Merge pull request #706 from dpsanders/dps/set_operations

Register set operations

Author: ChrisRackauckas

src/extra_functions.jl

@@ -39,6 +39,13 @@ ModelingToolkit.@register Distributions.quantile(dist,x)
 ModelingToolkit.@register Distributions.Uniform(mu,sigma)
 ModelingToolkit.@register Distributions.Normal(mu,sigma)
 
+@register ∈(x::Num, y::AbstractArray)
+@register ∪(x, y)
+@register ∩(x, y)
+@register ∨(x, y)
+@register ∧(x, y)
+@register ⊆(x, y)
+
 function LinearAlgebra.det(A::AbstractMatrix{<:Num}; laplace=true)
     if laplace
         n = LinearAlgebra.checksquare(A)
@@ -67,4 +74,4 @@ function LinearAlgebra.det(A::AbstractMatrix{<:Num}; laplace=true)
         end
         return det(lu(A; check = false))
     end
-end
+end