MATLAB: Vectorizing nested for loops

nested loopsvectorizing

Hello, I'm relatively new to Matlab and am having some difficulties vectorizing my code. Although I'm sure that the answer to my question exists somewhere, I confess that I haven't yet found it. Anyway, I'm trying to vectorize the following nested for loops: for i=2:rho {for|j=1:zDim {phi(i,j) = phi(1,j)/(1+i)}}

It's certainly just a rookie question, but I appreciate any advice.

Best Answer

bsxfun(@rdivide,phi,(1+(2:rho))')

here phi vector row

or use first row of 'phi' matrix

bsxfun(@rdivide,phi(1,:),(1+(2:rho))')

Related Solutions

MATLAB: Vectorise an n dimensional raise to the power loop

You can call BSXFUN more than once:

x = rand(1,1000);
m = 30;
n = 40;
tic
P1 = zeros(m,n,numel(x));
for ii = 1:n
    for jj = 1:m
        P1(jj,ii,:) = x.^jj.^ii;
    end
end
toc
tic
P2 = bsxfun(@power, bsxfun(@power,permute(x,[3 1 2]),(1:m)'), 1:n);
toc
isequal(P1,P2)

MATLAB: I am getting an error of ‘Subscript indices must either be real positive integers or logicals’ while solving a runge kutta problem

Change this line

 phi2= (1-phi)+phi((rhos*cps)/(rhof*cpf));

 phi2= (1-phi)+phi*((rhos*cps)/(rhof*cpf));

Best Answer

Related Solutions

MATLAB: Vectorise an n dimensional raise to the power loop

MATLAB: I am getting an error of ‘Subscript indices must either be real positive integers or logicals’ while solving a runge kutta problem

Related Question