Sum

*To*: MathGroup at yoda.physics.unc.edu*Subject*: Sum*From*: wknowlton at smtp-gw.census.gov (Knowlton, William B)*Date*: Thu, 10 Feb 94 14:59:07 EST

Can I define a summation with limits that are defined by a list? I need to use the function repeatedly for different list values. I.E. f = Sum[Sum[(a-j p)^-1,{j,0,n[[i]]}],{i,1,L}] And then define L=3, n = {2,7,4}, say, to give the function well defined limits. It doesn't seem to work. wknowlton at ccmail.census.gov,