1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
<?xml version="1.0" encoding="UTF-8"?>
<refentry version="5.0-subset Scilab" xml:id="log2" xml:lang="fr"
xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:ns5="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
xmlns:db="http://docbook.org/ns/docbook">
<info>
<pubdate>$LastChangedDate$</pubdate>
</info>
<refnamediv>
<refname>log2</refname>
<refpurpose>logarithme en base 2</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Séquence d'appel</title>
<synopsis>y=log2(x)</synopsis>
</refsynopsisdiv>
<refsection>
<title>Paramètres</title>
<variablelist>
<varlistentry>
<term>x</term>
<listitem>
<para>vecteur ou matrice (réelle ou complexe)</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para><literal>log2(x)</literal> calcule le logarithme en base 2 élément
par élément : <literal>y(i,j)=log2(x(i,j))</literal>.</para>
</refsection>
<refsection>
<title>Exemples</title>
<programlisting role="example"><![CDATA[
2.^(log2([1,%i,-1,-%i]))
]]></programlisting>
</refsection>
<refsection>
<title>Voir Aussi</title>
<simplelist type="inline">
<member><link linkend="log">log</link></member>
<member><link linkend="log10">log10</link></member>
<member><link linkend="hat">hat</link></member>
<member><link linkend="exp">exp</link></member>
<member><link linkend="frexp">frexp</link></member>
<member><link linkend="logm">logm</link></member>
<member><link linkend="ieee">ieee</link></member>
</simplelist>
</refsection>
</refentry>
|
