how to apply a function to all rows in a matrix? [duplicate]

Answer 1

You can do it without converting to a cell array:

arrayfun(@(n) norm(A(n,:)), 1:size(A,1))

Answer 2

Like this?

M = 1e4;
N = 1e3;
A = randn(M, N);

% Solve
B = mat2cell(A, ones(M, 1), N);
b = cellfun(@norm, B);

Maybe arrayfun could be used instead?