
<A NAME=vandermonde>

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



<B>VANDERMONDE</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
<P>
 
<P>
<P>
 <P> <H3> 
syntax: </H3>
<em>vandermonde</em>({&lt;expr\_list&gt;}) 
<P>
<P>
<P>
(If you are feeling lazy then the braces can be omitted.) 
<P>
<P>
&lt;expr\_list&gt; :- list of algebraic expressions. 
<P>
<P>
<em>vandermonde</em>creates the vandermonde matrix from the 
&lt;expr\_list&gt;. 
<P>
<P>
This is the square matrix in which the (i,j)'th entry is 
&lt;expr\_list&gt;(i)^(j-1). 
<P>
<P>
It has dimension n where n is the number of expressions. 
<P>
<P>
 <P> <H3> 
examples: </H3>
<P><PRE><TT>             
vandermonde({x,2*y,3*z}); 


  [          2 ]
  [1   x    x  ]
  [            ]
  [           2]
  [1  2*y  4*y ]
  [            ]
  [           2]
  [1  3*z  9*z ]

</TT></PRE><P>