Here are some basic MATLAB functions: - Trigonometric functions like sin, cos, tan - Exponential functions like exp, log - Complex functions like abs, conj - Discrete math functions like factorial - Matrix functions like det help provides documentation on functions. Minimal MATLAB 13  Computing with MATLAB Basic Operations Assignment Operator = Relational Operators == ~= < <= > >= Logical Operators & | ~ && || Elementwise Operators .^ .\ ./ .' .' Special Operators : ; ' () {} []

1. Do you speak MATLAB!

2. MATLAB ®
R2012a (7.14)
MathWorks®

3. MATLAB
Is an integrated technical computing
environment that combines numeric computation, advanced
graphics and visualization, and a high-level programming language.
The MathWorks, Inc.
High-level language of technical computing
Development environment for engineers, scientists
Interactive tools for design, problem solving
Mathematical function libraries
Graphics and data visualization tools
Custom GUIs
External Interfaces: C, C++, Fortran, Java, COM, Excel, .NET
Introducing MATLAB – Language of technical computing 2

4. MATLAB product family
MATLAB
MATLAB Programming
Language
User-written Functions
Built-in Functions
Graphics Computations External Interfaces
2D Graphics Linear Algebra C
3D Graphics Data Analysis C++
Color & Lighting Polynomials JAVA
Animation Interpolations .net
Image, Audio & Video Solutions of ODE Micorosoft Excel
Toolboxes: Collections of specialized Functions
Parallel Computing Parallel Computing Toolbox Toolbox
Parallel Computing Spreadsheet Link EX (for Microsoft Excel)
Symbolic Math Toolbox
MATLAB Compiler Computational Finance
Financial Optimization Computational Finance
Toolbox
Math, Statistics, and OptimizationDistributed Toolbox Toolbox Bioinformatics Toolbox
Math, Data Acquisition Computing Server
Statistics, and Optimization
MATLAB MATLAB Builder NE (for Equation Toolbox
Partial System Toolbox Econometrics Global Optimization Toolbox Biology
Fixed-Income Toolbox Computational
InstrumentControlDifferential Microsoft .NETRobustFixed-Point Toolbox and Verification
Framework)
Image Processing Toolbox Datafeed Toolbox Toolbox
Signal
Control Toolbox Control
MATLAB Coder SimBiology Generation
Code
Control System Design and Analysis StatisticsMATLAB Builder JA (for Java language) Network Toolbox
Financial Derivatives Toolbox
Toolbox
System Identification System Coder Neural
Image Acquisition ToolboxVision ToolboxToolbox RF ToolboxControl Toolbox
Model Predictive Application Deployment
Computer Toolbox HDLDatabase Toolbox
DSP System
Signal Processing and Communications Curve Fitting Toolbox EX Toolbox
Database (for Aerospace Toolbox Calibration Toolbox
Model-Based
MATLAB Builder HDL Microsoft Excel) Array System
OPC VisionFuzzy Logic Toolbox ToolboxVerifier Database Connectivity and Reporting
Image Processing and Computer Toolbox Image AcquisitionSystem Toolbox Database ConnectivityToolbox
Communications Phased and Reporting
Test and Measurement
Test and Measurement Wavelet Toolbox Generator
MATLAB Report
Vehicle Network Spreadsheet Link EX (for Microsoft Excel)
ToolboxFilter Design HDL Coder
Mapping Toolbox
Introducing MATLAB – Language of technical computing 3

5. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
4

6. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
5

7. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
6

8. MATLAB - Desktop
CurrentWindow
Editor Directory
Command Window
Command History
Workspace
All commandsall youron edit, create, and save your own scriptfar along within files type
The is where you characterizedthe current directory are listed. programs there called
typed files from that you have command prompt
This main windowwrite, variablesby the MATLABcommand window get recorded, even
subwindow lists all MATLAB prompt in the generated so or (>>)
m-files.
across multiple session in this window.
and size.
Minimal MATLAB 7

