CPET190_Lect1

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August 22, 2005 Lecture 1 - By P. Lin 1

CPET 190

Lecture 1

Problem Solving withMATLAB

http://www.etcs.ipfw.edu/~lin

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Lecture 1: Introduction

IntroductionObjectives of the Course

Course Syllabus and Class Objectives Problem Solving

What is a Problem & Problem Solving

Why Teach Problem Solving

Types of Problems Collaborative, Team-Based Problem Solving

Problem Solving with a Computer

Define the problem

Formulate a mathematical model Develop an algorithm

Write the codes for the problem

Test program and verify the solution

Document the program and solution

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Lecture 1: Introduction(continue)

Introduction to MATLAB What is MATLAB

The Advantages of MATLAB

Disadvantages of MATLAB

The MATLAB Environment

A Sample MATLAB Session

Example 1: Calculate I = watt/volt

Example 2: Calculate the area of a circle with aradius of 0.001 inch (r2).

Example 3: Sum of 12 numbers with continuestatement on successive lines by typing anellipsis () at the end of the first line

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Syllabus

WebCT: http://webct.ipfw.edu/

Web Site:

http://www.etcs.ipfw.edu/~lin Email: [email protected]

Test Date

Grading
http://webct.ipfw.edu/http://www.etcs.ipfw.edu/~linmmailto:[email protected]:[email protected]://www.etcs.ipfw.edu/~linmhttp://webct.ipfw.edu/

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Course Outcomes

1. Knowledge and skills of using MATLAB as a practical,technical problem solving tools (Criterion 2, Item a)

2. An ability to apply problem solving sills in mathematicsand engineering technology problems (Criterion 2, Item b)

3. An ability to discuss ways and means of analyzingtechnical data (Criterion 2, Item c)

4. An ability to practice technical problem solving processincluding problem formulation, understand the problem,problem analysis, collect data, model development,algorithm development, solution implementation, solutionverification, and report/presentation (Criterion 2, Items c,d, f, g)

5. Understanding of professional and ethical responsibility

(Criterion 2, Item i, j)6. Understanding of the contemporary engineering

technology application issues (Criterion 2, Item k)

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Text Book & References Text book:

MATLLAB Programming for Engineers, newest Edition, by Stephen

J. Chapman, 3rd

., from Brooks/Cole Thomson Learning,http://info.brrokscole.com/chapman

Computer, Software, Internet Connection: MATLAB Student Version with SIMULINK, available for purchase

from The MathWorks, Inc., http://mathworks.com

Off campus students are required to have their own PCs, andinstall Student version of MATLAB and SIMULINK.

Internet connection from home, IPFW, or work is required.

References

Math Problem Solving, John Hopkins University,http://cty.jhu.edu/math/solving/

Mathworks MATLAB Examples,

http://www.mathworks.com/access/helpdesk/help/techdoc/matlab.shtml

MATLAB Basics -http://www.maths.uq.edu.au/~mrb/tutors/matlabbasics.html

MATLAB Basic Tutorial,http://www.engin.umich.edu/group/ctm/basic/basic.html
http://info.brrokscole.com/chapmanhttp://mathworks.com/http://cty.jhu.edu/math/solving/http://www.mathworks.com/access/helpdesk/help/techdoc/matlab.shtmlhttp://www.mathworks.com/access/helpdesk/help/techdoc/matlab.shtmlhttp://www.maths.uq.edu.au/~mrb/tutors/matlabbasics.htmlhttp://www.engin.umich.edu/group/ctm/basic/basic.htmlhttp://www.engin.umich.edu/group/ctm/basic/basic.htmlhttp://www.maths.uq.edu.au/~mrb/tutors/matlabbasics.htmlhttp://www.mathworks.com/access/helpdesk/help/techdoc/matlab.shtmlhttp://www.mathworks.com/access/helpdesk/help/techdoc/matlab.shtmlhttp://cty.jhu.edu/math/solving/http://mathworks.com/http://info.brrokscole.com/chapman

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Overview of the Course

Topics of Discussion Problem solving definition, process, techniques,

strategies, tools, etc

MATLAB basics and advanced data types,commands, script, functions, and program controls

Math Equations and their graphs Elementary MATLAB Math functions and their

applications

Programming with MATLAB, File I/Os

MATLAB Problem Solving Applications in

Electronics and Electrical, Physics, EngineeringTechnology, Data Analysis, etc

Problem Solving Projects: team-based, collaborativeproblem solving

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Problem Solving

Definition of Problem Solving

What is a Problem1,2A situation, quantitative orotherwise, that confronts an individual or group ofindividuals for a specific purpose that requiresresolution, and for which the individual see no apparentor obvious means or path to obtaining the solution.

What is Problem Solving1,2A process in which one

individual uses previously acquired knowledge, skills,and understanding to satisfy the demands of anunfamiliar situation.

Why Teach Problem Solvingstimulate students topractice critical thinking and prepares students to usemath, physics, science, and discipline specific

knowledge to solve real-world problems.

[1] Problem Solving, A Handbook for Teacher, by Stephen Krulik and JesseA. Rudnick, published by Allyn and Bacon, Inc., Massachusetts, 1980.

