summaryrefslogtreecommitdiff
path: root/help/en_US/scilab_en_US_help/ifft1.html
diff options
context:
space:
mode:
Diffstat (limited to 'help/en_US/scilab_en_US_help/ifft1.html')
-rw-r--r--help/en_US/scilab_en_US_help/ifft1.html94
1 files changed, 0 insertions, 94 deletions
diff --git a/help/en_US/scilab_en_US_help/ifft1.html b/help/en_US/scilab_en_US_help/ifft1.html
deleted file mode 100644
index 5cffe2a..0000000
--- a/help/en_US/scilab_en_US_help/ifft1.html
+++ /dev/null
@@ -1,94 +0,0 @@
-<html><head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
- <title>ifft1</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="ifft.html">&lt;&lt; ifft</a></span>
-
- </td>
- <td width="40%" class="center">
- <span class="top"><a href="section_e54aa8aac34aa55341e8b4b782fe1a74.html">FOSSEE Signal Processing Toolbox</a></span>
-
- </td>
- <td width="30%" class="next">
- <span class="next"><a href="ifft2.html">ifft2 &gt;&gt;</a></span>
-
- </td>
- </tr></table>
- <hr />
- </div>
-
-
-
- <span class="path"><a href="index.html">FOSSEE Signal Processing Toolbox</a> &gt;&gt; <a href="section_e54aa8aac34aa55341e8b4b782fe1a74.html">FOSSEE Signal Processing Toolbox</a> &gt; ifft1</span>
-
- <br /><br />
- <div class="refnamediv"><h1 class="refname">ifft1</h1>
- <p class="refpurpose">Calculates the inverse discrete Fourier transform of a matrix using Fast Fourier Transform algorithm.</p></div>
-
-
-<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3>
- <div class="synopsis"><pre><span class="default">ifft</span><span class="default"> (</span><span class="default">x</span><span class="default">, </span><span class="default">n</span><span class="default">, </span><span class="default">dim</span><span class="default">)</span>
-<span class="default">ifft</span><span class="default"> (</span><span class="default">x</span><span class="default">, </span><span class="default">n</span><span class="default">)</span>
-<span class="default">ifft</span><span class="default"> (</span><span class="default">x</span><span class="default">)</span></pre></div></div>
-
-<div class="refsection"><h3 class="title">Parameters</h3>
- <dl><dt><span class="term">x:</span>
- <dd><p class="para">input matrix</p></dd></dt>
- <dt><span class="term">n:</span>
- <dd><p class="para">Specifies the number of elements of x to be used</p></dd></dt>
- <dt><span class="term">dim:</span>
- <dd><p class="para">Specifies the dimention of the matrix along which the inverse FFT is performed</p></dd></dt></dl></div>
-
-<div class="refsection"><h3 class="title">Description</h3>
- <p class="para">This is an Octave function.</p></div>
-
-<div class="refsection"><h3 class="title">Description</h3>
- <p class="para">This is an Octave function.
-The inverse FFT is calculated along the first non-singleton dimension of the array. Thus, inverse FFT is computed for each column of x.</p>
- <p class="para">n is an integer specifying the number of elements of x to use. If n is larger than dimention along. which the inverse FFT is calculated, then x is resized and padded with zeros.
-Similarly, if n is smaller, then x is truncated.</p>
- <p class="para">dim is an integer specifying the dimension of the matrix along which the inverse FFT is performed.</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="scilabid">x</span> <span class="scilaboperator">=</span> <span class="scilabopenclose">[</span><span class="scilabnumber">1</span> <span class="scilabnumber">2</span> <span class="scilabnumber">3</span><span class="scilabdefault">;</span> <span class="scilabnumber">4</span> <span class="scilabnumber">5</span> <span class="scilabnumber">6</span><span class="scilabdefault">;</span> <span class="scilabnumber">7</span> <span class="scilabnumber">8</span> <span class="scilabnumber">9</span><span class="scilabopenclose">]</span>
-<span class="scilabid">n</span> <span class="scilaboperator">=</span> <span class="scilabnumber">3</span>
-<span class="scilabid">dim</span> <span class="scilaboperator">=</span> <span class="scilabnumber">2</span>
-<span class="scilabid">ifft1</span> <span class="scilabopenclose">(</span><span class="scilabid">x</span><span class="scilabdefault">,</span> <span class="scilabid">n</span><span class="scilabdefault">,</span> <span class="scilabid">dim</span><span class="scilabopenclose">)</span>
-<span class="scilabid">ans</span> <span class="scilaboperator">=</span>
-
-<span class="scilabnumber">2.00000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.00000</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.50000</span> <span class="scilaboperator">-</span> <span class="scilabnumber">0.28868</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.50000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.28868</span><span class="scilabid">i</span>
-<span class="scilabnumber">5.00000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.00000</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.50000</span> <span class="scilaboperator">-</span> <span class="scilabnumber">0.28868</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.50000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.28868</span><span class="scilabid">i</span>
-<span class="scilabnumber">8.00000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.00000</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.50000</span> <span class="scilaboperator">-</span> <span class="scilabnumber">0.28868</span><span class="scilabid">i</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.50000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.28868</span><span class="scilabid">i</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="ifft.html">&lt;&lt; ifft</a></span>
-
- </td>
- <td width="40%" class="center">
- <span class="top"><a href="section_e54aa8aac34aa55341e8b4b782fe1a74.html">FOSSEE Signal Processing Toolbox</a></span>
-
- </td>
- <td width="30%" class="next">
- <span class="next"><a href="ifft2.html">ifft2 &gt;&gt;</a></span>
-
- </td>
- </tr></table>
- <hr />
- </div>
- </body>
-</html>