I have n*n matrix.I want to get all the elements of 1st column of nth rows like A(:,1). Now how will i arrange all the n elements into a single row i,e b=[A(1,1) A(2,1) A(3,1)............ A(n,1)].What will be the command for n being large say 5000?

I have n*n matrix.I want to get all the elements of 1st column of nth rows like A(:,1). Now how will i arrange all the n elements into a single row i,e b=[A(1,1) A(2,1) A(3,1)............ A(n,1)].What will be the command for n being large say 5000?

Answer 1

[Stephen23]

The most general, correct answer is to use transpose .' (rather than conjugate transpose '):

A(:,1).'

[phoenix]

what is the difference between transpose and conjugate transpose(i.e between A(:,1).'and A(:,1)' ) ?

[James Tursa]

If A is real, there is no difference in the result. If A is complex, then ' will conjugate the elements (i.e., negate the imaginary part), whereas .' will not conjugate the elements.

Answer 2

[KSSV]

b = A(:,1)' ;