Matrix calculation + loop

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Florent Rouxelin
Florent Rouxelin 2017-6-29
编辑： Walter Roberson 2017-6-29
Does anyone knows to program the following in Matlab?
B0 [4x4]
I [4x4]
sigma [4x4]
Here is what I have so far, but this is wrong:
I = ones(4);
sigma_sum=V;
for t = 1:(T-1)
block=I;
for i = 1:t
block = (block + B0.^i)*V*(block + B0.^i)';
end
sigma_sum = sigma_sum + block;
end
Thanks for your help!

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回答（1 个）

James Tursa
James Tursa 2017-6-29
Maybe this is what you want:
B0 = whatever
V = whatever
sigma_sum = V;
M = eye(4); % <-- I am guessing that you really need eye(4) here instead of ones(4)
for t=1:(T-1)
M = M + B0^t; % <-- Used ^t instead of .^t here ... again I am guessing a bit here
sigma_sum = sigma_sum + M*V*M';
end

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