MATLAB: Change matrix form and arrangement

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Hi all

i would like to get some help in this problem

i have very large matrix like this small example

A1=[1.1 2.1 3.2 4.1 5.3 6.2]

A1=

1.1 2.1 3.2 4.1 5.3 6.2

i want to change A1 to be like A2

A 2=

1.1 3.2 5.3

2.1 4.1 6.2

i maen the second number in A1 be under the first one and so on for complete matrix

thank you very much for helping

reshape(A1,[2,3])

Try this:

A(A==0)=[]

A =[2,6,3,1,7;9,4,2,6,3;7,1,4,5,3;7,2,5,6,3;4,2,5,3,5];
A1 = A(1:3, :);
A2 = A(4:5, :);
B = cat(1, A1, A2);  % Or [A1; A2]

These basic array operations are explained exhaustively in the Getting started chapters of the documentation.