generate y(n)=y(n-1)+x(n)

hello i want to generate y(n)=y(n-1)+x(n). by using a for loop I can find the last value of y, but i need to store all values of y from n =1 till n. Who do I do that?

Answer 1

[Azzi Abdelmalek]

n=10
y0=0; % Initial conditions  
y(1)=y0+x(1); 
for k=2:n
    y(k)=y(k-1)+x(k)
end

[Marwan Malaeb]

that is right, thanks Azzi.

Answer 2

[Roger Stafford]

That is precisely what the matlab ‘cumsum’ function does:

y = cumsum(x);