Android is a kind of operating system that based on Linux operating system which is designed for the touchscreen mobiles, tablet computers and Smartphone. This is found in 2007 by the Android Inc. Android is now one of the most popular operating system and millions of people use Android Smartphone. There are lots of users of android version in Bangladesh too. As a result the authority has developed many android applications in Bangla language!



There is all the version released from the beginning :
Android 1.0 - Alpha
Android 1.1 - Beta
Android 1.5 - CupCake
Android 1.6 - Donut
Android 2.0 - Eclair (2.0–2.1)
Android 2.2 - Froyo (2.2–2.2.3)


Simpson's 1/3 Rule

Simpson’s 1/3 rule is based on approximating the integrand by a second order polynomial .It is an extension of Trapezoidal rule where, the trapezoidal rule was based on approximating the integrand by a first order polynomial, and then integrating the polynomial over interval of integration.

It calculates the value of the area under any curve over a given interval by dividing the area into equal parts. It follows the method similar to integration by parts.  It is used to estimate the value of a definite integral.

In order to integrate any function f(x) in the interval (a,b), follow the steps given below:
Ø  Select a value for n, which is the number of parts the interval is divided into. Let the value of n be an even number.
Ø  Calculate the width, h = (b−a) / n.
Ø  Calculate the values of x0 to xn as x0 = a, x1 = x0+ h, x n-1 = xn-2 + h, xn = b.
Ø  Consider y = f(x). Now find the values of y (y0 to yn) for the corresponding x(x0 to xn) values.
Ø  Substitute all the above found values in the Simpson's Rule Formula to calculate the integral value.

When do we actually use Windows RUN(Win+R) option?
-Just simply type "tree" and we refresh our computer shortly.That's it.
But I collected some extra very important shortcut which really help you to save your time. So, Let's fun!  :)
For calculator you have to simply type
"calc" in RUN option & calculator will appear immediately.
Very useful shortcut given below. Collect these and use in time.

Add/Remove Programs – appwiz.cpl
Adobe Photoshop (if installed)- photoshop
Bluetooth Transfer Wizard – fsquirt
Calculator – calc

Time is very important for us. Because of saving time, we use shortcut in many application  or
program. We have windows shortcut , Mac shortcut, Linux shortcut. All kind's of software also have some shortcut keys so that user can do there task quickly and easily. Facebook, one of the most popular social network. Almost everyone who use internet, use facebook. Here is some shortcut for facebook:

MARI themes

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