You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
172 lines
7.2 KiB
HTML
172 lines
7.2 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
|
|
"http://www.w3.org/TR/html4/loose.dtd">
|
|
<html >
|
|
<head><title>psb_normi — Infinity Norm of Sparse Matrix</title>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
|
<meta name="generator" content="TeX4ht (https://tug.org/tex4ht/)">
|
|
<meta name="originator" content="TeX4ht (https://tug.org/tex4ht/)">
|
|
<!-- html,3 -->
|
|
<meta name="src" content="userhtml.tex">
|
|
<link rel="stylesheet" type="text/css" href="userhtml.css">
|
|
</head><body
|
|
>
|
|
<!--l. 866--><div class="crosslinks"><p class="noindent">[<a
|
|
href="userhtmlsu24.html" >next</a>] [<a
|
|
href="userhtmlsu19.html" >prev</a>] [<a
|
|
href="userhtmlsu19.html#tailuserhtmlsu19.html" >prev-tail</a>] [<a
|
|
href="userhtmlsu17.html#tailuserhtmlsu20.html">tail</a>] [<a
|
|
href="userhtmlsu12.html#userhtmlsu23.html" >up</a>] </p></div>
|
|
<h4 class="subsectionHead"><span class="titlemark">4.11 </span> <a
|
|
id="x29-660004.11"></a>psb_normi — Infinity Norm of Sparse Matrix</h4>
|
|
<!--l. 868--><p class="noindent" >This function computes the infinity-norm of a matrix <span
|
|
class="cmmi-10">A</span>:<br
|
|
class="newline" />
|
|
<center class="par-math-display" >
|
|
<img
|
|
src="userhtml17x.png" alt="nrmi ← ∥A∥∞
|
|
" class="par-math-display" ></center>
|
|
<!--l. 870--><p class="nopar" > where:
|
|
<dl class="description"><dt class="description">
|
|
<span
|
|
class="cmmi-10">A</span> </dt><dd
|
|
class="description">represents the global matrix <span
|
|
class="cmmi-10">A</span></dd></dl>
|
|
<div class="table">
|
|
|
|
|
|
|
|
<!--l. 876--><p class="indent" > <a
|
|
id="x29-66001r11"></a><hr class="float"><div class="float"
|
|
>
|
|
|
|
|
|
|
|
<div class="center"
|
|
>
|
|
<!--l. 877--><p class="noindent" >
|
|
<div class="tabular"> <table id="TBL-11" class="tabular"
|
|
cellspacing="0" cellpadding="0"
|
|
><colgroup id="TBL-11-1g"><col
|
|
id="TBL-11-1"><col
|
|
id="TBL-11-2"></colgroup><tr
|
|
class="hline"><td><hr></td><td><hr></td></tr><tr
|
|
style="vertical-align:baseline;" id="TBL-11-1-"><td style="white-space:nowrap; text-align:left;" id="TBL-11-1-1"
|
|
class="td11"><span
|
|
class="cmmi-10">A </span></td><td style="white-space:nowrap; text-align:left;" id="TBL-11-1-2"
|
|
class="td11"><span
|
|
class="cmbx-10">Function </span></td></tr><tr
|
|
class="hline"><td><hr></td><td><hr></td></tr><tr
|
|
style="vertical-align:baseline;" id="TBL-11-2-"><td style="white-space:nowrap; text-align:left;" id="TBL-11-2-1"
|
|
class="td11">Short Precision Real </td><td style="white-space:nowrap; text-align:left;" id="TBL-11-2-2"
|
|
class="td11">psb_spnrmi</td>
|
|
</tr><tr
|
|
style="vertical-align:baseline;" id="TBL-11-3-"><td style="white-space:nowrap; text-align:left;" id="TBL-11-3-1"
|
|
class="td11">Long Precision Real </td><td style="white-space:nowrap; text-align:left;" id="TBL-11-3-2"
|
|
class="td11">psb_spnrmi</td>
|
|
</tr><tr
|
|
style="vertical-align:baseline;" id="TBL-11-4-"><td style="white-space:nowrap; text-align:left;" id="TBL-11-4-1"
|
|
class="td11">Short Precision Complex</td><td style="white-space:nowrap; text-align:left;" id="TBL-11-4-2"
|
|
class="td11">psb_spnrmi</td>
|
|
</tr><tr
|
|
style="vertical-align:baseline;" id="TBL-11-5-"><td style="white-space:nowrap; text-align:left;" id="TBL-11-5-1"
|
|
class="td11">Long Precision Complex </td><td style="white-space:nowrap; text-align:left;" id="TBL-11-5-2"
|
|
class="td11">psb_spnrmi</td>
|
|
</tr><tr
|
|
class="hline"><td><hr></td><td><hr></td></tr><tr
|
|
style="vertical-align:baseline;" id="TBL-11-6-"><td style="white-space:nowrap; text-align:left;" id="TBL-11-6-1"
|
|
class="td11"> </td></tr></table></div></div>
|
|
<br /> <div class="caption"
|
|
><span class="id">Table 11: </span><span
|
|
class="content">Data types</span></div><!--tex4ht:label?: x29-66001r11 -->
|
|
|
|
|
|
|
|
</div><hr class="endfloat" />
|
|
</div>
|
|
|
|
|
|
|
|
<pre class="verbatim" id="verbatim-32">
|
|
psb_spnrmi(A, desc_a, info)
|
|
psb_normi(A, desc_a, info)
|
|
</pre>
|
|
<!--l. 895--><p class="nopar" >
|
|
<dl class="description"><dt class="description">
|
|
<span
|
|
class="cmbx-10">Type:</span> </dt><dd
|
|
class="description">Synchronous.
