MATLAB: How to write matlab code for summation equation for the file attached. Pls help.

summation equation

Best Answer

P(i,k) = 0;
for j = 1 : N + M
   if (j ~= i)
      P(i,k) = P(i,k) + (1 - 2*B(i,j)*P(j,k) - B(i,o)) - b(i);
   end
end
P(i,k) = lambda(k) * P(i,k) / 2 / (a(i) + lambda(k) * B(i,i))

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You need to use 'vars', {x} option for matlabFunction

MATLAB: How to write a summation code when the k is not equal to j

yang-En, haven't heard from you. If the vectorized approach above is to confusing to you then try this simple and intuitive for loop. It basically uses the "continue" command to skip interations where j = k.

numPoints = 3; % Whatever...



lambda = randi(9, 1, numPoints) % Whatever...
f = randi(9, 1, numPoints) % Whatever...
h = randi(9, 1, numPoints) % Whatever...
K = length(lambda)
outerSum = 0;
for k = 1 : K
	innerSum = 0;
	% Do the inner sum over j with j not equal to k
	for j = 1 : length(h)
		if j == k
			continue; % Skip this iteration
		end
		innerSum = innerSum + h(j) * f(k);
	end
	outerSum = outerSum + lambda(k) * innerSum;
end
outerSum % Spew out to the command window so we can see what it is.

Best Answer

Related Solutions

MATLAB: How to read symbolic varibales in a n optimization model

MATLAB: How to write a summation code when the k is not equal to j

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