<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" type="guide" id="variable" xml:lang="ro">
<info>
<link type="guide" xref="index#equation"/>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Nichita Uțiu</mal:name>
<mal:email>nikita.utiu@gmail.com</mal:email>
<mal:years>2010</mal:years>
</mal:credit>
</info>
<title>Variabile</title>
<p>
To assign a value to a variable use the = symbol or choose the variable to assign to with the <gui>x</gui> button in <link xref="mouse">advanced mode</link>.
A variable name must only contain upper or lower case characters.
</p>
<example>
<p>x=5</p>
<p>valoare=82</p>
</example>
<p>
Variables can be used in any equation and are substituted for their assigned value.
Variables can be inserted using the <gui>x</gui> button.
</p>
<example>
<p>6x+3</p>
<p>xy-3x+7y-21</p>
</example>
<p>Următoarele variabile sunt întotdeauna definite.</p>
<table>
<tr>
<td><p>_</p></td>
<td><p>Rezultatul calculului anterior.</p></td>
</tr>
<tr>
<td><p>e</p></td>
<td><p><link xref="logarithm">Numărul lui Euler</link></p></td>
</tr>
<tr>
<td><p>π</p></td>
<td><p><link xref="trigonometry">Pi</link></p></td>
</tr>
<tr>
<td><p>rand</p></td>
<td><p>O valoare aleatoarea în intervalul [0,1] (se modifică la fiecare citire)</p></td>
</tr>
</table>
</page>