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unit vector

American  

noun

Mathematics, Physics.
  1. a vector having a length of one unit.


Example Sentences

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For modes in which the electric field is maximum at the patch edges, the patch can be equivalently described as having a magnetic surface current density, KM, that flows along the periphery of the patch, with magnitude given by 2E ×n, where the field is determined at the patch edge and is a unit vector normal to the surface.

From Nature