How do I create an equation for symsum that involves multiplaction, fractions, etc?

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Margaret Winding
Margaret Winding 2017-1-12
评论： Margaret Winding 2017-1-12
I am trying to find the sum of the following series:
1/((2k+1)^2 x (2k+3)^2) for 500 terms starting with zero
I have the following
syms k f= 1/((2k+1)^2.*(2k+3)^2) S_symsum= symsum(f, k, 0, 499)
Matlab keeps saying that I'm typing in the function f wrong. How do I fix this?

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John Chilleri
John Chilleri 2017-1-12
Hello,
You need a multiplication sign between 2 and k:
syms k
f= 1/((2*k+1)^2.*(2*k+3)^2)
S_symsum= symsum(f, k, 0, 499)
Hope this helps!

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