Scaling Tween but with no Delta

[m_fury]

How can I apply a motion tween if there's not an actual distance? What I mean is, lets say I want to make a rectangle's scale to oscillate in size...but I want it to start at 100% and finish at 100%...so technically there's no distance travelled. The delta would always be 0. So how would I accomplish such a thing? Here's the function I'm using:

delta - (computedTweenedValue * delta)

[Krakadu]

it looks to me that u need the "shape tween" thing or i had understood u wrong