MACROMEDIA FLEX-FLEX ACTIONSCRIPT LANGUAGE Reference page 361

trace(Math.SQRT2);
// Output: 1.4142135623731
Math.tan()
Availability
Flash Player 5. 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.
Usage
Math.tan(x:Number)
Parameters
A number that represents an angle measured in radians.
x
Returns
A number; tangent of parameter
Description
Method; computes and returns the tangent of the specified angle. To calculate a radian, use the
information outlined in the introduction to the
Example
The following example draws a circle using the mathematical constant pi, the tangent of an angle,
and the Drawing API.
drawCircle(this, 100, 100, 50);
//
function drawCircle(mc:MovieClip, x:Number, y:Number, r:Number):Void {
mc.lineStyle(2, 0xFF0000, 100);
mc.moveTo(x+r, y);
mc.curveTo(r+x, Math.tan(Math.PI/8)*r+y, Math.sin(Math.PI/4)*r+x,
Math.sin(Math.PI/4)*r+y);
mc.curveTo(Math.tan(Math.PI/8)*r+x, r+y, x, r+y);
mc.curveTo(-Math.tan(Math.PI/8)*r+x, r+y, -Math.sin(Math.PI/4)*r+x,
Math.sin(Math.PI/4)*r+y);
mc.curveTo(-r+x, Math.tan(Math.PI/8)*r+y, -r+x, y);
mc.curveTo(-r+x, -Math.tan(Math.PI/8)*r+y, -Math.sin(Math.PI/4)*r+x, -
Math.sin(Math.PI/4)*r+y);
mc.curveTo(-Math.tan(Math.PI/8)*r+x, -r+y, x, -r+y);
mc.curveTo(Math.tan(Math.PI/8)*r+x, -r+y, Math.sin(Math.PI/4)*r+x, -
Math.sin(Math.PI/4)*r+y);
mc.curveTo(r+x, -Math.tan(Math.PI/8)*r+y, r+x, y);
}
See also
Math.acos(), Math.asin(), Math.atan(), Math.atan2(), Math.cos(),
.
x
Math class.
Math.sin()
Math.tan() 361