Writing math formula into the matlab

I try to write the below formula:

h=sum(H1(l*m)^r);

Is that true in your opinion?

Thanks for the help.

[Azzi Abdelmalek]

your question is not clear

[hamed]

This is my H Matrix in another function, that I will use this function into the another function:

function [H1,c,s,path,d,m]=topology1(topo) if (strcmp(topo,'access')) % This is for access-core H=zeros(24,18,3); H1=zeros(size(H,1),size(H,2),3); H1(:,:,1) = H(:,:,1);

So, I use the above function in below function:

function TrumpNew(topo,w) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % This program solves the problem of Utility-Exp_cost with Trump by He et. % Today is 27 ,July %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% [H1,c,ms,path]=topology1(topo); [l,r,m]=size(H1); maxc=max(c);

beta_p=1e-4; gamma=0.1; z1=(maxc/r)*ones(r,1); % initial the flow rate y=H1*z1; % initial the efficent capacity for the link / Why we don't z2=zeros(r,1); h=sum(H1(l*m)^r);

Cheers

Answer 1

[Thorsten]

It depends on the context, but your code is probably wrong. You have some variable H that seems to vary according to i, l and j. If you have set up your H such that l varies along a column, you can write

h = sum(H)

where j and l could are varying along the 2nd and 3rd dimension.

[hamed]

Thanks a lot for your answer. Actually, the H matrix is:

[l,r,m]=size(H1);

Which, I want to map r as i and m as j. In this case, could it be written as you have mentioned?

Cheers

[Thorsten]

Yes. sum sums over the first dimension, which is l in your case. And that's what the formula says.

BTW:

S = sum(X,DIM) sums along the dimension DIM.