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2008 December
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Picture of the day
A table of
prime knots
,
knots
which are (in a certain sense) indecomposable, up to seven
crossings
(excluding
mirror images
) labelled with
Alexander–Briggs notation
. The
unknot
is not considered prime. A knot in
mathematics
is an
embedding
of a
circle
in 3-dimensional
Euclidean space
. The branch of mathematics that studies knots is known as
knot theory
.
Image credit:
Jkasd
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