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UltrasphericalJacobiRadauMatrix

Ultraspherical Radau matrix for Jacobi polynomials.

Interface​

INTERFACE
  MODULE PURE SUBROUTINE UltrasphericalJacobiRadauMatrix(a, n, lambda, D, E, &
    & alphaCoeff, betaCoeff)
    REAL(DFP), INTENT(IN) :: a
    !! one of the end of the domain
    INTEGER(I4B), INTENT(IN) :: n
    !! n should be greater than or equal to 1
    REAL(DFP), INTENT(IN) :: lambda
    !! lambda should be greater than -0.5
    REAL(DFP), INTENT(OUT) :: D(:)
    !! the size should be 1:n+1
    REAL(DFP), INTENT(OUT) :: E(:)
    !! the size should be 1:n
    REAL(DFP), OPTIONAL, INTENT(OUT) :: alphaCoeff(0:)
    REAL(DFP), OPTIONAL, INTENT(OUT) :: betaCoeff(0:)
  END SUBROUTINE UltrasphericalJacobiRadauMatrix
END INTERFACE