<s>
A	O
table	O
is	O
an	O
arrangement	O
of	O
information	O
or	O
data	O
,	O
typically	O
in	O
rows	B-Application
and	O
columns	B-Application
,	O
or	O
possibly	O
in	O
a	O
more	O
complex	O
structure	O
.	O
</s>
<s>
Tables	O
are	O
widely	O
used	O
in	O
communication	O
,	O
research	O
,	O
and	O
data	B-General_Concept
analysis	I-General_Concept
.	O
</s>
<s>
A	O
table	O
consists	O
of	O
an	O
ordered	O
arrangement	O
of	O
rows	B-Application
and	O
columns	B-Application
.	O
</s>
<s>
the	O
term	O
row	B-Application
has	O
several	O
common	O
synonyms	O
(	O
e.g.	O
,	O
record	O
,	O
k-tuple	O
,	O
n-tuple	O
,	O
vector	O
)	O
;	O
</s>
<s>
the	O
intersection	O
of	O
a	O
row	B-Application
and	O
a	O
column	O
is	O
called	O
a	O
cell	B-General_Concept
.	O
</s>
<s>
Additionally	O
,	O
a	O
table	O
may	O
include	O
metadata	O
,	O
annotations	O
,	O
a	O
header	B-General_Concept
,	O
a	O
footer	O
or	O
other	O
ancillary	O
features	O
.	O
</s>
<s>
The	O
following	O
illustrates	O
a	O
simple	O
table	O
with	O
three	O
columns	B-Application
and	O
nine	O
rows	B-Application
.	O
</s>
<s>
The	O
first	O
row	B-Application
is	O
not	O
counted	O
,	O
because	O
it	O
is	O
only	O
used	O
to	O
display	O
the	O
column	O
names	O
.	O
</s>
<s>
This	O
is	O
called	O
a	O
"	O
header	B-General_Concept
row	B-Application
"	O
.	O
</s>
<s>
table	O
by	O
normalizing	B-Application
the	O
data	O
values	O
into	O
ordered	O
hierarchies	O
.	O
</s>
<s>
In	O
multi-dimensional	O
tables	O
,	O
each	O
cell	B-General_Concept
in	O
the	O
body	O
of	O
the	O
table	O
(	O
and	O
the	O
value	O
of	O
that	O
cell	B-General_Concept
)	O
relates	O
to	O
the	O
values	O
at	O
the	O
beginnings	O
of	O
the	O
column	O
(	O
i.e.	O
</s>
<s>
the	O
header	B-General_Concept
)	O
,	O
the	O
row	B-Application
,	O
and	O
other	O
structures	O
in	O
more	O
complex	O
tables	O
.	O
</s>
<s>
Column	O
1	O
and	O
row	B-Application
1	O
will	O
only	O
correspond	O
to	O
cell	B-General_Concept
(	O
1	O
,	O
1	O
)	O
;	O
</s>
<s>
Column	O
1	O
and	O
row	B-Application
2	O
will	O
only	O
correspond	O
to	O
cell	B-General_Concept
(	O
2	O
,	O
1	O
)	O
etc	O
.	O
</s>
<s>
Multi-dimensional	O
tables	O
may	O
have	O
super-rows	O
-	O
rows	B-Application
that	O
describe	O
additional	O
dimensions	O
for	O
the	O
rows	B-Application
that	O
are	O
presented	O
below	O
that	O
row	B-Application
and	O
are	O
usually	O
grouped	O
in	O
a	O
tree-like	O
structure	O
.	O
</s>
<s>
As	O
a	O
communication	O
tool	O
,	O
a	O
table	O
allows	O
a	O
form	O
of	O
generalization	B-Algorithm
of	O
information	O
from	O
an	O
unlimited	O
number	O
of	O
different	O
social	O
or	O
scientific	O
contexts	O
.	O
</s>
<s>
word	B-General_Concept
processing	I-General_Concept
applications	O
;	O
</s>
<s>
spreadsheet	B-Application
applications	O
;	O
</s>
<s>
presentation	B-Application
software	I-Application
;	O
</s>
<s>
At	O
a	O
programming	O
level	O
,	O
software	O
may	O
be	O
implemented	O
using	O
constructs	O
generally	O
represented	O
or	O
understood	O
as	O
tabular	O
,	O
whether	O
to	O
store	O
data	O
(	O
perhaps	O
to	O
memoize	O
earlier	O
results	O
)	O
,	O
for	O
example	O
,	O
in	O
arrays	B-Data_Structure
or	O
hash	B-Algorithm
tables	I-Algorithm
,	O
or	O
control	B-Application
tables	I-Application
determining	O
the	O
flow	O
of	O
program	O
execution	O
in	O
response	O
to	O
various	O
events	O
or	O
inputs	O
.	O
</s>
<s>
Database	O
systems	O
often	O
store	O
data	O
in	O
structures	O
called	O
tables	O
;	O
in	O
which	O
columns	B-Application
are	O
data	O
fields	O
and	O
rows	B-Application
represent	O
data	B-Application
records	I-Application
.	O
</s>
