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Point
In classical
geometry
, a
point
is an entity that has no extent. In the modern
set
theoretic approach to
topology
, this is formalised as: a
point
in a
space
X
is simply an element of the set
X
.
See also:
solution point
In
typography
, a
point
is approximately 1/72
inch
; on computer displays it is often one or four
pixels
.
In
sports
and
games
, a
point
is a unit of
scoring
.
A
point
on a
railroad
is also called a
railroad switch
.
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