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<title>linbox: Sum< _Blackbox1, _Blackbox2 > Class Template Reference</title>
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<li class="navelem"><a class="el" href="namespace_lin_box.html">LinBox</a> </li>
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<a href="#pub-methods">Public Member Functions</a> </div>
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<div class="title">Sum< _Blackbox1, _Blackbox2 > Class Template Reference<div class="ingroups"><a class="el" href="group__blackbox.html">blackbox</a></div></div> </div>
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<!-- doxytag: class="LinBox::Sum" --><!-- doxytag: inherits="LinBox::BlackboxInterface" -->
<p>blackbox of a matrix sum without copying.
<a href="class_lin_box_1_1_sum.html#details">More...</a></p>
<p><code>#include <sum.h></code></p>
<div id="dynsection-0" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;">
<img id="dynsection-0-trigger" src="closed.png"/> Inheritance diagram for Sum< _Blackbox1, _Blackbox2 >:</div>
<div id="dynsection-0-summary" class="dynsummary" style="display:block;">
</div>
<div id="dynsection-0-content" class="dyncontent" style="display:none;">
<div class="center">
<img src="class_lin_box_1_1_sum.png" usemap="#Sum< _Blackbox1, _Blackbox2 >_map" alt=""/>
<map id="Sum< _Blackbox1, _Blackbox2 >_map" name="Sum< _Blackbox1, _Blackbox2 >_map">
<area href="class_lin_box_1_1_blackbox_interface.html" title="This blackbox base class exists solely to aid documentation organization." alt="BlackboxInterface" shape="rect" coords="0,0,199,24"/>
</map>
</div></div>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_lin_box_1_1_sum.html#a9a1e514b41c86e29df9ad470b047fc9f">Sum</a> (const Blackbox1 &A, const Blackbox2 &B)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor from black box matrices. <a href="#a9a1e514b41c86e29df9ad470b047fc9f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_lin_box_1_1_sum.html#a10b3f77e404cbe67454fb982d691d6e9">Sum</a> (const Blackbox1 *A_ptr, const Blackbox2 *B_ptr)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor from black box pointers. <a href="#a10b3f77e404cbe67454fb982d691d6e9"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_lin_box_1_1_sum.html#ae86c1427722f45b2f6af1a2466a7c8ba">Sum</a> (const <a class="el" href="class_lin_box_1_1_sum.html">Sum</a>< Blackbox1, Blackbox2 > &M)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor. <a href="#ae86c1427722f45b2f6af1a2466a7c8ba"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad6d44b68000e7bca2e13c059b2bde719"></a><!-- doxytag: member="LinBox::Sum::~Sum" ref="ad6d44b68000e7bca2e13c059b2bde719" args="(void)" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="class_lin_box_1_1_sum.html#ad6d44b68000e7bca2e13c059b2bde719">~Sum</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br/></td></tr>
<tr><td class="memTemplParams" colspan="2">template<class OutVector , class InVector > </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">OutVector & </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_lin_box_1_1_sum.html#aa37d57c030b1db0c198478268aa3cc15">apply</a> (OutVector &y, const InVector &x) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Application of BlackBox matrix. <a href="#aa37d57c030b1db0c198478268aa3cc15"></a><br/></td></tr>
<tr><td class="memTemplParams" colspan="2">template<class OutVector , class InVector > </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">OutVector & </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_lin_box_1_1_sum.html#ac1a9817268900b78faa5a6eb17d9badf">applyTranspose</a> (OutVector &y, const InVector &x) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Application of BlackBox matrix transpose. <a href="#ac1a9817268900b78faa5a6eb17d9badf"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_lin_box_1_1_sum.html#a09202c1aaa6c5a4c8e69a2339a27bcfe">rowdim</a> (void) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Retreive row dimensions of BlackBox matrix. <a href="#a09202c1aaa6c5a4c8e69a2339a27bcfe"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_lin_box_1_1_sum.html#a63d5df22c5024e979e3462155d0fe814">coldim</a> (void) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Retreive column dimensions of BlackBox matrix. <a href="#a63d5df22c5024e979e3462155d0fe814"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><h3>template<class _Blackbox1, class _Blackbox2><br/>
class LinBox::Sum< _Blackbox1, _Blackbox2 ></h3>
<p>blackbox of a matrix sum without copying. </p>
<p>Adds only at apply time. Given two black boxes A and B of the same dimensions, form a black box representing A+B, i.e., Sum(A,B)x=(A+B)x=Ax+Bx </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">Vector</td><td><a class="el" href="namespace_lin_box.html">LinBox</a> dense or sparse vector of field elements </td></tr>
</table>
</dd>
</dl>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a9a1e514b41c86e29df9ad470b047fc9f"></a><!-- doxytag: member="LinBox::Sum::Sum" ref="a9a1e514b41c86e29df9ad470b047fc9f" args="(const Blackbox1 &A, const Blackbox2 &B)" -->
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<table class="memname">
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<td class="memname"><a class="el" href="class_lin_box_1_1_sum.html">Sum</a> </td>
<td>(</td>
<td class="paramtype">const Blackbox1 & </td>
<td class="paramname"><em>A</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const Blackbox2 & </td>
<td class="paramname"><em>B</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Constructor from black box matrices. </p>
