From: Walter Roberson <>
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Subject: Re: solving equation for two unknowns
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Date: Sun, 15 Aug 2010 20:49:44 -0500
Xref: comp.soft-sys.matlab:662250

achenyo at wrote:
> Walter Roberson <> wrote in message 
> <i4457o$k8r$>...
>> achenyo at wrote:

>> > I have the following two sets of equations:
>> > > integral of ((1/(lamda1+(lamda2*g0)))-(KNB/g1))*dF0(go)dF1(g1) = > 
>> 1.................(1)
>> > > and
>> > > integral of 
>> ((g0/(lamda1+(lamda2*g0)))-(KNB*(g0/g1)))*dF0(go)dF1(g1) = > GQ.......(2)
>> > > every other variable here is known except for amda1 and lamda2, 
>> how can > I solve for lamda1 and lamda2.

> Yes dF0(go)dF1(g1) represent the multiplication of 
> dF0(go) with dF1(g1) and dF0(g0) and dF1(g1) are not constants, they are 
> functions (CDF of Rayleigh distribution) and the integration is w.r.t. 
> to g0 and g1.

You did not happen to respond to the point about definite versus 
indefinite integral, but even without knowing that, we can be certain 
that there is no way to solve that system of equations without knowing 
dF0(g0) and dF1(g1). You also have to be specific about which expression 
is being integrated with respect to which variable -- or is it an 
unstated double integration instead of a single integration that your 
original post implies?