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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Chapter 4. Darstellung</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="index.html" title="Genius-Handbuch"><link rel="up" href="index.html" title="Genius-Handbuch"><link rel="prev" href="ch03s03.html" title="Öffnen und Ausführen eines Programms"><link rel="next" href="ch04s02.html" title="Parametrische Darstellungen"></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 4. Darstellung</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch03s03.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="ch04s02.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="genius-gel-plotting"></a>Chapter 4. Darstellung</h1></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="sect1"><a href="ch04.html#genius-line-plots">Kurvendarstellungen</a></span></dt><dt><span class="sect1"><a href="ch04s02.html">Parametrische Darstellungen</a></span></dt><dt><span class="sect1"><a href="ch04s03.html">Richtungsfeld-Darstellungen</a></span></dt><dt><span class="sect1"><a href="ch04s04.html">Vektorfeld-Darstellungen</a></span></dt><dt><span class="sect1"><a href="ch04s05.html">2D-Darstellungen</a></span></dt></dl></div><p>Die Darstellung von Funktionen steht nur in der graphischen GNOME-Version zur Verfügung. Alle Darstellungen mittels graphischer Schnittstelle können über das Fenster <span class="guilabel">Darstellung erstellen</span> erreicht werden. In dieses Fenster gelangen Sie entweder durch Klick auf den Knopf <span class="guilabel">Darstellen</span> in der Werkzeugleiste oder durch Auswahl von <span class="guilabel">Darstellen …</span> im Menü <span class="guilabel">Rechner</span>. Sie können die Darstellungsmöglichkeiten auch unter Verwendung der GEL-<a class="link" href="ch11s20.html" title="Darstellung">Darstellungsfunktionen</a> einsetzen. Sehen Sie auch unter <a class="xref" href="ch05.html" title="Chapter 5. GEL-Grundlagen">Chapter 5, <i>GEL-Grundlagen</i></a> nach, um herauszufinden, wie Sie Ausdrücke eingeben können, die von Genius verstanden werden.</p><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="genius-line-plots"></a>Kurvendarstellungen</h2></div></div></div><p lang="en">
	To graph real-valued functions of one variable, open the <span class="guilabel">Create Plot</span>
	window.  You can also use the
        <a class="link" href="ch11s20.html#gel-function-LinePlot"><code class="function">LinePlot</code></a> function
	on the command line (see its documentation).  And by the words line plot, we mean plots in the plane,
	as opposed to surface plots, which are in three dimensions.
      </p><p>Sobald Sie auf den <span class="guilabel">Darstellen</span>-Knopf im Hauptfenster klicken, öffnet sich ein Fenster mit einigen Reitern darin. Sie befinden sich nun im Reiter <span class="guilabel">Funktionsgraphen darstellen</span> und darin im Reiter <span class="guilabel">Funktionen / Ausdrücke</span>. Siehe auch <a class="xref" href="ch04.html#lineplot-fig" title="Figure 4.1. Fenster »Darstellung erstellen«">Figure 4.1, “Fenster »Darstellung erstellen«”</a>.</p><div class="figure"><a name="lineplot-fig"></a><p class="title"><b>Figure 4.1. Fenster »Darstellung erstellen«</b></p><div class="figure-contents"><div class="screenshot"><div lang="en" class="mediaobject"><img src="figures/line_plot.png" alt="Shows the line plotting window."></div></div></div></div><br class="figure-break"><p lang="en">
	Type expressions with <strong class="userinput"><code>x</code></strong> as
	the independent variable into the textboxes.  Alternatively you can give names of functions such as
	<strong class="userinput"><code>cos</code></strong> rather then having to type <strong class="userinput"><code>cos(x)</code></strong>.
	You can graph up to ten functions.  If you make a mistake and Genius cannot
	parse the input it will signify this with a warning icon on the right of the text
	input box where the error occurred, as well as giving you an error dialog.
	You can change the ranges of the dependent and independent variables in the bottom
	part of the dialog.  In the boxes for the ranges, simple expressions are allowed,
	such as <strong class="userinput"><code>2*pi</code></strong> or <strong class="userinput"><code>10^3</code></strong>.
	The <code class="varname">y</code> (dependent) range can be set automatically by turning on the <span class="guilabel">Fit dependent axis</span>
	checkbox.
	The names of the variables can also be changed.
	Pressing the <span class="guilabel">Plot</span> button produces the graph shown in <a class="xref" href="ch04.html#lineplot2-fig" title="Figure 4.2. Fenster »Darstellen«">Figure 4.2, “Fenster »Darstellen«”</a>.
      </p><p lang="en">
	      The variables can be renamed by clicking the <span class="guilabel">Change variable names...</span> button, which is useful if you wish to print or save the figure and don't want to use the standard
	      names.  Finally you can also avoid printing the legend and the axis labels completely,
	      which is also useful if printing or
	      saving, when the legend might simply be clutter.
      </p><div class="figure"><a name="lineplot2-fig"></a><p class="title"><b>Figure 4.2. Fenster »Darstellen«</b></p><div class="figure-contents"><div class="screenshot"><div lang="en" class="mediaobject"><img src="figures/line_plot_graph.png" alt="The graph produced."></div></div></div></div><br class="figure-break"><p>Von hier aus können Sie die Darstellung ausdrucken, PostScript-, EPS- oder PNG-Versionen davon erstellen und die Vergrößerungsstufe verändern.</p><p>Um Darstellungen von der Befehlszeile aus zu erstellen, lesen Sie bitte die Dokumentation der <a class="link" href="ch11s20.html#gel-function-LinePlot"><code class="function">LinePlot</code></a>-Funktion.</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch03s03.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="ch04s02.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Öffnen und Ausführen eines Programms </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Parametrische Darstellungen</td></tr></table></div></body></html>