lit
    JINRLIB

DBESJ0, DBESJ1, DBESY0, DBESY1 - J0, J1, Y0, Y1

C312

: K.S.Koelbig :

popaa ce ecce J0(X), J1(X), Y0(X), Y1(X) eceoo X
(X>0 Y0(X), Y1(X) ).

:

: - FUNCTION
: - DBESJ0,DBESJ1,DBESY0,DBESY1

:

CALL DBESJ0(X):
   DBESJ0(X) ae aee J0(X),

CALL DBESJ1(X):
   DBESJ1(X) ae aee J1(X),

CALL DBESY0(X):
   DBESY0(X) ae aee Y0(X),

CALL DBESY1(X):
   DBESY1(X) ae aee Y1(X).

ea DBESJ0,DBESJ1,DBESY0,DBESY1 ocac oepaopo DOUBLE PRECISION. X REAL*8.

:

coec apoca cee pa eea.

:

DBESJ0,DBESJ1,DBESY0,DBESY1 o ooc.
- 14 ao, - .

Opae:

X>0 Y0 Y1.

Ec DBESY0 DBESY1 aec c X<=0, o pea oaaec pa , cooee o e pocxo opa a popa.

:

  1. C.W.Clenshaw. Chebyshev series for mathematical functions.
    ( National Physical Lab., Math. Tables, vol.5, London, 1962).
  2. Y.L.Luke, Mathematical functions and their approximations
    ( Academic Press, New York,1975).
:
       X=1.88D0
       YJ0=DBESJ0(X)
       YJ1=DBESJ1(X)
       YY0=DBESY0(X)
       YY1=DBESY1(X)
:
       J0(1.88D0)=  2.934459678332970E-001
       J1(1.88D0)=  5.815565698628681E-001
       Y0(1.88D0)=  4.934149358308195E-001
       Y1(1.88D0)= -1.761102436475729E-001


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