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16<h1>work/mixpp/bdm/math/libDC.h</h1><a href="libDC_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
17<a name="l00013"></a>00013 <span class="preprocessor">#ifndef DC_H</span>
18<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#define DC_H</span>
19<a name="l00015"></a>00015 <span class="preprocessor"></span>
20<a name="l00016"></a>00016 <span class="preprocessor">#include &lt;itpp/itbase.h&gt;</span>
21<a name="l00017"></a>00017
22<a name="l00018"></a>00018 <span class="keyword">using namespace </span>itpp;
23<a name="l00019"></a>00019
24<a name="l00024"></a><a class="code" href="classsqmat.html">00024</a> <span class="keyword">class </span><a class="code" href="classsqmat.html" title="Virtual class for representation of double symmetric matrices in square-root form...">sqmat</a>
25<a name="l00025"></a>00025 {
26<a name="l00026"></a>00026         <span class="keyword">public</span>:
27<a name="l00034"></a>00034                 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsqmat.html#b223484796661f2dadb5607a86ce0581">opupdt</a> ( <span class="keyword">const</span> vec &amp;v, <span class="keywordtype">double</span> w ) =0;
28<a name="l00035"></a>00035
29<a name="l00039"></a>00039                 <span class="keyword">virtual</span> mat <a class="code" href="classsqmat.html#9a5b6fddfeb42339e1dc9b978a2590fc" title="Conversion to full matrix.">to_mat</a>() =0;
30<a name="l00040"></a>00040
31<a name="l00045"></a>00045                 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsqmat.html#faa3bc90be142adde9cf74f573c70157" title="Inplace symmetric multiplication by a SQUARE matrix $C$, i.e. $V = C*V*C&amp;#39;$.">mult_sym</a> ( <span class="keyword">const</span> mat &amp;C, <span class="keywordtype">bool</span> trans=<span class="keyword">true</span> ) =0;
32<a name="l00046"></a>00046
33<a name="l00047"></a>00047
34<a name="l00052"></a>00052                 <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classsqmat.html#5c852819589f74cdaefbd648c0ce8547" title="Logarithm of a determinant.">logdet</a>() =0;
35<a name="l00053"></a>00053
36<a name="l00059"></a>00059                 <span class="keyword">virtual</span> vec <a class="code" href="classsqmat.html#b5236c8a050199e1a9d338b0da1a08d2" title="Multiplies square root of $V$ by vector $x$.">sqrt_mult</a> ( vec &amp;v ) =0;
37<a name="l00060"></a>00060
38<a name="l00065"></a>00065                 <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classsqmat.html#44e079468bc8bfccf634dc85b32ba6be" title="Evaluates quadratic form $x= v&amp;#39;*V*v$;.">qform</a> ( vec &amp;v ) =0;
39<a name="l00066"></a>00066
40<a name="l00067"></a>00067 <span class="comment">//      //! easy version of the</span>
41<a name="l00068"></a>00068 <span class="comment">//      sqmat inv();</span>
42<a name="l00069"></a>00069
43<a name="l00071"></a>00071                 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsqmat.html#6fca246f9eabbdeb8cac03030e826b5e" title="Clearing matrix so that it corresponds to zeros.">clear</a>() =0;
44<a name="l00072"></a>00072
45<a name="l00074"></a><a class="code" href="classsqmat.html#ecc2e2540f95a04f4449842588170f5b">00074</a>                 <span class="keywordtype">int</span> <a class="code" href="classsqmat.html#ecc2e2540f95a04f4449842588170f5b" title="Reimplementing common functions of mat: cols().">cols</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> dim;};
46<a name="l00075"></a>00075
47<a name="l00077"></a><a class="code" href="classsqmat.html#071e80ced9cc3b8cbb360fa7462eb646">00077</a>                 <span class="keywordtype">int</span> <a class="code" href="classsqmat.html#071e80ced9cc3b8cbb360fa7462eb646" title="Reimplementing common functions of mat: cols().">rows</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> dim;};
48<a name="l00078"></a>00078
49<a name="l00079"></a>00079         <span class="keyword">protected</span>:
