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<h1>include/sphinxbase/matrix.h</h1> </div>
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<a href="matrix_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/* ====================================================================</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (c) 1997-2000 Carnegie Mellon University. All rights </span>
<a name="l00004"></a>00004 <span class="comment"> * reserved.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00007"></a>00007 <span class="comment"> * modification, are permitted provided that the following conditions</span>
<a name="l00008"></a>00008 <span class="comment"> * are met:</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
<a name="l00011"></a>00011 <span class="comment"> * notice, this list of conditions and the following disclaimer. </span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00014"></a>00014 <span class="comment"> * notice, this list of conditions and the following disclaimer in</span>
<a name="l00015"></a>00015 <span class="comment"> * the documentation and/or other materials provided with the</span>
<a name="l00016"></a>00016 <span class="comment"> * distribution.</span>
<a name="l00017"></a>00017 <span class="comment"> *</span>
<a name="l00018"></a>00018 <span class="comment"> * This work was supported in part by funding from the Defense Advanced </span>
<a name="l00019"></a>00019 <span class="comment"> * Research Projects Agency and the National Science Foundation of the </span>
<a name="l00020"></a>00020 <span class="comment"> * United States of America, and the CMU Sphinx Speech Consortium.</span>
<a name="l00021"></a>00021 <span class="comment"> *</span>
<a name="l00022"></a>00022 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND </span>
<a name="l00023"></a>00023 <span class="comment"> * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, </span>
<a name="l00024"></a>00024 <span class="comment"> * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span>
<a name="l00025"></a>00025 <span class="comment"> * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY</span>
<a name="l00026"></a>00026 <span class="comment"> * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00027"></a>00027 <span class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT </span>
<a name="l00028"></a>00028 <span class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, </span>
<a name="l00029"></a>00029 <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY </span>
<a name="l00030"></a>00030 <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT </span>
<a name="l00031"></a>00031 <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE </span>
<a name="l00032"></a>00032 <span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00033"></a>00033 <span class="comment"> *</span>
<a name="l00034"></a>00034 <span class="comment"> * ====================================================================</span>
<a name="l00035"></a>00035 <span class="comment"> *</span>
<a name="l00036"></a>00036 <span class="comment"> */</span>
<a name="l00037"></a>00037 <span class="comment">/*********************************************************************</span>
<a name="l00038"></a>00038 <span class="comment"> *</span>
<a name="l00039"></a>00039 <span class="comment"> * File: matrix.h</span>
<a name="l00040"></a>00040 <span class="comment"> * </span>
<a name="l00041"></a>00041 <span class="comment"> * Description: Matrix and linear algebra functions</span>
<a name="l00042"></a>00042 <span class="comment"> * </span>
<a name="l00043"></a>00043 <span class="comment"> * Author: </span>
<a name="l00044"></a>00044 <span class="comment"> * </span>
<a name="l00045"></a>00045 <span class="comment"> *********************************************************************/</span>
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="preprocessor">#ifndef MATRIX_H</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor">#define MATRIX_H</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span>
<a name="l00060"></a>00060 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00062"></a>00062 <span class="preprocessor">#endif</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="preprocessor">#if 0</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="comment">/* Fool Emacs. */</span>
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066 <span class="preprocessor">#endif</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span>
<a name="l00068"></a>00068 <span class="comment">/* Win32/WinCE DLL gunk */</span>
<a name="l00069"></a>00069 <span class="preprocessor">#include <sphinxbase/sphinxbase_export.h></span>
<a name="l00070"></a>00070 <span class="preprocessor">#include <sphinxbase/prim_type.h></span>
<a name="l00071"></a>00071
<a name="l00072"></a>00072
<a name="l00080"></a>00080 SPHINXBASE_EXPORT <span class="keywordtype">void</span> <a class="code" href="matrix_8h.html#af209fc89926fd184f5a02919ec7c9818" title="Norm an array.">norm_3d</a>(float32 ***arr, uint32 d1, uint32 d2, uint32 d3);
<a name="l00081"></a>00081
<a name="l00090"></a>00090 SPHINXBASE_EXPORT <span class="keywordtype">void</span>
<a name="l00091"></a>00091 <a class="code" href="matrix_8h.html#abf02a99f3dac599148c0e1ee5640b568" title="Floor 3-d array.">accum_3d</a>(float32 ***out, float32 ***in, uint32 d1, uint32 d2, uint32 d3);
<a name="l00092"></a>00092
