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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Chapter 8. Matrices en GEL</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="index.html" title="Manual de Genius"><link rel="up" href="index.html" title="Manual de Genius"><link rel="prev" href="ch07s06.html" title="Cargar programas"><link rel="next" href="ch08s02.html" title="Conjugada de la traspuesta y operador de trasposición"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 8. Matrices en GEL</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch07s06.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="ch08s02.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="genius-gel-matrices"></a>Chapter 8. Matrices en GEL</h1></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="sect1"><a href="ch08.html#genius-gel-matrix-support">Introducir matrices</a></span></dt><dt><span class="sect1"><a href="ch08s02.html">Conjugada de la traspuesta y operador de trasposición</a></span></dt><dt><span class="sect1"><a href="ch08s03.html">Álgebra lineal</a></span></dt></dl></div><p>Genius tiene soporte para vectores y matrices y una biblioteca dimensionable para manipulación de matrices y funciones de álgebra lineal.</p><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="genius-gel-matrix-support"></a>Introducir matrices</h2></div></div></div><p lang="en">
To enter matrices, you can use one of the following two syntaxes. You can either enter
the matrix on one line, separating values by commas and rows by semicolons. Or you
can enter each row on one line, separating
values by commas.
You can also just combine the two methods.
So to enter a 3x3 matrix
of numbers 1-9 you could do
</p><pre lang="en" class="programlisting">[1,2,3;4,5,6;7,8,9]
</pre><p lang="en">
or
</p><pre lang="en" class="programlisting">[1, 2, 3
4, 5, 6
7, 8, 9]
</pre><p lang="en">
Do not use both ';' and return at once on the same line though.
</p><p lang="en">
You can also use the matrix expansion functionality to enter matrices.
For example you can do:
</p><pre lang="en" class="programlisting">a = [ 1, 2, 3
4, 5, 6
7, 8, 9]
b = [ a, 10
11, 12]
</pre><p lang="en">
and you should get
</p><pre lang="en" class="programlisting">[1, 2, 3, 10
4, 5, 6, 10
7, 8, 9, 10
11, 11, 11, 12]
</pre><p lang="en">
similarly you can build matrices out of vectors and other stuff like that.
</p><p lang="en">
Another thing is that non-specified spots are initialized to 0, so
</p><pre lang="en" class="programlisting">[1, 2, 3
4, 5
6]
</pre><p lang="en">
will end up being
</p><pre lang="en" class="programlisting">
[1, 2, 3
4, 5, 0
6, 0, 0]
</pre><p lang="en">
</p><p>Cuando las matrices se evalúan y se recorre fila por fila, justo como el operador <code class="literal">M@(j)</code> que recorre la matriz renglón por renglón.</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p>Tenga cuidado al utilizar «return» en expresiones dentro de corchetes <code class="literal">[ ]</code>, ya que tiene un significado ligeramente distinto en ese contexto. Comenzará una fila nueva.</p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch07s06.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="ch08s02.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Cargar programas </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Conjugada de la traspuesta y operador de trasposición</td></tr></table></div></body></html>
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