Introduction To MATLAB

Posted by : Unknown Tuesday, October 1, 2013

MAT LAB is a high level language used for analyze data, perform different mathematical operations and create models and different applications. MAT LAB Provides us a quick way to solve any mathematical problem. It's a best and quick way to solve any mathematical problem.

Some Useful MAT LAB Commands:

Matrices:

· Row Matrix:

For a single row matrix we use a single variable to display value. E.g.

>>a= [1, 2, 3]

a =

1 2 3

· Column Matrix:

For a single column matrix we use a single variable to display value. To display column matrix we use “;”.E.g.

>>a=[1;2;3]

a =

2
3

· Row, Column Matrix:

For a Row, Column Matrix we use a single variable to display value. To display column matrix we use “;”.E.g.

>>a= [1, 2, 3;4, 5, 6]

a = 1 2 3

4 5 6

Multiply a constant with Matrix :

>> a=2*[1, 2, 3; 4, 5, 6]

a =

2 4 6

8 10 12

· Operation of two Matrices:

For basic mathematical operation such as multiplication, addition, subtraction , the procedure is the same except the operator changes.i.e ‘+’’-’’*’’/’
E.g

To multiply two matrices we use “*” operator.
>> a=[1,2,3;3,4,5;6,7,8]

a = 1 2 3

3 4 5

6 7 8
>> b= [1;2;3]
b =
1

3
>> a*b
ans =
14

Inverse Of a Matrix :

To find inverse of a matrix , we use “inv()” for inverse of a matrix.
E.g.

>>a= [1, 2; 3, 4]

a =

1 2

3 4

>> inv (a)

ans =