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Point

In mathematics, a point is an abstract location with no size, used to specify position in space. In Euclidean geometry it is an undefined primitive with zero dimensions.

A point is typically described by coordinates within a chosen coordinate system; a line is defined as

Outside pure geometry, the idea of a point appears in physics as a point particle, in cartography

Typography uses the term point as a unit of length for measuring font size and line length;

Historically, the concept dates to ancient geometry; Euclid treated it as an undefined term. In contemporary

a
set
of
points,
a
plane
as
a
set
of
points,
and
in
higher
dimensions,
space
is
built
from
points.
Points
provide
the
most
basic
way
to
specify
location
and
to
construct
more
complex
objects.
as
a
geographic
point
with
coordinates,
in
statistics
and
data
analysis
as
a
data
point,
and
in
computer
graphics
as
a
pixel
center.
In
each
context,
a
point
represents
a
precise
position,
often
without
any
intrinsic
extent.
one
point
in
PostScript
is
1/72
of
an
inch,
with
regional
variants
such
as
the
Didot
point.
This
unit
is
unrelated
to
the
geometric
notion
of
a
point’s
size,
but
shares
the
common
idea
of
a
precise,
small
measure.
mathematics,
points
are
elements
of
a
set
within
axiomatic
systems
and
serve
as
the
elementary
building
blocks
for
curves,
surfaces,
and
higher-dimensional
spaces.