Spiral
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The
Spiral
is a plane curve which starts at a central point and gets progressively further and further away.
Spiral
s can be found in nature:
Arrangement of seeds in sunflowers etc.
Shells of nautilus and other animals
There are many named
spiral
s which include:
Archimedes
' (or equiangular)
spiral
has the formula $r=a\theta$ in
polar coordinate
s
Logrithmic
spiral
has the formula $r=ab^\theta$ in
polar coordinate
s
One of the
Named Curve
s on this site.
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