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(OP)
Hi,
Can anybody help me translate these iteration in Mathcad function?
Givien
P=0.30kip
h=33ft
B=2.50ft
d=5ft
S=0.20ksf/ft
F=2

Calculated
S1=F*S*min(d/3,12ft)
A=2.34*P/(B*S1)
d1=A/2*(1+sqrt(1+4.36*h/A))
d2=(d+d1)/2 (new d will be the average of d1&d2, d2&d3, and so on.

then S1 will be recalculated using new d2, also "A" will be recalculated using new value of S1 i want to iterate using mathcad until (di+di+1) is almost equal.

Thanks

There are functions in Mathcad for directly solving equations like that. See Given-Find and Given-Minimize in the help files.

(OP)
Thanks IRstuff,i already tried searching but i can't find similar case and i can't figure out how it should be formulated.

"until (di+di+1) is almost equal" almost equal to what?

(OP)
Sorry guys! my intention is to keep on averaging the values of d, so it should be "values of last two d, will be the same".

It would have helped if you had given the same values that you actually used this time:
http://files.engineering.com/getfile.aspx?folder=a...

There is almost no reason that you should ever have to manually iterate in Mathcad. Its raison d'etre is problems like this.

(OP)
Thank you IRstuff, this is a great help. Mathcad is very helpful, i only have 3 steps with your given formula, while i was having almost 27 steps. Thanks again.

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