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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.
Math.cos(x)
x An angle measured in radians.
A number.
Method; returns the cosine (a value from -1.0 to 1.0) of the angle specified by the parameter x. The angle x must be specified in radians. Use the information outlined in the Math class entry to calculate a radian.
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