Activity
From 31 Jul 2019 to 29 Aug 2019
29 Aug 2019
- 14:55 CoCoALib Feature #1227: exgcd; solve Bezout equation
- An exgcd function would be very useful.
It is used in computing the Hermite normal form (#1304) and in computing Gr... - 14:43 CoCoA-5 Feature #1304 (New): Hermite normal form
- I created a prototype implementation for computing the Hermite normal form and for solving linear systems over the in...
- 12:17 CoCoA-5 Feature #1272: Groebner Bases over ZZ
- Changes to the previous version:
- some code cleanup
- fix bug in the ExtendedGBoverZZ function
- add functions Is...
27 Aug 2019
- 11:09 CoCoA-5 Bug #1303 (Rejected): Manual looking for "?"
- CoCoA's behaviour on the following inputs is a bit unexpected:...
- 11:05 CoCoA-5 Bug #1261 (Feedback): ASCII function
- No reaction in the last 5 months; did Anna test the code (and check it in)?
Moving to feedback.
02 Aug 2019
- 22:43 CoCoALib Slug #1302 (Rejected): Factorization mod p
- My fault! The factorization is actually rather fast (since it is mostly a square-free decomposition). The slow part...
- 14:14 CoCoALib Slug #1302 (Rejected): Factorization mod p
- CoCoALib took longer than expected to factorize *@x^11009 - 2@* modulo 109 (or was it 101?)
Anyway, @11009 = 101*109...
31 Jul 2019
- 16:40 CoCoALib Feature #1301 (Feedback): New function primorial
- I have implemented it: the real work is done by GMP.
Added doc; accessible from CoCoA-5. No test/example.
- 16:39 CoCoALib Feature #1301 (Closed): New function primorial
- Add a new function *@primorial@*, the product of al primes up to a given limit.
- 11:04 CoCoALib Bug #1300 (Feedback): CoprimeFactorBasis: mishandles negative args
- Fixed. I'll add some tests.
- 11:03 CoCoALib Bug #1300 (Closed): CoprimeFactorBasis: mishandles negative args
- @CoprimeFactorBasis@ gives wrong answers when args are negative. Here is a simple example in CoCoA-5...
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