ActionScript Orgに一覧乗ってるスレがあった Liner, Cubic, Quadlic, Quintまで全部そろってますよ。これで一見落着。 Math.linearTween = function (t, b, c, d) { return c*t/d + b; }; Math.easeInQuad = function (t, b, c, d) { return c*(t/=d)*t + b; }; Math.easeOutQuad = function (t, b, c, d) { return -c *(t/=d)*(t-2) + b; }; Math.easeInOutQuad = function (t, b, c, d) { if ((t/=d/2) < 1) return c/2*t*t + b; return -c/2 * ((--t)*(t-2) - 1)