1. 24 Dec, 2017 1 commit
  2. 22 Dec, 2017 1 commit
  3. 21 Dec, 2017 12 commits
    • Release Manager's avatar
      Trac #24372: Map._extra_slots(): do not pass dict · 348432f7
      Release Manager authored
      In the `Map` method `_extra_slots`, a dict is passed as input. That dict
      is then modified in-place and also returned as output.
      
      This awkward logic is not needed for anything. We simplify this by not
      passing a dict as input and creating a new dict from scratch if needed.
      
      URL: https://trac.sagemath.org/24372
      Reported by: jdemeyer
      Ticket author(s): Jeroen Demeyer
      Reviewer(s): Travis Scrimshaw
      348432f7
    • Release Manager's avatar
      Trac #24364: Perfectness of B^{r,s} in type A_{2n}^{(2)\dagger} is wrong · 67c266fe
      Release Manager authored
      One can check by definition that B^r,s^ in type A,,2n,,^(2)\dagger^ is
      perfect of level s. Currently it returns s/2, but it needs special
      casing.
      
      URL: https://trac.sagemath.org/24364
      Reported by: tscrim
      Ticket author(s): Travis Scrimshaw
      Reviewer(s): Frédéric Chapoton
      67c266fe
    • Release Manager's avatar
      Trac #24348: Don't initialize _element_constructor in Parent.__call__ · 900d9bcb
      Release Manager authored
      `Parent.__call__` has some logic to set `_element_constructor`. But this
      isn't the duty of `__call__`, it should already have been set.
      
      URL: https://trac.sagemath.org/24348
      Reported by: jdemeyer
      Ticket author(s): Jeroen Demeyer
      Reviewer(s): Travis Scrimshaw
      900d9bcb
    • Release Manager's avatar
      Trac #24344: Implement twisted Q-systems · f1a9b221
      Release Manager authored
      So we can compute characters of KR modules for twisted types in terms of
      fundamentals Q,,1,,^(a)^.
      
      URL: https://trac.sagemath.org/24344
      Reported by: tscrim
      Ticket author(s): Travis Scrimshaw
      Reviewer(s): Frédéric Chapoton
      f1a9b221
    • Release Manager's avatar
      Trac #24292: py3: minor fixes to sage.misc.cachefunc · fe483df6
      Release Manager authored
      With these fixes, plus various fixes in other modules (to be submitted
      separately) I was able to get all the tests in `sage.misc.cachefunc` to
      pass.
      
      URL: https://trac.sagemath.org/24292
      Reported by: embray
      Ticket author(s): Erik Bray
      Reviewer(s): Frédéric Chapoton, Jeroen Demeyer
      fe483df6
    • Release Manager's avatar
      Trac #24115: Remove ContinuedFractionField · bbc77a71
      Release Manager authored
      Deprecated in #20012
      
      URL: https://trac.sagemath.org/24115
      Reported by: jdemeyer
      Ticket author(s): Jeroen Demeyer
      Reviewer(s): Travis Scrimshaw
      bbc77a71
    • Release Manager's avatar
      Trac #23008: floor of NumberFieldElement_quadratic broken · 11a039e0
      Release Manager authored
      This is fine:
      {{{
      sage: z = QQ['z'].0
      sage: K.<phi> = NumberField(z^2-z-1, 'phi')
      sage: floor(phi)
      1
      sage: K.<phi> = NumberField(z^2-z-1, 'phi', embedding=AA(golden_ratio))
      sage: floor(phi)
      1
      }}}
      
      This is weird:
      {{{
      sage: K.<phi> = NumberField(z^2-z-1, 'phi',
      embedding=QQbar(golden_ratio))
      sage: floor(phi)
      -1
      }}}
      
      A workaround:
      {{{
      sage: phi.n()
      1.61803398874989
      sage: floor(phi.n())
      1
      }}}
      
      URL: https://trac.sagemath.org/23008
      Reported by: slabbe
      Ticket author(s): Vincent Delecroix
      Reviewer(s): Frédéric Chapoton
      11a039e0
    • Release Manager's avatar
      Trac #13552: finite_class.py derived from deprecated Combinatorial Class has no comment · 8ea14684
      Release Manager authored
      Hi, This ticket is about entering a deprecation in `finite_class.py` to
      no longer use it and instead use `FiniteEnumeratedSets`.
      
