SIZE

 

 Matrix dimensions.

  D = SIZE(X), for M-by-N matrix X, returns the two-element

  row vector D = [M, N] containing the number of rows and columns

  in the matrix.

 

 

  [M,N] = SIZE(X) returns the number of rows and columns

  in separate output variables.

 

 

  M = SIZE(X,1) returns just the number of rows.

  N = SIZE(X,2) returns just the number of columns.