Hypergeometric 2F1 function

Syntax: y = HYPGEO(a,b,c,x)
y = CHLOGU(a,b,x)

The hypergeometric function is also called the Gauss series.

The logarithmic confluent hypergeometric function:

Where   is Kummer's function, or the regular confluent hypergeometric function:

where    and  

Note that this function fails when    is close to zero for small  .

  Hermite polynomials
  Identity matrix