How can Write a function that combines two lists by alternatingly taking elements, e.g. [23,11,70], [1,2,3] → [23,1,11,2,70,3].

function C= concat(L1,L2) T=[L1(1),L2(1)]; for i=2:length(L1) T(end+1)=L1(i) T(end+1)=L2(i);

         end
         C=T;

end

Answer 1

[Star Strider]

Using the reshape function:

A = [23,11,70];
B = [1,2,3];
Out = reshape([A; B], 1, [])

Out =
    23     1    11     2    70     3

[anas birrow]

thanks for ur help but i need this code in function to calling it

[Star Strider]

I am not certain what you are asking.

See if this does what you want:

function C = concat(L1,L2)
C = reshape([L1; L2], 1, [])
end

or using an anonymous function:

concat = @(L1,L2) reshape([L1; L2], 1, []);

Answer 2

[KL]

No need to use a loop,

A = [1 2 3 4 5];
>> B = 10*A;
>> C = zeros(size([A B]));
>> C(1:2:end) = A;
>> C(2:2:end) = B;
>> C
C =

      1   10    2   20    3   30    4   40    5   50

Answer 3

[anas birrow]

thanks for all of you