How do I write Sin^-1 in AHK? Topic is solved

[jsbjsb12345]

Hi, Trying to do this in AHK:

sin(x) = 0.5
x = sin^-1(0.5)
x = 30°

This doesn't work:

Code: Select all

MsgBox, % Sin**-1(0.5)

as the **-1 seems to break it.

I don't know much about math, I read the general math and trigonometry section of the AHK reference to no avail.

Thanks!!

[gregster]

Like this:

Code: Select all

pi := 4*ATan(1)
MsgBox, % ASin(0.5) * 180 / pi		; returns 30.000000

Since the arcsine function returns radians, you have to convert it to degrees:

Note: To convert a radians value to degrees, multiply it by 180/pi (approximately 57.29578). To convert a degrees value to radians, multiply it by pi/180 (approximately 0.01745329252). The value of pi (approximately 3.141592653589793) is 4 times the arctangent of 1.