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Day (3) of picking up matlab

2022-04-23 15:59:00 【Sola_ Ex】

Commands used ：

size(x);

return a That's ok b Column matrices

once()				% whole 1 matrix 
once()				%n*n Of all the 1 matrix 
once(m,n) 			%m*n Of all the 1 matrix

zeros()				% whole 0 matrix 
zeros(n)			%n*n Of all the 0 matrix 
zeros(m,n)			%m*n Of all the 0 matrix

eye(n)				%n*n The identity matrix of

fliplr(A)		% Flip left and right 
flipud(A)	% Flip up and down

inv(A)		% matrix A The inverse matrix 
pinv(A)		% matrix A The pseudo inverse matrix of

rank(A)		% Get matrix A The rank of

trace(A)			% matrix A The trace of

eig(A)						% The eigenvalue 
[V,D] = eig(A)			% Eigenvector

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