Tech N Science: October 2012

Thursday, 25 October 2012

Windows 8 Launched

After a long waiting finally today Microsoft is launching their most popular product OPERATING SYSTEM

New features added in Facebook

Today new messaging features is added in Facebook. As a No.1 social network they made a fantastic feature in their messaging and chat style.

Image Fetch - ASP.NET

here the code below(.aspx)

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

List Box - ASP.NET Toolbox

here the code below(.aspx)

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

Radio Button with page load event - ASP.NET Toolbox

here the code below(.aspx)

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

implicitly coding defined dropdown image control - ASP.NET

here the code below(.aspx)

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

explicitly user defined dropdown image control - ASP.NET

here the code below(.aspx)

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

protected void Page_Load(object sender, EventArgs e)
{
}

Basic Calculator - ASP.NET

Here the code below

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

Linear Convolution Assotiative Law (Prove) in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all
clc
x=input('enter the x(n) signal : ');
h1=input('enter the h1(n) signal : ');
h2=input('enter the h2(n) signal : ');
s1=input('starting value of x(n) : ');
s2=input('starting value of h1(n) : ');
s4=input('starting value of h2(n) : ');
l1=length(x);
l2=length(h1);
l3=l1+l2-1;
l4=length(h2);
l5=l3+l4-1;
s3=s1+s2;
s5=s3+s4;

Linear Convolution Commutative Law (Prove) in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all
clc
x=input('enter the x(n) signal : ');
h=input('enter the h(n) signal : ');
s1=input('starting value of x(n) : ');
s2=input('starting value of h1(n) : ');
l1=length(x);
l2=length(h);
l3=l1+l2-1;
s3=s1+s2;

Linear Convolution in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all;
clc;
x=input('enter the sequence h(n) : ');
h=input('enter the sequence x(n) : ');
s1=input('enter the starting interval of x(n) : ');
s2=input('enter the starting interval of h(n) : ');
l1=length(x);
l2=length(h);
l3=l1+l2-1;
s3=s1+s2;
n1=s1:1:s1+l1-1;
n2=s2:1:s2+l2-1;
n3=s3:1:s3+l3-1;

Circular Convolution in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all;
clc;
x=input('enter the sequence x(n) : ');
h=input('enter the sequence h(n) : ');
l_x=length(x);
l_h=length(h);
l=max(l_x,l_h);
x=[x,zeros(1,l-l_x)];
h=[h,zeros(1,l-l_h)];
l1=length(x);
m1=length(h);
j=0;

Z Transform in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all;
clc;
syms z;
x=input('enter the sequence x(n) : ');

Linear vs Circular Convolution in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all;
clc;
x=input('enter the sequence h(n) : ');
h=input('enter the sequence x(n) : ');
%starting of circular convolution
l_x=length(x);
l_h=length(h);
l3=l_x+l_h-1;
n1=0:1:l_x-1;
n2=0:1:l_h-1;
n3=0:1:l3-1;
y=conv(x,h);
figure(1)

Circular Convolution (Overlap Add Without Function) in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.
This will work for upto two sequence of signal.

clear all;
clc;
x=input('Enter the sequence x(n) : ');
h=input('Enter the sequence h(n) : ');
m=length(h);
n=2^m;
l=n-m+1;
x1=[x(1:l),zeros(1,m-1)];
x2=[x((l+1):(2*l)),zeros(1,m-1)];

Circular Convolution (Overlap Save Without Function) in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.
This will work for upto two sequence of signal.

clear all;
clc;
x=input('Enter the sequence x(n) : ');
h=input('Enter the sequence h(n) : ');
m=length(h);
n=2^m;
l=n-m+1;
x1=[zeros(1,m-1),x(1:l)];
x2=x((l-(m-1)+1):(l-(m-1)+n));
hf=[h,zeros(1,n-m)];

DFT in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all;

clc;

x=input('Enter the sequence x(n) : ');

N=input('\nEnter the value of no. of points N : ');

L=length(x);

if(N>=L)

x=[x zeros(1,N-L)];

elseif(N<L)

error('Length of sequence must be less than no. of points.\n');

end

Linear Convolution Using Cricular Convolution Method in MATLAB

Just create a two new file with extension .m and paste the code below in that .m file. Then Run it.

for circonv.m

function y = circonv(x,h)
l1=length(x);
%m1=length(h);
j=0;
for s=1:1:l1
    g(s)=0;
    j=j+1;
    for i=1:l1
        if j<1
            j=l1;
        end
        g(s)=g(s)+x(i)*h(j);

IDFT in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clc;

clear all;

x=input('Enter the sequence X(k) : ');

N=input('\nEnter the value of no. of points N : ');

L=length(x);

if(N>=L)

x=[x zeros(1,N-L)];

elseif(N<L)

