Dramatis persona*

helenhead Helen Chick

I've always wanted a bumper sticker that said "I'm a female, LDS/Mormon, Scout leading, geocaching, piano-playing, bicycling, mathematics educator with a PhD in maths ... and I VOTE"!

I think this makes me a minority group of cardinality 1!

* Since there's only one of me and "personae" is plural (I think), I've gone with dramatis persona.
March 2010
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Consider triangle ABC …

I’ve been diverted by a nice little maths result that was only discovered in the early 1990s. Take a triangle, and divide each side into three. Now connect each of the pairs of trisection points to the vertex opposite (these are the black lines in the picture). These lines create a hexagon in the middle of […]