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sin()_C语言sin()详解:正弦函数,求某个角的正弦值

2018-8-7 · sin() 函数的功能是求某个角的正弦值。 在直角三角形 ABC 中(其中角 C 为 90°),角 A 的正弦就是它的对边长度和三角形斜边长度的比值,如下图所示,sinA = a / c。

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Python sin() 函数 Python 数字 描述 sin() 返回的x弧度的正弦值。 语法 以下是 sin() 方法的语法: import math math.sin(x) 注意:sin()是不能直接访问的,需要导入 math 模块,然后通过 math 静态对象调用该方法。 参数 x -- 一个数值。 返回值 返回的x弧度 ...

Math.sin() - JavaScript | MDN

概述 Math.sin() 函数返回一个数值的正弦值。 语法 Math.sin(x)参数 x 一个数值(以弧度为单位)。 描述 sin 方法返回一个 -1 到 1 之间的数值,表示给定角度(单位:弧度)的正弦值。 由于 sin 是 Math 的静态方法,所以应该像这样使用:Math.sin(),而不是作为你创建的 Math 实例的方法。

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