8.30 BESSEL_Y0 — Bessel function of the second kind of order 0

Description:

BESSEL_Y0(X) computes the Bessel function of the second kind of order 0 of X. This function is available under the name BESY0 as a GNU extension.

Standard:

Fortran 2008 and later

Class:

Elemental function

Syntax:

RESULT = BESSEL_Y0(X)

Arguments:

X	The type shall be REAL, and it shall be scalar.

Return value:

The return value is a scalar of type REAL. It has the same kind as X.

Example:

          program test_besy0
            real(8) :: x = 0.0_8
            x = bessel_y0(x)
          end program test_besy0

Specific names:

Name	Argument	Return type	Standard
DBESY0(X)	REAL(8) X	REAL(8)	GNU extension