Opened 5 years ago
Last modified 2 weeks ago
#20877 new task
Meta-ticket: Polyhedral complexes, piecewise functions of several variables, periodic piecewise functions — at Version 12
Reported by: | mkoeppe | Owned by: | |
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Priority: | major | Milestone: | sage-9.4 |
Component: | geometry | Keywords: | piecewise |
Cc: | tscrim, rws, vbraun, vdelecroix, jhpalmieri, kcrisman, paulmasson, tmonteil, moritz, jipilab | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by )
This meta-ticket will implement piecewise functions of several real variables. The pieces are polyhedral complexes (not necessarily triangulations) or more generally polyhedral dissections (i.e., not necessarily face-to-face). In my application, the functions will be piecewise linear, possibly discontinuous; but the implementation should be general enough for splines.
Discussion welcome, in particular in regard to how this code should interact with the existing classes for abstract complexes (CW complexes) and PointConfiguration
.
- #20878:
PointConfiguration
: Addplot
method - #20879: Expose PPL's Not-Necessarily-Closed Polyhedra using Sage Polyhedra -- could play the same role as half-open intervals do in the context of the new piecewise functions.
- #20892: package polymake 3.0
- #21151: Update TOPCOM to 0.17.7, disable outdated libsoplex support
- #10777: Implement CombinatorialPolyhedron?
RealSet
s:
- #16063: Unify the classes
RealSet
andUnionOfIntervals
- #21249: RealSets? fail their TestSuite?: _test_category, _test_pickling
- #21242: Allow initializing RealSet? from RealInterval? or RBF elements
- #21243: RealSet?: add closure and interior methods
Piecewise functions of 1 variable:
- #1773: piecewise functions and integration / arithmetic do not play well together
- #8603: Partial sums are off for Fourier series of piecewise functions
- #11225: improve piecewise plotting
- #6895: Detect discontinuities when plotting the ceil function
- #10597: Riemann sums, added trapezoid option
- #9935: Make a symbolic mod function
- #21232: Fractional part function {x}
- #21215: Periodic piecewise functions
Change History (12)
comment:1 Changed 5 years ago by
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comment:8 Changed 5 years ago by
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- Summary changed from Meta-ticket: Polyhedral complexes, piecewise functions of several variables to Meta-ticket: Polyhedral complexes, piecewise functions of several variables, periodic piecewise functions
comment:9 Changed 5 years ago by
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comment:10 Changed 5 years ago by
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comment:11 Changed 5 years ago by
- Cc rws vbraun vdelecroix added
- Description modified (diff)
- Milestone changed from sage-7.3 to sage-7.4
comment:12 Changed 5 years ago by
- Description modified (diff)
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