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DELTA: Martin suggested working directly from ntl_ZZ integers. Will have to investigate this. DELTA: The implementation is done (07/06), as expected, it's slower over ZZ and QQ but faster over RR DELTA: Correcting bug: handling of polys with big (10^6) coefficients. It's really slow for bigger rational coefficients |
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| DELTA: Actually, it does after some modifications by Martin. === cimport-ing RealNumber types === Kinda annoying and unituitive (from a user's POV) of why you cannot do "cimport mpfr" * I think this should be quick and painless to do... DELTA: done, submitted as a patch for possible inclusion == IDEAS/Wishlist for SAGE == === easily generate random polynomials over rings === * Just a shorthand functions that doesnt male me write this every time: {{{sage: x = ZZ['x'].gen() ; h = sum([randint(10^5,10^6)*x^i for i in range(1000)]);}}} * should look like: {{{randpoly(R,min_coef=0,max_coef,max_degree,dense=True)}}} * Better yet, we should be able to specify the level of sparsity * See "Random elements" on SAGE projects page === Doctest status script === |
=== Doctest Status === |
Didier
Email: MailTo(dfdeshom AT SPAMFREE gmail DOT com)
SAGE-related projects
Multiplication algorithm
A (slightly) faster multiplication algorithm of univariate polynomnials over R. Currently, this is known as _mul_fateman() in rings/polynomial_element.py but needs to be faster, probably through PARI or PyrexDELTA: I've finally started working on this. See my ext/polynomial_pyx.pyx for a preview. As predicted, the speedup is nice. Only integers are handled for now.
RealLib inclusion
RealLib3 as an alternate source for computing real numbers.
RealLib vs MPFR:
RealLib should not be a replacementto MPFR. MPFR has its uses and is
faster than RealLib3
DELTA: Thanks to Dr Lambov, this now compiles on 386 and AMD64 and PPC. I've built a new version and posted patches.
Tweaking Hermes
Logging of sessions using mathml through hermes:
- Improve, add fonts to hermes
- The final goal is to be able to reproduce the entire documentation
- in mathmml format. This is currently possible if you hack up some missing
fonts and avoid to generate the table of contents. Quite a pain
I'll post a link to the generated doc
- in mathmml format. This is currently possible if you hack up some missing
Logging of pictures in dvi and mathml logger.
- Possible, but slightly tricky (how do you include a jpeg file in a DVI file
- without converting it to an EPS file?).
Doctest Status
Does each method have an example? Instead of checking by hand a handy script could be used. I have a script that does that: [http://sage.math.washington.edu/home/dfdeshom/sage/devel/sage/doctest-status.py http://sage.math.washington.edu/home/dfdeshom/sage/devel/sage/doctest-status.py ] For example, here is the output for integer.pyx:
Results for sage/ext/integer.pyx ---------------------------------------- Total number of tests : 87 Number of tests with examples: 42 Tests with no examples : __int__, __div_, _interface_init_, _xgcd, __cmp__, factor, factorial, __mul_, integer, __add_, __richcmp__, __floordiv, __nonzero__, crt, _and, _lcm, __long__, __str_malloc, rational_reconstruction, _mpfr_, parent, __sub_, pmem_malloc, __and__, _reduce_set, __float__, _pari_, _rshift, __invert__, _latex_, _mathml_, copy, valuation, _or, _im_gens_, __hash__, GCD_list, __reduce__, LCM_list, __new__, is_unit, __dealloc__, __repr__, __or__, _lshift ********************************************************************************
Automatic build+testing
* sage -br is nice, but how about an option to also run tests on any file that is being rebuilt?