Irregular Modified Bessel Functions - Fractional Order

Function: double gsl_sf_bessel_Knu (double nu, double x)

Function: int gsl_sf_bessel_Knu_e (double nu, double x, gsl_sf_result * result)

These routines compute the irregular modified Bessel function of fractional order @math{nu}, @math{K_\nu(x)} for @math{x>0}, @math{\nu>0}.

Function: double gsl_sf_bessel_lnKnu (double nu, double x)

Function: int gsl_sf_bessel_lnKnu_e (double nu, double x, gsl_sf_result * result)

These routines compute the logarithm of the irregular modified Bessel function of fractional order @math{nu}, @math{\ln(K_\nu(x))} for @math{x>0}, @math{\nu>0}.

Function: double gsl_sf_bessel_Knu_scaled (double nu, double x)

Function: int gsl_sf_bessel_Knu_scaled_e (double nu, double x, gsl_sf_result * result)

These routines compute the scaled irregular modified Bessel function of fractional order @math{nu}, @math{\exp(+|x|) K_\nu(x)} for @math{x>0}, @math{\nu>0}.