<s>
SageMath	B-Application
(	O
previously	O
Sage	O
or	O
SAGE	O
,	O
"	O
System	B-Application
for	I-Application
Algebra	I-Application
and	I-Application
Geometry	I-Application
Experimentation	I-Application
"	O
)	O
is	O
a	O
computer	B-General_Concept
algebra	I-General_Concept
system	I-General_Concept
(	O
CAS	B-General_Concept
)	O
with	O
features	O
covering	O
many	O
aspects	O
of	O
mathematics	O
,	O
including	O
algebra	O
,	O
combinatorics	O
,	O
graph	O
theory	O
,	O
numerical	B-General_Concept
analysis	I-General_Concept
,	O
number	O
theory	O
,	O
calculus	O
and	O
statistics	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
SageMath	B-Application
was	O
released	O
on	O
24February	O
2005	O
as	O
free	B-License
and	I-License
open-source	I-License
software	I-License
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
version	O
2	O
,	O
with	O
the	O
initial	O
goals	O
of	O
creating	O
an	O
"	O
open	O
source	O
alternative	O
to	O
Magma	B-General_Concept
,	O
Maple	B-Language
,	O
Mathematica	B-Language
,	O
and	O
MATLAB	B-Language
"	O
.	O
</s>
<s>
The	O
originator	O
and	O
leader	O
of	O
the	O
SageMath	B-Application
project	O
,	O
William	O
Stein	O
,	O
was	O
a	O
mathematician	O
at	O
the	O
University	O
of	O
Washington	O
.	O
</s>
<s>
SageMath	B-Application
uses	O
a	O
syntax	O
resembling	O
Python	B-Language
's	O
,	O
supporting	O
procedural	B-Application
,	O
functional	B-Language
and	O
object-oriented	B-Language
constructs	O
.	O
</s>
<s>
Stein	O
realized	O
when	O
designing	O
Sage	O
that	O
there	O
were	O
many	O
open-source	O
mathematics	O
software	O
packages	O
already	O
written	O
in	O
different	O
languages	O
,	O
namely	O
C	B-Language
,	O
C++	B-Language
,	O
Common	B-Language
Lisp	I-Language
,	O
Fortran	B-Application
and	O
Python	B-Language
.	O
</s>
<s>
Rather	O
than	O
reinventing	O
the	O
wheel	O
,	O
Sage	O
(	O
which	O
is	O
written	O
mostly	O
in	O
Python	B-Language
and	O
Cython	B-Application
)	O
integrates	O
many	O
specialized	O
CAS	B-General_Concept
software	O
packages	O
into	O
a	O
common	O
interface	O
,	O
for	O
which	O
a	O
user	O
needs	O
to	O
know	O
only	O
Python	B-Language
.	O
</s>
<s>
SageMath	B-Application
uses	O
both	O
students	O
and	O
professionals	O
for	O
development	O
.	O
</s>
<s>
The	O
development	O
of	O
SageMath	B-Application
is	O
supported	O
by	O
both	O
volunteer	O
work	O
and	O
grants	O
.	O
</s>
<s>
The	O
same	O
year	O
,	O
Stein	O
described	O
his	O
disappointment	O
with	O
a	O
lack	O
of	O
academic	O
funding	O
and	O
credentials	O
for	O
software	O
development	O
,	O
citing	O
it	O
as	O
the	O
reason	O
for	O
his	O
decision	O
to	O
leave	O
his	O
tenured	O
academic	O
position	O
to	O
work	O
full-time	O
on	O
the	O
project	O
in	O
a	O
newly	O
founded	O
company	O
,	O
SageMath	B-Application
,	O
Inc	O
.	O
</s>
<s>
2007	O
:	O
first	O
prize	O
in	O
the	O
scientific	O
software	O
division	O
of	O
Les	O
Trophées	O
du	O
Libre	O
,	O
an	O
international	O
competition	O
for	O
free	B-License
software	I-License
.	O
</s>
<s>
2012	O
:	O
one	O
of	O