[2] Problem SolvingTerminologies,http://www.mediafrontier.com/Article/PS/PS.htm
http://www.mediafrontier.com/Article/PS/PS.htmhttp://www.mediafrontier.com/Article/PS/PS.htm

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Problem Solving (continue)

Types of Problems3

Well-Defined Problems

Solved using standard methods, methods of similarproblems, or methods of analog problems

Examples: puzzles, simple games, low-level math,science, and engineering

ILL-Defined Problems Unexplored problem domains

Not clear what the problem is and what the solution is

Approximate solution

Wicked-Defined Problems

Worse than ill defined problem Contains contradictory requirements

Inventive/creative solutions

[3] Problem Solving, http://cs.wwc.edu/~aabyan/Design/probSolv.html
http://cs.wwc.edu/~aabyan/Design/probSolv.htmlhttp://cs.wwc.edu/~aabyan/Design/probSolv.html

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Collaborative, Team-Based

Problem Solving

4Today's industrial environments, problem solvinggenerally utilizes teams of people, from differentcountries, with different backgrounds andexpertise to bring to bear on problems that oftencross over formation, processing, manufacturing,

distribution and marketing.

4Not all technically correct answers are feasible incommercial practice.

4For example, a correct solution cannot beimplemented because it is contrary to themarketing strategy for the product or that thesolution may require greater capitol expenditurethan is economically feasible

[4] Technical Problems and Problem Solving,

http://class.fst.ohio-

state.edu/fst696/696%20Technical%20Problems%20and%20Problem%20solving.htm
http://class.fst.ohio-state.edu/fst696/696%20Technical%20Problems%20and%20Problem%20solving.htmhttp://class.fst.ohio-state.edu/fst696/696%20Technical%20Problems%20and%20Problem%20solving.htmhttp://class.fst.ohio-state.edu/fst696/696%20Technical%20Problems%20and%20Problem%20solving.htmhttp://class.fst.ohio-state.edu/fst696/696%20Technical%20Problems%20and%20Problem%20solving.htmhttp://class.fst.ohio-state.edu/fst696/696%20Technical%20Problems%20and%20Problem%20solving.htm

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Problem Solving with a Computer5

Define the problem

Formulate a mathematical model

Develop an algorithm

Write the code for the problem

Test program and verify the solution

Document the program and solution

[5] Problem Solving with a Computer,

http://www.aspire.cs.uah.edu/textbook/introcomp6004.html

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Problem Solving in this Course

Needs

Basic skills of mathematics, electrical and

electronics

Critical thinking MATLAB: Engineering and science

computing tool

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August 22, 2005Lecture 1 - By P. Lin

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Introduction to MATLAB

What is MATLAB? Short for MATrix LABoratory

Capable of solving any technical problems

A Special-purpose, interpreter-based, computer

program for technical computing and simulation,engineering and scientific computing, numericalcomputation and visualization without intensiveprogramming knowledge.

MATLAB computing environment

6The company Mathworks www.mathworks.com.

[6] The MathWorks, http://www.mathworks.com/

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August 22, 2005Lecture 1 - By P. Lin

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Introduction to MATLAB(continue)

The Advantage of MATLAB Ease of Use

Platform Independence

Predefined Functions

Device-Independent Plotting

Graphical User Interface

MATLAB Compiler

Disadvantages of MATLAB Interpreted languageslow

Cost

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The MATLAB Environment includes Graphical user interface

MATLAB desktop and Command Window

A command history

An editor and debugger, and

A Browser for viewing help, the workspace, files,

and the search path.

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MATLAB Desktopthe main interface for working

with MATLAB

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MATLAB Electrical Calculator:an Interactive Session

Start MATLAB

Example1: Enter the

following lines on the

MATLAB Command

Windows

>> watt = 100;

>> volt = 110;

>> i = watt/volt

i =

0.9091

Double Click the Command

in the Command History

Window

Workspace

Command

Window

Command

History

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MATLAB Electrical Calculator:an Interactive Session(continue)

Example 2: Calculate the area of acircle with a radius of 0.001 inch (r2).

>> pi

ans =3.1416

>> area = pi*0.001^2

area =

3.1416e-006

>>

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MATLAB: an Interactive Session

Example 3: Sum of 12 numbers withcontinue statement on successive lines bytyping an ellipsis () at the end of the firstline

>> x = 1 + 2+3+4+5+6+7+8+9+10+11+12x =

78

>> x = 1 + 2 + 3 + 4 + ...

5 + 6 + 7 + 8 + 9 + 10 + 11 + 12x =

78

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Summary

Problem Solving Problem Solving with a Computer

Introduction to MATLAB

A Sample MATLAB Session

Example 1: Calculate I = watt/volt

Example 2: Calculate the area of a circlewith a radius of 0.001 inch (r2).

Example 3: Sum of 12 numbers withcontinue statement on successive lines bytyping an ellipsis () at the end of the first

line Next: Math Problem Solving with MATLAB

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Question?

Answers

Email: [email protected]

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CPET190_Lect1