|
|
</dd><dt class="description">
|
|
<span
|
|
class="cmbx-10">On Entry</span> </dt><dd
|
|
class="description">
|
|
</dd><dt class="description">
|
|
<span
|
|
class="cmbx-10">a</span> </dt><dd
|
|
class="description">the local portion of the global sparse matrix <span
|
|
class="cmmi-10">A</span>. <br
|
|
class="newline" />Scope: <span
|
|
class="cmbx-10">local </span><br
|
|
class="newline" />Type: <span
|
|
class="cmbx-10">required</span><br
|
|
class="newline" />Intent: <span
|
|
class="cmbx-10">in</span>.<br
|
|
class="newline" />Specified as: an object of type <a
|
|
href="userhtmlsu6.html#spdata"><span
|
|
class="cmtt-10">psb</span><span
|
|
class="cmtt-10">_Tspmat</span><span
|
|
class="cmtt-10">_type</span></a>.
|
|
</dd><dt class="description">
|
|
<span
|
|
class="cmbx-10">desc</span><span
|
|
class="cmbx-10">_a</span> </dt><dd
|
|
class="description">contains data structures for communications.<br
|
|
class="newline" />Scope: <span
|
|
class="cmbx-10">local </span><br
|
|
class="newline" />Type: <span
|
|
class="cmbx-10">required</span><br
|
|
class="newline" />Intent: <span
|
|
class="cmbx-10">in</span>.<br
|
|
class="newline" />Specified as: an object of type <a
|
|
href="userhtmlsu5.html#descdata"><span
|
|
class="cmtt-10">psb</span><span
|
|
class="cmtt-10">_desc</span><span
|
|
class="cmtt-10">_type</span></a>.
|
|
</dd><dt class="description">
|
|
<span
|
|
class="cmbx-10">On Return</span> </dt><dd
|
|
class="description">
|
|
</dd><dt class="description">
|
|
<span
|
|
class="cmbx-10">Function value</span> </dt><dd
|
|
class="description">is the infinity-norm of sparse submatrix <span
|
|
class="cmmi-10">A</span>.<br
|
|
class="newline" />Scope: <span
|
|
class="cmbx-10">global </span><br
|
|
class="newline" />Specified as: a long precision real number.
|
|
</dd><dt class="description">
|
|
<span
|
|
class="cmbx-10">info</span> </dt><dd
|
|
class="description">Error code.<br
|
|
class="newline" />Scope: <span
|
|
class="cmbx-10">local </span><br
|
|
class="newline" />Type: <span
|
|
class="cmbx-10">required </span><br
|
|
class="newline" />Intent: <span
|
|
class="cmbx-10">out</span>.<br
|
|
class="newline" />An integer value; 0 means no error has been detected.</dd></dl>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<!--l. 930--><div class="crosslinks"><p class="noindent">[<a
|
|
href="userhtmlsu24.html" >next</a>] [<a
|
|
href="userhtmlsu19.html" >prev</a>] [<a
|
|
href="userhtmlsu19.html#tailuserhtmlsu19.html" >prev-tail</a>] [<a
|
|
href="userhtmlsu20.html" >front</a>] [<a
|
|
href="userhtmlsu12.html#userhtmlsu23.html" >up</a>] </p></div>
|
|
<!--l. 930--><p class="indent" > <a
|
|
id="tailuserhtmlsu20.html"></a>
|
|
</body></html>
|