negative pi
pi
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Longitude (anticlockwise in xy-plane)
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negative pi
pi
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Projection used to map points onto plane
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Plot (show/hide)
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Second plot (show/hide)
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Parametric plot (show/hide)
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Rule for parametrisation σ
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Curves to plot
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less than or equal to "t" less than or equal to
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less than or equal to "t" less than or equal to
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Axes (show/hide)
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