50<a name="l00080"></a>00080                 <span class="keywordtype">int</span> dim;
51<a name="l00081"></a>00081 };
52<a name="l00082"></a>00082
53<a name="l00083"></a>00083
54<a name="l00088"></a><a class="code" href="classfsqmat.html">00088</a> <span class="keyword">class </span><a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a>: <span class="keyword">public</span> <a class="code" href="classsqmat.html" title="Virtual class for representation of double symmetric matrices in square-root form...">sqmat</a>
55<a name="l00089"></a>00089 {
56<a name="l00090"></a>00090         <span class="keyword">protected</span>:
57<a name="l00091"></a>00091                 mat M;
58<a name="l00092"></a>00092         <span class="keyword">public</span>:
59<a name="l00093"></a>00093                 <span class="keywordtype">void</span> <a class="code" href="classfsqmat.html#b36530e155667fe9f1bd58394e50c65a">opupdt</a> ( <span class="keyword">const</span> vec &amp;v, <span class="keywordtype">double</span> w );
60<a name="l00094"></a>00094                 mat <a class="code" href="classfsqmat.html#cedf4f048309056f4262c930914dfda8" title="Conversion to full matrix.">to_mat</a>() ;
61<a name="l00095"></a>00095                 <span class="keywordtype">void</span> <a class="code" href="classfsqmat.html#acc5d2d0a243f1de6d0106065f01f518" title="Inplace symmetric multiplication by a SQUARE matrix $C$, i.e. $V = C*V*C&amp;#39;$.">mult_sym</a> ( <span class="keyword">const</span> mat &amp;C, <span class="keywordtype">bool</span> trans=<span class="keyword">false</span> );
62<a name="l00096"></a>00096                 <span class="keywordtype">void</span> <a class="code" href="classfsqmat.html#acc5d2d0a243f1de6d0106065f01f518" title="Inplace symmetric multiplication by a SQUARE matrix $C$, i.e. $V = C*V*C&amp;#39;$.">mult_sym</a> ( <span class="keyword">const</span> mat &amp;C, <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a> &amp;U, <span class="keywordtype">bool</span> trans=<span class="keyword">false</span> );
63<a name="l00097"></a>00097                 <span class="keywordtype">void</span> <a class="code" href="classfsqmat.html#cfa4c359483d2322f32d1d50050f8ac4" title="Clearing matrix so that it corresponds to zeros.">clear</a>();
64<a name="l00098"></a>00098
65<a name="l00099"></a>00099
66<a name="l00100"></a>00100                 <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a>(); <span class="comment">// mat will be initialized OK</span>
67<a name="l00102"></a>00102 <span class="comment"></span>                <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a> ( <span class="keyword">const</span> mat &amp;M );
68<a name="l00103"></a>00103
69<a name="l00109"></a>00109                 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classfsqmat.html#9fa853e1ca28f2a1a1c43377e798ecb1" title="Matrix inversion preserving the chosen form.">inv</a> ( <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a> &amp;Inv );
70<a name="l00110"></a>00110
71<a name="l00111"></a><a class="code" href="classfsqmat.html#bf212272ec195ad2706e2bf4d8e7c9b3">00111</a>                 <span class="keywordtype">double</span> <a class="code" href="classfsqmat.html#bf212272ec195ad2706e2bf4d8e7c9b3" title="Logarithm of a determinant.">logdet</a>() {<span class="keywordflow">return</span> log ( det ( M ) );};
72<a name="l00112"></a><a class="code" href="classfsqmat.html#6d047b9f7a27dfc093303a13cc9b1fba">00112</a>                 <span class="keywordtype">double</span> <a class="code" href="classfsqmat.html#6d047b9f7a27dfc093303a13cc9b1fba" title="Evaluates quadratic form $x= v&amp;#39;*V*v$;.">qform</a> ( vec &amp;v ) {<span class="keywordflow">return</span> ( v* ( M*v ) );};
73<a name="l00113"></a><a class="code" href="classfsqmat.html#6648dd4291b809cce14e8497d0433ad3">00113</a>                 vec <a class="code" href="classfsqmat.html#6648dd4291b809cce14e8497d0433ad3" title="Multiplies square root of $V$ by vector $x$.">sqrt_mult</a> ( vec &amp;v ) {it_error ( <span class="stringliteral">"not implemented"</span> );<span class="keywordflow">return</span> v;};
