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* Beta 0.22
* Remove `Random`
* Update CI
* Fix jldoctest in display.jl
* More fixes of jldoctest
* One more fix
* Fix propagation of `isguaranteed`
* Improve tests
* Fix `isguaranteed` for midpoint constructor
* Small cleanup
* Add more ForwardDiff related tests
* Revised files
* Update LICENSE.md
* Re-work unexported constructor `atomic`
* Improve docstring for powers
* Fix typo
* Revive `@interval`; conversion of `AbstratcIrrational` is guaranteed
* Cleanup power.jl
* Rework rounding
* Fix typo
* Remove `FastRounding`, make `:accurate` the `:fast` rounding option
* Fix decoration for `^` and `fastpow`
* Fix docstring
* Cleanup
* Update NEWS.md
* Add convient alias
* Do not use trivial decoration for `mince` and `bisect`
* Fix `interiordiff`
* Add `Fix2` mechanism for `isequal_interval` and `in_interval`
* Fix `atomic` for `BigFloat`
* Fix tests
* Fix docstring
* Rename `^` to `pow`; redefine a new `^` method
* Fix docstrings
* Remove `scaled_mid`
* Fix docstrings
* Remove `SetRounding`
* Small fixes
* Implement a configuration mechanism for `^`
* Remove support for `IntervalRounding{:fast}`
* Use `fastpow` as the default for `^`
* Add `fastpown`
* Fix `hypot`
* Fix decoration and construction edge case
* Cleanup
* Update compat and remove old files
* Fix typo
* Export `fastpown`
* Fix `fastpown`
* Do not use `@interval`
* Fix `@interval` with `Rational{Int}` bound type
* Improve `parse` performance
* Add license of ITF1788 test suite
* Add `one`/`zero` method and propagates `isguaranteed`- Loading branch information
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| - 'nightly' | ||
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| # What's new in `IntervalArithmetic.jl` | ||
| # News | ||
|
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| ## v0.17 | ||
| ## master | ||
|
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| ### Supported versions of Julia | ||
| - The package now supports only Julia v1.3 and later. | ||
| ## 0.22 | ||
|
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| ### Breaking changes | ||
| - Changed from using `FastRounding.jl` to `RoundingEmulator.jl` for the default rounding mode. [#370](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/370) | ||
| Major changes since 0.20 and 0.21: | ||
|
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||
| - 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` | ||
|
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| ## v0.15 | ||
| - 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 | ||
|
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| ### Supported versions of Julia | ||
| - Julia 0.6 is no longer supported. The package is now fully compatible with Julia 0.7 and 1.0. [#201](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/201) | ||
| - 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 | ||
|
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||
| ### Breaking changes | ||
| - `showall` has been removed from Julia. We now export the function `showfull` instead. [#203](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/203 | ||
| - unicode alias (e.g. `..`, `±`, `∅`, `ℝ`, etc.) are now contained in an unexported submodule `Symbols` to prevent conflicts (e.g. `..` is exported by [Makie.jl](https://github.com/MakieOrg/Makie.jl)) | ||
|
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| - In keeping with the change to base Julia, `atan2` has been replaced by the 2-argument method of `atan`. [#192](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/192) | ||
| - display: | ||
| - fixed previous matrix alignment issues | ||
| - `setformat` has been renaed `setdisplay`; the display format `:standard` has been renamed `:infsup` | ||
|
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||
| ### First contributions | ||
| Caroline Wormell and Mohamed Tarek made first contributions to the package. | ||
| - set-based flavor is supported; some ground work on a flavor mechanism has been laid out to support others, e.g. cset flavor | ||
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| - partial support for `Complex{<:Interval}`; some elementary functions are still missing | ||
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| ## v0.14 | ||
| - 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.) | ||
|
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||
| ### Breaking changes | ||
| - `IntervalBox` is no longer a subtype of `StaticVector` or of `AbstractArray`, | ||
| but rather contains an `SVector` of `Interval`s. The internal `SVector` of an `IntervalBox` `X` is available as `X.v`. [#152](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/152) | ||
|
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||
| ### New functions | ||
| - Various functions, including `bisect`, were moved here from `IntervalRootFinding.jl`. [#160](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/160) | ||
|
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||
| - The set operations `⊂`, `⊃` and `⊇` were added [#154](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/154) | ||
|
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| ### Supported versions of Julia | ||
| - This is slated to be the last minor release supporting Julia 0.6. | ||
|
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| ### First contributions | ||
| - @mforets and @Kolaru made first contributions to the package. | ||
|
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| ## v0.13 | ||
|
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| ### Breaking changes | ||
| - `convert(Interval{T}, x::T)` no longer does any rounding: it creates | ||
| the thin (zero-width) interval `[x, x]`. [#114](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/114) | ||
