The MathWorks Certified MATLAB Associate (MCMA) exam is indeed 50 multiple choice questions. The time limit and passing score vary among the instances of the exam. (This difference corrects for exam instances that are easier or harder than the others, and helps to maintain a consistent standard for the credential.) At this level you can expect to complete the entire process (sign-in, instructions, exam, sign-out) in under three hours.Identify the core components of the MATLAB desktop environment and explain their purpose • Interactively import data into the MATLAB environment • Examine data variables using the Variable Editor • Create and customize data plots using Plot Tools • Save and load MATLAB variables to and from disk interactively

1. TRAINING PROGRAMME ON
MATLAB ASSOCIATE EXAM
MODULE-I

2. MODULE-I
Working with the MATLAB User Interface
• Identify the core components of the MATLAB
desktop environment and explain their purpose
• Interactively import data into the MATLAB
environment
• Examine data variables using the Variable Editor
• Create and customize data plots using Plot Tools
• Save and load MATLAB variables to and from disk
interactively

3. Identify the core components of the MATLAB
desktop environment and explain their purpose
• you can enter MATLAB by double-clicking on
the MATLAB shortcut icon MATLAB2015(a)on
your Windows desktop. When you start
MATLAB, a special window called the MATLAB
desktop appears. The desktop is a window
that contains other windows.

4. core components of the MATLAB
desktop environment
• The major tools within or accessible from the
desktop are:
• The Command Window
• The Command History
• The Workspace
• The Current Directory
• The Help Browser
• The Start button

6. Examine data variables using the
Variable Editor
• Creating MATLAB variables
• MATLAB variables are created with an
assignment statement. The syntax of variable
as-signment is
• variable name = a value (or an expression)
• For example,
• >> x = expression

7. • where expression is a combination of
numerical values, mathematical operators,
variables, and function calls. On other words,
expression can involve:
• manual entry
• built-in functions
• user-defined functions

8. commands
• Who
• Whos
• Double click
• Save
• Load
• Press tab to get ur command
• Shift+f1
• help

11. Overwriting variable
• Once a variable has been created, it can be reassigned. In
addition, if you do not wish to see the intermediate results,
you can suppress the numerical output by putting a
semicolon(;) at the end of the line. Then the sequence of
commands looks like this:
>> t = 5;
>> t = t+1
t =
6

12. Error messages
• If we enter an expression incorrectly, MATLAB will
return an error message.
• For example, in the following, we left out the
multiplication sign, *, in the following expression
>> x = 10;
>> 5x
??? 5x
• |
• Error: Unexpected MATLAB expression.

13. Types of file extensions
• .m file
• .mdl file
• .fig file
• .mat file

17. Handling arrays(vectors &matrix )
• A vector is a special case of a matrix. The
purpose of this section is to show how to
create vectors and matrices in MATLAB. As
discussed earlier, an array of dimension 1×n is
called a row vector, whereas an array of
dimension m×1 is called a column vector.

18. Vector entry
>> v = [1 4 7 10 13]
v =
1 4 7 10 13
>> w = [1;4;7;10;13]
w =
1
4
7
10
13

19. transpose
• >> w = v’
w =
1
4
7
10
13

22. Entering matrix

23. Matrix indexing

24. Colon operator in a matrix
• >> A(2,:)
ans =
4 5 6
is the second row elements of A
• The colon operator can also be used to extract a sub-
matrix from a matrix A
• >> A(:,2:3)
• ans =
2 3
5 6
8 9

25. Colon operator in a matrix
• A row or a column of a matrix can be deleted
by setting it to a null vector, [ ].
• >> A(:,2)=[]
• ans =
1 3
4 6
7 0

26. Creating a sub-matrix
• To extract a submatrix B consisting of rows 2
and 3 and columns 1 and 2 of the matrix A do
the following
• >> B = A([2 3],[1 2])
B =
4 5
7 8

27. INTERCHANGE
• To interchange rows 1 and 2 of A , use the
vector of row indices together with the colon
operator.
• >> C = A([2 1 3],:)
• C =
4 5 6
1 2 3
7 8 0

28. SOME MORE COLON OP
• A(:,j) is the j th column of A
• while A(i,:) is the I th row
• A(end,:)picks out the last row of A

29. END OPERATOR

30. Deleting row or column & Restoring

32. Concatenating matrices

33. Matrix generators

34. Matrix arithmetic operations

35. multiplication

37. Solving linear equations

38. In matlab
>> A = [1 2 3; 4 5 6; 7 8 0];
>> b = [1; 1; 1];
>> x = inv(A)*b
x =
-1.0000
1.0000
-0.0000

39. Another method
A = [1 2 3; 4 5 6; 7 8 0];
>> b = [1; 1; 1];
>> x = Ab
x =
-1.0000
1.0000
-0.0000

40. Matrix functions