414
ActionScript classes
acos (Math.acos method)
public static acos(x:
Number
) : Number
Computes and returns the arc cosine of the number specified in the parameter
x
, in radians.
Availability:
ActionScript 1.0; Flash Lite 2.0 - In Flash Player 4, the methods and properties
of the Math class are emulated using approximations and might not be as accurate as the non-
emulated math functions that Flash Player 5 supports.
Parameters
x
:
Number
- A number from -1.0 to 1.0.
Returns
Number
- A number; the arc cosine of the parameter
x
.
Example
The following example displays the arc cosine for several values.
trace(Math.acos(-1)); // output: 3.14159265358979
trace(Math.acos(0)); // output: 1.5707963267949
trace(Math.acos(1)); // output: 0
See also
asin (Math.asin method)
,
atan (Math.atan method)
,
atan2 (Math.atan2 method)
,
cos (Math.cos method)
,
sin (Math.sin method)
,
tan (Math.tan method)
asin (Math.asin method)
public static asin(x:
Number
) : Number
Computes and returns the arc sine for the number specified in the parameter
x
, in radians.
Availability:
ActionScript 1.0; Flash Lite 2.0 - In Flash Player 4, the methods and properties
of the Math class are emulated using approximations and might not be as accurate as the non-
emulated math functions that Flash Player 5 supports.
Parameters
x
:
Number
- A number from -1.0 to 1.0.
Returns
Number
- A number between negative pi divided by 2 and positive pi divided by 2.
Summary of Contents for FLASHLITE2 ACTIONSCRIPT-LANGUAGE
Page 1: ...Flash Lite 2 x ActionScript Language Reference...
Page 22: ...22 Contents...
Page 244: ...244 ActionScript language elements...
Page 760: ...760 ActionScript classes...
