Re: series with coefficients given in the direct order, with binomials of odd order only

Galina <Galina.Pilgun@xxxxxxxxx> writes:

Hi all,
does anybody know how to create a polynomial series in the following
form: a[1]*x+a[2]*y+a[3]*x^3+a[4]*x^2*y
+a[5]*x*y^2+a[6]*y^3+a[7]*x^5+... I need a series with coefficients
given in the direct order, and odd order of binomials only...

You mean like this (in Maple)?

sort(add(add(a[n^2+n+i+1]*x^(2*n+1-i)*y^i,i=0..2*n+1),n=0..N),
[seq(a[i],i=1..(N+1)*(N+2))]);
--
Robert Israel israel@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Department of Mathematics http://www.math.ubc.ca/~israel
University of British Columbia Vancouver, BC, Canada
.

Relevant Pages