74<a name="l00114"></a>00114
75<a name="l00115"></a>00115                 <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a>&amp; operator += ( <span class="keyword">const</span> <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a> &amp;A ) {M+=A.<a class="code" href="classfsqmat.html#a7a1fcb9aae19d1e4daddfc9c22ce453">M</a>;<span class="keywordflow">return</span> *<span class="keyword">this</span>;};
76<a name="l00116"></a>00116                 <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a>&amp; operator -= ( <span class="keyword">const</span> <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a> &amp;A ) {M-=A.<a class="code" href="classfsqmat.html#a7a1fcb9aae19d1e4daddfc9c22ce453">M</a>;<span class="keywordflow">return</span> *<span class="keyword">this</span>;};
77<a name="l00117"></a>00117                 <a class="code" href="classfsqmat.html" title="Fake sqmat. This class maps sqmat operations to operations on full matrix.">fsqmat</a>&amp; operator *= ( <span class="keywordtype">double</span> x ) {M*=x;<span class="keywordflow">return</span> *<span class="keyword">this</span>;};
78<a name="l00118"></a>00118 <span class="comment">//              fsqmat&amp; operator = ( const fsqmat &amp;A) {M=A.M; return *this;};</span>
79<a name="l00119"></a>00119 };
80<a name="l00120"></a>00120
81<a name="l00121"></a>00121 <span class="keyword">class </span>ldmat: <a class="code" href="classsqmat.html" title="Virtual class for representation of double symmetric matrices in square-root form...">sqmat</a>
82<a name="l00122"></a>00122 {
83<a name="l00123"></a>00123         <span class="keyword">public</span>:
84<a name="l00124"></a>00124
85<a name="l00126"></a>00126                 ldmat ( <span class="keyword">const</span> mat &amp;L, <span class="keyword">const</span> vec &amp;D );
86<a name="l00128"></a>00128                 ldmat ( mat V );
87<a name="l00130"></a>00130                 ldmat ( vec D0 );
88<a name="l00131"></a>00131                 ldmat ();
89<a name="l00132"></a>00132
90<a name="l00133"></a>00133                 <span class="comment">// Reimplementation of compulsory operatios</span>
91<a name="l00134"></a>00134
92<a name="l00135"></a>00135                 <span class="keywordtype">void</span> <a class="code" href="classsqmat.html#b223484796661f2dadb5607a86ce0581">opupdt</a> ( <span class="keyword">const</span> vec &amp;v, <span class="keywordtype">double</span> w );
93<a name="l00136"></a>00136                 mat <a class="code" href="classsqmat.html#9a5b6fddfeb42339e1dc9b978a2590fc" title="Conversion to full matrix.">to_mat</a>();
94<a name="l00137"></a>00137                 <span class="keywordtype">void</span> <a class="code" href="classsqmat.html#faa3bc90be142adde9cf74f573c70157" title="Inplace symmetric multiplication by a SQUARE matrix $C$, i.e. $V = C*V*C&amp;#39;$.">mult_sym</a> ( <span class="keyword">const</span> mat &amp;C, <span class="keywordtype">bool</span> trans=<span class="keyword">false</span> );
95<a name="l00138"></a>00138                 <span class="keywordtype">void</span> <span class="keyword">add</span> ( <span class="keyword">const</span> ldmat &amp;ld2, <span class="keywordtype">double</span> w=1.0 );
96<a name="l00139"></a>00139                 <span class="keywordtype">double</span> <a class="code" href="classsqmat.html#5c852819589f74cdaefbd648c0ce8547" title="Logarithm of a determinant.">logdet</a>();
97<a name="l00140"></a>00140                 <span class="keywordtype">double</span> <a class="code" href="classsqmat.html#44e079468bc8bfccf634dc85b32ba6be" title="Evaluates quadratic form $x= v&amp;#39;*V*v$;.">qform</a> ( vec &amp;v );
98<a name="l00141"></a>00141 <span class="comment">//      sqmat&amp; operator -= ( const sqmat &amp; ld2 );</span>
