>Examples</h2>
<pre>
planck 10000. 20000. .1 12000.
plot
</pre>
will plot the Planck function at a temperature of 12000 K between 10000 
and 20000 wavenumbers.

<h3>Related commands</h3>
<ul>
<li> <a href="photonscm-1.html"> photons/cm-1 </a>
<li> <a href="response.html"> response</a>
<LI> <A HREF="voigt.html">voigt</A>
<LI> <A HREF="planck.html">planck</A>
<LI> <A HREF="noise.html">noise</A>
<LI> <A HREF="exp.html">exp</A>
<LI> <A HREF="log.html">log</A>
<LI> <A HREF="sinc.html">sinc</A>
<LI> <A HREF="sinc