Relative velocity: Difference between revisions

Latest revision as of 02:15, 6 August 2014

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My web blog ... http://rtdcs.hufs.ac.kr/

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-In [[mathematics]], '''Poinsot's spirals''' are two [[spiral]]s represented by the [[polar equation]]s
+Hi there. Let me begin by introducing the writer, her title is Myrtle Cleary. Years ago we moved to North Dakota. Hiring is her working day job now but she's always needed her own company. One of the extremely very best things in the world for me is to do aerobics and I've been doing it for quite a whilst.<br><br>My web blog ... [http://rtdcs.hufs.ac.kr/?document_srl=780411 http://rtdcs.hufs.ac.kr/]
-:<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

Latest revision as of 02:15, 6 August 2014

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