Math Is Fun Forum

Yes, u can still assume x and z are beween range of 0 to 1.

y can be 0 or 1. this is only info i have abt y

Yes, The Problem Is Same What U Have Wriiten.

Thank U So Much For Trying It

Please Try To Reach Required Form. I Am Only Left With This Part Of The Project.

Cheers!

and there is third term as well. An exact problem is as follows:

F(x, y) =    ∑1 ∑2 y log2(1+ x*z/N*B* y) + c*(∑2 x -r) + a *(∑1 y – 1) 

∑1 represents summation ranges from p=1 to P

∑2 represents summation ranges from q=1 to Q

x, y and z are functions of p and q

'c' is a constant like 'a' and 'r' is another variable.

previosly i hvnt included c*(∑2 x -r) because i thought it wil be zero, when we do derivative of F(x, y) w.r.t y

i have given you exact problem now.

yes,  we are not goin to put values in this equation. that y in the denominator is nt a problem for my project

please help me out wd this equation

y can only take two values either 0 or 1

Sory in previous post, i hv written wrong. Actualy, x and z are variabes ranging between 0 to 1.

Hi bobbym...

i dnt wnt variables at RHS. anyways you solve it the best you can. please drive LHS same as required. we can c RHS later on

Thanks

hi bobbym... equation (3) is modified from ur equation. I have rearranged it.

you please try to rearrange it to the required form.... if we dnt get constant at right hand side... dunno wry.... u please bring it to the required form by any means.

Thanks

thanks... i want this equation somewht like equation 2... can u  solve it further.

actually i dont want to solve equation for a specific solution. my problem is different. ok let me try to explain it.

I have this equation.

F(x, y) =    y log2(1+ x*z/N*B* y) + a (y – 1)          ...........(1)

if we do derivative of eq (1) w.r.t y and equate it to 0 then it yields as follows:

ln (x*z / y) - x*z / y = __?___   ..............(2)

i want to find right hand side of equation (2), i know it is some constant but it is exactly equal to what? i want to find that. please help me out.

thanks..

YES, i HAVE USED THE SAME EQAUTION, GIVEN IN FORUM #50

IS IT OK?

hi..

but cant i use eqn on forum #33? and can you explain y i cant use it in reference to forum #44

thank u guys... u tried ur best....and with ur help i achieved some where...... thank u so much... u r doing gr8 job...keep it up.

my prob was just to solve that equation, which is solved by ur given soln as follows:

x1=x3W(e^(-a))/x2   

u meant above eqn is same as  ln(x1*x2/x3)-x1*x2/x3=a

Am i right?

can u also tell me...what will be lambert function of a (costant). i mean will it be some constant as well?

can u plz also describe why we need to use lambert function as i need to put all this in report.

once again thank u so much!!