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In a message dated 10/26/01 4:31:12 AM Pacific Daylight Time,
MikeSuesserott@xxxxxxxxxxx writes:
<< > > Hi Ian,
> >
> > try this:
> >
> > Floor(0.1*(Sqrt(5)*Sqrt(8*Acct-75)+5))
> >
> > Floor might be called Int in EL, I don't remember now.
> >
> > Best regards,
> >
> > Michael Suesserott >>
Hi Mike,
I'm not quite sure how I got hooked into this thread but I did. Perhaps it
was the very patient way you were dealing with the guy who asked the
question! <g> Anyway, I did get hooked. I wound up with the value for A
(account size) being a recursive function of C:
A (for C contracts) = A (for C-1 contracts) + (C-1)*5
I then tried using your 'solution' [ Floor(0.1*(Sqrt(5)*Sqrt(8*Acct-75)+5))
] and found that for a given value of A it was NOT calculating the
proper # of contracts. It yielded values for the # of contracts which was
consistently too large by 4 contracts. Changing the last 5 in your formula
to a 1 produced the 'correct' results. Am I all wet here or is my analysis
correct?
My efforts to find a way to calculate the # of contracts to be used for a
given value of A (account size) couldn't get any further than finding the
recursive relationship I noted above. So I AM curious how you derived the
formula you came up with. Is there something I should know about the
properties of recursive formulae that has escaped me?
Regards,
Lee Scharpen
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