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*Adventures in fantastic realms*
*you can build inside your head*

Welcome to Mathematical Enchantments (aka "Jim Propp's math blog") !

Blog posts (uploaded on the 17th of each month) are at my wordpress site,

http://mathenchant.wordpress.com,
and links to all posts and to audio files (in .wav format)
are for the time being available right here:

- 0: Why this blog? :
text and audio
- 1: The lessons of a square-wheeled trike :
text and audio
- 2: The life of games :
text
- 3: The one about .999... :
text
- 4: Polya's urn :
text
- 5: Erdos for epsilons: "The Boy Who Loved Math" :
text
- 6: "Really Big Numbers" :
text
- 7: How to be wrong :
text
- 8: When not to expect what you're expecting :
text
- 9: Believe it, then don't: toward a pedagogy of discomfort :
text
- 10: The paintball party problem and the habit of symmetry :
text
- 11: Fermat's Last Theorem: the curious incident of the boasting Frenchman :
text
- 12: Sri Ramanujan and the secrets of Lakshmi: text
- 13: "The Man Who Knew Infinity": what the film will teach you (and what it won't) : text
- 14: Bertrand's Ballot Problem : text
- 15: Going Negative, part 1: text
- 16: Going Negative, part 2: text
- 17: Breaking logic with self-referential sentences: text
- 18: Will '17 be the Year of the Pig?: text
- 19: Avoiding chazakah with the Prouhet-Thue-Morse sequence: text
- 20: Three-point-one cheers for pi!: text

I also have a Twitter feed, under the name @JimPropp.

Other mathematical writings of mine for a general audience are:
Chinook
(a report on the 1994 Man-Machine World Checkers Championship);
my review
of "The Cat in Numberland";
and my review
of "The Art of Mathematics: Coffee Time in Memphis".
(See the bottom of my
list of publications
for information on where they were published.)

I did a half-hour radio
interview in 2007, in which I talked about mathematical proof.

In 2012 and 2013, I gave two talks (or the same talk twice) called
"Wild Beauty: Postcards from Mathematical Worlds".
The first
has better sound-quality, but the
second
has better slides.

Finally,
here's a video of
a talk I gave at the University of Connecticut back in April of 2014.
It covers many of the themes that I'll be treating in my blog.

The logo that appears at the top of the page was designed by me
and implemented by Sandi Gubin. Want to know what it is and why
I chose it? Stay tuned!

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on Facebook!

If you want to start a math blog of your own,
check out my list of tips
for blogging about math in WordPress.

- Jim Propp, Department of Mathematical Sciences, UMass Lowell