Microsoft PowerPoint has an excellent equation tools for entering math equations. But if you have lots of equations to enter, it became tedious to go through the tool ribbon and switch back and forth between mouse click and keyboard. It
What you need to know about Windows 10 free upgrade from Windows 7 and 8
Microsoft finally joined the free OS movement by offering the free upgrade for the new Windows 10 to come (and yes, they decided to skip Windows 9). Well, to be fair, with some catch. Here is the offer detail from