      `finite_class.py` (`FiniteCombinatorialClass`) is derived from
      `CombinatorialClass`, which has the comment:
      {{{
         946     """
         947     This class is deprecated, and will disappear as soon as all
      derived
         948     classes in Sage's library will have been fixed. Please derive
         949     directly from Parent and use the category
      :class:`EnumeratedSets`,
         950     :class:`FiniteEnumeratedSets`, or
      :class:`InfiniteEnumeratedSets`, as
         951     appropriate.
      }}}
      We go a step further in and fully deprecate `finite_class.py` and
      redirects them to use/develop `FiniteEnumeratedSets` instead.
      
      URL: https://trac.sagemath.org/13552
      Reported by: startakovsky
      Ticket author(s): Frédéric Chapoton
      Reviewer(s): Travis Scrimshaw
      8ea14684
    • Release Manager's avatar
      Trac #7302: Nowhere zero flow · 09881fd0
      Release Manager authored
      As we will soon have a Flow function in Sage, the next step could be to
      write a Nowhere Zero flow function !
      
      It should also be possible to define a flow over an abelian group, as
      they equivalently exist...
      
      More informations there : http://en.wikipedia.org/wiki/Nowhere-zero_flow
      
      URL: https://trac.sagemath.org/7302
      Reported by: ncohen
      Ticket author(s): David Coudert
      Reviewer(s): Travis Scrimshaw
      09881fd0
    • Release Manager's avatar
      Trac #24396: test failure in manifolds/differentiable/tensorfield.py (8.2.beta0) · 7beb97cb
      Release Manager authored
      The following fails when `--long` is not specified
      {{{
      $ sage -t manifolds/differentiable/tensorfield.py
      **********************************************************************
      File "manifolds/differentiable/tensorfield.py", line 295, in
      sage.manifolds.differentiable.tensorfield.TensorField
      Failed example:
          t[eV,1,1,c_uv].expr()
      Exception raised:
          Traceback (most recent call last):
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 517, in _run
              self.compile_and_execute(example, compiler, test.globs)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 920, in compile_and_execute
              exec(compiled, globs)
            File "<doctest
      sage.manifolds.differentiable.tensorfield.TensorField[36]>", line 1, in
      <module>
              t[eV,Integer(1),Integer(1),c_uv].expr()
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/manifolds/differentiable/tensorfield.py", line 1472, in
      __getitem__
              return self.comp(frame)[args]
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/manifolds/differentiable/tensorfield.py", line 1235, in
      comp
              return rst.comp(basis=basis, from_basis=from_basis)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/manifolds/differentiable/tensorfield_paral.py", line 921,
      in comp
              from_basis=from_basis)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/tensor/modules/free_module_tensor.py", line 1076, in
      components
              "the components in the {}".format(basis))
          ValueError: no basis could be found for computing the components in
      the Coordinate frame (V, (d/du,d/dv))
      **********************************************************************
      File "manifolds/differentiable/tensorfield.py", line 298, in
      sage.manifolds.differentiable.tensorfield.TensorField
      Failed example:
          type(t[eV,1,1,c_uv].expr())
      Exception raised:
          Traceback (most recent call last):
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 517, in _run
              self.compile_and_execute(example, compiler, test.globs)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 920, in compile_and_execute
              exec(compiled, globs)
            File "<doctest
      sage.manifolds.differentiable.tensorfield.TensorField[37]>", line 1, in
      <module>
              type(t[eV,Integer(1),Integer(1),c_uv].expr())
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/manifolds/differentiable/tensorfield.py", line 1472, in
      __getitem__
              return self.comp(frame)[args]
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/manifolds/differentiable/tensorfield.py", line 1235, in
      comp
              return rst.comp(basis=basis, from_basis=from_basis)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/manifolds/differentiable/tensorfield_paral.py", line 921,
      in comp
              from_basis=from_basis)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/tensor/modules/free_module_tensor.py", line 1076, in
      components
              "the components in the {}".format(basis))
          ValueError: no basis could be found for computing the components in
      the Coordinate frame (V, (d/du,d/dv))
      **********************************************************************
      File "manifolds/differentiable/tensorfield.py", line 318, in
      sage.manifolds.differentiable.tensorfield.TensorField
      Failed example:
          f = t(a,b)
      Exception raised:
          Traceback (most recent call last):
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 517, in _run
              self.compile_and_execute(example, compiler, test.globs)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 920, in compile_and_execute
              exec(compiled, globs)
            File "<doctest
      sage.manifolds.differentiable.tensorfield.TensorField[46]>", line 1, in
      <module>
              f = t(a,b)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/manifolds/differentiable/tensorfield.py", line 2348, in
      __call__
              resu_rr = self_rr(*args_rr)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/manifolds/differentiable/tensorfield_paral.py", line 1461,
      in __call__
              return FreeModuleTensor.__call__(self_r, *args_r)
            File "/home/vdelecro/sage_patchbot/local/lib/python2.7/site-
      packages/sage/tensor/modules/free_module_tensor.py", line 2130, in
      __call__
              raise ValueError("no common basis for the components")
          ValueError: no common basis for the components
      Killing test manifolds/differentiable/tensorfield.py
      ----------------------------------------------------------------------
      Doctests interrupted: 0/1 files tested
      ----------------------------------------------------------------------
      Total time for all tests: 26.5 seconds
          cpu time: 0.0 seconds
          cumulative wall time: 0.0 seconds
      }}}
      
