How do I write this sum of series?

I want to write this sum of series 

So i give h as a imput and the first value x(1)

Can anyone help please

Answer 1

[Marco Manfredi]

Hello,

you can check these links:

• https://it.mathworks.com/help/symbolic/symsum.html
• https://it.mathworks.com/matlabcentral/answers/197148-how-to-use-sum-series-in-matlab

BR

Marco

[Bleron Kroni]

Thank you for the answer.

I'm trying to write something like this

where X(1) ist the input so i want to strat from k=2

so X(2) = (X(1)*H(2))/H(1)

and x(3) = (X(1)*H(3)-X(2)*H(2))/H(1)

for k = 2:n

X(k) =sum([X(1:k-1)]*[H(k:-1:2)].') /H(1);

end