|
Size: 519
Comment:
|
Size: 2449
Comment: Summarize tickets #3787, #3785, #3640
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 7: | Line 7: |
| * Powers of polynomial variables (Alex Ghitza) -- Report an error message when a determinate of a (multivariate) polynomial is raised to a fractional exponent. Previously, raising a polynomial determinate to a fractional power has the effect of rounding the exponent to an integer. As yet, fractional powers is not supported. * Extensions of finite fields (Alex Ghitza) -- Implements methods {{{random_element()}}} and {{{order()}}} for quotients of polynomial rings. The method {{{random_element()}}} returns the number of elements of a quotient ring, and {{{order()}}} returns a random element of a quotient ring. * Conjugates for integer, rational and real numbers (Alex Ghitza) -- Implements trivial {{{conjugate()}}} methods for elements over the integers, rationals, and reals. Conjugates work (trivially) for matrices over rings that embed canonically into the real numbers. * Square roots of Galois field elements (John Cremona, William Stein) -- Improve the square root of an element of a Galois field {{{GF(2^e)}}}, where {{{e > 15}}}. Previously, this works fine except for the square root of 1, where 1 is an element of {{{GF(2^e)}}} for {{{e > 15}}}. |
|
| Line 8: | Line 16: |
* Upgrade ATLAS in Sage to version 3.8.2 (Michael Abshoff) -- An update of the ATLAS spkg to the upstream version 3.8.2. This upstream version now provides: (1) better detection of Pentium D and E; (2) detect more Core2Duos cores; and (3) properly detect Dunnington cores. Versions 3.8.x for x < 2 sometimes detect a modern CPU architecture as an older architecture, hence causing a massive blow up in the time it takes to compile ATLAS on systems like Xeon core 2 quad, Itanium 2, and Xeon E5420. * Update optional Sage package polymake (Michael Abshoff) -- The updated optional Sage package is polymake-2.2.p5. Earlier versions hard coded spkg versions of cddlib and gmp, and could cause polymake to break in Sage versions 3.0.3 and 3.0.4. |
Sage 3.2.3 Release Tour
Sage 3.2.3 was released on FIXME. For the official, comprehensive release notes, see sage-3.2.3.txt.
Algebra
- Powers of polynomial variables (Alex Ghitza) -- Report an error message when a determinate of a (multivariate) polynomial is raised to a fractional exponent. Previously, raising a polynomial determinate to a fractional power has the effect of rounding the exponent to an integer. As yet, fractional powers is not supported.
Extensions of finite fields (Alex Ghitza) -- Implements methods random_element() and order() for quotients of polynomial rings. The method random_element() returns the number of elements of a quotient ring, and order() returns a random element of a quotient ring.
Conjugates for integer, rational and real numbers (Alex Ghitza) -- Implements trivial conjugate() methods for elements over the integers, rationals, and reals. Conjugates work (trivially) for matrices over rings that embed canonically into the real numbers.
Square roots of Galois field elements (John Cremona, William Stein) -- Improve the square root of an element of a Galois field GF(2^e), where e > 15. Previously, this works fine except for the square root of 1, where 1 is an element of GF(2^e) for e > 15.
Build
Upgrade ATLAS in Sage to version 3.8.2 (Michael Abshoff) -- An update of the ATLAS spkg to the upstream version 3.8.2. This upstream version now provides: (1) better detection of Pentium D and E; (2) detect more Core2Duos cores; and (3) properly detect Dunnington cores. Versions 3.8.x for x < 2 sometimes detect a modern CPU architecture as an older architecture, hence causing a massive blow up in the time it takes to compile ATLAS on systems like Xeon core 2 quad, Itanium 2, and Xeon E5420.
- Update optional Sage package polymake (Michael Abshoff) -- The updated optional Sage package is polymake-2.2.p5. Earlier versions hard coded spkg versions of cddlib and gmp, and could cause polymake to break in Sage versions 3.0.3 and 3.0.4.
Coercion
Commutative Algebra
Doctest
Documentation
Graphics
Interfaces
Linear Algebra
Miscellaneous
Modular Forms
Notebook
Number Theory
Optional Packages
Packages