Posts tagged mathematics communication
How Not to Be Wrong (Book Review)
How Not to Be Wrong, the first popular math book by University of Wisconsin-Madison math professor Jordan Ellenberg, just hit the shelves. In addition to a Ph.D. in math, Ellenberg has an MFA in creative writing and has been writing about math for popular audiences for several years. Unsurprisingly, the book is witty, compelling, and just pla [...]
How To Multiply By Seven on Your Fing...
When I tutored elementary school math, one of my favorite things to show the kids was how to multiply by 9 using their fingers. (I apologize, but this trick assumes that you have five fingers on each hand. Later you’ll see how to adapt it if you have nonstandard hands.)
Here’s how the finger rule works. Let’s say you want to [...]
Complex Projective 4-Space
A visualization of the complex function (z/2)^7-1, with the 7 Antarcticas showing where the roots of the function are. Image: Adam P. Goucher.
Complex Projective 4-Space recently celebrated its first birthday, and I was surprised to learn it was that young. I’ve been reading since January or so, and I guess I just assumed it had been ar [...]
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