simplification rule for infinite sum
- To: mathgroup at smc.vnet.net
- Subject: [mg105799] simplification rule for infinite sum
- From: Ruth Lazkoz Sáez <ruth.lazkoz at ehu.es>
- Date: Sat, 19 Dec 2009 06:27:23 -0500 (EST)
- References: <200912181123.GAA16525@smc.vnet.net>
Hi,
I have managed to define rules with patterns to shift indexes on the
coefficients of infinite sums, but I have failed to
do something so apparently simple as making Mathematica understand that this
a Sum[(n + 2) c[n] x^n, {n, 5, Infinity}] +
b Sum[(n + 2) (n + 1) c[n] x^n, {n, 5, Infinity}]
should be simplified to this
Sum[(n + 2) (a + b (n + 1)) c[n] x^n, {n, 5, Infinity}]
Can someone help me? Thanks a lot,
Ruth Lazkoz
- References:
- Find maxima in lists of data
- From: David <david.leipold@tu-ilmenau.de>
- Find maxima in lists of data