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<h1 class='title'>How do I search for a function?</h1>
<p>Use the PerlDL shell on your computer. For example, use the <tt>help</tt>
command to learn about xvals:</p>
<pre>
pdl> help xvals
</pre>
<p>If you don't know the exact name of the function, use the <tt>apropos</tt>
command to do a fuzzy seach:</p>
<pre>
pdl> apropos xval
mn_init The function mn_init() does the basic initialization of the
fit. The first argument has to be a reference to the function
to be minimized.
xlinvals X axis values between endpoints (see xvals).
xlogvals X axis values logarithmicly spaced between endpoints (see xvals).
xvals Fills a piddle with X index values. Uses similar specifications
to zeroes and new_from_specification.
yvals Fills a piddle with Y index values. See the CAVEAT for xvals.
zvals Fills a piddle with Z index values. See the CAVEAT for xvals.
</pre>
<p>The <tt>apropos</tt> command does a regex search for function names and
descriptions.</p>