how to create a matrix in matlab

I have A=[1 3; 2 4]; and B=[5 6; 7 8];

I would like to create this two matrix line by line in C :

C=[1 3;5 6; 2 4; 7 8];

[Sena Koçak]

By writing, C = [A(1,:);B(1,:);A(2,:);A(2,:)]

[marwa hajji]

great , but it is possible to use loop

[Sena Koçak]

I wrote on my phone, so I hope there is error in that. There are simply two case, odd and even number of total row. Maybe there exists a simple solution, but it works :)

[sizeRowA sizeColA] = size(A); [sizeRowB sizeColB] = size(B);

C = zeros(sizeRowA + sizeRowB, sizeColA);

if (rem((sizeRowA + sizeRowB),2) == 0) for i = 1:((sizeRowA+sizeRowB)/2) C(2*i-1,:) = A(i,:); C(2*i,:) = B(i,:); end else for i = 1:((sizeRowA+sizeRowB-1)/2) C(2*i-1,:) = A(i,:); C(2*i,:) = B(i,:); end C(sizeRowA+sizeRowB,:) = A(sizeRowA,:) end

[marwa hajji]

thank you very much , yes exactly!!!!

[Image Analyst]

@marwa hajji did you see my Answer below (scroll down to the official Answers section, not up here in the comments section which is supposed to be used to ask the original poster for clarification)?

Answer 1

[Benjamin Thompson]

A couple different ways:

>> A = [1 3; 2 4]

A =

1 3

2 4

>> B = [5 6; 7 8]

B =

5 6

7 8

>> C = A

C =

1 3

2 4

>> C = [C; B]

C =

1 3

2 4

5 6

7 8

>> C = [A; B]

C =

1 3

2 4

5 6

7 8

[Image Analyst]

This

C =

1 3

2 4

5 6

7 8

is not what he wanted. He said he wants

C=[1 3;5 6; 2 4; 7 8]

C = 4×2

1 3 5 6 2 4 7 8

Answer 2

[Image Analyst]

Try this:

A=[1 3; 2 4]

A = 2×2

1 3 2 4

B=[5 6; 7 8]

B = 2×2

5 6 7 8

% What is desired:
C = [1 3;5 6; 2 4; 7 8]

C = 4×2

1 3 5 6 2 4 7 8

% My code
C2 = [A(1,:); B(1, :); A(2,:); B(2,:)]

C2 = 4×2

1 3 5 6 2 4 7 8

If you need it generalized to interleave a different number of rows than 2, or if A and B might have different numbers of rows, then it would be more complicated.