1. Matlab Programming for Engineers
Introduction to Matlab Matlab Basics Branching Statements Loops User Defined Functions Additional Data Types Input/Output Functions Simulink Toolbox Important Toolboxes (if time is available)
Dr. Bashir Nouri

2. The Advantages of Matlab Disadvantages of Matlab
Objectives:
The Advantages of Matlab
Disadvantages of Matlab
The Matlab Environment
Using Matlab as a scratch Pad

3. Advantages and Disadvantages of Matlab
Matlab == MATrix LABoratory
Advantages:
Ease of Use
Platform Independent (All versions of Windows, Linux, Unix, Mac.)
Predefined Functions and Toolboxes
Device-Independent Plotting
Graphical User Interface
Matlab compiler
Disadvantages:
Interpreted programming language, slower than C++ and V. Fortran.

4. The Matlab Environment
Matlab Command Window
User input area
Also results appear in this window
Current directory browser
Command history

5. The Matlab Environment

6. The Matlab Environment
Script files / M-files

7. The Matlab Environment
The Edit/Debug Window

8. The Matlab Environment

9. The Matlab Environment (Figure Windows)

10. The Matlab Environment (Figure Windows)

11. The Matlab Environment (Workspace)
whos
Display the value of any variable in the WS
clear var1 var2
Double-click any var in the WS browser

12. The Matlab Environment (Workspace)

13. The Matlab Environment (Getting Help)

14. The Matlab Environment (Getting Help)

15. The Matlab Environment (Getting Help)
lookfor: Search the quick summery information in each file

16. The Matlab Environment (Getting Help)
help: Search function name

17. The Matlab Environment (Getting Help)

18. The Matlab Environment
A few important commands
clc: clears command window
clf: clears current figure
clear: clear variables in the WS
Ctrl+c: aborts the execution of the program
exit: exits Matlab
!(command): runs the command in the operating system (ex. dir, copy …)
save/load (WS): saves and loads the WS

19. If a command (name) is executed Matlab seeks for:
The Matlab Search Path
If a command (name) is executed Matlab seeks for:
A variable with the same name in the current WS.
M-file in the same directory
M-file in the any directory in the search path
Sequence is important

20. MATLAB Math & Assignment Operators
Power: (^) or (.^)  a^b or   a.^b
Multiplication: (*) or (.*)  a*b  or  a.*b
Division: (/)  or  (./)  a/b  or  a./b   
or  (\)  or (.\)  b\a  or  b.\a
NOTE:         56/8 = 8\56
Addition: (+)      a + b
Subtraction:  (-)        a – b
Assignment:  (=)    a = b     (assign b to a)

21. HW1
The distance traveled by a ball falling in the air is given by the equation
Use the Matlab to plot the path of the ball (y) as a function of time from t=0s to t=5s, if