Creating Element Classes

cython

asked 2012-09-28 01:36:08 +0100

SLOtoSF
107 ●7 ●13 ●19

updated 2012-09-28 01:36:48 +0100

Hi! I want to be able to create elements, and want their parents to be elements, so I've been reading this page: http://www.sagemath.org/doc/reference....

The example shows Cython commands it seems (cdef v def).... Why? Couldn't I just do this in Python?

Excerpt from page cited above.

Elements typically define a method _new_c, e.g.,

cdef _new_c(self, defining data): cdef FreeModuleElement_generic_dense x x = PY_NEW(FreeModuleElement_generic_dense) x._parent = self._parent x._entries = v

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answered 2012-09-28 05:42:47 +0100

Volker Braun
3301 ●11 ●30 ●75

Elements can be implemented in plain Python and in Cython. Often, Cython is used for speed but you don't have to.

You should have a look at the worksheet on http://trac.sagemath.org/11490

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Wonderful. I had no idea that there were these educational worksheets about Sage development. Is there a general repository for them? (I've posted this as a different question). Thanks!

SLOtoSF ( 2012-09-28 06:00:10 +0100 )edit

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Asked: 2012-09-28 01:36:08 +0100

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Last updated: Sep 28 '12

Creating Element Classes edit