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What is the name for the axis that "inclination angle" is measured from in spherical coordinates?

I keep trying to call it "polar axis", and the other axis from which the azimuth is measured, the "azimuthal axis". Is this correct?

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By "elevation", I meant the axis from which the "polar angle" is measured. On the wiki, they call this the "inclination angle"! Sorry, I actually had a mistake in the question! –  bobobobo May 9 '12 at 1:27
    
Ah, I see. Sorry for the confusion. –  David Mitra May 9 '12 at 1:29
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Even if some reference asserts the existence of a standard name for this axis, I would not use any term expecting people to know what it is. I assure you, the vast majority of people know of no standard name for that axis (except maybe "the $z$-axis"?). There is also no universal convention about which of the angles in spherical coordinates is called $\theta$ and which is $\varphi$ (and hence which angle is the "azimuthal angle"). Mathematicians tend to prefer $\theta$ to be the angle that is most analogous to the $\theta$ in 2D polar coordinates; many physicists use the opposite convention. –  leslie townes May 9 '12 at 1:40
    
It would be easier to respond if you could tell us which variable precisely using this diagram as reference. –  Sniper Clown May 9 '12 at 1:40
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To me, inclination is $\frac \pi 2-\theta$, that is, it is measured from the $xy$ plane and has a range of $[-90^{\circ },90^\circ ]$ as the people who use "inclination" also measure in degrees –  Ross Millikan May 9 '12 at 2:31
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