How does this matlab function works?

Could someone please explain how this function works in defining the matrices

For example,

B=zeros(size(A,1),1); C=eye(size(A));

Answer 1

[Azzi Abdelmalek]

doc size
doc zeros
doc eye

You can also try an example

>> A=[1 2 3;4 5 6]
B=zeros(size(A,1),1)
C=eye(size(A))

A =

     1     2     3
     4     5     6

B =

     0
     0

C =

     1     0     0
     0     1     0

[Priya]

Thank you.

[Priya]

The size of matrix A (in the model) is 14x14 B= 14x2 C= 14x14 D= 14x2

Now I need to how to use the function below to make the size of matrix B as 14x2

B=zeros(size(A,1),1)

Please drop your answers.