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Dan Piponi's user avatar
Dan Piponi's user avatar
Dan Piponi
  • Member for 15 years, 1 month
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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
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answer
300
Why is a topology made up of 'open' sets?
Mar 23, 2010
answer
232
Computer algebra errors
Jan 13, 2010
answer
163
Your favorite surprising connections in mathematics
Feb 8, 2010
answer
98
Papers that debunk common myths in the history of mathematics
May 31, 2010
answer
92
Relating category theory to programming language theory
Nov 5, 2009
answer
90
What is the exterior derivative intuitively?
Apr 11, 2010
answer
78
Short exact sequences every mathematician should know
Jun 21, 2020
answer
78
What's a groupoid? What's a good example of a groupoid?
Jan 27, 2010
answer
62
Cool problems to impress students with group theory
Jan 30, 2010
answer
48
Which mathematicians have influenced you the most?
May 14, 2010
Top network posts
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218
Generate a random point within a circle (uniformly)
70
Where does the word "torsion" in algebra come from?
55
Please explain the intuition behind the dual problem in optimization.
53
Abusing the algebra of algebraic data types - why does this work?
46
Why are $3D$ transformation matrices $4 \times 4$ instead of $3 \times 3$?