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

Why this can't be reduced by mathematica?!

• To: mathgroup at smc.vnet.net
• Subject: [mg114115] Why this can't be reduced by mathematica?!
• From: olfa <olfa.mraihi at yahoo.fr>
• Date: Wed, 24 Nov 2010 06:58:16 -0500 (EST)

Hi Mathematica Community,

Reduce[s==Sum[a[index], {index, i + 1, N}] - Sum[a[index], {index, j +
1, N}] &&
j >= i,{s}]

the output should be s==Sum[a[index], {index, i+1, j }]

but it is not!
Thank you.