Search found 2 matches

by pajacek
Sun Feb 19, 2012 4:00 pm
Forum: Math & Science
Topic: Double Sum with additional Condition
Replies: 2
Views: 14585

Re: Double Sum with additional Condition

Great, this is exactly I need! Thank you for your help and welcome.
by pajacek
Sun Feb 19, 2012 3:22 pm
Forum: Math & Science
Topic: Double Sum with additional Condition
Replies: 2
Views: 14585

Double Sum with additional Condition

Hey, I have no idea how to type something like that

Code: Select all

\displaystyle\sum^k_{i=1}\displaystyle\\sum^k_{\substack{j=1 \\ i<j}}q_i q_j
but with additional condition i<j under/between both sum symbols to get it finer.