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
74
75
76
77
78
|
<html lang="en">
<head>
<title>Single Precision Data Types - Untitled</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="Untitled">
<meta name="generator" content="makeinfo 4.11">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Numeric-Data-Types.html#Numeric-Data-Types" title="Numeric Data Types">
<link rel="prev" href="Ranges.html#Ranges" title="Ranges">
<link rel="next" href="Integer-Data-Types.html#Integer-Data-Types" title="Integer Data Types">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
<meta http-equiv="Content-Style-Type" content="text/css">
<style type="text/css"><!--
pre.display { font-family:inherit }
pre.format { font-family:inherit }
pre.smalldisplay { font-family:inherit; font-size:smaller }
pre.smallformat { font-family:inherit; font-size:smaller }
pre.smallexample { font-size:smaller }
pre.smalllisp { font-size:smaller }
span.sc { font-variant:small-caps }
span.roman { font-family:serif; font-weight:normal; }
span.sansserif { font-family:sans-serif; font-weight:normal; }
--></style>
</head>
<body>
<div class="node">
<p>
<a name="Single-Precision-Data-Types"></a>
Next: <a rel="next" accesskey="n" href="Integer-Data-Types.html#Integer-Data-Types">Integer Data Types</a>,
Previous: <a rel="previous" accesskey="p" href="Ranges.html#Ranges">Ranges</a>,
Up: <a rel="up" accesskey="u" href="Numeric-Data-Types.html#Numeric-Data-Types">Numeric Data Types</a>
<hr>
</div>
<h3 class="section">4.3 Single Precision Data Types</h3>
<p>Octave includes support for single precision data types, and most of the
functions in Octave accept single precision values and return single
precision answers. A single precision variable is created with the
<code>single</code> function.
<!-- ov-flt-re-mat.cc -->
<p><a name="doc_002dsingle"></a>
<div class="defun">
— Built-in Function: <b>single</b> (<var>x</var>)<var><a name="index-single-234"></a></var><br>
<blockquote><p>Convert <var>x</var> to single precision type.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002ddouble.html#doc_002ddouble">double</a>.
</p></blockquote></div>
<p>for example
<pre class="example"> sngl = single (rand (2, 2))
sngl =
0.37569 0.92982
0.11962 0.50876
class (sngl)
single
</pre>
<p>Many functions can also return single precision values directly. For
example
<pre class="example"> ones (2, 2, "single")
zeros (2, 2, "single")
eye (2, 2, "single")
rand (2, 2, "single")
NaN (2, 2, "single")
NA (2, 2, "single")
Inf (2, 2, "single")
</pre>
<p class="noindent">will all return single precision matrices.
</body></html>
|
