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# Types of Matrices.Rows Matrix,Columns Matrix,Square Matrix,Rectangular Matrix.... | Class_2 |

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Types of Matrices.Rows ,Columns Matrix.... | Class_2 |

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### Types of Matrices.Rows Matrix,Columns Matrix,Square Matrix,Rectangular Matrix.... | Class_2 |

1. 1. www.facebook.com/fcoursesbd Follow Now Type of Matrices:  Row Matrix: A Matrix consisting of a single row is called row matrix Example: [ 1, 2, 3 ], [ 4, 5 ]  Column Matrix: A Matrix consisting of a single column is called column matrix. Example: 1 2 3 , 5 6  Null/Zero/Void Matrix: A Matrix whose all elements are zero is called zero/null/void matrix. Example: 0 0 0 0 , 0 0 0 0 0 0 0 0 0  Rectangular Matrix: A Matrix whose rows and columns are not equal is called Rectangular Matrix. Example: 1 2 3 4 5 6 , 1 2 3 4 5 6 2×3 , 3×2
2. 2. www.facebook.com/fcoursesbd Follow Now  Square Matrix: A Matrix with the same number of row and same number of column is called square matrix. Example: 1 2 3 4 , 1 2 3 4 5 6 7 8 9  (a) Diagonal Matrix: A Square matrix whose all non-principal elements are zero except principal diagonal is called diagonal matrix. Example: 1 0 0 0 5 0 0 0 9 Note: 1 2 3 4 5 6 7 8 9 1 0 0 0 5 0 0 0 9 Figure: Principal Diagonal Matrix  Scalar Matrix: A Square matrix whose all principal elements are same called Scalar matrix: Example: 3 0 0 0 3 0 0 0 3 , 2 0 0 2
3. 3. www.facebook.com/fcoursesbd Follow Now  Identity of Unit Matrix: A Square diagonal matrix whose all elements principal elements are equal to 1 is called identity or unit matrix Example: 1 0 0 0 1 0 0 0 1 , 1 0 0 1  Sub Matrix: A matrix obtained by deleting some of the rows or columns of a matrix is said to be a sub matrix. Example: 1 2 3 4 5 6 7 8 9 = 5 6 8 9