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News

0.22.4

  • no longer generate the ITF1788 test suite automatically, no longer write a log for the warnings of the tests (cf. PR #607)
  • add plotting recipes as an extension (cf. PR #608)

0.22.3

  • add sind, cosd and sincosd
  • pointwise boolean functions are re-introduced (cf. PR #604), namely: iszero, isone, isinteger, and ==(::Interval, ::Number)/==(::Number, ::Interval)

0.22

Major changes since 0.20 and 0.21:

  • interval structures:

    • new bare (i.e. no decorations) interval structure BareInterval, which is not a subtype of Real
    • Interval is now decorated (DecoratedInterval is removed) and has a new boolean field isguaranteed; the Interval type is a subtype of Real
    • IntervalBox is removed; multi-dimensional intervals are instances of AbstratcVector{<:Interval}

  • constructors:

    • @floatinterval and @biginterval are removed; @interval accepts a bound type as its first parameter
    • the recommended interval type is Interval and its constructors are interval, @interval, parse(T<:Interval, string), I"string". A bareinterval constructor is also available for BareInterval, as well as parse(T<:BareInterval, string)
    • warning is prompted when trying to construct invalid intervals

  • conversion/promotion:

    • numbers cannot be converted to BareInterval to prevent silent errors
    • numbers can be converted to Interval but the isguaranteed field is set to false to indicate that an error may have happened

  • unicode alias (e.g. .., ±, ∅, ℝ, etc.) are now contained in an unexported submodule Symbols to prevent conflicts (e.g. .. is exported by Makie.jl)

  • display:

    • fixed previous matrix alignment issues
    • setformat has been renaed setdisplay; the display format :standard has been renamed :infsup

  • set-based flavor is supported; some ground work on a flavor mechanism has been laid out to support others, e.g. cset flavor

  • partial support for Complex{<:Interval}; some elementary functions are still missing

  • ambiguous boolean Base functions (e.g. ==, issubset, <, etc.) are no longer overloaded and throw an error; new counterparts methods have been defined (e.g. isequal_interval, issubset_interval, etc.)

tests:

  • all non-"rev" tests from ITF1788 are successful (except a broken test for the dot function, which should be irrelevant to interval arithmetic)
  • the ITF1788 test suite is automatically generated during CI