Z Transform Shifting Property in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all;

clc;

syms z;

x=input('enter the sequence x(n) : ');

s=input('enter the starting interval of x(n) : ');

a=input('enter the value of Shifting Factor(+ve for Delayed)(-ve for Advanced) : ');

l=length(x);

LHS=0;

%starting of LHS

for n=(s+a):1:(l+s+a-1)

LHS=LHS+x(n-s-a+1)*z^(-n);

Window Functions in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all;

clc;

%starting of hamming

wc=.5*pi;

N=input('Enter the number of points : ');

subplot(6,1,1)

plot(hamming(N));grid;

ylabel('<-Magnitude->');

xlabel('<--Time-->');

b=fir1(N,wc/pi,hamming(N+1));

Twiddle Factor in MATLAB

Just create a new file with extension .m and paste the code below in that .m file. Then Run it.

clear all;

clc;

N=input('enter the no. of points : ');

W=exp((-j*2*pi)/N);

K=2;

%VERIFICATION OF SYMETRY PROPERTY

deleting a row/data from a table in JAVA

import java.sql.*;
import java.util.*;
class delete
{
    public static void main(String[] argv)
    {
        try
        {
            Scanner sc=new Scanner(System.in);
            String roll;


            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            String database="jdbc:odbc:eceDSN";
            Connection con=DriverManager.getConnection(database,"","");
  System.out.println("DATABASE OF ECE is Connected");
            System.out.println("Enter The Roll No");

            roll=sc.nextLine();
            PreparedStatement ps=con.prepareStatement("delete from ECE where roll=?");
            ps.setString(1,roll);

            //create a statement object
            //Statement st=con.createStatement();
            //Execute the statement
            int result=ps.executeUpdate();
            if(result==1)
            {
                System.out.println("Record is Deleted Successfully");
            }
            con.close();
        }
        catch(Exception err)
        {
            System.out.println(err.getMessage());
        }
    //loading all the driver to the memory

    }
}

updating a table's data in JAVA

import java.sql.*;
import java.util.*;
class update
{
    public static void main(String[] argv)
    {
        try
        {
            Scanner sc=new Scanner(System.in);
            int a, result, tot,phno;
            String dob, roll;

            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

insertion program of data in JAVA

class insert
{
    public static void main(String[] argv)
    {
        try
        {
            Scanner sc=new Scanner(System.in);
            String name,roll,dob;
            int tot;


            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

creating of a table in JAVA

import java.sql.*;
import java.util.*;
class Student
{

    public static void main(String[] argv)
    {
        try
        {
            Scanner sc=new Scanner(System.in);
            String roll,name,dob;
             int tot,phno;

Queue Reader Program

/* * queue_reader.c - a program that reads messages with a given identifier * off of a message queue. */
#include <stdio.h>        /* standard I/O functions. */
#include <stdlib.h>       /* malloc(), free() etc. */
#include <unistd.h>        /* sleep(), etc. */
#include <sys/types.h>    /* various type definitions. */
#include <sys/ipc.h>      /* general SysV IPC structures */
#include <sys/msg.h>      /* message queue functions and structs.*/

Queue Sender Program

/* * queue_sender.c - a program that reads messages with one of 3 identifiers * to a message queue. */
#include <stdio.h> /* standard I/O functions. */
#include <stdlib.h> /* malloc(), free() etc. */
#include <sys/types.h> /* various type definitions. */
#include <sys/ipc.h> /* general SysV IPC structures */
#include <sys/msg.h> /* message queue functions and structs. */

Thursday, 25 October 2012

Windows 8 Launched

Wednesday, 24 October 2012

New features added in Facebook

Sunday, 21 October 2012

Image Fetch - ASP.NET

List Box - ASP.NET Toolbox

Radio Button with page load event - ASP.NET Toolbox

implicitly coding defined dropdown image control - ASP.NET

explicitly user defined dropdown image control - ASP.NET

Basic Calculator - ASP.NET

Linear Convolution Assotiative Law (Prove) in MATLAB

Linear Convolution Commutative Law (Prove) in MATLAB

Linear Convolution in MATLAB

Circular Convolution in MATLAB

Z Transform in MATLAB

Linear vs Circular Convolution in MATLAB

Circular Convolution (Overlap Add Without Function) in MATLAB

Circular Convolution (Overlap Save Without Function) in MATLAB

DFT in MATLAB

Linear Convolution Using Cricular Convolution Method in MATLAB

IDFT in MATLAB

Z Transform Shifting Property in MATLAB

Window Functions in MATLAB

Twiddle Factor in MATLAB

deleting a row/data from a table in JAVA

updating a table's data in JAVA

insertion program of data in JAVA

creating of a table in JAVA

Queue Reader Program

Queue Sender Program