Erf or Hypergeometric1F1
- To: mathgroup at yoda.physics.unc.edu
- Subject: Erf or Hypergeometric1F1
- From: Roque Donizete de Oliveira <oliveria at engin.umich.edu>
- Date: Sun, 4 Oct 92 01:15:06 -0400
This is Mma 1.2 on an apollo.
In[12]:= Hypergeometric1F1[1, 3/2, -z^2]
3 2
Out[12]= Hypergeometric1F1[1, -, -z ]
2
This is Mma 2.1 on a decstation 5000.
In[31]:= Hypergeometric1F1[1, 3/2, -z^2]
2 2
-(Sqrt[Pi] Sqrt[-z ] Erf[Sqrt[-z ]])
Out[31]= ------------------------------------
2
z 2
2 E z
As you can see, it wrote Hypergeometric1F1
in terms of Erf. I don't want that.
How can I prevent MMa2.1 from converting/simplifying
my original function ?
Thanks.
Roque
oliveria at caen.engin.umich.edu