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Comment: Give proper credit for #5920
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Comment: Summarize #5997, #6010, #5913
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| * FIXME: summarize #5997 | * Deprecate the {{{order()}}} method on elements of rings (John Palmieri) -- The method {{{order()}}} of the class {{{sage.structure.element.RingElement}}} is now deprecated and will be removed in a future release. For additive or multiplicative order, use the {{{additive_order}}} or {{{multiplicative_order}}} method respectively. |
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| * FIXME: summarize #6010 | * Various invariants for genus 2 hyperelliptic curves (Nick Alexander) -- The following invariants for genus 2 hyperelliptic curves are implemented in the module {{{sage/schemes/hyperelliptic_curves/hyperelliptic_g2_generic.py}}}: * the Clebsch invariants * the Igusa-Clebsch invariants * the absolute Igusa invariants |
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| * FIXME: summarize #5913 | * Graph colouring (Robert Miller) -- New method {{{coloring()}}} of the class {{{sage.graphs.graph.Graph}}} for obtaining the first (optimal) coloring found on a graph. Here are some examples on using this new method: {{{ sage: G = Graph("Fooba") sage: P = G.coloring() sage: G.plot(partition=P) sage: H = G.coloring(hex_colors=True) sage: G.plot(vertex_colors=H) }}} {{attachment:graph-colour-1.png}} {{attachment:graph-colour-2.png}} |
Sage 4.0 Release Tour
Sage 4.0 was released on FIXME. For the official, comprehensive release note, please refer to sage-4.0.txt. A nicely formatted version of this release tour can be found at FIXME. The following points are some of the foci of this release:
Algebra
Deprecate the order() method on elements of rings (John Palmieri) -- The method order() of the class sage.structure.element.RingElement is now deprecated and will be removed in a future release. For additive or multiplicative order, use the additive_order or multiplicative_order method respectively.
Algebraic Geometry
Various invariants for genus 2 hyperelliptic curves (Nick Alexander) -- The following invariants for genus 2 hyperelliptic curves are implemented in the module sage/schemes/hyperelliptic_curves/hyperelliptic_g2_generic.py:
- the Clebsch invariants
- the Igusa-Clebsch invariants
- the absolute Igusa invariants
Basic Arithmetic
Build
Calculus
Coercion
Combinatorics
- FIXME: summarize #5502
- FIXME: summarize #5586
Commutative Algebra
- FIXME: summarize #5576
- FIXME: summarize #5609
- FIXME: summarize #5566
Distribution
Doctest
Documentation
Geometry
Graph Theory
Graph colouring (Robert Miller) -- New method coloring() of the class sage.graphs.graph.Graph for obtaining the first (optimal) coloring found on a graph. Here are some examples on using this new method:
sage: G = Graph("Fooba") sage: P = G.coloring() sage: G.plot(partition=P) sage: H = G.coloring(hex_colors=True) sage: G.plot(vertex_colors=H)
Graphics
- FIXME: summarize #5249
Group Theory
- FIXME: summarize #5664
- FIXME: summarize #5844
Interfaces
Viewing Sage objects with a PDF viewer (Nicolas Thiery) -- Implements the option viewer="pdf" for the command view() so that one can invoke this command in the form view(object, viewer="pdf") in order to view object using a PDF viewer. Typical uses of this new optional argument include:
- You prefer to use a PDF viewer rather than a DVI viewer.
- You want to view LaTeX snippets which are not displayed well in DVI viewers (e.g. graphics produced using tikzpicture).
- FIXME: summarize #6039
Linear Algebra
- FIXME: summarize #5974
- FIXME: summarize #5557
- FIXME: summarize #5381
Miscellaneous
- FIXME: summarize #6012
Modular Forms
- FIXME: summarize #4337
- FIXME: summarize #4357
- FIXME: summarize #5262
- FIXME: summarize #5792
- FIXME: summarize #5796
- FIXME: summarize #6019
- FIXME: summarize #5924
Notebook
Number Theory
- FIXME: summarize #5250
- FIXME: summarize #6013
- FIXME: summarize #6008
- FIXME: summarize #6004
Numerical
Packages
- FIXME: summarize #4223
- FIXME: summarize #6031
- FIXME: summarize #5934
- FIXME: summarize #1338
- FIXME: summarize #6032
- FIXME: summarize #6024
P-adics
- FIXME: summarize #5105
Quadratic Forms
Symbolics
Topology
- FIXME: summarize #5889
User Interface