This document provides information about the Simulation Laboratory course offered at SRI RAMAKRISHNA ENGINEERING COLLEGE. It lists the course outcomes, experiments, and provides details about MATLAB and its features. The key aspects covered are using MATLAB for numerical computation, modeling and simulation. It describes MATLAB's interactive environment, programming language, toolboxes and applications in areas like signal processing and control systems.

1. 1
SRI RAMAKRISHNA ENGINEERING COLLEGE
[Educational Service: SNR Sons Charitable Trust]
[Autonomous Institution, Accredited by NAAC with ‘A’ Grade]
[Approved by AICTE and Permanently Affiliated to Anna University, Chennai]
[ISO 9001:2015 Certified and all eligible programmes Accredited by NBA]
Vattamalaipalayam, N.G.G.O. Colony Post, Coimbatore – 641 022.
Course Instructors:
Dr. M.EZHILARASI, AP/EEE
No. of Credits: 3
Department of Electrical and Electronics Engineering
20EI271 – SIMULATION LABORATORY

2. Course Outcomes
On successful completion of the course, students will
be able to
• CO1 : Outline the features of mathematical functions
using computational software.
• CO2: Develop a code utilizing basic commands and
functions of simulation software to solve mathematical
problems.
• CO3: Analyze the variables within/import into workspace
of software through plots and display devices.
• CO4 :Analyze the results and analysis of the experiments
through reports.

3. LIST OF EXPERIMENTS
1. Components of computational software and
tool boxes
2. Mathematical operations using arrays and
matrices.
3. Create and manipulate the variables for text and
numeric data types.

4. LIST OF EXPERIMENTS
4. Import and Export data as text files,
spreadsheets, other file formats and web
access.
5. Write basic programs using loops and
conditional statements, such as if, for,
and while.
6. Create variables within /import into Workspace
of software from data files or other programs.

5. LIST OF EXPERIMENTS
6. Solving Mathematical Functions using
simulation.
7. Write basic Programs in Scripts containing
sequence of commands and functions.
8. Create 2D,3D plots and display it in graphical
window

6. LIST OF EXPERIMENTS
10.Program to Read, Display and plot Image using
open CV Library
11.Conversion of original image to Gray scale
image and binary image.
12.Solving Matrices and Vectors problems using
SCILAB.

7. MATLAB
• an abbreviation of "matrix laboratory”
• MATLAB (an abbreviation of "matrix laboratory")
is a proprietary multi-paradigm
programming language and numerical
computing environment developed by
MathWorks.

8. What Is MATLAB?
• MATLAB is a high-performance language for
technical computing.
• It integrates computation, visualization, and
programming in an easy-to-use environment
• where problems and solutions are expressed in
familiar mathematical notation.

9. Typical uses include:
• Math and computation
• Algorithm development
• Modeling, simulation, and prototyping
• Data analysis, exploration, and visualization
• Scientific and engineering graphics
• Application development, including Graphical
User Interface building

10. MATLAB
• MATLAB is an interactive system whose basic
data element is an array that does not require
dimensioning.
• This allows you to solve many technical
computing problems, especially those with
matrix and vector formulations, in a fraction of
the time it would take to write a program in a
scalar non interactive language such as C or
Fortran.

11. The MATLAB System
• The MATLAB system consists of five main parts:
• The MATLAB language
• The MATLAB working environment
• Handle Graphics.
• The MATLAB mathematical function library
• The MATLAB Application Program Interface
(API)

12. The MATLAB language
• This is a high-level matrix/array language with
control flow statements, functions, data
structures, input/output, and object-oriented
programming features.

13. The MATLAB working environment
• This is the set of tools and facilities that you work
with as the MATLAB user or programmer. It
includes facilities for managing the variables in
your workspace and importing and exporting
data.
• It also includes tools for developing, managing,
debugging, and profiling M-files, MATLAB's
applications.

14. Handle Graphics
• This is the MATLAB graphics system. It includes
high-level commands for two-dimensional and
three-dimensional data visualization, image
processing, animation, and presentation
graphics.
• It also includes low-level commands that allow
you to fully customize the appearance of
graphics as well as to build complete Graphical
User Interfaces on your MATLAB applications

15. Graphs

16. The MATLAB mathematical function library
• This is a vast collection of computational
algorithms ranging from elementary functions
like,
• sum, sine, cosine, and complex arithmetic, to
more sophisticated functions like,
• matrix inverse, matrix eigenvalues, Bessel
functions, and fast Fourier transforms.

17. The MATLAB Application Program Interface
(API)
• This is a library that allows you to write C and
Fortran programs that interact with MATLAB.
• It include facilities for calling routines from
MATLAB (dynamic linking), calling MATLAB as a
computational engine, and for reading and
writing MAT-files.

18. Applications
• Signal Processing and Communications
• Image and Video Processing
• Control Systems
• Test and Measurement
• Computational Finance
• Computational Biology

19. Local Environment Setup
• Setting up MATLAB environment is a matter of
few clicks. The installer can be downloaded.
• MathWorks provides the licensed product, a trial
version and a student version as well. You need
to log into the site and wait a little for their
approval.
• After downloading the installer the software can
be installed through few clicks.

20. …contd

22. Understanding the MATLAB Environment
• MATLAB development IDE can be launched from
the icon created on the desktop.
• The main working window in MATLAB is called
the desktop. When MATLAB is started, the
desktop appears in its default layout

23. …contd

24. • The desktop has the following panels −
• Current Folder − This panel allows you to access
the project folders and files.

