Smooth3

[Smooth]

Hi everybody!
My english is not so good but I hope somebody can help me!
I want to implement the smooth3 function into java. In the manual is the follwing explanation:

SMOOTH3(input,delay time)
Returns a 3rd order exponential smooth of the input.
Equivalent to the equations:
SMOOTH3=INTEG((LV2-SMOOTH3)/DL, input)
LV2=INTEG((LV1-LV2)/DL,input)
LV1=INTEG((IN-LV1)/DL,input)
DL=delay time/3

In the last equation LV1 must be the old LV1 and IN must be the input (right?). But how can I get the first LV1 value, when its been been recursively called? The same question for LV2.
I hope somebody can help me....

[bob@vensim.com]

If you want to get at the different levels in a smooth chain you should not use the SMOOTH3 function but instead explicitly represent the aging chain. The SMOOTH3 is a shorthand for this when the internal elements are not of interest.