 orthonormal Hermite functions
    [H0,...HN] on a time axis specfied by the column vector T.
 
    <a href="jhermfun.html">JHERMFUN</a> uses the expression of Simons et al. 2003.
   
    Note that H(:,1) is the zeroth-order Hermite function, which is equal
    to a Gaussian.  H(:,2) is the first-order function, and so forth.  
   
    See also <a href="jhermpoly.html">JHERMPOLY</a>.
 
    '<a href="jhermfun.html">jhermfun</a> --f' generates a sample figure; compare with the Hermite 
    function figure at
