A complete slide On Matrix Addition, Subtraction and Multiplication.

1. Matrix And It’s
Operation
(Addition, Subtraction
& Multiplication).

2. Submitted To:
Submitted By:
MD. Mohiuddin
Lecturer
Department Of Natural Science
Daffodil International University
Nirnay Mukharjee
ID :– 143 - 15 – 4421
Department Of CSE
Daffodil International University

3. Index
About Matrices
Matrix Addition
Matrix Subtraction
Matrix Multiplication

4. About Matrices
 A matrix is a rectangular
arrangement of numbers in rows and
columns. Rows run horizontally and
columns run vertically.
 The dimensions of a matrix are stated
“m x n” where ‘m’ is the number of
rows and ‘n’ is the number of
columns.

5. •Only matrices with the same
dimensions can be added or
subtracted.
•The resulting matrix has the same
dimension of the two matrices being
added or subtracted.
Matrix Addition And
Subtraction

6. Example Of Matrix Addition
1.
−2 0 4
3 −10 12
3 −2 −2










+
−4 6 0
−15 2 −4
6 7 1










6 6 4
12 8 8
9 5 1
− 
 − − 
 − 
−2 − 4 0 + 6 4 + 0
3 −15 −10 + 2 12 − 4
3 + 6 −2 + 7 −2 + 1










Add the
corresponding
elements in each
matrix

7. 3.
2 −18
20 −5





 −
−4 2
−5 1






2 − (−4) −18 − 2
20 − (−5) −5 −1






6 −20
25 −6






Example Of Matrix
Subtraction

8. Matrix
Multiplication
In Matrix Multiplication, if A is an n × m matrix and B is
an m × p matrix, their matrix product AB is
an n × p matrix. In which the n entries across a row
of A are multiplied with the p entries down a columns
of B and summed to produce an entry of AB.

9. Example Of Matrix
Multiplication
A = B =1 2 3
4 5 6
7 8 9
1 5 9
7 2 9
3 8 1
AB = 1x2+2x7+3x3 1x5+2x2+3x8 1x9+2x9+3x1
4x1+5x7+6x3 4x5+5x2+6x8 4x9+5x9+6x1
7x1+8x7+9x3 7x5+8x2+9x8 7x9+8x9+9x1

10. AB =
25 33 30
57 78 87
90 123 144

11. Thank You
Any Question???