<p>This constructor creates a matrix that is the sum, A + B, of black box matrices. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">A,B,:</td><td>black box matrices. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a10b3f77e404cbe67454fb982d691d6e9"></a><!-- doxytag: member="LinBox::Sum::Sum" ref="a10b3f77e404cbe67454fb982d691d6e9" args="(const Blackbox1 *A_ptr, const Blackbox2 *B_ptr)" -->
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<div class="memproto">
<table class="memname">
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<td class="memname"><a class="el" href="class_lin_box_1_1_sum.html">Sum</a> </td>
<td>(</td>
<td class="paramtype">const Blackbox1 * </td>
<td class="paramname"><em>A_ptr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const Blackbox2 * </td>
<td class="paramname"><em>B_ptr</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Constructor from black box pointers. </p>
<p>This constructor creates a matrix that is the sum, A + B, of black box matrices. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">A_ptr,B_ptr,:</td><td>pointers to black box matrices. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ae86c1427722f45b2f6af1a2466a7c8ba"></a><!-- doxytag: member="LinBox::Sum::Sum" ref="ae86c1427722f45b2f6af1a2466a7c8ba" args="(const Sum< Blackbox1, Blackbox2 > &M)" -->
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<table class="memname">
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<td class="memname"><a class="el" href="class_lin_box_1_1_sum.html">Sum</a> </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_lin_box_1_1_sum.html">Sum</a>< Blackbox1, Blackbox2 > & </td>
<td class="paramname"><em>M</em></td><td>)</td>
<td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Copy constructor. </p>
<p>Creates new black box objects in dynamic memory. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">M</td><td>constant reference to compose black box matrix </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="aa37d57c030b1db0c198478268aa3cc15"></a><!-- doxytag: member="LinBox::Sum::apply" ref="aa37d57c030b1db0c198478268aa3cc15" args="(OutVector &y, const InVector &x) const " -->
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<div class="memproto">
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<td class="memname">OutVector& apply </td>
<td>(</td>
<td class="paramtype">OutVector & </td>
<td class="paramname"><em>y</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const InVector & </td>
<td class="paramname"><em>x</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Application of BlackBox matrix. </p>
<p><img class="formulaInl" alt="$y= (A+B)\cdot x$" src="form_43.png"/>. Requires one vector conforming to the <a class="el" href="namespace_lin_box.html">LinBox</a> vector <a class="el" href="_archetypes.html">archetype</a>. Required by abstract base class. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>reference to vector y containing output. </dd></dl>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>constant reference to vector to contain input </td></tr>
<tr><td class="paramname">y</td><td></td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ac1a9817268900b78faa5a6eb17d9badf"></a><!-- doxytag: member="LinBox::Sum::applyTranspose" ref="ac1a9817268900b78faa5a6eb17d9badf" args="(OutVector &y, const InVector &x) const " -->
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<td class="memname">OutVector& applyTranspose </td>
<td>(</td>
<td class="paramtype">OutVector & </td>
<td class="paramname"><em>y</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const InVector & </td>
<td class="paramname"><em>x</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Application of BlackBox matrix transpose. </p>
<p><img class="formulaInl" alt="$ y= (A+B)^T\cdot x$" src="form_44.png"/>. Requires one vector conforming to the <a class="el" href="namespace_lin_box.html">LinBox</a> vector <a class="el" href="_archetypes.html">archetype</a>. Required by abstract base class. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>reference to vector y containing output. </dd></dl>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>constant reference to vector to contain input </td></tr>
<tr><td class="paramname">y</td><td></td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a09202c1aaa6c5a4c8e69a2339a27bcfe"></a><!-- doxytag: member="LinBox::Sum::rowdim" ref="a09202c1aaa6c5a4c8e69a2339a27bcfe" args="(void) const " -->
<div class="memitem">
<div class="memproto">
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<tr>
<td class="memname">size_t rowdim </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Retreive row dimensions of BlackBox matrix. </p>
<p>This may be needed for applying preconditioners. Required by abstract base class. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>integer number of rows of black box matrix. </dd></dl>
</div>
</div>
<a class="anchor" id="a63d5df22c5024e979e3462155d0fe814"></a><!-- doxytag: member="LinBox::Sum::coldim" ref="a63d5df22c5024e979e3462155d0fe814" args="(void) const " -->
<div class="memitem">
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<td class="memname">size_t coldim </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Retreive column dimensions of BlackBox matrix. </p>
<p>Required by abstract base class. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>integer number of columns of black box matrix. </dd></dl>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>sum.h</li>
</ul>
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