極坐標系統
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極坐標系統(英文:Polar coordinate system),係數學入面用距離同方向表示二維平面嘅一點嘅方法。
極坐標系嘅原點叫「極點」,通常用O表示。當要表達一點P時,P點同極點嘅距離叫徑向座標或者半徑。
參考改
- ↑ Brown, Richard G. (1997). Andrew M. Gleason (編). Advanced Mathematics: Precalculus with Discrete Mathematics and Data Analysis. Evanston, Illinois: McDougal Littell. ISBN 0-395-77114-5.
出面網頁改
- Hazewinkel, Michiel, 編 (2001), "Polar coordinates", Encyclopaedia of Mathematics, Kluwer Academic Publishers, ISBN 978-1556080104
- Graphing Software at DMOZ
- Coordinate Converter — converts between polar, Cartesian and spherical coordinates
- Polar Coordinate System Dynamic Demo