Category Archives: nerdify


I cannot tell if I’m impressed or horrified by this eigenvalue calculation:

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According to one student’s quiz answer, Fubini’s Theorem lets us to compute double integrals by turning them into irritated integrals.

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So long, and thanks for all the price gouging

Whenever I see Martin “Pharma Bro” Shkreli, I am reminded of a line from the 12th Chapter of the Restaurant at the End of the Universe: “He smiled a tight little smile which Zaphod wanted to hit with a brick.” … Continue reading

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I am grading linear algebra homework, and a not-insubstantial percentage of students attacked the problem of determining whether or not [2,6,6] was in the span of [-1,2,3], [3,4,2], and [-9,-2,5] by converting this into the system of 3 equations in … Continue reading

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Greek to me

So I gave the problem below to my Calc 3 class during an “open quiz” (think in-class work), as a means of assessing (a) that they know what the symbols mean without the crutch of loaded letters (like x, y, … Continue reading

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