<html><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>mexihat</title> <style type="text/css" media="all"> @import url("scilab_code.css"); @import url("xml_code.css"); @import url("c_code.css"); @import url("style.css"); </style> </head> <body> <div class="manualnavbar"> <table width="100%"><tr> <td width="30%"> <span class="previous"><a href="medfilt1.html"><< medfilt1</a></span> </td> <td width="40%" class="center"> <span class="top"><a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a></span> </td> <td width="30%" class="next"> <span class="next"><a href="meyeraux.html">meyeraux >></a></span> </td> </tr></table> <hr /> </div> <span class="path"><a href="index.html">FOSSEE Signal Processing Toolbox</a> >> <a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a> > mexihat</span> <br /><br /> <div class="refnamediv"><h1 class="refname">mexihat</h1> <p class="refpurpose"></p></div> <div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3> <div class="synopsis"><pre><span class="default">[</span><span class="default">psi</span><span class="default">,</span><span class="default">x</span><span class="default">]=</span><span class="functionid">mexihat</span><span class="default">(</span><span class="default">lb</span><span class="default">,</span><span class="default">ub</span><span class="default">,</span><span class="default">n</span><span class="default">)</span></pre></div></div> <div class="refsection"><h3 class="title">Parameters</h3> <dl><dt><span class="term">lb:</span> <dd><p class="para">Real or complex valued vector or matrix</p></dd></dt> <dt><span class="term">ub:</span> <dd><p class="para">Real or complex valued vector or matrix</p></dd></dt> <dt><span class="term">n:</span> <dd><p class="para">Real strictly positive scalar number</p></dd></dt></dl></div> <div class="refsection"><h3 class="title">Description</h3> <p class="para">This is an Octave function This function returns values of the Mexican hat wavelet in the specified interval at all the sample points.</p></div> <div class="refsection"><h3 class="title">Examples</h3> <div class="programlisting"><table border="0" width="100%"><tr><td width="98%"><pre class="scilabcode"><span class="scilabnumber">1.</span> <span class="scilabopenclose">[</span><span class="scilabid">a</span><span class="scilabdefault">,</span><span class="scilabid">b</span><span class="scilabopenclose">]</span><span class="scilaboperator">=</span> <span class="scilabid">mexihat</span><span class="scilabopenclose">(</span><span class="scilabnumber">1</span><span class="scilabdefault">,</span><span class="scilabnumber">2</span><span class="scilabdefault">,</span><span class="scilabnumber">3</span><span class="scilabopenclose">)</span> <span class="scilabid">a</span> <span class="scilaboperator">=</span> <span class="scilabopenclose">[</span><span class="scilabnumber">0.00000</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.35197</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.35214</span><span class="scilabopenclose">]</span> <span class="scilabid">b</span> <span class="scilaboperator">=</span> <span class="scilabopenclose">[</span><span class="scilabnumber">1.0000</span> <span class="scilabnumber">1.5000</span> <span class="scilabnumber">2.0000</span><span class="scilabopenclose">]</span> <span class="scilabnumber">2.</span> <span class="scilabopenclose">[</span><span class="scilabid">a</span><span class="scilabdefault">,</span><span class="scilabid">b</span><span class="scilabopenclose">]</span><span class="scilaboperator">=</span> <span class="scilabid">mexihat</span><span class="scilabopenclose">(</span><span class="scilabopenclose">[</span><span class="scilabnumber">1</span> <span class="scilabnumber">2</span> <span class="scilabnumber">3</span><span class="scilabopenclose">]</span><span class="scilabdefault">,</span><span class="scilabnumber">1</span><span class="scilabdefault">,</span><span class="scilabnumber">1</span><span class="scilabopenclose">)</span> <span class="scilabid">a</span> <span class="scilaboperator">=</span> <span class="scilabopenclose">[</span><span class="scilabnumber">0</span><span class="scilabdefault">;</span><span class="scilabnumber">0</span><span class="scilabdefault">;</span><span class="scilabnumber">0</span><span class="scilabopenclose">]</span> <span class="scilabid">b</span> <span class="scilaboperator">=</span> <span class="scilabopenclose">[</span><span class="scilabnumber">1</span><span class="scilabdefault">;</span><span class="scilabnumber">1</span><span class="scilabdefault">;</span><span class="scilabnumber">1</span><span class="scilabopenclose">]</span></pre></td><td valign="top"><a href="scilab://scilab.execexample/"><img src="ScilabExecute.png" border="0"/></a></td><td valign="top"><a href="scilab://scilab.editexample/"><img src="ScilabEdit.png" border="0"/></a></td><td></td></tr></table></div></div> <br /> <div class="manualnavbar"> <table width="100%"> <tr><td colspan="3" class="next"><a href="http://bugzilla.scilab.org/enter_bug.cgi?product=Scilab%20software&component=Documentation%20pages" class="ulink">Report an issue</a></td></tr> <tr> <td width="30%"> <span class="previous"><a href="medfilt1.html"><< medfilt1</a></span> </td> <td width="40%" class="center"> <span class="top"><a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a></span> </td> <td width="30%" class="next"> <span class="next"><a href="meyeraux.html">meyeraux >></a></span> </td> </tr></table> <hr /> </div> </body> </html>