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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 - Add functions to build multi-diagonal matrixes."
href="http://bugzilla.scilab.org/show_bug.cgi?id=6277">bug 6277</a>
<br><br>
---------- Bug Summary ----------- <br>Add functions to build multi-diagonal matrixes. <br><br>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Add functions to build multi-diagonal matrixes."
href="http://bugzilla.scilab.org/show_bug.cgi?id=6277#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Add functions to build multi-diagonal matrixes."
href="http://bugzilla.scilab.org/show_bug.cgi?id=6277">bug 6277</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>The toeplitz() function is made for this and more.
There is no relevance to build a specific version restricted to only 3 diagonals.
Its cross-referencing in the help was improved recently.
--> b = toeplitz(sparse([1 2 0 3 zeros(1,3)]), sparse([1 4 zeros(1,3)]))
b =
( 7, 5) sparse matrix
( 1, 1) 1.
( 1, 2) 4.
( 2, 1) 2.
( 2, 2) 1.
( 2, 3) 4.
( 3, 2) 2.
( 3, 3) 1.
( 3, 4) 4.
( 4, 1) 3.
( 4, 3) 2.
( 4, 4) 1.
( 4, 5) 4.
( 5, 2) 3.
( 5, 4) 2.
( 5, 5) 1.
( 6, 3) 3.
( 6, 5) 2.
( 7, 4) 3.
--> full(b)
ans =
1. 4. 0. 0. 0.
2. 1. 4. 0. 0.
0. 2. 1. 4. 0.
3. 0. 2. 1. 4.
0. 3. 0. 2. 1.
0. 0. 3. 0. 2.
0. 0. 0. 3. 0.</pre>
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