| Subject: | sum notation , |
|---|---|
| From: | "vsgdp" |
| Date: | Sat, 30 Sep 2006 10:07:50 -0700 |
| Newsgroups: | sci.math |
Hi, what does the following notation mean: Sum( a_k*b_j, for 1 <= k < j <= n )? Is it a double sum: Sum( Sum( a_k*b_j, from k = 1 to j-1, from j = 1 to n ) ? |
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