9. MATLAB - Desktop
Help Window
The main window characterized by the MATLAB command prompt (>>)
Minimal MATLAB 8

10. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
9

11. Computing with MATLAB
Basic Data and Variables
Variable
Value Size Class
Minimal MATLAB 10

12. Computing with MATLAB
Basic Data and Variables
Multidimensional Array
Scalar
[full or sparse]
function
logical char numeric cell struct handle (@)
 ab { }
int8, uint8, single double
int16, unit16,
int32, unit32,
int64, unit64
Minimal MATLAB 11

13. Computing with MATLAB
Arithmetic Operator &
Their Precedence
Operations Operators Examples
Addition
Subtraction
Multiplication
Right Division
Left Division
Exponentiation
Precedence Order Operators
1 Parentheses ( ). For nested parentheses, the innermost
are executed first.
2 Exponentiation, ^
3 Multiplication, *; Division, /,
4 Addition, +; Subtraction, -
help precedence
Minimal MATLAB 12

14. Computing with MATLAB
Mathematical Functions
Trigonometry
Radian Degree
Basic Hyperbolic Inverse Basic
sin sinh asin sind
cos cosh acos cosd
tan tanh atan tand
cot coth acot cotd
sec sech asec secd
csc csch acsc cscd
Exponential Complex Discrete Math Matrix
exp abs factorial det
log conj gcd trace
log10 imag lcm rank
log2 real primes inv
sqrt angle expm
sqrtm
help <type function name>
Minimal MATLAB 13

15. Computing with MATLAB
Predefined Variables and
Keywords
Predefined Variables
ans
pi
eps
inf
i,j
NaN
Keywords
break case catch classdef continue else elseif
end for function global if otherwise parfor
persistent return spmd switch try while
help <Predefined Variable Name>
iskeyword
Minimal MATLAB 14

16. Computing with MATLAB
Managing Variables
Command Outcome
clear Clears the workspace, all variables are removed from the memory
clear x y z Clears only variables x, y, and z
clear all Clears all variables and functions from workspace
who Lists variables currently in the workspace
whos Lists variables currently in the workspace with their sizes together
with information about their bytes and class
Minimal MATLAB 15

17. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
16

18. Array
Overview
5
7
5 5 7 4 4
Scalar of 1 X 1 Row Vector of 1 X 3 Column vector of 3 X 1
5 14 12 10 56 5 14 12 10 56
5 10 56 6 10 504 4 6 5 14 12 10 56 6
6 4 6 5 10 56 85 23 89 0 5 10 56 85 23 89 0
7 78 86 6 4 6 23 2 6 4 6 23 2 0
7 78 86 53 6 7 78 86 53 6
One Dimensional
Matrix of 3 X 3
Two Dimensional Three Dimensional
Matrix of 3 X 5 Matrix of 3 X 5
Minimal MATLAB 17

19. Array
Creation
 from a known list of numbers
 with constant spacing by specifying the first term, the spacing, and the
last term
Known lists of numbers
One Dimensional Array
variable_name = [ type vector elements ]
Two Dimensional Array
variable_name = [1st row elements; 2nd row elements; 3rd row
elements; ... ; last row elements]
Minimal MATLAB 18

20. Array
Creation
Constant spacing : (colon operator)
Creating a vector with constant spacing by specifying the m = first term
first term, the spacing, and the last term: q = spacing
n = last term
variable_name = [m:q:n]
or
variable_name = m:q:n
Constant spacing linspace
Creating a vector with linear (equal) spacing by specifying xi = first element
the first and last terms, and the number of terms: xf = Last element
variable_name = linspace(xi, xf, n) n = number of elements
Minimal MATLAB 19

21. Array
Array Operators
Operations Operation
+ Addition
- Subtraction
.* Element-by-element multiplication
./ Element-by-element division
. Element-by-element left division
.^ Element-by-element power
‘ Transpose
Minimal MATLAB 20

22. Array
Data Manipulation
Addressing - Extraction (Subset)
Addressing an element(s) individually or in subgroups:
 To redefine only some of the elements,
 When specific elements are to be used in calculations,
 When a subgroup of the elements is used to define a new variable.
Minimal MATLAB 21

