SAGE Days 2: SAGE: Now and The Future
A talk for [:days2:the SAGE Days 2 workshop], by William Stein.
The purpose of this workshop:
- lots of strategy, planning, brainstorming, etc.
- Funding ideas:
- NSF Grants:
- Computational Math program
CSUMS (http://sage.math.washington.edu/grants/stein-csums-06/)
- The SAGE Mathematics Foundation
- Parallel SAGE push
- NSF Grants:
- Mercurial revision control system: why? what? how? -- a very quick tour
Python 2.5 (see http://docs.python.org/whatsnew/whatsnew25.html)
list indices: __index__ method; This means n=2; [1,2,3,4][n] works!!
big lists lists with more than 2^{32} elements now supported
speed lots speedups
memory -- memory is now freed
ctypes -- ctypes is included standard
conditional expressions: x = true_value if condition else false_value
context managers: relevant to all the discussion about precision lately: http://docs.python.org/whatsnew/pep-343.html
any and all -- new mathy builtins:
sage: any(is_prime(x) for x in range(114,125)) False sage: all(is_prime(x) for x in prime_range(50,100)) True
- Recent additions to SAGE:
- GSL: GNU Scientific Library
- Twisted: Networking framework
- Macaulay2: optional package that builds from source
- Upcoming events that are relevant to SAGE development:
- October 23-27: I'm speaking about SAGE at an IMA "Software in Algebraic Geometry" in Minnesota later this month.
- Nov 5-11: Me at CCR
- Dec 3-4, 2006: Me at Waterloo
Jan 29-Feb 2: MSRI Interactive Parallel Computation ---> SAGE
- March 10-14, 2007: Arizona Winter School (I'm at co-organizer). David Savitt (here) is the organizer.
- June 3-8, 2007: Banff workshop on modular forms computation -- I'm an organizer
- July 30-Aug 3, 2007: AIM: Workshop on Modular Forms and L-functions -- I'm an organizer
- Plans:
- SAGE 2.0: fast arithmetic
- SAGE 3.0: parallel
- Along the way: modular forms, elliptic curves, groebner basis, quaternion algebras, etc. -- what people want