bessel_m Module

Variables

Type	Visibility	Attributes		Name		Initial
real(kind=GP),	public,	parameter	::	err_val_i0	=	-1.0_GP
real(kind=GP),	public,	parameter	::	err_val_k0	=	-1.0_GP

Functions

public pure function bessel_i0(arg) result(bi0)

Modified Bessel function of the 1st kind, I0(x) SOURCE: SPECFUN library by W. Cody and L. Stoltz NOTE: The function will produce worse results for larger arguments, around arg > 25. NOTE: The function returns -1 if an invalid argument was input (if arg > xmax).

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=GP),	intent(in)			::	arg

Return Value real(kind=GP)

public pure function bessel_k0(arg) result(bk0)

Modified Bessel function of the 2nd kind, K0(x) SOURCE: SPECFUN library by W. Cody and L. Stoltz NOTE: The function returns -1 if an invalid argument was input (if arg <= 0).

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=GP),	intent(in)			::	arg

Return Value real(kind=GP)