Error Function
==============

Complementary Error Function
----------------------------

We have erfc(x) = 2/\sqrt(Pi) \int_x^\infty \exp(-t^2) .

 -- Function: int gsl_sf_erfc_impl (double x, gsl_sf_result * result)
 -- Function: int gsl_sf_erfc_e (double x, gsl_sf_result * result)
     Exceptional Return Values: none

Log Complementary Error Function
--------------------------------

 -- Function: int gsl_sf_log_erfc_impl (double x, gsl_sf_result * result)
 -- Function: int gsl_sf_log_erfc_e (double x, gsl_sf_result * result)
     Exceptional Return Values: none

Error Function
--------------

We have erf(x) = 2/\sqrt(Pi) \int_0^x dt \exp(-t^2) .

 -- Function: int gsl_sf_erf_impl (double x, gsl_sf_result * result)
 -- Function: int gsl_sf_erf_e (double x, gsl_sf_result * result)
     Exceptional Return Values: none

Probability functions
---------------------

Z(x) :  Abramowitz+Stegun 26.2.1 Q(x) :  Abramowitz+Stegun 26.2.3

 -- Function: int gsl_sf_erf_Z_impl (double x, gsl_sf_result * result)
 -- Function: int gsl_sf_erf_Q_impl (double x, gsl_sf_result * result)
 -- Function: int gsl_sf_erf_Z_e (double x, gsl_sf_result * result)
 -- Function: int gsl_sf_erf_Q_e (double x, gsl_sf_result * result)
     Exceptional Return Values: none