What is a vector?or what are vector coordinates?

Hellow sir,Can any one tell me what is a vector in matlab(or vector coordinates).Can u please explain me with a small example taking any function.??its urgent sir..plz help..!!

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/29922-why-your-question-is-not-urgent-or-an-emergency

Answer 1

[Andreas Goser]

A vector in MATLAB is any kind of 1xn or nx1 matrix like

a=[1 2 3]

I have no idea what vector coordinates are, maybe indices? Like

a(2)

returns element number 2?

[Manoj Murali]

Thanks a lot sir..:)