Relative velocity: Difference between revisions

Revision as of 01:32, 10 February 2014

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-In [[mathematics]], '''Poinsot's spirals''' are two [[spiral]]s represented by the [[polar equation]]s
+Hello buddy. Let me introduce myself. I am Ron but I don't like when people use my full title. Playing crochet is a factor that I'm totally addicted to. Some time in the past he chose to live in Kansas. Interviewing is what I do in my working day job.<br><br>Feel free to surf to my web site :: [http://sportshop-Union.de/index.php?mod=users&action=view&id=13058 extended car warranty]
-:<math> r = a\ \operatorname{csch} (n\theta) </math>
-:<math> r = a\ \operatorname{sech} (n\theta) </math>
-where csch is the [[hyperbolic cosecant]], and sech is the [[hyperbolic secant]].<ref name=Lawrence1972>{{cite book|last=Lawrence|first=J. Dennis|title=A Catalog of Special Plane Curves|year=1972|publisher=Dover|location=New York|pages=192–194|isbn=0486602885}}</ref> They are named after the French mathematician [[Louis Poinsot]].
-{{multiple image
-|align= center
-|footer = Examples of the two types of Poinsot's spirals.
-|image1 = Poinsot2.svg
-|width1 = 300
-|alt1 = The Poinsot spiral r=csch(θ/3).
-|caption1 = The Poinsot spiral r=csch(θ/3).
-|image2 = Poinsot1.svg
-|width2 = 285
-|alt2 = The Poinsot spiral r=sech(θ/3).
-|caption2 = The Poinsot spiral r=sech(θ/3).
-}}
-==See also==
-[[Cotes' spiral]]
-==References==
-{{reflist}}
-{{geometry-stub}}
-[[Category:Spirals]]

Relative velocity: Difference between revisions

Revision as of 01:32, 10 February 2014

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