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Product over an arbitrary index.

• To: mathgroup at smc.vnet.net
• Subject: [mg68683] Product over an arbitrary index.
• From: quantieny at gmail.com
• Date: Wed, 16 Aug 2006 03:36:14 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

I have a function f(x,y)   that I would like to compute the product
over indices i,j
where i goes from an arbitrary list {1,4,3}  and j goes 1 to m.

Is this possible in mathematica the function Product itself seems to
only work over a continous sequence and it is not clear how I can use
two set of indices.

Additionally can I specify the product over an intersection or
complement of a list?.

Thanks,
K Frou

• Follow-Ups:
  • Re: Product over an arbitrary index.
    • From: Sseziwa Mukasa <mukasa@jeol.com>