<s>
WolframAlpha	B-Application
(	O
)	O
is	O
an	O
answer	B-Algorithm
engine	I-Algorithm
developed	O
by	O
Wolfram	B-Application
Research	I-Application
.	O
</s>
<s>
WolframAlpha	B-Application
was	O
released	O
on	O
May	O
18	O
,	O
2009	O
,	O
and	O
is	O
based	O
on	O
Wolfram	B-Language
's	O
earlier	O
product	O
Wolfram	B-Application
Mathematica	I-Application
,	O
a	O
technical	O
computing	O
platform	O
.	O
</s>
<s>
WolframAlpha	B-Application
gathers	O
data	O
from	O
academic	O
and	O
commercial	O
websites	O
such	O
as	O
the	O
CIA	O
's	O
The	O
World	O
Factbook	O
,	O
the	O
United	O
States	O
Geological	O
Survey	O
,	O
a	O
Cornell	O
University	O
Library	O
publication	O
called	O
All	O
About	O
Birds	O
,	O
Chambers	O
Biographical	O
Dictionary	O
,	O
Dow	O
Jones	O
,	O
the	O
Catalogue	O
of	O
Life	O
,	O
CrunchBase	O
,	O
Best	O
Buy	O
,	O
and	O
the	O
FAA	O
to	O
answer	O
queries	O
.	O
</s>
<s>
WolframAlpha	B-Application
then	O
computes	O
answers	O
and	O
relevant	O
visualizations	O
from	O
a	O
knowledge	O
base	O
of	O
curated	O
,	O
structured	B-Application
data	I-Application
that	O
come	O
from	O
other	O
sites	O
and	O
books	O
.	O
</s>
<s>
It	O
can	O
respond	O
to	O
particularly	O
phrased	O
natural	B-General_Concept
language	I-General_Concept
fact-based	O
questions	O
.	O
</s>
<s>
WolframAlpha	B-Application
is	O
written	O
in	O
the	O
Wolfram	B-Language
Language	I-Language
,	O
a	O
programming	O
language	O
,	O
and	O
implemented	O
in	O
Mathematica	B-Application
,	O
is	O
proprietary	O
and	O
not	O
commonly	O
used	O
by	O
developers	O
.	O
</s>
<s>
WolframAlpha	B-Application
was	O
used	O
to	O
power	O
some	O
searches	O
in	O
the	O
Microsoft	B-Application
Bing	I-Application
and	O
DuckDuckGo	B-Application
search	O
engines	O
but	O
is	O
no	O
longer	O
used	O
to	O
provide	O
search	O
results	O
.	O
</s>
<s>
For	O
factual	O
question	B-Algorithm
answering	I-Algorithm
,	O
WolframAlpha	B-Application
was	O
used	O
by	O
Apple	O
's	O
Siri	B-Application
and	O
Amazon	B-Application
Alexa	I-Application
for	O
math	O
and	O
science	O
queries	O
but	O
is	O
no	O
longer	O
operational	O
within	O
those	O
services	O
.	O
</s>
<s>
WolframAlpha	B-Application
became	O
available	O
in	O
July	O
2020	O
within	O
Microsoft	B-Application
Excel	I-Application
,	O
but	O
the	O
Microsoft-Wolfram	O
partnership	O
ended	O
nearly	O
two	O
years	O
later	O
,	O
in	O
2022	O
,	O
in	O
favor	O
of	O
Microsoft	O
Power	B-Operating_System
Query	I-Operating_System
data	O
types	O
.	O
</s>
<s>
WolframAlpha	B-Application
functionality	O
in	O
Microsoft	B-Application
Excel	I-Application
will	O
end	O
in	O
June	O
2023	O
.	O
</s>
<s>
Launch	O
preparations	O
for	O
WolframAlpha	B-Application
began	O
on	O
May	O
15	O
,	O
2009	O
at	O
7p.m.	O
</s>
<s>
In	O
2009	O
,	O
WolframAlpha	B-Application
advocates	O
pointed	O
to	O
its	O
,	O
some	O
stating	O
that	O
how	O
it	O
determines	O
results	O
is	O
more	O
important	O
than	O
current	O
usefulness	O
.	O
</s>
<s>
WolframAlpha	B-Application
was	O
free	O
at	O
launch	O
,	O
but	O
later	O
Wolfram	B-Application
Research	I-Application
attempted	O
to	O
monetize	O
the	O
service	O
by	O
launching	O
an	O
iOS	B-Application
application	I-Application
with	O
a	O
cost	O
of	O
$50	O
,	O
while	O
the	O
website	O
itself	O
was	O
free	O
.	O
</s>
<s>
On	O
February	O
8	O
,	O
2012	O
,	O
WolframAlpha	B-Application
Pro	O
was	O
released	O
,	O
offering	O
users	O
additional	O
features	O
for	O
a	O
monthly	O
subscription	O
fee	O
.	O
</s>
<s>
Some	O
high-school	O
and	O
college	O
students	O
use	O
WolframAlpha	B-Application
to	O
cheat	O
on	O
math	O
homework	O
,	O
though	O
Wolfram	B-Application
Research	I-Application
says	O
the	O
service	O
helps	O
students	O
understand	O
math	O
with	O
its	O
problem-solving	O
capabilities	O
.	O
</s>
<s>
Free	O
software	O
advocate	O
Richard	O
Stallman	O
also	O
opposes	O
recognizing	O
the	O
site	O
as	O
a	O
copyright	O
holder	O
and	O
suspects	O
that	O
Wolfram	B-Application
Research	I-Application
would	O
not	O
be	O
able	O
to	O
make	O
this	O
case	O
under	O
existing	O
copyright	O
law	O
.	O
</s>