      URL: https://trac.sagemath.org/24396
      Reported by: vdelecroix
      Ticket author(s): Vincent Delecroix
      Reviewer(s): Eric Gourgoulhon
      7beb97cb
    • Release Manager's avatar
      Trac #24376: Upgrade notedown · 4fce8f11
      Release Manager authored
      The current version of notedown does not work with the latest Jupyter
      notebook version:
      {{{
      Traceback (most recent call last):
        File "/usr/local/src/sage-config/local/bin/notedown", line 11, in
      <module>
          load_entry_point('notedown==1.5.0', 'console_scripts', 'notedown')()
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/pkg_resources/__init__.py", line 561, in load_entry_point
          return get_distribution(dist).load_entry_point(group, name)
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/pkg_resources/__init__.py", line 2631, in load_entry_point
          return ep.load()
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/pkg_resources/__init__.py", line 2291, in load
          return self.resolve()
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/pkg_resources/__init__.py", line 2297, in resolve
          module = __import__(self.module_name, fromlist=['__name__'],
      level=0)
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/notedown/__init__.py", line 8, in <module>
          from .contentsmanager import NotedownContentsManager
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/notedown/contentsmanager.py", line 8, in <module>
          from notebook.services.contents.filemanager import
      FileContentsManager
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/notebook/services/contents/filemanager.py", line 21, in
      <module>
          from .manager import ContentsManager
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/notebook/services/contents/manager.py", line 38, in <module>
          class ContentsManager(LoggingConfigurable):
        File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/notebook/services/contents/manager.py", line 70, in
      ContentsManager
          untitled_notebook = Unicode(_("Untitled"), config=True,
      NameError: name '_' is not defined
      }}}
      
      '''Tarball''': https://pypi.python.org/packages/58/1b/a926945216cb7d1d21
      abdbc975195bd7beb3bceafa41c186ecb95f8f9121/notedown-1.5.1.tar.gz
      
      URL: https://trac.sagemath.org/24376
      Reported by: jdemeyer
      Ticket author(s): Jeroen Demeyer
      Reviewer(s): Thierry Monteil
      4fce8f11
    • Release Manager's avatar
      Trac #24284: Exclude some functions with arg restrictions from random testing · f08412d9
      Release Manager authored
      Rare doctest errors can happen in `random_expression` if functions are
      selected that raise errors on wrong argument type. This ticket excludes
      all (up to now) known such functions from being used in
      `random_expression`.
      
