File r37/lisp/csl/html/r37_0107.html artifact 41a995d752 part of check-in dc9552dc80

<A NAME=TIMES>

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



<B>TIMES</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
<P>
 
The <em>times</em> operator is an infix or prefix n-ary multiplication 
operator. It is identical to <em>*</em>. 
 <P> <H3> 
syntax: </H3>
<P>
<P>
&lt;expression&gt; <em>times</em> &lt;expression&gt; {<em>times</em> &lt;express
ion&gt;}* 
<P>
<P>
or <em>times</em>(&lt;expression&gt;,&lt;expression&gt; {,&lt;expression&gt;}*) 

<P>
<P>
<P>
&lt;expression&gt; can be any valid REDUCE scalar or matrix expression. 
Matrix expressions must be of the correct dimensions. Compatible scalar 
and matrix expressions can be mixed. 
<P>
<P>
 <P> <H3> 
examples: </H3>
<P><PRE><TT>
var1 times var2; 

  VAR1*VAR2 


times(6,5); 

  30 


matrix aa,bb; 

aa := mat((1),(2),(x))$ 

bb := mat((0,3,1))$ 

aa times bb times 5; 

  [0   15    5 ]
  [            ]
  [0   30   10 ]
  [            ]
  [0  15*X  5*X]

</TT></PRE><P>