Type of matrices:

Type of matrices:

There are many types of matrices which are described as below.

Row matrix:

                       A type of matrix in which only one row exist.The number of columns does not matters.Columns may be one or two or more than two.

For example:

                        ⟮1 5 7 9 ⟯  , ⟮2 1 3⟯

column matrix:

                              A type of matrix  in which only one column exist.The no of rows does not matter.Whether they are one or two or three.

For example:

                   

  

Rectangular matrix:

                                      A type of matrix in which number of rows not equal to number of column.There may be 2 rows and 5 columns or 7 rows and 4 columns.

For example:

Square matrix:

                            A matrix in which the number of rows are always equal to the number of columns.

For  a square matrix it is important that the number of rows should be equal to the number of columns.

For example:

Diagonal matrix:

                            A  square matrix is said to be diagonal when at least one element of principal diagonal is non zero and the other all elements may or may not be zero be zero.For diagonal matrix it is important that the matrix is square matrix.

Foe example:

null or zero matrix:

                                      A matrix is said to be null or zero matrix if all the elements of the matrix are zero.

For example;

Scalar matrix:

                            A diagonal matrix is said to be scalar if the diagonal elements are the same.

For example:

Unit or Identical matrix:

                                               A matrix is said to be unit or identical matrix when it principal diagonal elements are equal to 1.

For example: