Re: Multiple Sums in Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg53713] Re: Multiple Sums in Mathematica*From*: Bill Rowe <readnewsciv at earthlink.net>*Date*: Mon, 24 Jan 2005 03:37:39 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

On 1/23/05 at 2:02 AM, sbrandt at physics.wustl.edu (Sebastian Brandt) wrote: >I want to perform a nested sum, where the number of summations is >not specified. I.e., I am looking for a way to implement the sum >sum[ f, {i1, 1, M}, {i2, 1, M}, ..., {in, 1, M} ] >Does anbody know how to do this for arbitrary n? Put the iterators in a list and use Sequence. For example, list = {{n, 1, 4}, {m, 2, 5}}; Sum[n + m, Evaluate[Sequence@@list]] -- To reply via email subtract one hundred and four