This presentation mainly focuses on how MATLAB can be very handy for Electrical Engineering Students.

1. MATLAB and it’s application in
Electrical Engineering
Name : Manish Joshi
ID No. 45132
Branch : Electrical Engineering

2. Brief Introduction
• First use by practitioners of Control Engineering.
• MATLAB is a high-level technical computing language and interactive environment
for algorithm development, data visualization, data analysis, and numeric
computation. Using the MATLAB we can solve computing problems faster than
with traditional programming languages, such as C, C++, and Fortran.
• We can use MATLAB in a wide range of applications, including signal and image
processing, communications, control design, test and measurement, financial
modeling and analysis ,computational biology and parallel computing.
• You can perform operations from the command line, as a sophisticated calculator.

4.  If you think “ Iam an electrical engineer. Why should I learn
MATLAB?”.
Best Reason I can give you is “It can get you a job even without
knowing nothing about Electrical Engineering”
Recently Apple made MATLAB as a necessity in their recruitment
process.

5. Applications
 As a Calculator
 Mathematical Functions
 Manipulating Matrices
 Wide Range of support for Micro-Controllers
 Machine Learning : Making softwares to learn from themselves
 Any task can be done at a faster rate than any other tool. ( remember time is
crucial)
 Data Analysis
 Calculus and Differential Equations
 Adding two arrays together needs only one command, instead of a for or while loop.

6. Toolboxes
 Contol System: Design and analyze feedback control systems
 Image processing
 Machine Learning and Artificial Intelligence
 Signal Processing : Analog and digital signal processing tools
 Simulink : Modelling and analyzing Circuits
 Plotting 2D and 3D curves/Planes.
 Embedded Coder
 Portability to C, C++, Python, Java and Visual Basic
And this list goes beyond our imagination…

7. Matlab as a Calculator
 Largest integer that can be represented is of range 10200.
 Easy to deal with Complex Numbers
 You can record time taken to do any operation using tic and toc functions.
 Support for thousands of Inbuilt functions like factorial() and plot(). So a user
need not worry how it is done.
 You can find 10200 in seconds. It contains 200 digits. It will takes minutes to write
200 digits in paper.
 Finding Laplace and inverse Laplace.
 Coefficients of Fourier Seires, Taylor (or) any other series.

8. Basic Uses
Plotting curves
Matrix operations

9. Some Mathematical Functions : :
 Rank()
 Sum()
 Conj(2+3i)
 Sqrt(2.65)
 Inv(M)
 Clc
 Clear
 Exist()
 Isprime()
 pwd

10. Making Functions
 A functions is a piece of Code specialized to a specific task. For example
𝑒 𝑥 𝑎𝑛𝑑 sin 𝑥 You can also make your Own functions. An example function can be one
that computes value of current given Voltage and Resistance.

11. Plot Features
 Torque – Slip Characterstics and VI characterstics can be analysed easily.
 Plot functionalities like : grid can be used to find the value of Voltage for I =
0.00000001 accurately.
 Mulitple graphs can be plotted and analysed together.
 Don’t understand anything?? ( A huge support and offline help manual by
Mathworks and online community can help you do anything. )

12. Solving equations
 Having problem solving 12𝑥15615
− 21𝑥4522
+ 𝑥454
+ 2𝑥122
− 9 = 0 Matlab can
solve this for you in about micro seconds.
 Want to integrate a function like : 𝑒−𝑖𝜔𝑡
𝑡=0
5616
cot−1
sin 𝑡 𝑑𝑡 Matlab can do it.
 Solving differential equations of order-100 is a cakewalk.
 Finding a solution to a system of n linear equations is a task of micro seconds.
 Having something much difficult to do, matlab can do it for you.

