Wolfram Alpha

Proofs and Wolfram Alpha

In my Introduction to Proofs course, I discussed the proof the following: The cube of an integer is of the form 9k, 9k+1, or 9k+8, for some integer k. The problem is from the text I use, How to Think Like a Mathematician: A Companion to Undergraduate Mathematics The big idea here is to to note that any integer can… Read more →

Efficient Math Commands for Wolfram Alpha

Wolfram Alpha is a free, online, computational engine. It provides some of the power of a computational algebra system (CAS) such as Maple or Mathematica without having to learn the proper syntax. However, it takes a little bit of practice to get WA to give exactly what you want. Here, I’ll give a list of queries that are commonly used… Read more →

Wolfram Alpha

There has already been a lot of buzz about the online computational engine called Wolfram Alpha (WA). You can check out this article in the Wall Street Journal, for instance. My main interest in WA is to figure out how to integrate it into the classes that I teach, which range from developmental mathematics to graduate level numerical analysis. In… Read more →