Changes between Version 17 and Version 20 of Ticket #20877


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Timestamp:
10/01/16 21:26:19 (5 years ago)
Author:
mkoeppe
Comment:

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  • Ticket #20877

    • Property Cc jhpalmieri kcrisman paulmasson added
    • Property Summary changed from Meta-ticket: Polyhedral complexes, piecewise functions of several variables, periodic piecewise functions to Meta-ticket: Piecewise functions, polyhedral complexes, piecewise functions of several variables, periodic piecewise functions
  • Ticket #20877 – Description

    v17 v20  
    1 This meta-ticket will implement piecewise functions of several real variables.
     1This is a meta-ticket about piecewise functions.
     2
     3Piecewise functions of 1 variable:
     4 - #1773: piecewise functions and integration / arithmetic do not play well together
     5 - #8603: Partial sums are off for Fourier series of piecewise functions
     6 - #11225: improve piecewise plotting
     7 - #6895: Detect discontinuities when plotting the ceil function
     8 - #10597: Riemann sums, added trapezoid option
     9 - #9935: Make a symbolic mod function
     10 - #21232: Fractional part function {x}
     11 - #21274: frac(x) immediate simplifications
     12 - #21215: Periodic piecewise functions
     13 - #21412: Convert piecewise functions to SymPy
     14 - #21618: plot in piecewise regression (?)
     15
     16`RealSet`s, underlying the current implementation of `piecewise`:
     17 - #16063: Unify the classes `RealSet` and `UnionOfIntervals`
     18 - #21249: `RealSet`s fail their `TestSuite`: `_test_category`, `_test_pickling`
     19 - #21242: Allow initializing `RealSet` from `RealInterval` or `RBF` elements (dup: #17791)
     20 - #21243: `RealSet`: add `closure` and `interior` methods
     21 - #21277: `sage_input` for `RealSet` and `piecewise`
     22
     23As a generalization, this meta-ticket will implement piecewise functions of several real variables.
    224The pieces are polyhedral complexes (not necessarily triangulations) or more generally polyhedral dissections (i.e., not necessarily face-to-face).
    325In my application, the functions will be piecewise linear, possibly discontinuous; but the implementation should be general enough for splines.
     
    1234 - #18197: Add CGAL package
    1335
    14 `RealSet`s:
    15  - #16063: Unify the classes `RealSet` and `UnionOfIntervals`
    16  - #21249: `RealSet`s fail their `TestSuite`: `_test_category`, `_test_pickling`
    17  - #21242: Allow initializing `RealSet` from `RealInterval` or `RBF` elements (dup: #17791)
    18  - #21243: `RealSet`: add `closure` and `interior` methods
    19  - #21277: `sage_input` for `RealSet` and `piecewise`
    20 
    21 Piecewise functions of 1 variable:
    22  - #1773: piecewise functions and integration / arithmetic do not play well together
    23  - #8603: Partial sums are off for Fourier series of piecewise functions
    24  - #11225: improve piecewise plotting
    25  - #6895: Detect discontinuities when plotting the ceil function
    26  - #10597: Riemann sums, added trapezoid option
    27  - #9935: Make a symbolic mod function
    28  - #21232: Fractional part function {x}
    29  - #21274: frac(x) immediate simplifications
    30  - #21215: Periodic piecewise functions
    31  - #21412: Convert piecewise functions to SymPy