25. • Command Window − This is the main area
where commands can be entered at the
command line. It is indicated by the command
prompt (>>).

26. • Workspace − The workspace shows all the
variables created and/or imported from files.

27. • Command History − This panel shows or return
commands that are entered at the command
line.

28. Use of Semicolon (;) in MATLAB
• Semicolon (;) indicates end of statement.
However, if you want to suppress and hide the
MATLAB output for an expression, add a
semicolon after the expression.
• For example,
• x = 3; y = x + 5
• When you click the Execute button, or type
Ctrl+E, MATLAB executes it immediately and the
result returned is −
• y = 8

29. Adding Comments
• The percent symbol (%) is used for indicating a
comment line. For example,
• x = 9 % assign the value 9 to x
• You can also write a block of comments using the
block comment operators % { and % }.

30. Commonly used Operators and Special
Characters
• + Plus; addition operator.
• - Minus; subtraction operator.
• * Scalar and matrix multiplication operator.
• .* Array multiplication operator.
• ^ Scalar and matrix exponentiation operator.
• .^ Array exponentiation operator.
• Left-division operator.

31. ..contd
• / Right-division operator.
• . Array left-division operator.
• ./ Array right-division operator.
• : Colon; generates regularly spaced elements
and represents an entire row or column.
• ( ) Parentheses; encloses function arguments
and array indices; overrides precedence.

32. • [ ] Brackets; enclosures array elements.
• . Decimal point.
• … Ellipsis; line-continuation operator
• , Comma; separates statements and elements
in a row
• ; Semicolon; separates columns and
suppresses display.
• % Percent sign; designates a comment and
specifies formatting.

33. • _Quote sign and transpose
• ._Nonconjugated transpose
• =Assignment operator.

34. Special Variables and Constants
• ans - Most recent answer.
• eps - Accuracy of floating-point precision.
• i,j -The imaginary unit √-1.
• Inf - Infinity.
• NaN - Undefined numerical result (not a
number).
• pi -The number π

35. Case -Sensitive
•MATLAB is case-sensitive.

36. ….contd
• Variable names can be of any length, however,
MATLAB uses only first N characters,
• where N is given by the unction namelengthmax.

37. Saving Your Work
• The save command is used for saving all the
variables in the workspace, as a file with .mat
extension, in the current directory.

38. Commands
• clc Clears command window.
• clear Removes variables from memory.
• exist Checks for existence of file or variable.
• global Declares variables to be global.
• help Searches for a help topic.
• lookfor Searches help entries for a keyword.
• quit Stops MATLAB.
• who Lists current variables.
• whos Lists current variables (long display).

39. Input and Output Commands
• disp Displays contents of an array or string.
• fscanf Read formatted data from a file.
• format Controls screen-display format.
• fprintf Performs formatted writes to screen or
file.
• input Displays prompts and waits for input.
• ; Suppresses screen printing.

40. • %s Format as a string.
• %d Format as an integer.
• %f Format as a floating point value.
• %e Format as a floating point value in scientific
notation.
• %g Format in the most compact form: %f or %e.
• n Insert a new line in the output string.
• t Insert a tab in the output string.

41. • The format function has the following forms used
for numeric display −
• format short Four decimal digits (default).
• format long 16 decimal digits.
• format short eFive digits plus exponent.
• format long e 16 digits plus exponents.
• format bank Two decimal digits.
• format + Positive, negative, or zero.
• format rat Rational approximation.

42. Vector, Matrix and Array Commands
• cat Concatenates arrays.
• find Finds indices of nonzero elements.
• length Computes number of elements.
• linspace Creates regularly spaced vector.
• logspaceCreates logarithmically spaced vector.
• max Returns largest element.

43. …contd
• min Returns smallest element.
• prod Product of each column.
• reshape Changes size.
• size Computes array size.
• sort Sorts each column.
• sum Sums each column.
• eye Creates an identity matrix.

44. ….contd
• ones Creates an array of ones.
• zeros Creates an array of zeros.
• cross Computes matrix cross products.
• dotComputes matrix dot products.
• detComputes determinant of an array.
• inv Computes inverse of a matrix.

45. • pinv Computes pseudoinverse of a matrix.
• rank Computes rank of a matrix.
• rref Computes reduced row echelon form.
• cellCreates cell array.
• celldisp Displays cell array.

46. • cellplot Displays graphical representation of cell
array.
• num2cell Converts numeric array to cell
array.
• deal Matches input and output lists.
• iscell Identifies cell array.

47. Plotting Commands
• axis Sets axis limits.
• fplot Intelligent plotting of functions.
• grid Displays gridlines.
• plot Generates xy plot.
• print Prints plot or saves plot to a file.
• title Puts text at top of plot.
• xlabel Adds text label to x-axis.
• ylabel Adds text label to y-axis.

48. The M Files
• MATLAB allows writing two kinds of program files
• Scripts − script files are program files with .m
extension.
• In these files, you write series of commands,
which you want to execute together. Scripts do
not accept inputs and do not return any outputs.
They operate on data in the workspace.

49. • Functions − functions files are also program files
with .m extension. Functions can accept inputs
and return outputs. Internal variables are local to
the function.

50. THANK YOU