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Superlattice spiral equation

  1. Jan 19, 2012 #1
    basically need to look up and use this formula but i can't remember the name.
    i know it has uses in other fields apart from super lattice structures. basically it forms an outward spiral until it reaches an equilibrium point and forms a circle. i think it has a double barrel name and is named after a famous physicist/engineer that first applied it.
    sorry i can't be any more descriptive but that is all that i can remember at the moment

    thank you to anyone that can help

    EDIT: Van der Pol oscillator was the equation is was looking for
    Last edited: Jan 19, 2012
  2. jcsd
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