in workshop

1. MATLAB
Mr Elaventhan.A, Project Engineer
Pantech ProEd Pvt Ltd, Trichy

2. Agenda:
• Introduction
• Commands
• Operators
• Functions
• GUI
• How to Generate GUI?
• TMS320C6745 Introduction
• TMS Procedure
• Demo

3. Introduction
 MATLAB  MATrix LABoratory
 Developed by CleveMoler in 1984 as a teaching tool
 High performance language for technical computing
 Typical uses are,
 numerical computation
 Data analysis ,plotting and visualization
 Graphical user interface building
 Algorithm development and modelling

4. MATLAB Desktop Tools
 Command Window
 Command History
 Workspace
 Current Directory
 Editor Window

5. MATLAB Desktop

6. General Purpose Commands
 clc , clear ,close all
 save
 who , whos
 cd , ls
 disp
 Version
 Pwd
 Floor,round,abs
 date

7. Clear
 clear removes items from workspace,
freeing up system memory
 Examples of syntax:
 clear

8. Graph Functions
 plot linear plot
 stem discrete plot
 grid add grid lines
 Xlabel add X-axis label
 Ylabel add Y-axis label
 title add graph title
 Subplot divide figure window
 Figure create new figure window
 Pause wait for user response

9. Arithmetic Operators
 plus - Plus +
 uplus - Unary plus +
 minus - Minus -
 uminus - Unary minus -
 mtimes - Matrix multiply *
 times - Array multiply .*
 mpower - Matrix power ^
 power - Array power .^
 mldivide - Backslash or left matrix divide
 Mrdivide - Slash or right matrix divide /
 ldivide - Left array divide .
 rdivide - Right array divide ./

10. Logical Operators
 Short-circuit logical AND &&
 Short-circuit logical OR ||
 AND - Element-wise logical AND &
 OR - Element-wise logical OR |
 NOT - Logical NOT ~
 XOR - Logical EXCLUSIVE OR
 Any - True if any element of vector is nonzero
 All - True if all elements of vector are nonzero

11. Bitwise Operators
 bitand - Bit-wise AND.
 bitcmp - Complement bits.
 bitor - Bit-wise OR.
 bitmax - Maximum floating point integer.
 bitxor - Bit-wise XOR.
 bitset - Set bit.
 bitget - Get bit.
 bitshift - Bit-wise shift.

12. Relational Operator
 < Less than
 <= Less than or equal to
 > Greater than
 >= Greater than or equal to
 == Equal to
 ~= Not equal to

13. Matrix Creation
 When entering a matrix, separate columns by
spaces or commas; separate rows by semicolons.
For example, typing:
A = [1 2; 3 4]
results in:
A = 1 2
3 4

14. Elementary Matrices
 eye – Identity matrix---- x= eye(m,n).
 ones – 1’s matrix ---- y=ones(m,n);
 zeros – 0’s matrix ---- z=zeros(m,n);
 magic – generate square matrix – w= magic(4);
 rand – uniformly distributed random numbers -- q=
rand(m,n);

15. Save And Load The Variable
A=5;
save A A;
load A;
B=1;
C=A+B;
disp(C);

16. Plot
t=0:0.25:7;
y = sin(2*pi*10*t);
plot(t,y) ;

17. Plot
t=0:0.25:7;
y = sin(t);
plot(t,y) ;
xlabel('x axis');
ylabel('y axis');
title('Heading');
grid on;
gtext('text');

18. IF LOOP
a=5;
if a > 6
disp('a is greater');
else
disp('a is smaller');
end

19. For Loop
a=5;
for i=1:5
a=a+1
end
disp(a);

20. While Loop
a=5;
while a < 10
a=a+1;
end
disp(a);

21. GUI
• A graphical user interface (GUI) is a user
interface built with graphical objects, such as
buttons, text fields, sliders, and menus. In
general, these objects already have
meanings to most computer users.

22. User Interface Controls
• Push Buttons
• Toggle Buttons
• Radio Buttons
• Checkboxes
• Popup Menus
• Edit Text
• Axes
• Static Text
• Figures

23. GUI Window

24. Thank You!!

26. Contact Us
• Con Person:
Sowmiya.S, Event Coordinator
• Con No:
7200045955
8807058158
• Mail Id:
Trichy.DSP@pantechmail.com
Senthilmurugan.m@pantechmail.com