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I recently talked about angles in a triangle with my younger son. For today’s discussion I thought it would be fun to talk about angles in polygons. My son had some absolutely lovely ideas. It is so fun to hear how a kid thinks about a topic like this one. Sorry this is a little…

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A drunk man will find his way home, but a drunk bird may get lost forever.From Colloquial catchy statements encoding serious mathematics at Math Overflow.[ The serious math...A 2-dimensional random walk is recurrent (appropriately defined for either the discrete or continuous case) whereas in higher dimensions random walks are not. More details can be found for instance in this enjoyable blog post by Michael Lugo. "This particular saying, by the way, is usually attributed to
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This early morning, just before going out for my daily run around The Parc, I checked X validated for new questions and came upon that one. Namely, how to simulate X a Bin(8,2/3) variate and Y a Bin(18,2/3) such that corr(X,Y)=0.5. (No reason or motivation provided for this constraint.) And I thought the following (presumably […]

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There are cases when you need to define a simple, regular mesh on a nice set, like a triangle, or a polygon. There are software which are capable of creating such meshes, but most of them will require some computation time (Delaunay triangulation, plus optimization, edge swapping, etc.). I propose to you a simple algorithm […]

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Hi. It's been kind of a surreal spring in my personal life, my professional life, and at that odd intersection of the two. Some happenings have been deeply frustrating; others, deeply joyful. I've been spending a lot of time wondering when x or y will settle down, either because I'm tired of uncertainty or because I'm afraid of sustained happiness; I like stability.And I have been thinking about mistakes recently-- or rather, it'd be more accurate to say that a confluence of moments over a […]

ulaulaman tweeted: @ulaulaman

"Un teorema è per sempre!" http://t.co/ujKabHq4kP una @TEDTalks di Eduardo Saenz de Cabezon via @andreaplazzi

2015-04-21 07:40:18

ulaulaman tweeted: @ulaulaman

Tre proposte ludiche per moderni cacciatori di libri http://t.co/Yb4Yl93yPB by @marianotomatis via @tanzmax

2015-04-21 07:30:47

ulaulaman tweeted: @ulaulaman

Radiazione di forno a microonde http://t.co/jA5v81KgH7 by @quantizzando

2015-04-21 07:20:19

ulaulaman tweeted: @ulaulaman

La crisi (pianificata) dell’università si vede meglio da sud http://t.co/HRemzNgVYe su @Redazione_Roars via @tanzmax

2015-04-21 07:10:20

christianp tweeted: @christianp

Another integer sequence! I was amazed this one wasn't already in https://t.co/YdD8WsfWZ0

2015-04-21 07:05:01

ulaulaman tweeted: @ulaulaman

"Quando succedono cose tristi, l'unica soluzione è ridere" @EnricoMiceli1 http://t.co/q7meejfLdl

2015-04-21 07:00:09

rmathematicus tweeted: @rmathematicus

RT @NautilusMag: To understand climate change, we need to remember that the ocean has a very long memory. http://t.co/kiH9EKCDeU #climatech…

2015-04-21 06:47:11

rmathematicus tweeted: @rmathematicus

RT @NotchesBlog: "The Gay Bulge" or Can We Study Medieval Sexuality Through Puns? @tomod14 on #histsex in #medieval Ireland http://t.co/oLG…

2015-04-21 06:47:02

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