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

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?

Answer 1

[John Chilleri]

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!

[Margaret Winding]

Thank you!