MATLAB codings to find laplace transform of some mathematical functions

Laplace Transform is widely used to convert time domain differential equation into frequency domain equations.This is the basic idea that you should be concerned with.Now let's get started with the codes:-

• Find the laplace transform of f(t)=t

>> syms s t;
>> ft= t;
>> laplace (ft)  {after this press enter}
output=1/s^2

• Find the laplace transform of t^2.

>> syms s t;
>> ft=t^2;
>> laplace (ft)
output= 2/s^3

• Find the laplace transform of e^-5t.

>> syms s t;
>> ft=exp(-5*t);
>> laplace (ft)
output=1/s+5

• Find the laplace transform of t^2.e^-5t

>> syms s t;
>> ft=(t^2)*[exp(-5*t)];
>> laplace (ft)
output= 1/(s+5)^3

• Find the laplace transform of sin5t.

>> syms s t;
>> ft=sin(5*t);
>> laplace (ft)
output=5/(s^2+25)

• Find the laplace transform of cos3t.

>> syms s t;
>>ft= cos(3*t);
>> laplace (ft)
output=s/(s^2+9)

• Find the laplace transform of e^-5t(sin3t).

>> syms s t;
>> ft=[exp(-5*t)]*sin(3*t);
>> laplace (ft)
output= 3/(s+5)^2+9

If you experience any problem using this codes,do write it in the comment box!!That's all for today.

Get Adsense approved for bloggers in FOUR easy steps!!!!!!!

First of all I would like you to know that there is no quick or  say instantaneous way to get adsense approved .I have seen in many websites claiming that you can get adsense approved in 24hrs.I urge you not to pay heed to this kind of bluff.What you need the most is patience,you have to be patient for atleast some time and follow the steps that I myself applied to get adsense approved in a short amount of time.

• CONTENT- First and foremost thing is your content .Your content must be of some value to the audience and also for the adsense officials who are going to give you approval.If you are confused about content you can do one thing search google for the burning topics and try to capitalise on that topic,this will not only increase your traffic to some extent but will give you a boost of confidence.See there is no easy way to earn in this  goddamn world unless you are willing to put in some effort.And by the way never use pornographic content,if you do that you will never get approval and don't ever use copyrighted content.

• POSTS- You should atleast maintain some quality posts (about 15 atleast)to get approval .I got approval when my total posts were 18.Your posts should contain words amounting to atleast 400-500 and add images that will add credibility to your posts.(p.s -Don't just copy paste images from google images because some of them may be copyright protected so what you can do is that go to the top right most wheel like icon(settings)-click on  it and select ADVANCED SEARCH-scroll down to user rights and select free to use and share option.  

• DESIGN- Most people tend to neglect this aspect,they think that if their blog looks fancy it will attract more visitors and will eventually be approved.This is where i got wrong.After much experimenting that is thorough searching on the net I realised that if you apply simple design (simple template)your blogs chances of getting approved is 90%.  You will be glad to know that I got approval after 10 attempts because I know that you  too are facing same problem that i did.So don't lose patience that's the key.You should add usefull widgets that your blogger platform will provide.

• TIME- This is also a factor,as I have told you that you can't expect your blog  to get approval within  24hrs.If  you have read GOOGLE's policy there is written that for Indian and Chinese users,their blog must be atleast 6 months old but i can't validate if this is true or not.But you should wait for atleast 2-3 months before submitting your request.In this time period what you can do is that you should try to grow your audience-Try sharing your posts to social networking platforms because this will help and you should  also submit your site to other search engines such as yahoo,bing etc as well.

If  you follow this steps you are bound to get approved.And remember my friends don't lose patience that's the key.This was my experience and if you want your experince to be shared just put your link in the comment box that's it.I hope this post's helps. 

How to take a screenshot in Win 7 and 8

STEP 1- This process is very simple and easy(p.s-No software required).To capture a screenshot just press (Prt sc) button in your key board.Nothing will show up,just go directly to paint and press the combination (Ctrl+V).Here's a screenshot of my Desktop window in paint

 After this simply save this file and choose your favourite Format.That's it

how to hide and unhide folders in windows 8

• STEP 1 Select the folder you want to hide.For e.g-New Folder and then right click on it .After that navigate to properties 
   
• STEP 2- After clicking on properties a new tab will open up and on there go directly to Attributes and check the Hidden option which was previously unchecked. 
  
  After that click on apply button followed by ok.
• STEP 3 Now to hide it you have to go to the control panel and there you have to click on appearance and personalisation.
   After clicking on the following option navigate to Folder options and there click on show hidden files and folders.A new tab will open up and there by default you will see that show hidden files and folders is checked ,you only have to uncheck it and check on Don't show.
   after this click on apply followed by ok .That's it now your file is completely hidden and no one will be able to see it.
• STEP 4 To unhide it simply go to control panel and follow the same process and check on Show hidden files and folders.(Same process should be followed on Windows 7 too)

How to record game Videos and capture Screen Shots

There are many softwares available in the net but out of 10 I would personally recommend you to use Dxtory.There are unreasonable restrictions on many that you have to buy,you have to register,even if you happen to be registered the softwares only allow you to record game videos for 10-15 mins.Here I will give you this software where you will be able to use it unlimited...........(p.s-Free of cost too)

• STEP 1 First Download the software.Here's the link( http://yourbittorrent.com/torrent/4464990/dxtory-2-0-122-a4-zip.html)
• STEP 2 Follow the onscreen instructions and install it.Insert the license file when prompted.
• STEP 3 Your Dxtory is now fully functional and ready
  
  to use.
• STEP 4 To capture screenshot click the keyboard icon and set your fab screenshot 
      
• STEP 4 Specify the folder to save the screenshots.Click the the folder icon and scroll down and select your folder for screenshots.
• STEP 5 For capturing movies and game videos ,you have to click the folder icon and there at the top you will find the option to to specify the folder to save videos.
• STEP 6 Minimize the Dxtory window and press F12 during game or movies to capture video.

But there is problem associated with this software which you will eventually find i.e the file size of captured videos can get terribly large which can TAKE UP THE WHOLE SPACE OF YOUR DRIVE.But there is a solution to it.

• STEP 7   DOWNLOAD AND INSTALL LAGARITH LOSSLESS VIDEO CODEC.Here's the link(http://lags.leetcode.net/codec.html).
• STEP 8 Exit Dxtory and again run it.Go to the Handycam icon and choose the above codec in Video codec 
  

That's it.Now you can can seamlessly record videos without worrying much about file size.If you face any problem hit me up!!!