chord_to_cartesian¶
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halotools.utils.
chord_to_cartesian
(theta, radians=True)[source] [edit on github]¶ Calculate chord distance on a unit sphere given an angular distance between two points.
Parameters: theta : array
angular distance
radians : bool, optional
If True, input is interpreted as radians. If False, input in degrees. Default is True.
Returns: C : array
chord distance
Examples
>>> theta = np.linspace(0, 1, 100) >>> chord_distance = chord_to_cartesian(theta)