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CPET 190

CPET 190. Lecture 1 Problem Solving with MATLAB http://www.etcs.ipfw.edu/~lin. Lecture 1: Introduction. Introduction – Objectives of the Course Course Syllabus and Class Objectives Problem Solving What is a Problem & Problem Solving Why Teach Problem Solving Types of Problems

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CPET 190

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  1. CPET 190 Lecture 1 Problem Solving with MATLAB http://www.etcs.ipfw.edu/~lin Lecture 1 - By P. Lin

  2. Lecture 1: Introduction • Introduction – Objectives 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 Lecture 1 - By P. Lin

  3. 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 a radius of 0.001 inch (π r2). • Example 3: Sum of 12 numbers with continue statement on successive lines by typing an ellipsis (…) at the end of the first line Lecture 1 - By P. Lin

  4. Syllabus • WebCT: http://webct.ipfw.edu/ • Web Site: http://www.etcs.ipfw.edu/~lin • Email: lin@ipfw.edu • Test Date • Grading Lecture 1 - By P. Lin

  5. Course Outcomes • Knowledge and skills of using MATLAB as a practical, technical problem solving tools (Criterion 2, Item a) • An ability to apply problem solving sills in mathematics and engineering technology problems (Criterion 2, Item b) • An ability to discuss ways and means of analyzing technical data (Criterion 2, Item c) • An ability to practice technical problem solving process including problem formulation, understand the problem, problem analysis, collect data, model development, algorithm development, solution implementation, solution verification, and report/presentation (Criterion 2, Items c, d, f, g) • Understanding of professional and ethical responsibility (Criterion 2, Item i, j) • Understanding of the contemporary engineering technology application issues (Criterion 2, Item k) Lecture 1 - By P. Lin

  6. 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, and install 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 Lecture 1 - By P. Lin

  7. 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, Engineering Technology, Data Analysis, etc • Problem Solving Projects: team-based, collaborative problem solving Lecture 1 - By P. Lin

  8. Problem Solving • Definition of Problem Solving • What is a Problem1,2 – A situation, quantitative or otherwise, that confronts an individual or group of individuals for a specific purpose that requires resolution, and for which the individual see no apparent or obvious means or path to obtaining the solution. • What is Problem Solving1,2 – A process in which one individual uses previously acquired knowledge, skills, and understanding to satisfy the demands of an unfamiliar situation. • Why Teach Problem Solving – stimulate students to practice critical thinking and prepares students to use math, physics, science, and discipline specific knowledge to solve real-world problems. [1] Problem Solving, A Handbook for Teacher, by Stephen Krulik and Jesse A. Rudnick, published by Allyn and Bacon, Inc., Massachusetts, 1980. [2] Problem Solving – Terminologies, http://www.mediafrontier.com/Article/PS/PS.htm Lecture 1 - By P. Lin

  9. Problem Solving (continue) • Types of Problems3 • Well-Defined Problems • Solved using standard methods, methods of similar problems, 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 Lecture 1 - By P. Lin

  10. Collaborative, Team-Based Problem Solving • 4Today's industrial environments, problem solving generally utilizes teams of people, from different countries, with different backgrounds and expertise to bring to bear on problems that often cross over formation, processing, manufacturing, distribution and marketing. • 4Not all technically correct answers are feasible in commercial practice. • 4For example, a correct solution cannot be implemented because it is contrary to the marketing strategy for the product or that the solution may require greater capitol expenditure than is economically feasible [4] Technical Problems and Problem Solving, http://class.fst.ohio-state.edu/fst696/696%20Technical%20Problems%20and%20Problem%20solving.htm Lecture 1 - By P. Lin

  11. 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 Lecture 1 - By P. Lin

  12. Problem Solving in this Course • Needs • Basic skills of mathematics, electrical and electronics • Critical thinking • MATLAB: Engineering and science computing tool Lecture 1 - By P. Lin

  13. 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, numerical computation and visualization without intensive programming knowledge. • MATLAB computing environment • 6The company Mathworks www.mathworks.com. [6] The MathWorks, http://www.mathworks.com/ Lecture 1 - By P. Lin

  14. 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 language – slow • Cost Lecture 1 - By P. Lin

  15. Introduction to MATLAB(continue) 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. Lecture 1 - By P. Lin

  16. Introduction to MATLAB(continue) • MATLAB Desktop – the main interface for working with MATLAB Lecture 1 - By P. Lin

  17. Workspace Command History Command Window 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 Lecture 1 - By P. Lin

  18. MATLAB Electrical Calculator:an Interactive Session(continue) • Example 2: Calculate the area of a circle with a radius of 0.001 inch (π r2). >> pi ans = 3.1416 >> area = pi*0.001^2 area = 3.1416e-006 >> Lecture 1 - By P. Lin

  19. MATLAB: an Interactive Session • Example 3: Sum of 12 numbers with continue statement on successive lines by typing an ellipsis (…) at the end of the first line >> x = 1 + 2+3+4+5+6+7+8+9+10+11+12 x = 78 >> x = 1 + 2 + 3 + 4 + ... 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 x = 78 Lecture 1 - By P. Lin

  20. 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 circle with a radius of 0.001 inch (π r2). • Example 3: Sum of 12 numbers with continue statement on successive lines by typing an ellipsis (…) at the end of the first line • Next: Math Problem Solving with MATLAB Lecture 1 - By P. Lin

  21. Question? Answers Email: lin@ipfw.edu Lecture 1 - By P. Lin

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