MACROMEDIA FLASH MX 2004 - ACTIONSCRIPT Reference Manual page 449

Math.atan2()
Availability
Flash Player 5. In Flash Player 4, the methods and properties of the Math class are emulated using
approximations and may not be as accurate as the non-emulated math functions supported by
Flash Player 5.
Usage
Math.atan2(y, x)
Parameters
A number specifying the x coordinate of the point.
x
A number specifying the y coordinate of the point.
y
Returns
A number.
Description
Method; computes and returns the arc tangent of
angle opposite the opposite angle of a right triangle, where
the opposite side length.
Math.ceil()
Availability
Flash Player 5. In Flash Player 4, the methods and properties of the Math class are emulated using
approximations and may not be as accurate as the non-emulated math functions supported by
Flash Player 5.
Usage
Math.ceil(x)
Parameters
A number or expression.
x
Returns
A number.
Description
Method; returns the ceiling of the specified number or expression. The ceiling of a number is the
closest integer that is greater than or equal to the number.
in radians. The return value represents the
y/x
is the adjacent side length and
x
is
y
Math.ceil() 449