<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html > <head><title>Math</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="generator" content="TeX4ht (http://www.cse.ohio-state.edu/~gurari/TeX4ht/)"> <meta name="originator" content="TeX4ht (http://www.cse.ohio-state.edu/~gurari/TeX4ht/)"> <!-- 3,html --> <meta name="src" content="nipguide.tex"> <meta name="date" content="2010-06-30 13:34:00"> <link rel="stylesheet" type="text/css" href="nipguide.css"> </head><body > <!--l. 410--><div class="crosslinks"><p class="noindent">[<a href="nipguidese19.html" >next</a>] [<a href="nipguidese17.html" >prev</a>] [<a href="nipguidese17.html#tailnipguidese17.html" >prev-tail</a>] [<a href="#tailnipguidese18.html">tail</a>] [<a href="nipguidech5.html#nipguidese18.html" >up</a>] </p></div> <h3 class="sectionHead"><span class="titlemark">5.5 </span> <a id="x27-490005.5"></a>Math</h3> <!--l. 411--><p class="noindent" ><a name="nip_label_sec:menu-math"></a> <!--l. 413--><p class="indent" > Basic maths operations on any combination of any objects. You can add a slider to a matrix, for example, then divide by an image. Hopefully most of these are obvious. <dl class="description"><dt class="description"> <span class="pcrb7t-">Arithmetic </span><span class="ptmb7t-">/ </span><span class="pcrb7t-">Absolute Value Vector</span> </dt><dd class="description"> The absolute value item normally calculates mod of each band of an image separately. By contrast, <span class="pcrr7t-">Absolute Value Vector </span>treats each pixel as a vector and calculates the modulus of that. </dd><dt class="description"> <span class="pcrb7t-">List</span> </dt><dd class="description">These aren’t really maths operations, but they’re in here too. </dd></dl> <!--l. 429--><div class="crosslinks"><p class="noindent">[<a href="nipguidese19.html" >next</a>] [<a href="nipguidese17.html" >prev</a>] [<a href="nipguidese17.html#tailnipguidese17.html" >prev-tail</a>] [<a href="nipguidese18.html" >front</a>] [<a href="nipguidech5.html#nipguidese18.html" >up</a>] </p></div> <!--l. 429--><p class="indent" > <a id="tailnipguidese18.html"></a> </body></html>