Contributors (Author(s), Editor(s), Translator(s), Illustrator(s) etc.)

Jaydeep Chakravorty obtained his BE in electrical and electronics engineering from Sikkim Manipal Institute of Technology, Majitar, Sikkim, and his ME in software engineering from Birla Institute of Technology, Mesra, Ranchi. He is currently an associate professor and the head of the Department of Electrical Engineering at Baddi University of Emerging Science and Technology, Solan, Himachal Pradesh. Prior to that, he was a faculty member at the University of Petroleum and Energy Studies, Dehradun. His areas of interests are electrical circuits and networks, power systems, fuzzy logic, neural networks, genetic algorithms and soft computing techniques. He has published papers in several journals and has presented papers in various national and international conferences.

Table of Content

PART-I

1 STARTING MATLAB
1.1 Introduction
1.2 MATLAB version
1.3 Starting MATLAB
1.3.1 Command window
1.3.1.1 Use of Semicolon and Comma
1.3.2 Command History Window
1.3.3 Workspace Window
1.3.4 Current Directory Window
1.4 MATLAB variables
1.5 Special Variables
1.6 Arithmetic Operators in MATLAB
1.7 Order of Precedence of MATLAB Operators
1.8 Formatting Commands in MATLAB
1.9 Advantages of MATLAB
1.10 Disadvantages of MATLAB
1.11 Summary
Exercises

2    COMMON INBUILD MATLAB FUNCTIONS
2.1 Introduction
2.2 Commonly Used MATLAB Math Functions
2.3 Commonly Used MATLAB Trigonometric Functions
2.4 Commonly Used MATLAB Rounding Functions
2.5 Coordinate Functions in MATLAB
2.6 Specifier in MATLAB
2.7 MATLAB Functions for Characters and Strings
2.8 Keywords in MATLAB
2.9 Summary
Exercises   

3  WRITING PROGRAM IN M-FILE
3.1 Introduction
3.2 Opening an M-file
3.3 Writing Program in M-file
3.4 Saving the program written in M-file
3.5 Executing the program written in MATLAB
3.6 Making the MATLAB Program More Interactive
3.7 Use of ‘input()’, ‘disp()’ and ‘fprint()’ Commands
3.8 Summary
Exercises    

4  CREATING AN ARRAY IN MATLAB
4.1 Introduction
4.2 Creating one dimensional array
4.3 Accessing elements of the array
4.4 Accessing a block of element in the array
4.5   Array construction with constant spacing
4.6 Two dimensional array
4.7 The zeros, ones and eye commands
4.8 Array manipulation
4.9   Built in function for array handling
4.10 Some other operations with array
4.11 Summary
Exercises    

5 ARRAY MATHEMATICS
5.1. Introduction
5.2 Scalar and array operation
5.2.1   Addition operation
5.2.2   Subtraction operation
5.2.3   Multiplication operation
5.2.4   Right division operation
5.2.5   Left division operation
5.2.6   .^ operation
5.3 Array and array operation
5.3.1 Addition operation
5.3.2 Subtraction operation
5.3.3 Multiplication operation
5.3.4 Division operation
5.3.4.1  Left division operation
5.3.4.2   Right division operation
5.4 Element by element operation of array in MATLAB
5.4.1 Element by element multiplication operation
5.4.2 Element by element right division operation
5.4.3 Element by element left division operation
5.4.4 Element by element exponentiation operation
5.5    Some other commonly used MATLAB array functions
5.6  Some special matrices
5.7 Application of MATLAB in solving circuit problems
5.8 Summary
Exercises    

6   TWO-DIMENSIONAL PLOT
6.1 Introduction
6.2   Plot Command
6.3 Optional Commands in Plot Command
6.4     HOLD ON and HOLD OFF Command
6.5 colordef command
6.6    Grid command
6.7   label command
6.8  Title command
6.9  Text command
6.10  gtext command
6.11    Formatting the Text on the Graph
6.12   Legend Command
6.13    fplot command
6.14    ezplot command
6.15   Axis command
6.16    Subplot Command
6.17      Other Two Dimensional Plots
6.18    Special Graphs
6.18.1    Pie Chart
6.18.2    Pareto Chart
6.18.3    Bar chart
6.18.4    Horizontal Bar chart
6.18.5    Stairs Plot
6.18.6    Stem Plot
6.18.7    Histogram Plot
6.18.8    Polar Plot
6.18.9   Compass plot and feather plot
6.18.10   Rose  Plot
6.19   Summary
Exercises    

