Conventions
The radial coordinate is often denoted by r, and the angular coordinate by θ or t.
Angles in polar notation are generally expressed in either degrees or radians (2π rad being equal to 360°). Degrees are traditionally used in navigation, surveying, and many applied disciplines, while radians are more common in mathematics and mathematical physics.
In many contexts, a positive angular coordinate means that the angle θ is measured counterclockwise from the axis.
In mathematical literature, the polar axis is often drawn horizontal and pointing to the right.
Read more about this topic: Polar Coordinate System
Famous quotes containing the word conventions:
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—Thomas Mann (1875–1955)
“It is not human nature we should accuse but the despicable conventions that pervert it.”
—Denis Diderot (1713–1784)
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—Ralph Waldo Emerson (1803–1882)