Courtesy of Thomas F. Weiss. Used with permission. MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Electrical Engineering puter Science Signals and Systems — INTRODUCTION TO MATLAB — Fall 1999 Thomas F. Weiss Last modification September 9, 1999 1 Contents 1 Introduction 3 2 Getting Started 3 3 Getting Help from Within MATLAB 4 4 MATLAB Variables — Scalars, Vectors, and Matrices 4 number operations . . . ........................ 4 Generating vectors . . . ............................. 5 Accessing vector elements ............................ 5 5 Matrix Operations 5 Arithmetic matrix operations . . ........................ 6 Relational operations . . ............................. 6 Flow control operations . ............................. 7 Math functions . ................................. 7 6 MATLAB Files 7 M-Files . ..................................... 8 Scripts . . ................................. 8 Functions ................................. 8 Mat-Files ..................................... 9 Postscript Files . ................................. 9 Diary Files ..................................... 10 7 Plotting 10 Simple mands ............................ 11 Customization of plots . ............................. 11 8 Signals and mands 11 Polynomials . . . ................................. 11 Laplace and Z Transforms ............................ 12 Frequency responses . . ............................. 13 Fourier transforms and filtering . ........................ 13 9 Examples of Usage 13 Find pole-zero diagram, bode diagram, step response from system function . 13 Simple solution . ............................. 14 Customized solution . . . ........................ 14 Locus of roots of a polynomial . . ........................ 16 Response of an LTI system to an input . .............
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