| Math.asin( ) Method | Flash 5; can be used when exporting Flash 4 movies |
| compute the arc sine of a number | | Arguments - x
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A number between -1.0 and 1.0 (the sine of an angle). Returns The angle, in radians, whose sine is x. If x is not in the range -1.0 to 1.0, returns NaN. Description The arc sine function (sometimes written as sin-1) is the inverse of the sine function. It returns the angle whose sine has the specified value, in radians. The return value is in the range of -/2 to /2 radians. Exampletrace (Math.asin(1.0)); // Displays: 1.5707... (i.e., pi/2) trace (Math.asin(0.0)); // Displays: 0 See Also Math.acos( ), Math.atan( ), Math.sin( ) |