You don't think they're just the respective matrices of partial derivatives of each entry?

Excellent answer. While there's some great responses in this list, this one definitely gets my vote for most harmful.

I find that I enjoy the placement-of-vowels exercise that is left to the reader. :)

Kevin: Are you in the loop on this process? Any word on when this is likely to hit the bookstands?

I disagree. All-caps is equivalent to speaking more loudly. Depending on the context, just like in personal conversation, this can range from yelling to genuine excitement (to a variety of other things). In this case, it's clearly an all-caps of excitement, which in personal conversation would not be construed as impolite.

I'm intrigued by the last comment -- "where no one really knows what is happening." Not that I'm disagreeing, but did you have something specific in mind here?

It seems that all of these questions were answered in the previous topic, along with suggestions of where to repost the question more appropriately. Did you give those a shot?

Sage: Open Source Mathematics Software. I can't speak highly enough about it. Link: sagemath.org

Retagged. Ruby, you may want to go edit your original question to include what you have in the above comment, and more if possible.

Ah, good point. Interesting.