      URL: https://trac.sagemath.org/24284
      Reported by: rws
      Ticket author(s): Ralf Stephan
      Reviewer(s): Volker Braun
      f08412d9
  4. 20 Dec, 2017 2 commits
  5. 19 Dec, 2017 3 commits
  6. 17 Dec, 2017 11 commits
    • David Coudert's avatar
      trac #7302: fix issue with pdf doc build · 301e7cbb
      David Coudert authored
      301e7cbb
    • Release Manager's avatar
      Trac #24380: sympy misbehavoir · 88293a40
      Release Manager authored
      Sympy polyomials with Sage real number coefficients look very broken
      {{{
      sage: import sympy, sympy.polys
      sage: x = sympy.Symbol('x')
      sage: p = sympy.polys.Poly(x**2 - 2.0)
      sage: p
      <repr(<sympy.polys.polytools.Poly at 0x7f92ca50ef18>) failed: TypeError:
      int() argument must be a string or a number, not 'NoneType'>
      sage: p.coeffs()
      TypeError                                 Traceback (most recent call
      last)
      <ipython-input-24-7e7e3b79f346> in <module>()
      ----> 1 p.coeffs()
      
      /opt/sage/local/lib/python2.7/site-packages/sympy/polys/polytools.pyc in
      coeffs(f, order)
          795
          796         """
      --> 797         return [f.rep.dom.to_sympy(c) for c in
      f.rep.coeffs(order=order)]
          798
          799     def monoms(f, order=None):
      
      /opt/sage/local/lib/python2.7/site-
      packages/sympy/polys/domains/realfield.pyc in to_sympy(self, element)
           64     def to_sympy(self, element):
           65         """Convert ``element`` to SymPy number. """
      ---> 66         return Float(element, self.dps)
           67
           68     def from_sympy(self, expr):
      
      /opt/sage/local/lib/python2.7/site-packages/sympy/core/numbers.pyc in
      __new__(cls, num, dps, prec, precision)
         1053                 _mpf_ = mpf_norm(_mpf_, precision)
         1054         else:
      -> 1055             _mpf_ = mpmath.mpf(num, prec=prec)._mpf_
         1056
         1057         # special cases
      
      /opt/sage/src/sage/libs/mpmath/ext_main.pyx in
      sage.libs.mpmath.ext_main.mpf.__init__
      (build/cythonized/sage/libs/mpmath/ext_main.c:23448)()
         1886         opts = global_opts
         1887         if kwargs:
      -> 1888             if 'prec' in kwargs: opts.prec = int(kwargs['prec'])
         1889             if 'dps'  in kwargs: opts.prec =
      libmp.dps_to_prec(int(kwargs['dps']))
         1890             if 'rounding' in kwargs: opts.rounding =
      rndmode_from_python(kwargs['rounding'])
      
      TypeError: int() argument must be a string or a number, not 'NoneType'
      }}}
      
      We backport a patch in sympy development branch. This problem was
      originally found from digging around #24378.
      
      URL: https://trac.sagemath.org/24380
      Reported by: vdelecroix
      Ticket author(s): Vincent Delecroix
      Reviewer(s): Ralf Stephan
      88293a40
    • Release Manager's avatar
      Trac #24363: Deprecate _populate_coercion_lists_(element_constructor=...) · ccfe4023
      Release Manager authored
      As an effort to reduce the number of entry points to the "element
      constructor" (see #23880), get rid of
      `_populate_coercion_lists_(element_constructor=...)`. Instead, set an
      `Element` attribute or implement an `_element_constructor_` method.
      
      Unpickling still calls
      `_populate_coercion_lists_(element_constructor=...)` and we are not
      fixing this for now.
      
      URL: https://trac.sagemath.org/24363
      Reported by: jdemeyer
      Ticket author(s): Jeroen Demeyer
      Reviewer(s): Travis Scrimshaw
      ccfe4023
    • Release Manager's avatar
      Trac #24350: SageObject.__repr__(): fall back to base class · 199fa3cc
      Release Manager authored
      `SageObject.__repr__(self)` tries to call `self._repr_()`. If that
      method does not exist, it confusingly falls back to returning
      `str(type(self))`. Instead, it would be better to fall back to
      `super().__repr__()`.
      
      URL: https://trac.sagemath.org/24350
      Reported by: jdemeyer
      Ticket author(s): Jeroen Demeyer
      Reviewer(s): Travis Scrimshaw
      199fa3cc
    • Release Manager's avatar
      Trac #24337: Remove the pickle jar · 3d8fadbf
      Release Manager authored
      As discussed in https://groups.google.com/d/msg/sage-
      devel/dZwxUCNEZWk/joIzOT0aBAAJ the pickle jar no longer serves the
      purpose that it was created for. So better remove it, as it is currently
      only an obstacle to development.
      
