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`BESSEL_YN`

— Bessel function of the second kind*Description*:`BESSEL_YN(N, X)`

computes the Bessel function of the second kind of order`N`of`X`. This function is available under the name`BESYN`

as a GNU extension.If both arguments are arrays, their ranks and shapes shall conform.

*Standard*:- Fortran 2008 and later
*Class*:- Elemental function
*Syntax*:`RESULT = BESSEL_YN(N, X)`

*Arguments*:-
`N`Shall be a scalar or an array of type `INTEGER`

.`X`Shall be a scalar or an array of type `REAL`

. *Return value*:- The return value is a scalar of type
`REAL`

. It has the same kind as`X`. *Example*:-
program test_besyn real(8) :: x = 1.0_8 x = bessel_yn(5,x) end program test_besyn

*Specific names*:-
Name Argument Return type Standard `DBESYN(N,X)`

`INTEGER N`

`REAL(8)`

GNU extension `REAL(8) X`