Monthly Archives: January 2014

1 + 2 + 3 + 4 + …

There’s a video that has gone viral and concerns itself with the equation . A couple of students from my Calculus 2 class last semester sent me the following e-mail, which makes me smile for several reasons: We are rather … Continue reading

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Q: What do you call it when in early January you use an exact sequence to describe the structure of a module?

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“At all”

My parents (originally from Michigan and Maine; well-educated native speakers of American English) and I agree that the comic above is sufficiently incomprehensible as to be not funny, but also that it’s written in non-standard English: the phrase “at all” … Continue reading


Posted in Miscellany | Tagged , | 5 Comments


It was -15F or so when we flew in yesterday, with wind chills in the -40 to -60 range.  This beats by several degrees the coldest day since I arrived in August 2012, and in fact led to school closures … Continue reading

Posted in Miscellany, What's the news? | Tagged , , | 2 Comments