Structure and vensim equations for the macro "DELAY FIXED"

[mashayekhi]

I need the structure and vensim equations for the macro "DELAY FIXED( {in} , {dtime} , {init} )" I appreciate any help!

[Administrator]

It's not a macro (in Vensim terminology). And I cannot release the source code to you (it would be useless outside of Vensim).

Why do you need it?

Does this help?
http://www.vensim.com/documentation/fn_delay_fixed.htm

[tomfid]

It's an infinite order delay, which means that effectively it's an aging chain where the number of stocks is equal to delay_duration/TIME_STEP, and each stock has time constant = TIME_STEP.