MATERNCFUN is the jMatern module of jLab.

 MATERNCFUN Returns the normalization or C-function for a Matern process.
 
    MATERNCFUN is a low-level function used in the JMATERN package.
 
    MATERNCFUN(ALPHA) returns the Matern C-function defined in Eqn. (44) of
    Lilly et al. (2017).
 
    MATERNCFUN(ALPHA,GAMMA) returns C-function for the two-parameter 
    generalized Matern process.  See MATERNSPEC for details.
 
    Usage: c=materncfun(alpha);
    __________________________________________________________________
    This is part of JLAB --- type 'help jlab' for more information
    (C) 2015--2020 J.M. Lilly --- type 'help jlab_license' for details