Math Class Trigonometry : Math « Development « Flash / Flex / ActionScript






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Math Class Trigonometry

 

Method Call      Returns 
Math.sin(a)      Sine of an angle measuring a radians
Math.cos(a)      Cosine of an angle measuring a radians
Math.tan(a)      Tangent of an angle measuring a radians
Math.asin(a)      Angle in radians whose sine is a (arcsine of a)
Math.acos(a)      Angle in radians whose cosine is a (arccosine of a)
Math.atan(a)      Angle in radians whose tangent is a (arctangent of a)
Math.atan2(y, x)      Angle which, drawn from the origin, intersects the point (x, y) (arctangent of y/x)








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15.package{
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17.atan2(), takes two parameters (an X- and a Y-coordinate), and returns the angle formed by the right triangle measured in radians: Math.atan2(x, y)
18.Use Math.round( ) to round a number to the nearest integer
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22.Use the identical math to round a number to the nearest multiple of an integer.
23.All trig functions operate on radians, an angular unit in which radians measure a full revolution.
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