Merge pull request #4 from putianyi889/master

Update Chebyshev.jl

Author: dlfivefifty

src/Spaces/Chebyshev/Chebyshev.jl

@@ -25,6 +25,14 @@ Chebyshev(d) = Chebyshev(Domain(d))
 NormalizedChebyshev() = NormalizedPolynomialSpace(Chebyshev())
 NormalizedChebyshev(d) = NormalizedPolynomialSpace(Chebyshev(d))
 
+function Base.getproperty(S::Chebyshev{<:Any,<:Any},v::Symbol)
+    if v==:b || v==:a
+        -0.5
+    else
+        getfield(S,v)
+    end
+end
+
 normalization(::Type{T}, sp::Chebyshev, k::Int) where T = T(π)/(2-FastTransforms.δ(k,0))
 
 Space(d::SegmentDomain) = Chebyshev(d)

test/ChebyshevTest.jl

@@ -202,4 +202,10 @@ using ApproxFunOrthogonalPolynomials, ApproxFunBase, LinearAlgebra, Test
         f = 1/(1 + 25*(x^2))
         @test norm(f, Inf) ≈ 1.0
     end
+    
+    @testset "Jacobi" begin
+        S=Chebyshev()
+        @test S.a==-0.5
+        @test S.b==-0.5
+    end
 end