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| Note that this implies that numbers are no longer rounded in operations combining them with intervals, such as `0.1 + interval(0.2, 0.3)`, since `0.1` is `convert`ed to an `Interval` by Julia's promotion machinery. | ||
|
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| ### New functions | ||
| - The unexported function `IntervalArithmetic.atomic(Interval{T}, x)` creates the smallest atomic interval obtained by directed rounding, treating `x` as representing a real number (the old behaviour | ||
| of `convert`). [#114](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/114) | ||
|
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| ### Performance | ||
| - `sin` and `cos` are over 6 times faster. [#117](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/117) | ||
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| - Various operations with `IntervalBox`es are faster, due to consistent use of | ||
| broadcasting. [#106](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/114) | ||
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|
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| ### Documentation | ||
| - Documentation about interval arithmetic in general and construction of intervals | ||
| was improved. | ||
|
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| ### First contributions | ||
| - @tkoolen and @eeshan9815 made their first contributions to the package. Many thanks! | ||
|
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| ## v0.12 | ||
|
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| ### API changes: | ||
|
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| - The constructor `Interval(a, b)` has **had checks removed**, so **should not be used directly**; use `interval(a, b)` instead. This is for performance reasons. [#26](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/26) | ||
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| - The changes to `a..b` and `a±b` were reverted; these operations are now slow again, but give the narrowest possible interval when interpreting `a` and `b` as the human version (rather than the machine version). E.g. `0.3` is treated as `3/10`, not the exactly-representable floating-point number closest to 0.3. [#97](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/97) | ||
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| - Constructor `IntervalBox(II, Val{n})` added to easily make `IntervalBox`es that are `n` copies of a given interval [#79](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/79) | ||
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| ## v0.11 | ||
|
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| ### Supported versions of Julia | ||
| - The package now supports only Julia v0.6 and later. | ||
| The only change in this version is to remove code supporting previous versions and | ||
| update syntax, e.g. `immutable` -> `struct`. | ||
|
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| ## v0.10 | ||
|
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| ### Supported versions of Julia | ||
| - This is the last version that will support Julia v0.5. | ||
|
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| ### Performance | ||
|
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| - Between 2x and 3x speedup for basic arithmetic operations, using [FastRounding.jl](https://github.com/JeffreySarnoff/FastRounding.jl) [#25](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/25) | ||
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| - A fast version of the power function is available, with the name `pow` | ||
| [#42](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/42) | ||
|
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| ### API changes: | ||
|
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| - The `Interval` rounding mode may be changed *only on Julia 0.6 and later* using e.g. | ||
| `setrounding(Interval, :accurate)`. The mode on Julia 0.5 is fixed to `:tight` | ||
| [#25](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/25) | ||
|
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| - Renamed `infimum` -> `inf` and `supremum` -> `sup` [#48](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/48) | ||
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| - The operators `..` and `±` for interval creation are now fast, but may give results that are slightly wider | ||
| [#37]([#30](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/30) | ||
|
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| ### v0.9.1 | ||
|
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| #### Docs | ||
|
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| - Docs have been moved to use `Documenter.jl` [#31](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/31) | ||
|
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| #### Bug fixes | ||
| - Bug fix for `mid` [#24](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/24) | ||
|
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| - Bug fix for `tan` [#22](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/22) | ||
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| #### API changes | ||
|
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| - `mid` of `IntervalBox` now returns an `SVector` [#30](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/30) | ||
|
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| #### Dependency changes | ||
| - The dependency on `ForwardDiff` has been removed [#13](https://github.com/JuliaIntervals/IntervalArithmetic.jl/pull/13) | ||
|
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| ## v0.9 | ||
| - The former `ValidatedNumerics.jl` package has been split into `ValidatedNumerics.jl` and `IntervalRootFinding.jl`. | ||
