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polar angle

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polar angle [′pō·lər ′aŋ·gəl]
(mathematics)
The angular coordinate θ in a polar coordinate system whose value at a given pointpis the angle that a line from the origin topmakes with the polar axis.


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In a polar, sometimes called cylindrical, coordinate system, a point is represented by the radial distance, the polar angle, and the distance along the third axis (Z).
6) Light of a given state of polarization is therefore represented by a point on the sphere, with the polar angles 2 [varphi] and 2 [chi] representing, respectively, twice the azimuth and twice the ellipticity of the light.
 
 
 
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