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?

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phoenix 2018-5-14

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编辑： James Tursa 2018-5-14

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Answer 1

Stephen23 2018-5-14

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编辑：Stephen23 2018-5-14

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

A(:,1).'

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phoenix 2018-5-14

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

James Tursa 2018-5-14

编辑：James Tursa 2018-5-14

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.

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