How can I sum anonymous functions?

Dear all, I have a for-loop and every for-loop creates an instance of an anonymous function. In the end I would like to sum all these anonymous functions to one function, which I can then use to evaluate for different t. So far I have the following, which compiles, but gives me an error when trying Hn(0.5). Thanks for your help :)

A= rand(60,200);
X = randn(200,1);
eta = sqrt(0.03)*randn(60,1);  
[u, s, v] = svd(A);
[m,~] = size(A);
xi = zeros(m,1);
nu = zeros(m,1);
alpha = zeros(m,1);
Hn = 0;
for i = 1:m
  xi(i) = dot(X, v(:,i));
  nu(i) = dot(eta, u(:,i));
  alpha(i) = xi(i)*(s(i,i)*xi(i)+nu(i));
  h = @(t) ((s(i,i)*nu(i)*inv(xi(i))+1)*t-1)/(1-(1-s(i,i)^2)*t)^3;
  Hn = @(t) Hn(t)+s(i,i)*alpha(i)*h(t);
end

Answer 1

[Rik]

You need to initialize Hn as an anonymous function as well:

Hn = @(t) 0;

[Judith Wewerka]

Thank you!! I just forgot about this...

[Rik]

You're welcome. (If this solved your issue, could you mark this as accepted answer? It will give me reputation points and make it easier for others with similar questions to find this answer)

[Eray Tunç YILMAZ]

Hello,

I have a similar problem

f = @(x) 0;
for i=1:n
    f =(@x) f(x) + c(i) * cos(i*x);
end

where is c is a vector.

It gives an error as: parse error at f: usage might be invalid MATLAB syntax.

What is wrong here?

Thank you in advance

[Rik]

You should put this instead:

f = @(x) 0;
for i=1:n
    f =@(x) f(x) + c(i) * cos(i*x);
end