23. Array
Data Manipulation
Address vector
>> ve = [35 46 78 23 5 14 81 3 55]
ve =
35 46 78 23 5 14 81 3 55
1 2 3 4 5 6 7 8 9 position or index of element
Minimal MATLAB 22

24. Array
Data Manipulation
Address matrix )
(1,1) (1,2) (1,3) (1,4)
3 11 6 5
3 11 6 5
(2,1) (2,2) (2,3) (2,4)
MAT MAT
= = 4 7 10 2
4 13 79 0 10 8 2
(3,1) (3,2) (3,3) (3,4)
13 9 0 8
Minimal MATLAB 23

25. Array
Data Manipulation
Addressing vector : (colon operator)
Addressing matrix : (colon operator)
A(:,n) Refers to the elements in all the rows of column n of the matrix A.
A(n,:) Refers to the elements in all the columns of row n of the matrix A.
A(:,m:n) Refers to the elements in all the rows between columns m and n
of the matrix A.
Refers to the elements in all the columns between rows m and n
A(m:n,:)
of the matrix A.
Refers to the elements in rows m through n and columns p
A(m:n,p:q)
through q of the matrix A.
Minimal MATLAB 24

26. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
25

27. Plotting
Creation
Example
Damped Oscillation equation:
Minimal MATLAB 26

28. Plotting
Creation
Example
Damped Oscillation equation:
1- a = 0.1; b = 1;
2- t = 0:0.1:20;
3- y = exp(-a*t).*cos(b*t);
4- plot(t,y)
5- grid on;
6- xlabel('Time in second');
7- ylabel('Response in mm');
8- title('Damped Oscillation');
9- legend('a = 0.1,b = 1)');
Minimal MATLAB 27

29. Plotting
Creation
Overview
title
legend
ylabel xlabel
Minimal MATLAB 28

30. Plotting
Graphing
Plot function plot(x,y)
where the variables x and y are vector and must be of same size i.e the number of
elements should be equal.
x=[1 2 3 5 7 7.5 8 10];
y=[2 6.5 7 7 5.5 4 6 8];
plot(x,y)
Minimal MATLAB 29

31. Plotting
Graphing
Plot function
plot(x,y,‘line specifiers’,‘PropertyName’,PropertyValue)
Line specifiers
Line specifiers are optional and can be used to define the style and color of the
line and the type of markers (if markers are desired).
Line Style Specifier
solid (default) -
dashed --
dotted :
dash-dot -.
Line color Specifier Line color Specifier
red r magenta m
green g yellow y
blue b black k
cyan c white w
Minimal MATLAB 30

32. Plotting
Graphing
Plot function
plot(x,y,‘line specifiers’,‘PropertyName’,PropertyValue)
Line specifiers
Line specifiers are optional and can be used to define the style and color of the
line and the type of markers (if markers are desired).
Marker type Specifier Marker type Specifier
plus sign square s
circle diamond d
asterisk five pointed star p
point six pointed star h
cross triangle (pointed left) <
triangle (pointed up) triangle (pointed right) >
triangle (pointed down)
Minimal MATLAB 31

33. Plotting
Graphing
Plot function
plot(x,y,‘line specifiers’,‘PropertyName’,PropertyValue)
Property Name
To specify the thickness of the line, the size of the marker, and the colors of the marker’s
edge line and fill
Minimal MATLAB 32

34. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
33

35. Script
Creation
Overview
Script Sequence of MATLAB statements in file
A script file is an external file that contains a sequence of MATLAB statements. Script
files have a filename extension of .m.
Minimal MATLAB 34

36. Script
Basics
Creating script file
Saving script file
Executing script file
Accepting input from user
variable_name = input(‘prompt message’)
Displaying output to user
disp(name of a variable)
disp(‘text as string’)
Minimal MATLAB 35

37. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
36

38. Script
Creation
Conditional Statement
Conditional expression consisting of relational and/or logical operators.
Relational Operators Logical Operators
Operations Operators Operations Operators
Less than And
Greater than Or
Less than or equal to Not
Greater than or equal to
Equal to
Not Equal to
Minimal MATLAB 37

