package gs.easing {
          public class @ax-lib-flex-animation-code-10-gs-easing-Sine {
                  private static const _HALF_PI:Number = Math.PI / 2;
                  
                  public static function easeIn (t:Number, b:Number, c:Number, d:Number):Number {
                          return -c * Math.cos(t/d * _HALF_PI) + c + b;
                  }
                  public static function easeOut (t:Number, b:Number, c:Number, d:Number):Number {
                          return c * Math.sin(t/d * _HALF_PI) + b;
                  }
                  public static function easeInOut (t:Number, b:Number, c:Number, d:Number):Number {
                          return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
                  }
          }
  }