complete automatical iteration?maybe per comparison?

[hamburgirl]

Hallo everybody,
i made an iterationformula in Mathcad by using those i:=1..20 -variables. I get the right solution by compare the 40 values(20 vi+1 and 20 vi) per eye until both values are equal. but now i like to let mathcad do this comparison automatically. How should I programm this problem? I tried to use for- and while-loops, but i think the mainproblem is to get access on the different cells from the i-variable-range.unfortunately in the handbook is no reference on the existence of such a command. Has somebody an idea for me, please?
Thanks, AS

 

[IRstuff]

Could you post your file on the Mathcad Collaboratory? It would make more sense if one could see the actual calculation:

http://collab.mathsoft.com/~Mathcad2000

TTFN