Branch Counselors Message
It gives me immense pleasure to see the April Issue of IEEE
Student Branch Newsletter, Swasti being released. I would like to
inform the students and faculty members that the Technical
Symposium, Zeta 05 organized by IEEE Student Branch, VIT, in
association with Association of Electrical Engineers, got covered
in the IEEE Madras Section Newsletter (Issue March). The IEEE
Student Branch, VIT also got appreciation from the IEEE Madras
Section, in the Madras Section Newsletter (Issue March) for its
release of the IEEE Student Branch, VIT website www.vit.ac.in/ieee
and online newsletter, Swasti. I look forward to more students and
faculty members becoming IEEE Member in the coming future. Please
send your feedback/suggestions to [email protected] .
R. Saravana Kumar Branch Counselor IEEE Student Branch Vellore
Institute of Technology
Chairmans Message
It is heartening to see the April Issue of IEEE Student Branch,
VIT Newsletter, SWASTI being released on 16th April 05. Swasti
gives an opportunity to students and faculty of Vellore Institute
of Technology (Deemed University) to pen down their technical
knowledge as Technical Articles, Technical Abstracts and Technical
Quizzes, thus giving them a chance to share their knowledge with
other students and faculty all over the world. Swasti, being an
online newsletter, is easily accessible to anyone, anywhere in the
world. The best technical article chosen from each issue of Swasti,
will be forwarded to be published in the Madras Section Newsletter,
Mas-Link, which covers the IEEE Student Branch of colleges all over
Tamil Nadu. I would like to mention that the number of members of
IEEE Student Branch, VIT have nearly tripled in the past six
months. As of now, 61 people are a part of this Esteemed Technical
Society. I look forward to more students and faculty joining IEEE
to become a part of the Esteemed IEEE FRATERNITY Please send your
feedback/suggestions to [email protected] .
Aditya Zutshi III ECE Chairman & Editor IEEE Student Branch
Vellore Institute of Technology
From Editors Desk
Welcome to the April Issue of IEEE Student Branch, VIT
Newsletter, Swasti. We would like to thank the students and faculty
members for appreciating the efforts made by IEEE Student Branch,
VIT in bringing out the first online newsletter, Swasti and for
giving a positive feedback for the same. It is heartening to see
Students and Faculty Members coming forward for submitting their
Technical Articles for the Newsletter. We hope of having more
students and faculty members contributing Technical
Articles/Technical Paper Abstracts/Technical Projects
Abstract/Technical Quizzes for the newsletter in the coming future.
Please mail your contributions for the forthcoming issues to
[email protected] / [email protected] . Let The Saga Of
IEEE Continue Editors: Aditya Zutshi III ECE Kashyap Reddy I
CSE
Latest News The Executive Committee of the IEEE Student Branch,
VIT for the Session 2005-2006 was Nominated. The new committee took
effect from 1st April 2005.The committee is as follows : Branch
Counselor Mr. R. Saravana Kumar Senior Lecturer, EEE Department
Chairman Mr. Aditya Zutshi III ECE Vice Chairman Mr. Rahul Pratyush
Mohanty II EIE Secretary Mr. Anupam Singh II CSE Treasurer Miss.
Aditi Sharma II IT Web Administrator Mr. Kashyap Reddy I CSE Public
Relations Officer Mr. Abhinav Bisen I EIE Editors Mr. Aditya Zutshi
III ECE Mr. Kashyap Reddy I CSE
Technical Article 1 Introduction To Matlab
MATLAB, developed by Math Works Inc., is a software package for
high performance numerical computation and visualization. MATLAB
provides an interactive environment with hundreds of reliable and
accurate built-in mathematical functions. These functions provide
solutions to a broad range of mathematical problems including
matrix algebra, complex arithmetic, linear systems, differential
equations, signal processing, optimization, nonlinear systems, and
many other types of scientific computations. The most important
feature of MATLAB is its programming capability, which is very easy
to learn and to use, and which allows userdeveloped functions. It
also allows access to FORTRAN algorithms and C codes by means of
external interfaces. There are several optional toolboxes written
for special applications such as signal processing, control systems
design, system identification, statistics, neural networks, fuzzy
logic, symbolic computations, and others. MATLAB supports almost
every computational platform. MATLAB for WINDOWS is started by
clicking on the MATLAB icon. The Command window is launched, and
after some messages such as intro, demo, help help, info, and
others, the prompt >> is displayed. The program is in an
interactive command mode. Typing who or whos displays a list of
variable names currently in memory. Also, the dir command lists all
the files on the default directory. MATLAB has an on-line help
facility, and its use is highly recommended. The command help
provides a list of files, built-in functions and operators for
which on-line help is available. The Command help function name
will give information on the specified
function as to its purpose and use. The command help will give
information as to how to use the on-line help. MATLAB has a
demonstration program that shows many of its features. The Command
demo brings up a menu of the available demonstrations... A program
can be written and saved in ASCII format with a filename having
extension .m in the directory where MATLAB runs. To run the
program, click on the Command window and type the filename without
the .m extension at the MATLAB command. You can view the text Edit
window simultaneously with the Command window. Basic Array
Operations a = [ 1 2; 3 4 ]; a(1,:) % Gets first row a(:,1) % Gets
first column a(1,1) % Gets first element 2*a a * a % Matrix
multiplication in the math sense a .* a % Element-by-element Matrix
multiplication >> ... , % ; : prompt continue statement on
next line separate statements & data start comment which ends
at end of line
suppress output and used also as row separator in matrix specify
range
Plotting with MATLAB MATLAB will plot one vector vs. another.
