UltrasphericalAlpha

Recurrence coeff for Ultraspherical polynomial.

Interface

܀ Interface

INTERFACE
  MODULE PURE FUNCTION UltrasphericalAlpha(n, lambda) RESULT(ans)
    INTEGER(I4B), INTENT(IN) :: n
    !! order of Ultraspherical polynomial
    REAL(DFP), INTENT(IN) :: lambda
    !! lambda should be greater than -0.5
    REAL(DFP) :: ans
    !! answer
  END FUNCTION UltrasphericalAlpha
END INTERFACE

️܀ See example

program main
use easifembase
implicit none
CALL Display(UltrasphericalAlpha(n=5, lambda=0.5_DFP), "ans:" )
CALL Display(UltrasphericalBeta(n=5, lambda=0.5_DFP), "ans:" )
end program main

results

ans:0.00000
ans:0.252525

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