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Lecture 1

Post-Graduate Students

Advanced Programming (Introduction to

MATLAB)Code: ENG 505

Dr. Basheer M. Nasef

Computers & Systems

Dept.http://www.bmabdelaty.faculty.zu.edu.eg/Default.aspx

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Evaluation

100 Total

70 Written

30 Term Work

26 – 11 - 2015Group Name

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Books Main textbook: MATLAB® An Introduction with Applications, Fourth Edition, Amos Gilat.

An Engineer’s Guide to MATLAB With Applications from Mechanical, Aerospace, Electrical, Civil, and Biological Systems Engineering, Third Edition

INTRODUCTION TO MATLAB® & SIMULINK 3rd Edition, O. BEUCHER and M. WEEKS

Additional readings:

Matlab help

Any useful tutorial, article or ppt on the web

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Course Outline

1. Starting with Matlab.

2. Arrays and Matrices.

3. Mathematical operations on arrays.

4. M-files and data I/O.

5. 2-D plots.

6. Programming in Matlab.

7. User defined functions.

8. Polynomials and curve fitting.

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Course Outline

9. Symbolic math.: integration and differentiation.

10. Simulink.

11. Control Systems.

12.Fluid Mechanics. Or Heat Transfer.

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Agenda

Starting with Matlab:

1)Matlab Windows.

2)Arithmetic Operations.

3)Scalar Variables.

4)Introduction to m-files.

5)Examples.

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Matlab Windows

Start Matlab from your programs list to have:

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Matlab Windows

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Command Window Typing a command, using up/down arrows.

Semicolon. ;

Comments using %

clc command.

Command history window.

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Arithmetic Operations

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Order of precedence:

Use MATLAB as a Calculator !

Arithmetic Operations

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Arithmetic Operations

Display Format:

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Math Built-in Functions

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Math Built-in Functions

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Math Built-in Functions

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Scalar Variables

Using the assignment operator =

There are rules in naming variables.

Variable_name = A numerical value, or a computable expression

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Scalar Variables

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Rules About Variable Names

A variable can be named according to the following rules:

1. Must begin with a letter.2. Can be up to 63 characters long.3. Can contain letters, digits, and the underscore

character.4. Cannot contain punctuation characters (e.g

period, comma, semicolon).

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Rules About Variable Names

5. MATLAB is case sensitive: it distinguishes between uppercase and lowercase letters. For example, AA, Aa, aA, and aa are the names of four different variables.

6. No spaces are allowed between characters (use the underscore where a space is desired).

7. Avoid using the name of a built-in function for a variable (i.e., avoid using cos, sin, exp, sqrt, etc.). Once a function name is used to define a variable, the function cannot be used.

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Predefined Variables and Keywords

Used in programming:

Others:

ans, pi, i, j, inf, Nan

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M-files

A different (better) way of executing commands

with MATLAB is first to create a file with a list of

commands (program), save it, and then run

(execute) the file.

M-file is also called script file.

Using a script file is convenient because it can be

edited (corrected or otherwise changed) and

executed many times.

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M-files

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M-files

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It is better to run your m-file from the current folder

M-files

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Example 1

Verify: at

Solution:

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Example 2

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Example 2

Solution:

Try m-file !

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Material & problems

We have covered Chapter 1 from Gilat.

Problems you can try:

1--10, 27,39,40