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Revision 1 of 1, by Swen on 12-11-2013. The page as it is now.

Radian/zh CN

在数学和物理中,弧度是角的度量单位。它是由国际单位制导出的单位,单位缩写是rad。

定义:弧长等于半径的弧,其所对的圆心角为1弧度。(即两条射线从圆心向圆周射出,形成一个夹角和夹角正对的一段弧。当这段弧长正好等于圆的半径时,两条射线的夹角的弧度为1)。

所有三角函数参数、结果为弧度。

参见

函数


From the Free Pascal wiki, page "Radian/zh CN", as it stood on 2013-12-11 after a change by Swen, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.