function sum1=sumfunc(v,numgains,A1,A2,alpha,totalcoverage)

% Copyright 2005 William S. Krasker

sum1=sum( max( (A1(1:numgains)-v*ones(1,numgains))./(alpha(1:numgains)*v-A2(1:numgains)) , ...
                                    zeros(1,numgains)) ) - totalcoverage;