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Dan Piponi's user avatar
Dan Piponi's user avatar
Dan Piponi's user avatar
Dan Piponi
  • Member for 14 years, 8 months
  • Last seen this week
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About

aka @sigfpe

Did a PhD in theta functions on Riemann surfaces many years ago. Up until recently I wrote software for movie effects, now I work for Google, and in my spare time play with applications of category theory to functional programming.

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Top posts
View all questions, answers, and articles
218
Generate a random point within a circle (uniformly)
Apr 29, 2011
53
Abusing the algebra of algebraic data types - why does this work?
Feb 8, 2012
38
What are some interesting uses of higher-order functions?
Apr 27, 2011
37
Affine transformation algorithm
May 3, 2010
36
How can I input Greek symbols like \beta, \lambda in emacs?
Jun 7, 2011
30
Is it faster to count down than it is to count up?
May 12, 2010
26
What math do I need to convert numbers according to this table?
May 3, 2010
21
Does Haskell require a garbage collector?
Apr 1, 2012
20
map versus mapM behavior
Jun 29, 2010
18
Creating functions over Enumerations
Jun 6, 2011
Top network posts
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231
Computer algebra errors
163
Your favorite surprising connections in mathematics
93
Papers that debunk common myths in the history of mathematics
91
Relating category theory to programming language theory
87
What is the exterior derivative intuitively?