7  THREE-DIMENSIONAL PLOT
7.1 Introduction
7.2 Three dimensional line plot
7.3 Three dimensional mesh and surface plot
7.4 Contour plot
7.5 Meshc plot
7.6 Meshz plot
7.7 Surfc plot
7.8 Surfl plot
7.9 Waterfall plot
7.10  Contour3 plot
7.11 Ribbon plot
7.12 Sphere plot
7.13 Cylinder plot
7.14 Bar3 plot
7.15 Pie3 plot
7.16 Stem3 plot
7.17 Summary
Execise

8   RELATIONAL AND LOGICAL OPERATORS
8.1 Introduction
8.2 Relational operators in MATLAB
8.2.1 Greater than operator
8.2.2 Less than operator
8.2.3 Greater than equal to operator
8.2.4 Less than equal to operator
8.2.5    Equal to operator
8.2.6    Not equal to operator
8.3 Logical operators in MATLAB
8.3.1  AND operator
8.3.2  OR operator
8.3.3  NOT operator
8.3.4  XOR Operation
8.3.5  ALL Operator
8.3.6  ANY operator
8.3.7 FIND Operator
8.4 Summary
Exercises    

9 CONDITIONAL STATEMENTS
9.1 Introduction
9.2 Control Flow Statements in MATLAB
9.2.1 for loop
9.2.1.1     Nested for loop
9.2.1.2     Properties of for loop
9.2.2    while loop
9.2.2.1     Properties of while loop
9.2.3   if-else-end structure
9.2.3.1     Nested if-else-end structure
9.2.4   Switch-case structure
9.3  try-catch statement
9.4  lasterr
9.5 end statement
9.6 Break and continue command
9.7 Summary
Exercises    

10   FUNCTIONS
10.1 Introduction
10.2   Format of MATLAB function
10.3 Rules for writing function files
10.4 How to call a user defined function
10.5 Properties of function files
10.6 Concept of local and global variables
10.7    Persistent memory
10.8    Function inside a function
10.9    Inline function
10.10 Summary

 11   POLYNOMIALS
11.1 Introduction
11.2 Representation of a polynomial in MATLAB
11.3  Polynomial functions
11.3.1 Roots command
11.3.2 Poly command
11.3.3 polyval function
11.3.4 polyvalm function
11.3.5 Addition and subtraction of polynomials
11.3.6 Multiplication of polynomials
11.3.7 Division of polynomials
11.3.8 Polynomial derivative
11.3.9  Residue function
11.4 Summary
Exercises     

12 INTERPOLATION AND CURVE FITTING
12.1 Introduction
12.2  Interpolation functions
12.2.1 Interp1 function
12.2.2 Interp2 function
12.2.3 Interpft function
12.2.4 spline function
12.2.5 griddata function
12.3  Curve Fitting
12.3.1 polyfit function
12.4   Summary
Exercises    

 13 NUMERICAL ANALYSIS
13.1 Introduction
13.2    MATLAB functions
13.2.1    fzero function
13.2.2    fminbnd function
13.2.3    quad function
13.2.4    quadl function
13.2.5 quadv function
13.2.6 trapz function
13.2.7 cumtrapz function
13.3   Ordinary Differential Equations (ODE)
13.3.1     ODE functions in MATLAB
13.4   Summary
Exercises    

14  GRAPHICAL USER INTERFACES (GUI) IN MATLAB
14.1 Introduction
14.2 Creating a new GUI
14.3 Creating GUI having only one input from the user
14.4 Creating GUI having multiple inputs from the user
14.5 Other GUI templates
14.5.1 GUI with Uicontrols
14.5.2 GUI with axes and menu
14.6 Summary
Exercises    

PART-II

15 CONTROL SYSTEM TOOLBOX
15.1 Introduction
15.2 System representation
15.3   Representation of control system models in MATLAB
15.3.1 Transfer function model
15.3.2 State space model
15.3.3 Pole zero gain model
15.4      Conversion from one model to another
15.5      Adding time delay in the system
15.5.1 Discrete system
15.5.2 Linear system
15.6    Interconnection of linear models
15.7    Feedback connection in MATLAB
15.8      Obtaining transfer function from block diagram
15.9    Time domain and frequency response
15.9.1 Step response
15.9.2 Impulse response
15.9.3 Bode plot
15.9.4  Root locus plot
15.9.5  Nyquist plot
15.9.6  Polar plot
15.10 GUI for analyzing LTI system
15.10.1 Importing control system model into the GUI
15.10.2 Exporting control system model
15.11 Summary
Exercises    

