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JacobiJacobiMatrix

Jacobi matrix for Jacobi polynomials.

INTERFACE
  MODULE PURE SUBROUTINE JacobiJacobiMatrix(n, alpha, beta, D, E, &
      & alphaCoeff, betaCoeff)
    INTEGER(I4B), INTENT(IN) :: n
    !! n should be greater than or equal to 1
    REAL(DFP), INTENT(IN) :: alpha
    !! alpha of jacobu poly
    REAL(DFP), INTENT(IN) :: beta
    !! beta of jacobi poly
    REAL(DFP), INTENT(OUT) :: D(:)
    !! the size should be 1:n
    REAL(DFP), INTENT(OUT) :: E(:)
    !! the size should be 1:n-1
    REAL(DFP), OPTIONAL, INTENT(OUT) :: alphaCoeff(0:)
    REAL(DFP), OPTIONAL, INTENT(OUT) :: betaCoeff(0:)
  END SUBROUTINE JacobiJacobiMatrix
END INTERFACE

Examples​