<s>
Gaussian	B-Application
is	O
a	O
general	O
purpose	O
computational	O
chemistry	O
software	O
package	O
initially	O
released	O
in	O
1970	O
by	O
John	O
Pople	O
and	O
his	O
research	O
group	O
at	O
Carnegie	O
Mellon	O
University	O
as	O
Gaussian	B-Application
70	O
.	O
</s>
<s>
The	O
name	O
originates	O
from	O
Pople	O
's	O
use	O
of	O
Gaussian	B-Application
orbitals	O
to	O
speed	O
up	O
molecular	O
electronic	O
structure	O
calculations	O
as	O
opposed	O
to	O
using	O
Slater-type	O
orbitals	O
,	O
a	O
choice	O
made	O
to	O
improve	O
performance	O
on	O
the	O
limited	O
computing	O
capacities	O
of	O
then-current	O
computer	O
hardware	O
for	O
Hartree	O
–	O
Fock	O
calculations	O
.	O
</s>
<s>
The	O
current	O
version	O
of	O
the	O
program	O
is	O
Gaussian	B-Application
16	O
.	O
</s>
<s>
Originally	O
available	O
through	O
the	O
Quantum	O
Chemistry	O
Program	O
Exchange	O
,	O
it	O
was	O
later	O
licensed	O
out	O
of	O
Carnegie	O
Mellon	O
University	O
,	O
and	O
since	O
1987	O
has	O
been	O
developed	O
and	O
licensed	O
by	O
Gaussian	B-Application
,	O
Inc	O
.	O
</s>
<s>
According	O
to	O
the	O
most	O
recent	O
Gaussian	B-Application
manual	O
,	O
the	O
package	O
can	O
do	O
:	O
</s>
<s>
Gaussian	B-Application
70	O
,	O
Gaussian	B-Application
76	O
,	O
Gaussian	B-Application
80	O
,	O
Gaussian	B-Application
82	O
,	O
Gaussian	B-Application
86	O
,	O
Gaussian	B-Application
88	O
,	O
Gaussian	B-Application
90	O
,	O
Gaussian	B-Application
92	O
,	O
Gaussian	B-Application
92/DFT	O
,	O
Gaussian	B-Application
94	O
,	O
and	O
Gaussian	B-Application
98	O
,	O
Gaussian	B-Application
03	O
,	O
Gaussian	B-Application
09	I-Application
,	O
Gaussian	B-Application
16	O
.	O
</s>
<s>
Other	O
programs	O
named	O
'	O
Gaussian	B-Application
XX	O
 '	O
were	O
placed	O
among	O
the	O
holdings	O
of	O
the	O
Quantum	O
Chemistry	O
Program	O
Exchange	O
.	O
</s>
<s>
In	O
the	O
past	O
,	O
Gaussian	B-Application
,	O
Inc	O
.	O
has	O
attracted	O
controversy	O
for	O
its	O
licensing	O
terms	O
that	O
stipulate	O
that	O
researchers	O
who	O
develop	O
competing	O
software	O
packages	O
are	O
not	O
permitted	O
to	O
use	O
the	O
software	O
.	O
</s>
<s>
The	O
anonymous	O
group	O
bannedbygaussian.org	O
has	O
published	O
a	O
list	O
of	O
scientists	O
whom	O
it	O
claims	O
are	O
not	O
permitted	O
to	O
use	O
GAUSSIAN	B-Application
software	O
.	O
</s>
<s>
Gaussian	B-Application
,	O
Inc	O
.	O
disputes	O
the	O
accuracy	O
of	O
these	O
descriptions	O
of	O
its	O
policy	O
and	O
actions	O
,	O
noting	O
that	O
all	O
of	O
the	O
listed	O
institutions	O
do	O
in	O
fact	O
have	O
licenses	O
for	O
everyone	O
but	O
directly	O
competing	O
researchers	O
.	O
</s>
<s>
They	O
also	O
claim	O
that	O
not	O
licensing	O
competitors	O
is	O
standard	O
practice	O
in	O
the	O
software	O
industry	O
and	O
members	O
of	O
the	O
Gaussian	B-Application
collaboration	O
community	O
have	O
been	O
refused	O
licenses	O
from	O
competing	O
institutions	O
.	O
</s>