16 SYMBOLIC MATH TOOLBOX
16.1 Introduction
16.2    Why to use this toolbox?
16.3   findsym command
16.4   subs command
16.5   Creating symbolic functions
16.6     Performing calculus operations
16.6.1     Differentiation
16.6.1.1     Partial differentiation
16.6.2    Integration
16.6.3    Limits
16.6.4    Summation
16.6.5    Taylor series
16.6.5.1 Taylortool GUI
16.7    Simplification of mathematical expression
16.7.1 Collect command
16.7.2 Expand command
16.7.3 Horner command
16.7.4 Factor command
16.7.5  Simplify command
16.8    Equation solving
16.9 Solving simultaneous equations
16.10 Solving single differential equation
16.11 Other mathematical functions
16.12 MuPAD
16.12.1 Writing expressions in MuPAD
16.12.2 Difference between MATLAB expression and MuPAD expression
16.12    Summary
Exercises    

17  FUZZY LOGIC TOOLBOX
17.1 Introduction
17.2 A Simple Example of to Demonstrate the use of Fuzzy Logic
17.3 Fuzzy Logic Toolbox
17.3.1 Membership Function Editor
17.3.2 Rule Editor
17.3.3 Rule Viewer
17.3.4 Surface Viewer
17.4 Summary
Exercises    

18 NEURAL NETWORK TOOLBOX
18.1 Introduction
18.2 Structure of neuron
18.3 Transfer functions
18.3.1 Hard limit transfer function
18.3.2 Linear transfer function
18.3.3 Log sigmoid transfer function
18.3.4 Positive linear transfer function
18.3.5 Triangular basis transfer function
18.3.6 Tan sigmoid transfer function
18.3.7 Radial basis transfer function
18.3.8 Satlin transfer function
18.3.9 Satlins transfer function
18.4 Representation of neurons
18.4.1 Representation of one layer networks
18.4.2 Representation of multi layer networks
18.5 Simulating networks in MATLAB
18.5.1 Simulation of static networks
18.5.2 Simulation of networks with delay
18.6 Perceptron
18.7 Simulation using neural network GUI
18.8 ADALINE
18.9 Linear system design
18.10 Backpropagation
18.10.1  Creating a feed forward networks
18.10.2 Method to initialize weights
18.10.3 Training of network
18.11 Self organizing networks
18.12 Self organizing maps
18.13  Summary
Exercises    

 19  SIGNAL PROCESSING TOOLBOX
19.1 Introduction
19.2 Waveform functions in MATLAB
19.3 Filters
19.3.1 Characterization of digital filters
19.3.2 Filter coefficients and filter names
19.3.3 filtic command
19.3.4 Other functions of signal processing toolbox
19.4 Filter design
19.4.1 Butterworth filter design
19.4.2 Bessel filter design
19.4.3 Chebyshev type – I digital and analog filter design
19.4.4 Chebyshev type – I digital and analog filter design
19.4.5 Elleptic or Cauer digital filter design
19.5 Design of filter using filter builder GUI
19.6 Design of filter using fdatool
19.7 Summary
Exercises    

20   COMMUNICATION TOOLBOX
20.1 Introduction
20.2 Block diagram of communication system
20.3 Generation of random integer signal
20.3.1 wgn command
20.3.2 randsrc command
20.3.3 randint command
20.3.4 randerr command
20.4 Bit error and symbolic error rate
20.4.1 biterr command
20.4.2 symerr command
20.5 Modulation and Demodulation
20.5.1 Modulation and Demodulation using modem object
20.6 Communication channels
20.7 Bit error rate analysis tool (BERTool)
20.7.1 Theoretical method of generating BER data
20.7.2 Semianalytic method of generating BER data
20.8 Simulink model
20.9 Integrating BERTool and Simulink
20.10 Creating MATLAB function for use with BERTool
Exercises    

PART-III
21   INTRODUCTION TO SIMULINK
21.1 Introduction
21.2 Starting Simulink
21.3 A simple example
21.4 Solving differential Equation in Simulink
21.5 Digital electronics in Simulink
21.6 To model DC motor in Simulink
Exercises    

22   SIMPOWERSYSTEM MODEL
22.1 Introduction
22.2 SimPowerSystems Library
22.3 Building Circuits using Powerlib Library
22.4 Simulating Transients
22.5 Simulation of power system model
Exercises    

23   SOME APPLICATION PROBLEMS

Appendix A: List of some of the most common MATLAB commands
Appendix B  Solutions to odd problems of Chapter 23
Index