Wolfram Alpha has made some fairly big strides in its few short years of existence, but the so-called computational knowledge engine has now rolled out what founder Stephen Wolfram says is the "the single most important development for Wolfram Alpha since the original website launched in 2009." That development is Wolfram Alpha Pro, a new premium service that will run you $4.99 a month (or $2.99/month for students) and give you access to a wealth of new options for both input and output. On the input end, you can now upload images, audio and other files (over 60 types in all) for automatic analysis and a detailed report -- according to Stephen Wolfram, the u