      I am only removing the pickle jar itself and the related tests and
      documentation. The functions `picklejar()` and `unpickle_all()` which
      deal with the pickle jar are kept for now, in case that somebody wants
      to reboot (hopefully a better version of) the pickle jar.
      
      URL: https://trac.sagemath.org/24337
      Reported by: jdemeyer
      Ticket author(s): Jeroen Demeyer
      Reviewer(s): Dima Pasechnik
      3d8fadbf
    • Release Manager's avatar
      Trac #24329: Upgrade to pynac-0.7.14 · e6fb1cf2
      Release Manager authored
      In 0.7.14:
      * fix subs regression (#24262)
      * improve inexact numerics (#24299, #24317)
      * `(x^-a)^-b --> (x^a)^b`, with `a,b numeric > 0`
      * fix `mul` of infinities (#24327)
      * implement `has_function()` (#24283)
      * use arb for inverse trig/hyperbolic funs
      * internally rename `tgamma` to `gamma` (affects print order)
      
      In 0.7.13:
       * fix `ex.coefficients()` bugs (#23545, #24147)
       * fix interface to Singular GCD (#23845)
       * fix compiler warnings
       * `asin`/`atan` enhancements (#24211)
       * `set_of_all()` function (#24176)
       * upgrade `ax_cxx_compile_stdcxx_11.m4`
      
      https://github.com/pynac/pynac/releases/download/pynac-0.7.14/pynac-0.7.
      14.tar.bz2
      
      URL: https://trac.sagemath.org/24329
      Reported by: rws
      Ticket author(s): Ralf Stephan
      Reviewer(s): Travis Scrimshaw
      e6fb1cf2
    • Release Manager's avatar
      Trac #24326: TamariIntervalPosets: failing tests in options · 23afee83
      Release Manager authored
      When the untested examples in `src/sage/combinat/interval_posets.py`
      involving `GlobalOptions` are actually tested:
      {{{
      sage -t --long src/sage/combinat/interval_posets.py
      **********************************************************************
      File "src/sage/combinat/interval_posets.py", line 2468, in
      sage.combinat.interval_posets.TamariIntervalPosets.options
      Failed example:
          ip.latex_options.color_decreasing
      Exception raised:
          Traceback (most recent call last):
            File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 515, in _run
              self.compile_and_execute(example, compiler, test.globs)
            File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 885, in compile_and_execute
              exec(compiled, globs)
            File "<doctest
      sage.combinat.interval_posets.TamariIntervalPosets.options[1]>", line 1,
      in <module>
              ip.latex_options.color_decreasing
          AttributeError: 'function' object has no attribute
      'color_decreasing'
      **********************************************************************
      File "src/sage/combinat/interval_posets.py", line 2471, in
      sage.combinat.interval_posets.TamariIntervalPosets.options
      Failed example:
          ip.latex_options.color_decreasing
      Exception raised:
          Traceback (most recent call last):
            File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 515, in _run
              self.compile_and_execute(example, compiler, test.globs)
            File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 885, in compile_and_execute
              exec(compiled, globs)
            File "<doctest
      sage.combinat.interval_posets.TamariIntervalPosets.options[3]>", line 1,
      in <module>
              ip.latex_options.color_decreasing
          AttributeError: 'function' object has no attribute
      'color_decreasing'
      **********************************************************************
      File "src/sage/combinat/interval_posets.py", line 2474, in
      sage.combinat.interval_posets.TamariIntervalPosets.options
      Failed example:
          ip.latex_options.color_decreasing
      Exception raised:
          Traceback (most recent call last):
            File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 515, in _run
              self.compile_and_execute(example, compiler, test.globs)
            File "/usr/local/src/sage-config/local/lib/python2.7/site-
      packages/sage/doctest/forker.py", line 885, in compile_and_execute
              exec(compiled, globs)
            File "<doctest
      sage.combinat.interval_posets.TamariIntervalPosets.options[5]>", line 1,
      in <module>
              ip.latex_options.color_decreasing
          AttributeError: 'function' object has no attribute
      'color_decreasing'
      **********************************************************************
      }}}
      
