By default Windows calculator doesn't support order of operation, to enable the functionality you need to activate the scientific view, let me show you how.
In this tutorial, I will show some simple first steps on very popular community Facebook. We will signup , upload profile picture and edit some personal information.
If you want to print website but you don't want to print certain objects on the page, you can remove them before you print the page. I will show how you can easily do that with the help of simple web application.
A very useful Facebook debugger tool where you can check how your webpage looks like on Facebook when like button is pressed, without actually pressing the like button.