39. Script
Creation
Example
g1
Plot g2
g3
1- t = linspace(-5,10);
2- g1 = -4 - 2*t; g1
g2 = -4 + 3*t; g2
3-
g3 = 16 - 2*t; g3
4- g = g1.*(-2<t & t<=0)...
5- + g2.*(0<t & t<=4)...
6- + g3.*(4<t & t<=8);
7- plot(t,g)
Minimal MATLAB 38

40. Script
if/elseif/else Statement
if expression
False if
statements
statement
elseif expression
statements
else
True statements
end
Statement Statement
Group 2 Group 1
End
Minimal MATLAB 39

41. Script
Creation
Switch Statement
Flowchart
switch switch_expression
case case_expression
statements
True match False case case_expression
case, k statements
:
otherwise
statements
case case False end
statement, k end
True
Minimal MATLAB 40

42. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
41

43. Script
Loop control statements
for (Iterative Loop)
for index = start:increment:end
statements
end
while (Conditional Loop)
while expression
statements
end
continue, break
Minimal MATLAB 42

44. Agenda
Introducing MATLAB – Language of technical computing
Minimal MATLAB
MATLAB Desktop
Computing with MATLAB
Array – creation & working
Plotting – creating & visualizing
Automating commands – creating, saving & executing script file
Conditional control statements
Loop control statements
Functions – creating & executing a function file
43

45. Function
Creation
Overview
Set of inputs Set of outputs
1 SYSTEM 1
2 [Mathematical model of 2
3 3
Physical Phenomenon]
m (function file) n
[Input variables] [System] [Output variables]
current, voltage, Electrical Networks current, voltage,
power, energy, Communication System power, energy,
temperature, Control System temperature,
data Thermodynamic System Processed data
Computer system, etc
function [out1, out2, ...] = func_name(in1, in2, ...)
declares the function func_name, and its inputs and outputs
Minimal MATLAB 44

46. Function
Creation
Example
X Black Box Y
1- function H = lp(R,C)
2- w = logspace(-2,6);
H = 1./sqrt(1 + (w*R*C).^2);
3-
semilogx(w,H)
4- xlabel('Angular frquency, w (rad/s)');
5- ylabel('System Response');
6- title('Low-Pass frequency response');
Source: MATLAB An Introduction with Applications, Amos Gilat, 4e
Minimal MATLAB 45

47. Function
Creation
Example
Minimal MATLAB 46

48. Function
Creation
Example
Black Box
Source: MATLAB An Introduction with Applications, Amos Gilat, 4e
Minimal MATLAB 47

49. Function
Creation
Example
1- function [Td, RH] = DewptRhum(T,Tw,BP)
2- es = 6.112*exp((17.67*T)/(T + 243.5));
ew = 6.112*exp((17.67*Tw)/(Tw + 243.5));
3- e = ew - BP*(T - Tw)*0.00066*(1 + 0.00115*Tw);
4- RH = 100*(e/es);
5- Td = (243.5*log(e/6.112))/(17.67 - log(e/6.112));
Minimal MATLAB 48

50. BEFORE
LEAVING

51. More on MATLAB
1. MATLAB Tutorials
2. Demo and Webinars
3. Documentations
4. MATLAB Central (User Community)
www.mathworks.com

52. Reference
1. Getting started with MATLAB, A quick introduction for scientists and engineers,
Rudra Pratap, Indian edition
2. MATLAB An Introduction with Applications, Amos Gilat, 4e
3. Matlab - A Practical Introduction to Programming and Problem Solving, Stormy
Attaway, 2e
4. Essential MATLAB for Engineers and Scientists, Brian D. Hahn & Daniel T.
Valentine
5. A Guide to MATLAB for Beginners and Experienced Users, Hunt Lipsman &
Rosenberg

53. THANKS We speak MATLAB!
ASHISH MESHRAM
meetashish85@gmail.com
www.facebook.com/ashishmeet