the	O
projects	O
selected	O
for	O
the	O
Google	B-Application
Summer	I-Application
of	I-Application
Code	I-Application
.	O
</s>
<s>
2013	O
:	O
ACM/SIGSAM	O
Jenks	O
Prize	O
.	O
</s>
<s>
Both	O
binaries	B-Application
and	O
source	O
code	O
are	O
available	O
for	O
SageMath	B-Application
from	O
the	O
download	O
page	O
.	O
</s>
<s>
If	O
SageMath	B-Application
is	O
built	O
from	O
source	O
code	O
,	O
many	O
of	O
the	O
included	O
libraries	B-Library
such	O
as	O
OpenBLAS	B-Application
,	O
FLINT	B-Language
,	O
GAP	B-General_Concept
(	O
computer	B-General_Concept
algebra	I-General_Concept
system	I-General_Concept
)	O
,	O
and	O
NTL	B-Language
will	O
be	O
tuned	O
and	O
optimized	O
for	O
that	O
computer	O
,	O
taking	O
into	O
account	O
the	O
number	O
of	O
processors	O
,	O
the	O
size	O
of	O
their	O
caches	B-General_Concept
,	O
whether	O
there	O
is	O
hardware	O
support	O
for	O
SSE	B-General_Concept
instructions	I-General_Concept
,	O
etc	O
.	O
</s>
<s>
Cython	B-Application
can	O
increase	O
the	O
speed	O
of	O
SageMath	B-Application
programs	O
,	O
as	O
the	O
Python	B-Language
code	I-Language
is	O
converted	O
into	O
C	B-Language
.	O
</s>
<s>
SageMath	B-Application
is	O
free	B-License
software	I-License
,	O
distributed	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
version	O
3	O
.	O
</s>
<s>
Although	O
Microsoft	O
was	O
sponsoring	O
a	O
native	O
version	O
of	O
SageMath	B-Application
for	O
the	O
Windows	B-Application
operating	I-Application
system	I-Application
,	O
prior	O
to	O
2016	O
there	O
were	O
no	O
plans	O
for	O
a	O
native	O
port	O
,	O
and	O
users	O
of	O
Windows	O
had	O
to	O
use	O
virtualization	B-General_Concept
technology	I-General_Concept
such	O
as	O
VirtualBox	B-Operating_System
to	O
run	O
SageMath	B-Application
.	O
</s>
<s>
As	O
of	O
SageMath	B-Application
8.0	O
(	O
July	O
2017	O
)	O
,	O
with	O
development	O
funded	O
by	O
the	O
OpenDreamKit	O
project	O
,	O
it	O
successfully	O
builds	O
on	O
Cygwin	B-Language
,	O
and	O
a	O
binary	O
installer	O
for	O
64-bit	O
versions	O
of	O
Windows	O
is	O
available	O
.	O
</s>
<s>
Linux	B-Application
distributions	I-Application
in	O
which	O
SageMath	B-Application
is	O
available	O
as	O
a	O
package	O
are	O
Fedora	O
,	O
Arch	O
Linux	B-Application
,	O
Debian	O
,	O
Ubuntu	B-Operating_System
and	O
NixOS	O
.	O
</s>
<s>
In	O
Gentoo	B-Application
,	O
it	O
is	O
available	O
via	O
layman	O
in	O
the	O
"	O
sage-on-gentoo	O
"	O
overlay	O
.	O
</s>
<s>
The	O
package	O
used	O
by	O
NixOS	O
is	O
available	O
for	O
use	O
on	O
other	O
distributions	O
,	O
due	O
to	O
the	O
distribution-agnostic	O
nature	O
of	O
its	O
package	O
manager	O
,	O
Nix	B-Application
.	O
</s>
<s>
Gentoo	B-Application
prefix	O
also	O
provides	O
Sage	O
on	O
other	O
operating	O
systems	O
.	O
</s>
<s>
The	O
philosophy	O
of	O
SageMath	B-Application
is	O
to	O
use	O
existing	O
open-source	O
libraries	B-Library
wherever	O
they	O
exist	O
.	O
</s>
<s>
Therefore	O
,	O
it	O
uses	O
many	O
libraries	B-Library
from	O
other	O
projects	O
.	O
</s>
