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maximum of a series

• To: mathgroup at smc.vnet.net
• Subject: [mg113951] maximum of a series
• From: olfa <olfa.mraihi at yahoo.fr>
• Date: Fri, 19 Nov 2010 05:08:33 -0500 (EST)

Hi Mathematica Community,

how can I represent for example
the maximum of the summations :sum[a[k],{k,i,j}] where j varies from i
to n?

Thank you