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Old 05-11-2008, 08:37 PM   #2 (permalink)
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I have question about R1, R2, and f(dR) cos the formula is abit not clear is that R1 n R2 = 10 power to (1/10)*(PdB - a(dR-dx)^b -c) and (1/10)*(PdB - a(dR-dx)^b -c) right?

and f(dR) = S^2R1R2 is (S^2) * R1 * R2 right?

for my idea you take PdB put into R1 and R2, then find R1 * R2 and R1 + R2
Than put everything into f(dR)=0, then find dR.

What class is that and what chapter?


Quote:
Originally Posted by lengcallrobot View Post
Dear every members, esecially Pokemon.

The below description is my problem:

Variable : a, b, c, dx, P, Pn, a', b', c', Clim and dR
Intermedia variable: S, R1, R2, PdB
For symplification : PdB = 10 log10(P) or P=10^(PdB/10)
For symplification : S=P/Pn
For symplification : R1=10^((1/10)*(PdB - a(dR-dx)^b - c))
For symplification : R2=10^((1/10)*(PdB - a'dR^b' - c'))

The equation to be solve is: f(dR) = S^2 R1 R2 - (2^(2 Clim) - 1)(1 + S(R1 + R2)) = 0
From this equation, Find dR in function of other variables.

Note that the varialble " b " is not an integer

Hope our member can help me.
Sorry Na if my question is stupid or disturb all of you.

Take care.

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