Difference in Array, Row vector, column vector, matrix and scalar values in MATLAB.

?The fundamental unit of data in MatLab is the array.

èArray:

          An array is the collection of data values organized into rows or columns or both. So Arrays are further classified according to this difference in dimensions.

  ÄRow vector:

                             These are the one dimension arrays known as row vectors .they contain collection of data values organized into 1 row but N columns, so order of a row vector is  1×N.

For example:  [1 2 3 4]

   Matlab Declaration of a 1×4 Row vector:    a=[1 2 3 4]

   Result: a =1     2     3     4

  ÄColumn vector:

                               These are also one dimension arrays known as column vectors. They contain collection of data values organized into 1 column but M rows, so order of column vector is M×1.

   MatLab declaration of a 4×1 column vector:  a=[1;2;3;4]

   Result:

a =     1

          2

          3

          4

   Ä Matrix:

                    These are two or multidimensional arrays known as matrix. They contain collection of data values organized into M rows and also N coulms.so order of a matrix is M×N.

    MatLab declaration of a 2×2 matrix: a=[1 2;3 4]

    Result: a = 1     2                                   

                    3     4

   ÄScalars:

                    These are one dimensional array known as scalars. Scalars contain collection of data values organized into 1 row and 1 column only so order of scalar values is 1×1.

   Example: [5]

   MatLab declaration of scalar values: a=[5]

   Result: a=5