訊號與系統 廖文淵 德霖技術學院資訊工程系

Introduction to MATLAB

What is MATLAB? MATLAB is programming language and data visualization software package which is especially effective in signal processing and systems analysis URL: (The MathWorks, Inc.) Latest version : Release 13

MATLAB Desktop

Command Window

Current Directory Browser

Workspace Browser

Array Editor

Editor

MATLAB Variables

MATLAB Vectors

MATLAB Matrices

Example

Special Matrices

Math functions

Complex Number

Complex Number Operation

Matrix Operations

Flow Control Operations :For

Flow Control Operations : While

Flow Control Operations : If

M-Files and Mat-Files MATLAB m-files (*.m) are sequences of commands typed with an editor and saved in an m-file –As Script –As Function MATLAB mat-files (*.mat) are compressed binary files used to store numerical results

M-File As Script

M-File As Function

mat-files (*.mat)

Plotting Commands

Example of Plotting (1)

Example of Plotting (2)

Example of Plotting (3)

Example of Plotting (4)

Computer Exercises Plot