The first one will be treated as the abscissa (or x) vector and the
second as the ordinate (or y) vector. The vectors have to be the
same length. MATLAB will also plot a vector vs. its own index. The
index will be treated as the abscissa vector. There are commands in
MATLAB to "annotate" a plot to put on axis labels, titles, and
legends. For example: >> % To put a label on the axes:
>> xlabel ('X-axis label') >> ylabel ('Y-axis label')
>> % To put a title on the plot: >> title ('Title of my
plot') Vectors may be extracted from matrices. Normally, we wish to
plot one column vs. another. If we have a matrix mydata with two
columns, we can obtain the columns as a vectors with the
assignments as follows: >> first_vector = mydata ( : , 1) ;
>> % and we can plot the data: % First column
>> second_vector = mydata ( : , 2) ; % Second one >>
plot ( first_vector , second_vector )
Matlab Programs Programs in Matlab are: Scripts, or Functions
Scripts: Matlab statements that are fed from a file into the
Command Window and executed immediately Functions: Program modules
that are passed data (arguments) and return a result (i.e., sin(x))
These are created in any text editor (but Matlab supplies a nice
built-in editor) Getting Data into a Script There are three basic
ways to get data into a script: Create variables in Co mmand window
before running your script and then use them in your script
directly Use the INPUT() function to let the user enter data from a
prompt Open a file and read data into variables Matlab Function
Format function fout = mfilename( arg list ) Statements Function
output must be set equal to fout. mfilename is the name of the
mfile where function is saved.
R.Saravana Kumar Senior Lecturer EEE Department Vellore
Institute of Technology
Technical Article 2 ATM Software Working Principle &
Programming Code In Visual Basic Principle: We have already used
ATM machines till now. The working of the ATM machine really amuses
us, especially the software in it. It has the capability of
checking our pins, analyzing the transactions and finally
delivering the money and the receipt with the balance amount and
the withdrawing amount. Before we see into the programming code,
let us see the general algorithm of how ATM software works.
Algorithm: STEP 1: Open the introductory screen on the machine if
the magnetic drive is detected and matched from the card holder
STEP 2: Prompt user to enter the pin. STEP 3: If the user enters a
wrong pin, notify him the same and ask him to enter the correct pin
again. If the pin is entered wrongly three times, end the program
and block the transactions STEP 4: If the user enters the correct
pin in less than three attempts, take him to a fresh screen. STEP
5: In the fresh screen, show the balance amount, and ask the user
to enter the amount he wants to withdraw. STEP 6: Process the
transactions if and only if the user enters the amount less than
$2000 and see to that the withdrawing amount is less than the
balance amount. STEP 7: If the withdrawing amount is greater than
the balance, notify the same and end the program.
STEP 8: As long as user enters the valid amount process the
transactions. STEP 9: If the user presses exit button, stop the
program. The Visual Basic Codes For more details, run ATM.exe or
open Project1.vbp Under form1 In the design mode, form 1 consists
of a text box with name text1 and two buttons,command1 and command
2. Dim shyam As Integer Private Sub command1_click() If Text1.Text
= 1111 Then Form1.Hide Form2.Show Else MsgBox "wrong pin.try again"
shyam = shyam + 1 If shyam = 3 Then MsgBox "YOU HAVE PRESSED THE
WRONG PIN THREE TIMES.SORRY YOUR TRANSACTIONS ARE BLOCKED!" End End
If End If End Sub Private Sub Command2_Click() MsgBox "THANK YOU
VISIT AGAIN" End End Sub Under form 2 in the design mode,form 2
consists of 4 text boxes,text1,text2,text3,text4,and two command
buttons, command1 and command 2
Dim total As Integer Dim draw As Integer Dim remain As Integer
Public Sub command1_click() If Text2.Text 2000 Then MsgBox "AMOUNT
SHOULD BE LESS THAN $2000" End If End Sub Private Sub
Command2_Click() End End Sub for more details, run ATM.exe or open
Project1.vbp There is a more user friendly version in C. ATM
programming C is useful because most of the hacking softwares
cannot find the key sequence typed. In VB, the user is highly
venerable. So the code in C is given below
C Code for the software (built in Turbo C compiler): //hey the
ultimate ATM program is here #include #include void main() { char
shyam[6],choice,yn; int i,count=0,wdraw; int balance=30000; dam:
clrscr(); printf("============================================
===================================="); printf("\nATM Process
emulator.....the working process behind the ATM software IEEE @
VIT"); printf("\n===========================================
====================================="); printf("enter pin:-(pin
for this trail version is 321123):-"); for(i=0;ibalance) {
printf("\nhow can you have more money than in your balance");
getch(); goto shyam; } if(wdraw1000) { printf("\nsorry as per
guidelines..... per transaction restrictions prevent you from doing
this"); getch(); goto shyam; } if(wdraw>=100 &&
wdraw
