<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 4.13"> <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"> <a name="Single-Precision-Data-Types"></a> <p> 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>