Services & Resources / Wolfram Forums / MathGroup Archive

MathGroup Archive 2013

[Date Index] [Thread Index] [Author Index]

Search the Archive

Summation in Mathematica

  • To: mathgroup at
  • Subject: [mg130590] Summation in Mathematica
  • From: Ben Blomberg <bblomberg at>
  • Date: Wed, 24 Apr 2013 07:03:54 -0400 (EDT)
  • Delivered-to:
  • Delivered-to:
  • Delivered-to:
  • Delivered-to:

Hello All,

I am trying to understand a piece of code I found but I am stuck on this
summation. This is part of a larger do loop over n.

    UnderoverscriptBox[\(\[Sum]\), \(m = \(-10\)\),
\(10\)]\(\(eigenfunctionsort[n, j]\)[\([m + 11]\)]

What I mainly do not understand is  what is happening with the [m+11]. Is
that being multiplied with eigen function sort with each step in the sum,
or is that simply adding 11 to m at each step in the sum?

Thanks Ben

  • Prev by Date: memory issue
  • Next by Date: Re: Sparse Array Question
  • Previous by thread: Re: memory issue
  • Next by thread: Re: Summation in Mathematica