Sage Days 6 Coding Sprints

List any and all project ideas here. Use the format

• (name) Project idea. If the idea is more than one line, make a [:/example: link like this (note the leading slash) to more info].

Here they are

(If this list gets much longer -- which it will - we might want to have subheadings, e.g. number fields, linear algebra, elliptic curves... -- john.cremona)

• (wstein) upgrade the freetype package in sage.
• (wstein) Number fields -- Reduction modulo a prime ideal, or any ideal.
• (wstein) Number fields -- optimize K([1,2,3,4,5]), etc., for K number field or order.
• (wstein) Timing of doctests (partially done)
• (wstein) Double question mark for spyx files doesn't work.; docstrings work.
• (wstein) Markup Cython code based on what C code it generates.
• (wstein) R Python expect interface

• (wstein) Redo all the "edwards coord" proofs in Sage instead of Magma. See email to sagedays6, along with http://hyperelliptic.org/EFD/edwards.html

• (wstein) ATLAS into Sage on Linux.
• (wstein) Linbox -- get rid of all the crappy hacks for minpoly/charpoly use in Sage.
• (wstein) Linbox -- fix wrapping of smith_form problems in Sage.
• (wstein) Create pickle database
• (wstein) Document number fields.

• (wstein) Compute kernels of matrices over Z/pnZ.

• (Ondrej Certik) simplify/improve calculus in SAGE [:/calculus: see this link for more info]

• (mabshoff) fix BlasMatrix::Hom leak in LinBox

• (mabshoff) start of 2.8.13 release cycle
• (david harvey) try to improve cache efficiency of NTL's FFT routine
• (Bill Allombert) improve PARI ECM implementation
• (john.cremona) adapt interface to new Simon gp scripts
• (john.cremona) elliptic curve isomorphisms, urst transforms of curves and points

• (john.cremona) improved #E(Fqd) for elliptic curves defined over Fq

• (malb) speed up GF(pn) for p/=2 and pn≥216 (using NTL::ZZ_pE and NTL::zz_pE)

• (malb) implement quotient rings over multivariate polynomial rings over finite fields using libSINGULAR
• (malb) implement multivariate polynomial rings over number fields using libSINGULAR

• (malb) implement sparse matrices over GF(pn) (using Givaro) modelled after sparse matrices modint.

• (weinmann) related to malb's point directly above: merge smatlib code into SAGE.
• (weinmann) extend MPolynomialSystemGenerator such that equation systems for (stream and block) ciphers can be generated in a generic way.