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<h3><a name="staticMethods">10.5 Functions</a></h3>
<p>Many functions are available for use within your expressions,
covering standard mathematical and trigonometric functions,
arithmetic utility functions, type conversions, and some more
specialised astronomical ones.
You can use them in just the way you'd expect,
by using the function name
(unlike column names, this is case-sensitive) followed by
comma-separated arguments in brackets, so
<pre>
max(IMAG,JMAG)
</pre>
will give you the larger of the values in the columns IMAG and JMAG,
and so on.
</p>
<p>The functions available for use by default
are listed by class in the following subsections
with their arguments and short descriptions.
The <a href="funcs.html"><code>funcs</code></a> command provides another
way to browse these function descriptions online.
</p>
<ul>
<li><a href="uk.ac.starlink.ttools.func.Strings.html">10.5.1 Strings</a></li>
<li><a href="uk.ac.starlink.ttools.func.Tilings.html">10.5.2 Tilings</a></li>
<li><a href="uk.ac.starlink.ttools.func.Fluxes.html">10.5.3 Fluxes</a></li>
<li><a href="uk.ac.starlink.ttools.func.Distances.html">10.5.4 Distances</a></li>
<li><a href="uk.ac.starlink.ttools.func.Times.html">10.5.5 Times</a></li>
<li><a href="uk.ac.starlink.ttools.func.Arrays.html">10.5.6 Arrays</a></li>
<li><a href="uk.ac.starlink.ttools.func.Arithmetic.html">10.5.7 Arithmetic</a></li>
<li><a href="uk.ac.starlink.ttools.func.TrigDegrees.html">10.5.8 TrigDegrees</a></li>
<li><a href="uk.ac.starlink.ttools.func.KCorrections.html">10.5.9 KCorrections</a></li>
<li><a href="uk.ac.starlink.ttools.func.Lists.html">10.5.10 Lists</a></li>
<li><a href="uk.ac.starlink.ttools.func.Coverage.html">10.5.11 Coverage</a></li>
<li><a href="uk.ac.starlink.ttools.func.CoordsRadians.html">10.5.12 CoordsRadians</a></li>
<li><a href="uk.ac.starlink.ttools.func.Conversions.html">10.5.13 Conversions</a></li>
<li><a href="uk.ac.starlink.ttools.func.CoordsDegrees.html">10.5.14 CoordsDegrees</a></li>
<li><a href="uk.ac.starlink.ttools.func.Maths.html">10.5.15 Maths</a></li>
<li><a href="uk.ac.starlink.ttools.func.Formats.html">10.5.16 Formats</a></li>
</ul>
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<hr><i>STILTS - Starlink Tables Infrastructure Library Tool Set<br>Starlink User Note256<br>STILTS web page:
<a href="http://www.starlink.ac.uk/stilts/">http://www.starlink.ac.uk/stilts/</a><br>Author email:
<a href="mailto:m.b.taylor@bristol.ac.uk">m.b.taylor@bristol.ac.uk</a><br>Mailing list:
<a href="mailto:topcat-user@jiscmail.ac.uk">topcat-user@jiscmail.ac.uk</a><br></i></body>
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