原点




原点（げんてん、英: origin, 羅: origo）は、物事のはじまりや基（もと）、基準、根拠となるところ。人の人生、企業などの歴史を振り返る際に、出発点という意味で比喩でも用いられる。



  • (数学): 原点 (数学)


  • 日本の緯度経度の原点は、日本経緯度原点と呼ばれ、東京都港区麻布台にある。


  • 機械などにおいては、移動範囲内に原点ドグを設けてセンサにより検出させて、動作の基準としている。


  • 麻雀においては、点棒の計算をする基準となる点数を原点と言う。
    詳細は「麻雀の点#配給原点と原点」を参照




関連項目



  • オリジン (曖昧さ回避)


  • 発祥（ルーツ）








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