13. Image Processing
 Perform image analysis by extracting meaningful information from images, such as
finding shapes, counting objects, identifying colors, or measuring object properties.
 Increase the signal-to-noise ratio and accentuate image features by modifying the
colors or intensities of an image.
 Use functions and apps to acquire, visualize, analyze, and process images in
many data types.
 Prepare images for display or printing
 Compress images for communication across a network
You can do nearly everthing, you can think of with images. Don’t agree?

14.  Morphing is a special effect in motion pictures and animations that changes
(or morphs) one image or shape into another through a seamless transition.
Most often it is used to depict one person turning into another through
technological means or as part of a fantasy or surreal sequence.

15. Image/Pattern Recognition
 Matlab can be used to recognize patterns in images and patterns in stars
and draw conclusions accordingly.
 It can make you tools like image recognizition by analyzing patterns and
granting access if pattern matches.
 Artificial Intelligence also uses patterns, images and audio/videos so that a
software and tool / device can learn it’s own by observing patterns.

16. Automation
 Interested in Making a Machine that automatically detects if current exceeds a
certain limit.
 Interested in Making a Machine that detects humidity in surrounding air (or) Soil
and functions according to it.
 Matlab can be used as a language for Arduino( Uses C) and Raspberry Pi (Uses
Python). Two Most Widely used MicroController.
 It requires additional Hardware( sensors, Blue-tooth or Wireless modules) along
with functionalities provided with MATLAB.

17. Simulink
 Simulink is a graphical programming environment for modeling, simulating and
analyzing multidomain dynamic systems. ( We only consider electrical circuits
here)

18.  Make Circuit Diagram Using Drag and Drop Environment

20. Circuit Characterstics can be found using
Simulink

21. Contol System
6 line of code can find plots of
Amplitude with w(omega) in second

22. How long would it take to do it using pen and paper??

23.  A small piece of code can find
Plots in Contol system in
Seconds.

24. Digital Singal Processing
 You can use Signal Processing Toolbox to analyze and compare signals in time,
frequency, and time-frequency domains, identify patterns and trends, extract
features, and develop and validate custom algorithms to gain insight into your
data.
Signal Information

25. Some other Applications
 It provides tools for building applications with custom graphical interfaces. You can
build your own Calculator, Use and Even Sell to some Company.
 Object Oriented Programming Using MATLAB
 You can make Games in MATLAB. GUIs seem to be somehow limited compared to
other languages. But if someone has done, means It can be done.
Tetris Game
Using Matlab

26. Industry Use
 Matlab does have a bunch of functionality and built in tools. For this reason, it is used in many industries.
Some examples include large aerospace and defense companies. These companies use Matlab and
Simulink to prototype, test, and iterate control systems. Many major car manufacturers also use Matlab to
develop control and fuel consumption systems.
 Another industry that heavily uses Matlab is robotics. With the built in functionality and growing hardware
support from Mathworks, making robots do advanced things using Matlab has become easier than ever.
 Additionally, some financial companies use Matlab to model risk or optimize portfolio risk. Matlab even has a
Financial toolbox to help make this sort of analysis even easier. More than just these examples, any
company or researcher that has use for data analysis and presentation will benefit from using Matlab. For
instance, Apple frequently references Matlab in their recruiting announcements.

27. Why not use??
 The only reason that I think for not using MATLAB is High Pricing Rates and Due to
their Strict Copyright Rules, that can lead to imprisonment if found using fake copies
of MATLAB.
 Although many alternatives like OCTAVE are present, but nothing beats MATLAB.
 Matlab does scientific computing very well, but many other languages can take on a
variety of tasks including web development
 Using Matlab can use a larger amount of RAM than a compiled program. For most
applications, a typical computer will be fine. However, processing larger images,
videos, or data sets may eat up a larger amount of memory.

28. Conclusion
 MATLAB is a high-level numerical computatioin environment
and it’s use for educational and industrial purposes can do
tasks at a faster rate than any other tool or any other way of
computation and it’s further capability of modelling and
analysing Circuits adds it as a favourable tool for all engineers
especially for an electrical engineer.