Nyall Dawson bd9e02be95 Add alias support for expression functions
Standardise naming of all internal functions to lowercase with
underscore convention. Add aliases for old names to avoid
breakage.
2015-05-03 20:57:36 +10:00

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<h3>to_real() function</h3>
Converts a string to real number. Nothing changed if a value cannot be converted to real (e.g '123.56asd' is invalid). Numbers are rounded after saving changes if the precision is smaller than the result of the conversion.
<p><h4>Syntax</h4>
to_real(<i>string</i>)</p>
<p><h4>Arguments</h4>
<!-- List args for functions here-->
<i> string</i> &rarr; is string. The String to convert to real number.</p>
<p><h4>Example</h4>
<!-- Show example of function.-->
to_real('123.45') &rarr; 123.45</p>