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IntervalConstraintProgramming.jl

v0.14

New API using Symbolics

  • The public API has been completely rewritten
  • The previous macros such as @constraint have been removed
  • The API now uses symbolic variables from Symbolics.jl
  • See the README for usage examples

v0.11

Minimum Julia version

  • The minimum Julia version supported is now Julia 1.1

Functionality's are added

  • Contractor can be make by just function name only
  • New type of Contractor named as BasicContractor can be construct which only contain fields of useful data.

v0.10

Minimum Julia version

  • The minimum Julia version supported is now Julia 1.0.

New Dependency added: ModelingToolkit.jl

  • By the help of ModelingToolkit.jl we can construct contractors and separators without the use of macros.

v0.9

Minimum Julia version

  • The minimum Julia version supported is now Julia 0.7. The package is fully compatible with Julia 1.0.

Functionality removed

  • Pavings are now immutable, so refine! no longer works.

v0.8

Minimum Julia version

  • The minimum Julia version required has been bumped to 0.6; this will be the last release to support 0.6.

v0.7

New dependency: IntervalContractors.jl

The reverse functions used for constraint propagation have been factored out into the IntervalContractors.jl package.

v0.6

Minimum Julia version

  • The minimum Julia version required has been bumped to 0.5

API change

  • Objects such as Contractor have been simplified by putting functions and the code that generated them inside a GeneratedFunction type

Dependency change

  • The dependency on ValidatedNumerics.jl has been replaced by IntervalArithmetic.jl and IntervalRootFinding.jl

v0.5

  • API change: Contractors now have their dimension as a type parameter
  • Refactoring for type stability
  • Removed reference to FixedSizeArrays; everything (including bisect) is now provided by IntervalArithmetic
  • Removed all functions acting directly on Intervals and IntervalBoxes that should belong to IntervalArithmetic
  • Generated code uses simpler symbols
  • Example notebooks have been split out into a separate repository: https://github.com/dpsanders/IntervalConstraintProgrammingNotebooks

v0.4

  • @function f(x) = 4x defines a function
  • Functions may be used inside constraints
  • Functions may be iterated
  • Functions may be multi-dimensional
  • Local variables may be introduced
  • Simple plotting solution for the results of pave using Plots.jl recipes (via IntervalArithmetic.jl):
using Plots
gr()  # preferred (fast) backed for `Plots.jl`
plot(paving.inner)
plot!(paving.boundary)
  • Major internals rewrite
  • Unary minus and power_rev with odd powers now work correctly
  • Examples updated
  • Basic documentation using Documenter.jl

v0.3

  • Renamed setinverse to pave

  • External constants may now be used in @constraint, e.g.

a, b = 1, 2
C = @constraint (x-$a)^2 + (y-$b)^2

The constraint will not change if the constants are changed, but may be updated (changed) by calling the same @constraint command again.

v0.2

  • setinverse now returns an object of type Paving #17

  • refine! function added to refine an existing Paving to a lower tolerance #17

  • vol has been renamed to Vol, and is applied directly to a Paving object.

  • Internal variable names in generated code are now of form _z_1_ instead of z1 to eliminate collisions with user-defined variables #20

v0.1.1

  • Add sqrtRev reverse-mode function

  • Add solid torus example, including 3D visualization with GLVisualize

  • Tests pass with Julia 0.5

v0.1

  • Basic functionality working (separators and setinverse)

  • Vol function calculates the Volume of the set produced by setinverse; returns objects of type Vol parametrised by the dimension $d$ of the set (i.e. $d$-dimensional Lebesgue measure), which are interval ranges