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经度[Longitude] [2005-8-9]
iamet 发表在 ¤〖天文〗
| | The azimuthal position of a point on the surface of a sphere or spheroid.The zero point of longitude is usually arbitrarily fixed at a given point (the prime meridian on Earth), and longitude is then conventionally specified in the range 180° east to 180° west. The latitudes and longitudes of some major cities of the world can be found using CityData["city"] in the Mathematica add-on package Miscellaneous`CityData` (which can be loaded with the command <<Miscellaneous`). |
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