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| `ValidatedNumerics.jl` will now be a meta-package that re-exports both of these packages. | ||
|
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| ## v0.8 | ||
|
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| ### Supported versions of Julia | ||
| - Julia v0.5 and higher are supported | ||
|
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| ### Breaking API changes | ||
| - **Only on Julia 0.6**, it is now possible to change the interval rounding type again, using `setrounding(Interval, :accurate)`; #220 | ||
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| - Changed `setdisplay` to `setformat`. Added `@format` macro to simplify interface, e.g. | ||
| `@format standard 5 true`; #251 | ||
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| - `mid` is now IEEE-1788 compliant, which changes the behaviour for semi-infinite intervals #253 | ||
|
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| ### Other | ||
| - Changed from using `FixedSizeArrays.jl` to `StaticArrays.jl` for `IntervalBox`; | ||
| this should be invisible to the end user #245 | ||
|
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| - Fixed a bug in 1D interval Newton; #254 | ||
|
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| ## v0.7 | ||
|
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| ### End of support for Julia v0.4 | ||
| - v0.7 is the last version to include support for Julia v0.4 | ||
|
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| ### Breaking API changes | ||
| - Deprecate `displaymode`, replacing it with `setdisplay`, with simplified syntax #210: | ||
| ``` | ||
| setdisplay(:full) | ||
| ``` | ||
|
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| ### Added features | ||
| - Fast integer power function `pow` #208 | ||
| - `parse(Interval, string)` (extends and exports previously internal function) #215 | ||
| - `bisect` function in `ValidatedNumerics.RootFinding` for bisecting `Interval`s and `IntervalBox`es #217 | ||
|
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| ### Other | ||
| - Many tests use `Test` instead of `FactCheck` #205 | ||
| - Miscellaneous bugfixes | ||
|
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| ## v0.6 | ||
| - Add a plot recipe for (only) 2D `IntervalBox`es using `RecipesBase.jl`. | ||
| This enables plotting using `Plots.jl`: an individual `IntervalBox` `X` using `plot(X)`, | ||
| and a `Vector` of them using `plot([X, Y])` | ||
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| - Rewritten rounding functionality which gives type-stable interval functions, and hence | ||
| better performance | ||
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| - `(1..2) × (3..4)` syntax for constructing `IntervalBox`es | ||
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| - `@interval` now always returns an `Interval`. | ||
| Before e.g. `@interval mid(X)` for `X` an interval returned a number instead. | ||
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| ## v0.5 | ||
| - Root finding has been moved into a separate submodule | ||
| [#154](https://github.com/dpsanders/ValidatedNumeris.jl/pull/154). | ||
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| New usage: | ||
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| using ValidatedNumerics | ||
| RootFinding.newton(...) | ||
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| or | ||
| using ValidatedNumerics | ||
| using ValidatedNumerics.RootFinding | ||
| newton(...) | ||
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| - Neighbouring root intervals are merged in the Newton and Krawczyk methods: [#156](https://github.com/dpsanders/ValidatedNumerics.jl/pull/156) | ||
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| ### v0.4.3 | ||
| - Fix display of intervals with different setdisplay options; [#146](https://github.com/dpsanders/ValidatedNumerics.jl/pull/146) | ||
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| - Add emptyinterval(x::IntervalBox); [#145](https://github.com/dpsanders/ValidatedNumerics.jl/pull/145) | ||
|
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| ### v0.4.2 | ||
| - Add `setdiff` for n-dimensional `IntervalBox`es; [#144](https://github.com/dpsanders/ValidatedNumerics.jl/pull/144) | ||
|
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| ### v0.4.1 | ||
| - Fix incompatibility for `IntervalBox` with latest tagged versions of `FixedSizeArrays.jl` | ||
| - Add `setdiff` for 2D `IntervalBox`es [#143](https://github.com/dpsanders/ValidatedNumerics.jl/pull/143) | ||
| - Make integer powers of complex intervals work [#142](https://github.com/dpsanders/ValidatedNumerics.jl/pull/142) | ||
|
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| ## v0.4 | ||
| - Added decorated intervals [#112](https://github.com/dpsanders/ValidatedNumerics.jl/pull/112) | ||
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| - Added `setdisplay` function for modifying how intervals are displayed [#115](https://github.com/dpsanders/ValidatedNumerics.jl/pull/115) | ||
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| - Added `±` syntax for creating intervals as e.g. `1.3 ± 0.1` [#116](https://github.com/dpsanders/ValidatedNumerics.jl/pull/116) | ||
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| ## v0.3 | ||
|
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| - [Added `IntervalBox` type](https://github.com/dpsanders/ValidatedNumerics.jl/pull/88), representing a multi-dimensional (hyper-)box as a `FixedSizeArray` of `Interval`s. | ||
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| - Internal clean-up, including rewriting what was the internal, unexported `make_interval` | ||