<a name="l00098"></a>00098 SPHINXBASE_EXPORT <span class="keywordtype">void</span> <a class="code" href="matrix_8h.html#a859d32f6b8e86fb215f676245c8deeaf" title="Ensures that non-zero values x such that -band &lt; x &lt; band, band &gt; 0 are set to -band if x &l...">band_nz_1d</a>(float32 *v, uint32 d1, float32 band);
<a name="l00099"></a>00099
<a name="l00108"></a>00108 SPHINXBASE_EXPORT <span class="keywordtype">void</span> <a class="code" href="matrix_8h.html#a7b18b907fca64a8057f7406b8996d9c9" title="Floor 3-d array.">floor_nz_3d</a>(float32 ***m, uint32 d1, uint32 d2, uint32 d3, float32 floor);
<a name="l00109"></a>00109
<a name="l00116"></a>00116 SPHINXBASE_EXPORT <span class="keywordtype">void</span> <a class="code" href="matrix_8h.html#a0ec7000944b98cce317e0b63ce437b99" title="Floor 1-d array.">floor_nz_1d</a>(float32 *v, uint32 d1, float32 floor);
<a name="l00117"></a>00117
<a name="l00130"></a>00130 SPHINXBASE_EXPORT
<a name="l00131"></a>00131 float64 <a class="code" href="matrix_8h.html#a0c810028195f6078c9e99f3b5c29c42b" title="Calculate the determinant of a positive definite matrix.">determinant</a>(float32 **a, int32 len);
<a name="l00132"></a>00132
<a name="l00143"></a>00143 SPHINXBASE_EXPORT
<a name="l00144"></a>00144 int32 <a class="code" href="matrix_8h.html#aa20f437dbe9fcd6f0adda31f181bfbea" title="Invert (if possible) a positive definite matrix.">invert</a>(float32 **out_ainv, float32 **a, int32 len);
<a name="l00145"></a>00145
<a name="l00157"></a>00157 SPHINXBASE_EXPORT
<a name="l00158"></a>00158 int32 <a class="code" href="matrix_8h.html#a174a82dac39a15828af6c87edcba3708" title="Solve (if possible) a positive-definite system of linear equations AX=B for X.">solve</a>(float32 **a, float32 *b,
<a name="l00159"></a>00159 float32 *out_x, int32 n);
<a name="l00160"></a>00160
<a name="l00169"></a>00169 SPHINXBASE_EXPORT
<a name="l00170"></a>00170 <span class="keywordtype">void</span> <a class="code" href="matrix_8h.html#aa2d31d63ec277fd389d4ef51d3b2bc2b" title="Calculate the outer product of two vectors.">outerproduct</a>(float32 **out_a, float32 *x, float32 *y, int32 len);
<a name="l00171"></a>00171
<a name="l00179"></a>00179 SPHINXBASE_EXPORT
<a name="l00180"></a>00180 <span class="keywordtype">void</span> <a class="code" href="matrix_8h.html#acaaf5d2c02d9d12f10abc462ac65cde9" title="Multiply C=AB where A and B are symmetric matrices.">matrixmultiply</a>(float32 **out_c, <span class="comment">/* = */</span>
<a name="l00181"></a>00181 float32 **a, <span class="comment">/* * */</span> float32 **b,
<a name="l00182"></a>00182 int32 n);
<a name="l00183"></a>00183
<a name="l00190"></a>00190 SPHINXBASE_EXPORT
<a name="l00191"></a>00191 <span class="keywordtype">void</span> <a class="code" href="matrix_8h.html#adc8ee5f4e4792328e4f33309bc99ebfb" title="Multiply a symmetric matrix by a constant in-place.">scalarmultiply</a>(float32 **inout_a, float32 x, int32 n);
<a name="l00192"></a>00192
<a name="l00199"></a>00199 SPHINXBASE_EXPORT
<a name="l00200"></a>00200 <span class="keywordtype">void</span> <a class="code" href="matrix_8h.html#a545d251a51cc473bad38a83b2a05f61c" title="Add A += B.">matrixadd</a>(float32 **inout_a, float32 **b, int32 n);
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="preprocessor">#if 0</span>
<a name="l00203"></a>00203 <span class="preprocessor"></span>{ <span class="comment">/* Fool indent. */</span>
<a name="l00204"></a>00204 <span class="preprocessor">#endif</span>
<a name="l00205"></a>00205 <span class="preprocessor"></span><span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00206"></a>00206 <span class="preprocessor"></span>}
<a name="l00207"></a>00207 <span class="preprocessor">#endif</span>
<a name="l00208"></a>00208 <span class="preprocessor"></span>
<a name="l00209"></a>00209 <span class="preprocessor">#endif </span><span class="comment">/* MATRIX_H */</span>
<a name="l00210"></a>00210
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <span class="comment">/*</span>
<a name="l00213"></a>00213 <span class="comment"> * Log record. Maintained by RCS.</span>
<a name="l00214"></a>00214 <span class="comment"> *</span>
<a name="l00215"></a>00215 <span class="comment"> * $Log$</span>
<a name="l00216"></a>00216 <span class="comment"> * Revision 1.4 2004/07/21 17:46:09 egouvea</span>
<a name="l00217"></a>00217 <span class="comment"> * Changed the license terms to make it the same as sphinx2 and sphinx3.</span>
<a name="l00218"></a>00218 <span class="comment"> * </span>
<a name="l00219"></a>00219 <span class="comment"> * Revision 1.3 2001/04/05 20:02:30 awb</span>
<a name="l00220"></a>00220 <span class="comment"> * *** empty log message ***</span>
<a name="l00221"></a>00221 <span class="comment"> *</span>
<a name="l00222"></a>00222 <span class="comment"> * Revision 1.2 2000/09/29 22:35:12 awb</span>
<a name="l00223"></a>00223 <span class="comment"> * *** empty log message ***</span>
<a name="l00224"></a>00224 <span class="comment"> *</span>
<a name="l00225"></a>00225 <span class="comment"> * Revision 1.1 2000/09/24 21:38:30 awb</span>
<a name="l00226"></a>00226 <span class="comment"> * *** empty log message ***</span>
<a name="l00227"></a>00227 <span class="comment"> *</span>
<a name="l00228"></a>00228 <span class="comment"> * Revision 1.1 97/07/16 11:39:10 eht</span>
<a name="l00229"></a>00229 <span class="comment"> * Initial revision</span>
<a name="l00230"></a>00230 <span class="comment"> * </span>
<a name="l00231"></a>00231 <span class="comment"> *</span>
<a name="l00232"></a>00232 <span class="comment"> */</span>
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