% how to use create and use vectors

% variables declaration
i = 1; n = 5; 

% vector creation
a = i:n

% variables declaration
i = 5; n = 1;

% vector creation
b = i:n

% variables declaration
i = 1; k = 2; n = 10; 

% vector creation
c = i:k:n

% variables declaration
i = 10; k = -2; n = 1; 

% vector creation
d = i:k:n

% fix function
m = fix((n-i)/k)

% vector length
length(d)

% matrix (explicitly given)
% ; switch writing to the next raws
A = [97 110 99; 105 109 112]

% matrix by concatenating vectors
% along dim = 1 (raws)
B = cat(1, a, c)

% along dim = 2 (columns)
B = cat(2, a, c)

% using : one get column vector
c = A(:)

%