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

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Flash / Flex / ActionScript » Development » Math

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)

Related examples in the same category

1.	Math Constants
2.	Math Class Arithmetic
3.	Math class includes the constant Math.PI for the number, ratio of a circle's circumference to its diameter.
4.	Finding Absolute Values
5.	Rounding and Truncating Numbers: round(), ceiling(), and floor()
6.	The ceil() method returns the next-highest integer value of the number passed it as an argument.
7.	The floor()returns the next-lowest integer.
8.	Use round(), ceiling(), and floor() to round or truncate to decimal place values.
9.	Generating Random Numbers: The random() returns a floating-point value between 0 and 0.999999, inclusive.
10.	Generate a random number within a range that does not start with 0
11.	Random integer values
12.	If you are working with one six-sided die, you want to generate a random number between 1 and 6 each time
13.	Finding the Greater or Lesser of Two Numbers
14.	The calculation for finding compound interest: newValue = originalValue * (1 + rate/cp)^(cp*t)
15.	package{
16.	The exp() method requires one parameter: a number. It then raises e (Math.E) to the power of that number.
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
19.	Use Math.floor( ) to round a number down
20.	Use Math.ceil( ) to round a number up.
21.	To round a number to the nearest decimal place:
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.
24.	Generate random number in a range

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