### Zeros of Airy Functions

Function: double gsl_sf_airy_zero_Ai (unsigned int s)
Function: int gsl_sf_airy_zero_Ai_e (unsigned int s, gsl_sf_result * result)
  These routines compute the location of the s-th zero of the Airy function Ai(x).

Function: double gsl_sf_airy_zero_Bi (unsigned int s)
Function: int gsl_sf_airy_zero_Bi_e (unsigned int s, gsl_sf_result * result)
  These routines compute the location of the s-th zero of the Airy function Bi(x).