| function as (exported) methods for `convert`, so that you can now write e.g. | ||
| `convert(Interval{Float64}, "0.1")`; this is used by `@interval`. | ||
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| - [Replaced](https://github.com/dpsanders/ValidatedNumerics.jl/pull/101) the simple automatic differentiation functionality that was part of | ||
| the package with the sophisticated `ForwardDiff` package. | ||
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| - [Unified](https://github.com/dpsanders/ValidatedNumerics.jl/pull/102) the names of the | ||
| precision and rounding functions with the | ||
| new, [flexible names](https://github.com/JuliaLang/julia/pull/13232) in Julia v0.5: | ||
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| - `set_interval_precision(x)` -> `setprecision(Interval, x)`. | ||
| - `get_interval_precision()` -> `precision(Interval)` | ||
| - `set_interval_rounding(x)` -> `setrounding(Interval, x)` | ||
| - `get_interval_rounding()` -> `rounding(Interval)` | ||
|
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| - The ITF1788 test suite has been temporarily disabled on Julia v0.5 due to a | ||
| performance regression in parsing long test suites. | ||
|
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| - `convert(Interval, x)` has been removed. You must specify the element type of | ||
| the interval, e.g. `convert(Interval{Float64}, 0.1)` | ||
|
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| ## v0.2 | ||
|
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| - Significant progress has been made towards conformance with the [IEEE 1788-2015 - IEEE Standard for Interval Arithmetic] (https://standards.ieee.org/findstds/standard/1788-2015.html), with many functions added, including hyperbolic functions (`cosh`, etc.) | ||
|
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| - The [CRlibm.jl](https://github.com/dpsanders/CRlibm.jl) (Correctly-Rounded mathematics library) is now used to obtain correctly-rounded elementary functions (`sin`, `exp`, etc.) for `Float64` arguments. Functions that are not available in `CRlibm.jl` are taken from MPFR, and are hence slower; note that this includes the `^` function. | ||
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| - Julia versions of files from the comprehensive [ITF1788 test suite](https://github.com/oheim/ITF1788) by Marco Nehmeier and Maximilian Kiesner have been included in our own test suite, thanks to the efforts of Oliver Heimlich. All relevant tests pass. | ||
|
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| - Documentation has been enhanced. | ||
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| - v0.2 **supports only Julia v0.4 and later**. | ||
|
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| - Changes are detailed in [issue #31](https://github.com/dpsanders/ValidatedNumerics.jl/issues/31) | ||
|
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| ### 0.1.3 | ||
|
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| - Improvements towards conformance with the [IEEE-1788](https://standards.ieee.org/findstds/standard/1788-2015.html) standard for Interval Arithmetic: | ||
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| - New `special_intervals.jl` file, with definitions of `emptyinterval`, `RR`, `nai` and related functions. Add new interval functions (`<=`, `radius`, `precedes`, `strictprecedes`, `≺`, etc). | ||
|
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| - Control rounding tighter for arithmetic operations; `*`, `inv` and `/` have been rewritten; this includes changes in `make_interval` and `convert` to get consistent behavior. These functions pass the corresponding tests in the [ITF1788](https://github.com/oheim/ITF1788) test suite. | ||
| - Deprecate the use of `⊊` in favor of `isinterior` (`⪽`). | ||
|
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| **Important notice:** This is the **last version** of the package that | ||
| supports Julia v0.3. | ||
|
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| ### 0.1.2 | ||
|
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| - Increase test coverage and corresponding bug fixes | ||
| - Enable pre-compilation for Julia v0.4 | ||
|
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| ### 0.1.1 | ||
|
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| - Re-enable tests for `Interval{Float64}` (`e0f3c1506f`) | ||
|
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| ## v0.1 | ||
|
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| v0.1 is the first public release of the package. | ||
|
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| ### Interval arithmetic | ||
| - Two methods for interval rounding are available: | ||
| (i) narrow/slow (which uses hardware rounding mode changes for `Float64` intervals, and (ii) wide/fast (which does not change the rounding mode) | ||
| - The current interval precision and rounding mode are stored in the `parameters` object | ||
| - The macro `@interval` generates intervals based on the current interval precision | ||
| - Trigonometric functions are "nearly" rigorous (for `Float64` intervals, correct rounding is not currently guaranteed) | ||
| - Inverse trigonometric functions are available | ||
| - Intervals of `BigFloat`s are displayed with the precision as a subscript numeral | ||
|
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| ### Root finding | ||
| - Newton and Krawczyk methods are implemented for rigorously finding simple roots of 1D real functions | ||
| - Stringent tests are performed, with various precision settings ( Float64` and `BigFloat ) | ||
| tests: | ||
| - all non-"rev" tests from [ITF1788](https://github.com/oheim/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 |
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