99<a name="l00142"></a>00142                 <span class="keywordtype">void</span> <a class="code" href="classsqmat.html#6fca246f9eabbdeb8cac03030e826b5e" title="Clearing matrix so that it corresponds to zeros.">clear</a>();
100<a name="l00143"></a>00143                 <span class="keywordtype">int</span> <a class="code" href="classsqmat.html#ecc2e2540f95a04f4449842588170f5b" title="Reimplementing common functions of mat: cols().">cols</a>();
101<a name="l00144"></a>00144                 <span class="keywordtype">int</span> <a class="code" href="classsqmat.html#071e80ced9cc3b8cbb360fa7462eb646" title="Reimplementing common functions of mat: cols().">rows</a>();
102<a name="l00145"></a>00145                 vec <a class="code" href="classsqmat.html#b5236c8a050199e1a9d338b0da1a08d2" title="Multiplies square root of $V$ by vector $x$.">sqrt_mult</a> ( vec &amp;v );
103<a name="l00146"></a>00146
104<a name="l00152"></a>00152                 <span class="keyword">virtual</span> <span class="keywordtype">void</span> inv ( ldmat &amp;Inv );
105<a name="l00153"></a>00153
106<a name="l00159"></a>00159                 <span class="keywordtype">void</span> <a class="code" href="classsqmat.html#faa3bc90be142adde9cf74f573c70157" title="Inplace symmetric multiplication by a SQUARE matrix $C$, i.e. $V = C*V*C&amp;#39;$.">mult_sym</a> ( <span class="keyword">const</span> mat &amp;C, ldmat &amp;U, <span class="keywordtype">bool</span> trans=<span class="keyword">false</span> );
107<a name="l00160"></a>00160
108<a name="l00169"></a>00169                 <span class="keywordtype">void</span> ldform ( mat &amp;A, vec &amp;D0 );
109<a name="l00170"></a>00170
110<a name="l00171"></a>00171                 ldmat&amp; operator += ( <span class="keyword">const</span> ldmat &amp;ldA );
111<a name="l00172"></a>00172                 ldmat&amp; operator -= ( <span class="keyword">const</span> ldmat &amp;ldA );
112<a name="l00173"></a>00173                 ldmat&amp; operator *= ( <span class="keywordtype">double</span> x );
113<a name="l00174"></a>00174
114<a name="l00175"></a>00175                 <span class="keyword">friend</span> std::ostream &amp;operator&lt;&lt; ( std::ostream &amp;os, ldmat &amp;sq );
115<a name="l00176"></a>00176
116<a name="l00177"></a>00177         <span class="keyword">protected</span>:
117<a name="l00178"></a>00178                 vec D;
118<a name="l00179"></a>00179                 mat L;
119<a name="l00180"></a>00180
120<a name="l00181"></a>00181 };
121<a name="l00182"></a>00182
122<a name="l00184"></a>00184
123<a name="l00185"></a>00185 <span class="keyword">inline</span> ldmat&amp; ldmat::operator += ( <span class="keyword">const</span> ldmat &amp;ldA )  {this-&gt;<span class="keyword">add</span> ( ldA );<span class="keywordflow">return</span> *<span class="keyword">this</span>;}
124<a name="l00186"></a>00186 <span class="keyword">inline</span> ldmat&amp; ldmat::operator -= ( <span class="keyword">const</span> ldmat &amp;ldA )  {this-&gt;<span class="keyword">add</span> ( ldA,-1.0 );<span class="keywordflow">return</span> *<span class="keyword">this</span>;}
125<a name="l00187"></a>00187 <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classsqmat.html#ecc2e2540f95a04f4449842588170f5b" title="Reimplementing common functions of mat: cols().">ldmat::cols</a>() {<span class="keywordflow">return</span> dim;}
126<a name="l00188"></a>00188 <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classsqmat.html#071e80ced9cc3b8cbb360fa7462eb646" title="Reimplementing common functions of mat: cols().">ldmat::rows</a>() {<span class="keywordflow">return</span> dim;}
127<a name="l00189"></a>00189
128<a name="l00190"></a>00190 <span class="preprocessor">#endif // DC_H</span>
129</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Mon Feb 18 21:48:39 2008 for mixpp by&nbsp;
130<a href="http://www.doxygen.org/index.html">
131<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address>
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