Cos
计算数的余弦值.
Cos ( expression )
参数
返回值
返回数的三角余弦值.
备注
弧度 1° = pi(圆周率) / 180.
函数示例
#include <MsgBoxConstants.au3>
Example()
Func Example()
; Assign a Local constant variable the approximate PI number.
Local Const $PI = 3.141592653589793
; Assign a Local variable the cosine of PI / 4 (equals to Sqrt(2) / 2).
Local $fCos1 = Cos($PI / 4)
; Display the result.
MsgBox($MB_SYSTEMMODAL, "", $fCos1)
; Assign a Local variable the formula to switch from radian to degree (equals to one degree in radian).
Local $fDegToRad = $PI / 180
; Assign a Local variable the cosine of 90 degrees (firstly converted to radians).
Local $fCos2 = Cos(90 * $fDegToRad)
; Display the result.
MsgBox($MB_SYSTEMMODAL, "", $fCos2)
EndFunc ;==>Example
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该函数可以通过命令 exect 调用
参见:
ACos, Sin, Tan, ASin, ATan
Cos(3.14159265358979/4) ;; 45度余弦
exect=$var_pi=3.14159265358979||$var_nd=$var_pi/180||$var_nr=180/$var_pi||$var_na=Cos($var_pi/4)||$var_nb=Cos(90*$var_nd)||Cos(30/$var_nr) GLOBALEXECT<a> ;; 各种计算使用余弦函数的角度
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