rm BernsteinElement again

src/bernstein.jl

@@ -5,32 +5,6 @@ using dg1d
 using LinearAlgebra
 
 
-struct BernsteinElement
-  Npts::Int64
-  N::Int64
-  x::Vector{Float64}
-  M::Matrix{Float64}
-  invM::Matrix{Float64}
-  S::Matrix{Float64}
-  MDM::Matrix{Float64} # = (M^-1 D^T M) = M^-1 S^T
-  MB_lhs::Vector{Float64} # = M^(-1) Bn(-1)
-  MB_rhs::Vector{Float64} # = M^(-1) Bn(-1)
-end
-
-
-function BernsteinElement(Npts)
-  N = Npts-1
-  x = collect(range(-1.0,1.0,length=Npts))
-  M = mass_matrix(Npts)
-  invM = inv(M)
-  S = stiffness_matrix(Npts)
-  MDM = invM * transpose(S)
-  MB_lhs = invM[:,1]   # because Bn(-1) = δ(n,1)
-  MB_rhs = invM[:,end] # because Bn(1) = δ(n,Npts)
-  return BernsteinElement(Npts, N, x, M, invM, S, MDM, MB_lhs, MB_rhs)
-end
-
-
 # Normalized so that bernstein_polynomial(-1,0,N) == bernstein_polynomial(1,N,N) == 1
 function bernstein_polynomial(x, n::Integer, N::Integer)
   return binomial(N, n) / 2^N * (1 + x)^n * (1 - x)^(N-n)