File r37/lisp/csl/html/r37_0600.html artifact 48a9b31642 part of check-in 3af273af29

<A NAME=matrixp>

<TITLE>matrixp</TITLE></A>
<b><a href=r37_idx.html>INDEX</a></b><p><p>



<B>MATRIXP</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
<P>
 
<P>
<P>
 <P> <H3> 
syntax: </H3>
<em>matrixp</em>(&lt;test\_input&gt;) 
<P>
<P>
<P>
&lt;test\_input&gt; :- anything you like. 
<P>
<P>
<em>matrixp</em>is a boolean function that returns t if the input is a 
matrix and nil otherwise. 
<P>
<P>
 <P> <H3> 
examples: </H3>
<P><PRE><TT>

matrixp A; 

  t 


matrixp(doodlesackbanana);

  nil 

</TT></PRE><P>Related functions: 
<A HREF=r37_0613.html>squarep</A>, 
<A HREF=r37_0620.html>symmetricp</A>. 
<P>
<P>