Cos 
ĳǵֵ

Cos(number)
number κνĳǱʾΪȵЧֵʽ

˵
Cos ȡĳǲֱߵıֵ˱ֱֵиýǵڱ߳б֮߳ȡΧ -1  1 ֮䡣

ǶתɻȷýǶȳ pi/180֮תɽǶȵķûȳ 180/pi

ʾ Cos һǵֵ: 

Dim MyAngle, MySecant
MyAngle = 1.3                ' ûȶһǡ
MySecant = 1 / Cos(MyAngle)  ' 