      URL: https://trac.sagemath.org/24326
      Reported by: jdemeyer
      Ticket author(s): Frédéric Chapoton
      Reviewer(s): Travis Scrimshaw
      23afee83
    • Release Manager's avatar
      Trac #24315: dancing links: find all solutions using given rows + find first... · b56f7ede
      Release Manager authored
      Trac #24315: dancing links: find all solutions using given rows + find first solution in parallel + doc
      
      {{{
          sage: from sage.combinat.matrices.dancing_links import dlx_solver
          sage: rows = [[0,1,2], [3,4,5], [0,1], [2,3,4,5], [0], [1,2,3,4,5]]
          sage: x = dlx_solver(rows)
          sage: x
          Dancing links solver for 6 columns and 6 rows
      }}}
      
      Return the first solution found when the computation is done in
      parallel::
      {{{
          sage: x.first_solution_found_in_parallel(ncpus=8)
          [0, 1]
      }}}
      
      Find all solutions using some specific rows::
      
      {{{
          sage: x_using_row_2 = x.restrict([2])
          sage: x_using_row_2
          Dancing links solver for 6 columns and 6 rows
          sage: list(x_using_row_2.solutions_iterator())
          [[2, 3]]
      }}}
      
      URL: https://trac.sagemath.org/24315
      Reported by: slabbe
      Ticket author(s): Sébastien Labbé
      Reviewer(s): Vincent Delecroix
      b56f7ede
    • Release Manager's avatar
      Trac #24028: Held definite integrals don't translate to SymPy · 63b1669f
      Release Manager authored
      {{{
      sage: from sympy import sympify
      sage: integral(x, x, 0, 1, hold=True)
      integrate(x, x, 0, 1)
      sage: sympify(_)
      ...
      ValueError: Invalid limits given: (x, 0, 1)
      
      sage: integral(x, x, 0, 1, hold=True)._sympy_()
      ...
      ValueError: Invalid limits given: (x, 0, 1)
      }}}
      
      URL: https://trac.sagemath.org/24028
      Reported by: rws
      Ticket author(s): Ralf Stephan
      Reviewer(s): Travis Scrimshaw
      63b1669f
    • Release Manager's avatar
      Trac #23706: allow several implementations of matrices in MatrixSpace · e70eba2a
      Release Manager authored
      The aim of this ticket is to revamp the `MatrixSpace` constructor in
      order to be able to choose the implementation.
      
      For example, with the attached branch one can have access to 2
      implementations of integer matrices
      {{{
      sage: MatrixSpace(ZZ, 3, implementation='flint')
      Full MatrixSpace of 3 by 3 dense matrices over Integer Ring
      sage: MatrixSpace(ZZ, 3, implementation='generic')
      Full MatrixSpace of 3 by 3 dense matrices over Integer Ring (using
      Matrix_generic_dense)
      }}}
      
      One important change is the move of the method `_get_matrix_class` of
      `MatrixSpace` as an independent function.
      
      A problem arose with `CartanMatrix` (in
      `sage/combinat/root_system/cartan_matrix.py`). The class `CartanMatrix`
      inherits from `Matrix_integer_sparse` but does not properly redefines
      the parent. As a consequence of the changes here, many matrix operations
      are not valid anymore for inherited types (mostly submatrices operations
      such as `__getitem__` with slices or `stack`). A fix is provided by
      defining `CartanMatrix.matrix_space`.
      
      follow up: #23714 (implementation of gap matrices)
      
      URL: https://trac.sagemath.org/23706
      Reported by: vdelecroix
      Ticket author(s): Vincent Delecroix
      Reviewer(s): Jean-Philippe Labbé, Travis Scrimshaw
      e70eba2a
    • Release Manager's avatar
      Trac #24375: Fix deprecation of sage.matrix.matrix · d18747bb
      Release Manager authored
      URL: https://trac.sagemath.org/24375
      Reported by: jdemeyer
      Ticket author(s): Jeroen Demeyer
      Reviewer(s): Vincent Delecroix
      d18747bb
  7. 16 Dec, 2017 6 commits
  8. 15 Dec, 2017 4 commits