Saturday, July 21, 2012

Scilab: Better application for Numerical computing

There are too many softwares which are useful for numerical calculation but most of them are not free. They have high price and most of the student from developing country can not afford them. But don't worry. There are some useful tools which will provide you a better platform to learn numerical computing. Here I'm talking about a Scilab. Scilab is open source software so you can use it freely. 
There is an article about Scilab in Wikipedia.  In this article Scilab is introduced as 
Scilab is an open source, cross-platform numerical computational package and a high-level, numerically oriented programming language. It can be used for signal processing, statistical analysis, image enhancement, fluid dynamics simulations, numerical optimization, and modeling and simulation of explicit and implicit dynamical systems. MATLAB code, which is similar in syntax, can be converted to Scilab. Scilab is one of several open source alternatives to MATLAB.
I have tried Scilab. It is different from Matlab which is another software for scientific computing. Main benefit of 
Scilab is it is free software.Once you learn Scilab there will be not difficult to learn Matlab because both are numerically oriented programming language. There are some basic difference between Matlab and Scilab. You can read here about the differience.
You must be interested about using Scilab right now. You can download it freely from here.
In beginning there will be difficult to use Scilab. You may need help about it.
You can search  for manual and tutorial. Scilab itself provide a manual. You can download it from here. 
I hope this article will help you to understand about Scilab and you will enjoy numerical computing software. 

Wednesday, July 11, 2012

MATLAB tutorial for beginners

Most of the students find hard to learn MATLAB. This is because to use MATLAB we must habe basic programming knowledge. But many students do not show interest on programming before they have to use for further research project. When they show interest on it there may not be a teacher who can guide them to use MATLAB. There are plenty of books and material provided in online and you must have it in your computer too. But that material may not be sufficient to start using MATLAB because without demo some tools seems confusing.  Here is a video which will help you to understand the tools used in MATLAB. After understanding all these tips you can use your book or tutorial easily and be expert in MATLAB. 

I hope you will enjoy this Video and enjoy MATLAB. If you need books related with MATLAB you can contact me. I will send you in your mail. ENJOY MATLAB AND SHARE YOUR EXPERIENCE.

Thursday, July 5, 2012

Some applications that helps to understand basic astronomy

In developing country like in Nepal there is very few opportunity to perform the scientific experiments. Students mostly depend on theoretical knowledge. But there are some online applications that will help students to understand the deep meaning of physics easily. In this post I am going to provide some online application and one useful software that will help to understand basic astronomy easily. 
To understand the basic concept of astronomy The Nebraska Astronomy Applet Project have launched an online applet. Where we can see the rotation of earth and moon around the sun but it from the reference from the earth. Another tool is to study seasons. We can easily see how the revolution of earth around sun cause change in season. Similarly there are others applications also. Where you can observe many astronomical events easily. 
To use these tools just go to this link

In the right sidebar you will see some contents. Choose one which you want to see and click on that. Than new will be opened. On that window click on the image than the application will be started. On that application find the "start animation" tab and click on it. Now you can enjoy the online animated view of your desired field of astronomy.
And if you are too much interested about planets and stars but can't identify them then there is a software that may help you. This software's name is Stellarium and you can use it in Windows and in Linux too. But in Linux you have to download it from the software list but in windows you have to download it. So here is the link for download Stellarium
Download and install it. You can choose own place from the setting and enjoy the view. If you get some trouble in using it you can leave comment or directly contact me.