SMath Forum Questions Performing sums with several indexes 1 Pages (2 items) Performing sums with several indexes - Messages #1 Posted: 9/13/2021 12:24:35 PM Terje B 0 likes in 5 posts. Group: User Could someone point me in the correct direction regarding evaluations of such sums:Terje #2 Posted: 9/13/2021 1:01:16 PM Oscar Campo 124 likes in 298 posts. Group: Moderator WroteCould someone point me in the correct direction regarding evaluations of such sums:TerjeHi,for reproducing that formula, just type:el(η,m):sum(el(K,i)*(1+2*sum(el(H,i,j)*el(K,j),j,1,i-1)+sum(sum(el(H,j,k)*el(H,i,k)*el(K,j)*el(K,k)*(j≠i)*(k≠i),k,1,n),j,1,n)),i,1,n)to obtain:Regards,Oscar. 1 Pages (2 items) New Posts No New Posts