I mean 174 more on the snow day

Looks like a great day for exploring some of the Wolfram sites I've found so enchanting lately: demonstrations, articles galore, the online integrator, and Calc101. Although one has to buy a membership ($25/year) for all of the details of an integration, Calc101 gives away abundant details on many other things, such as calculations of partial fractions.

In case you should try out Aurora, the Microsoft Word add-in for mathematics that I've been enthusiastic about lately, be aware that there's what I would call an error in the process. You should download and install the latest MiKTeX before installing Aurora. Considering the complexity of the inner works, I find that it all goes amazingly smoothly. Here's a sample of the results that I'm enthusiastic about: see the last page. I don't know of an easier way to get such good-looking results.