MATLAB Introduction. Ron Ilizarov Application Engineer

Transcription

1 MATLAB Introduction Ron Ilizarov Application Engineer 1

2 What is MATLAB? High-level language Interactive development environment Used for: Numerical computation Data analysis and visualization Algorithm development and programming Application development and deployment 2

3 Technical Computing Workflow Access Files Explore & Discover Data Analysis & Modeling Share Reporting and Documentation Software Algorithm Development Outputs for Design Code & Applications Hardware Application Development Deployment Automate 3

4 Accessing Data from MATLAB Access Explore & Discover Share Files Excel, text, or binary Audio and video, image Scientific formats and XML Applications and languages C/C++, Java, FORTRAN COM,.NET, shared libraries Databases (Database Toolbox) Measurement hardware Data acquisition boards, Image acquisition boards Stand-alone instruments and devices 4

5 Accessing Data from MATLAB Instrument Control Toolbox Serial devices, oscilloscopes, function generators, signal analyzers, etc. Data Acquisition Toolbox Data acquisition devices and PC sound cards Image Acquisition Toolbox Cameras and frame-grabbers MATLAB Interfaces for communicating with everything 5

6 Data Analysis and Visualization Access Explore & Discover Share Built-in engineering and 3D visualizations mathematical functions Interpolation, filtering, smoothing, Fourier analysis Extensive plotting capabilities 2D, 3D, and volume visualization Tools for creating custom plots 6

7 Expanding the Capabilities of MATLAB Access Explore & Discover Share MathWorks add-on tools for: Curve-fitting Math, statistics, and optimization Machine Learning and Deep Learning Image processing and computer vision Signal processing and communications Parallel computing Control system design and analysis and more Color-Based Image Segmentation 7

8 Sharing Results from MATLAB Access Explore & Discover Share Automatically generate reports Live Editor Publish MATLAB files Customize reports using MATLAB Report Generator Package as an app or a custom toolbox to share MATLAB programs with people that have MATLAB 8

9 MATLAB Application Deployment Access Explore & Discover Share Share MATLAB programs with people who do not have MATLAB Royalty-free distribution Encryption to protect your intellectual property Standalone Application MATLAB Compiler Excel Add-in Hadoop MATLAB C/C ++ MATLAB Compiler SDK Java.NET MATLAB Production Server Create both standalone applications and components for integration Deploy to desktop, web, and enterprise applications 9

10 External Interfaces Calling Libraries Written in Another Language From MATLAB Python C/C++ Fortran Java COM components and applications (Visual C#,.Net, VB.NET) Calling MATLAB from Another Language Java libraries Python libraries C/C++ or Fortran MEX-file functions C shared libraries.net libraries COM objects RESTful and WSDL web services 10

11 MATLAB Central Community for MATLAB and Simulink users Ask and Answer MATLAB Answers Get and Share Code File Exchange Link Exchange Read and Learn Blogs MATLAB Examples Play Cody 11

12 How to Use MATLAB? - Technical Overview MATLAB User Interface Working with variables Working with scripts Working with functions 12

13 MATLAB User Interface 13

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15 Variables in the Workspace NaN numeric data double precision 15

16 The Variable Editor 16

17 Plotting the Data Automatic code Examples 17

18 Plotting Multiple Columns >> plot(year,prices) Australia Canada France Germany Italy Japan Mexico South Korea UK USA

19 Plot Tools 19

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21 How to Use MATLAB MATLAB User Interface Working with variables Working with scripts Working with functions 21

22 MATLAB Commands 22

23 Using Built-In Functions and Constants 23

24 Creating Vectors Arbitrary data >> x = [2,3,5,7,11,13]; Equally-spaced values n subdivision points a dx b x >> x = a:dx:b; >> x = linspace(a,b,n); 24

25 Creating Matrices >> A = [1,2,3; 4,5,6; 7,8,9]; or >> A = [1 2 3; 4 5 6; 7 8 9] data entry mode

26 Concatenation >> A A = 1, 2, 3 4, 5, 6 7, 8, 9 >> C = [A,B] C = >> B B = 1, 0, 0 0, 1, 0 0, 0, 1 >> D = [A;B] D = [] 26

27 Array Operations 27

28 Array Operations 28

29 Array Operations 29

30 Matrix Mathematics 30

31 Mathematical Operations Performed on all elements of a vector sin a b c sin( a) sin( b) sin( c) The operation is vectorized sin sin sind sinh asin exp log log2 log10 sqrt nthroot abs angle floor ceil round mod 31

32 Mathematical Operations Performed on all elements of a matrix a sin c 1 3 b d sin( a) sin( c) The operation is vectorized 2 4 sin sin( b) sin( d) sin sind sinh asin exp log log2 log10 sqrt nthroot abs angle floor ceil round mod 32

33 Tables 34

34 Storing Data as a Table 36

35 How to Use MATLAB MATLAB User Interface Working with variables Working with scripts Working with functions 37

36 The MATLAB Editor edit 38

37 Script Files H1 line % CALLMODEL Models a blue whale B call. % % Uses a model of the form y = A.*y0 % where A = A0*exp(-B*t).*sin(2*pi*fm*t) % and y0 is a sum of harmonics % yn = sin(2*pi*n*f0*t) Help Code % Create the time base for the signal. fs = 4000; t = 0:(1/fs):1.5; % Set the fundamental frequency of the call. f0 = 175; Comments % Create the harmonics. y0 = sin(2*pi*f0*t) + sin(2*pi*2*f0*t) + sin(2*pi*3*f0*t); callmodel.m 39

38 Live Script SunriseSunset.mlx 40

39 How to Use MATLAB MATLAB User Interface Working with variables Working with scripts Flow Control and functions 41

40 Flow Control 42

41 Functions function [output_1, output_2] = function_name(input_1, input_2, input_3) 43

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44 Examining Values 46

45 Test Your knowledge 48

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49 MATLAB Onramp 52

50 TAH Campus License at a Glance Includes all faculty, researchers, and students Installation on campus-owned machines, as well as faculty-owned and studentowned personal computers Access at home and in the classroom, in lab and field research, and off-network provides the widest and up-to-date array of products, supporting everything from introductory level courses to advanced academic research MATLAB Grader automates and gamifies student programming assignments MATLAB Academic Online Training Suite is cost-effective training for all users MATLAB Online provides access from a web browser 53

51 MathWorks Product Overview Simulink Product Family Application-Specific Products Interface to hardwarehttps:// 54

52 Diverse Users 55

53 Thank You! 60