>
<td>nonregression_test_missing
</td>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr>
<tr>
<td style="text-align:right;">Assignee</td>
<td>bugzilla.admin@scilab.org
</td>
<td>sgougeon@free.fr
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Slow power of matrix computation"
href="http://bugzilla.scilab.org/show_bug.cgi?id=13936#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Slow power of matrix computation"
href="http://bugzilla.scilab.org/show_bug.cgi?id=13936">bug 13936</a>
from <span class="vcard"><a class="email" href="mailto:sgougeon@free.fr" title="Samuel GOUGEON <sgougeon@free.fr>"> <span class="fn">Samuel GOUGEON</span></a>
</span></b>
<pre>This bug is fixed with Scilab 6.0.1 / win7 64 bits:
--> n=1000; k=10;
--> M=rand(1000,1000);
--> tic; pM1=M^k; toc
ans =
0.2728594
--> tic;
--> pM2=eye(M);
--> for i=1:k
> pM2=M*pM2;
> end
--> toc
ans =
0.4994109
I get the same ratio on Fedora.</pre>
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