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From: Husam Aldahiyat on 19 Mar 2010 03:00
"parul agrawal" <parulagrawal18(a)gmail.com> wrote in message <hnv70e$7j3$1(a)fred.mathworks.com>...
> syms z
> Ps = max_signal_power*(10^(-total_loss_s/(10*z)));
> Pp = max_pumping_power*(10^(-total_loss_p/(10*z)));
> Ps_desh = Ps/Ps_saturation;
> Pp_desh = Pp/Pp_saturation;
> A = Nt*(Pp_desh + Ps_desh);
> B = (1+(2*Ps_desh)+Pp_desh);
> N2 = A/B;
> N1 = Nt-N2;
>
> L = input('enter the length in meter');
> L_desh = [0:1:L];
> l = length(L_desh);
>
> F1 = int(N2,z,0,0);
> F2 = int(N1,z,0,0);
> F = ((sigma_signal_emission*F1)-(sigma_signal_absorption*F2));
> G = gama_s*exp(F);
>
> for i =L_desh(1,2):L_desh(1,l);
> F1 = int(N2,z,0,i);
> F1 = double(F1);
> F2 = int(N1,z,0,i);
> F2 = double(F2);
> F = ((sigma_signal_emission*F1)-(sigma_signal_absorption*F2));
> F = double(F);
> G = [G,gama_s*exp(F)];
> G = double(G);
> end
> plot(L_desh,G);
> grid;
>
>
>
>
> its giving first taht
> explicit integral is not found ...when i tried to debug it....i found that problem is in reshape function(inside coding of int function)...when i checked the value of' ps' and tried to change it 'double' it is giving :
>
> >>double(Ps)
> ??? Error using ==> reshape
> To RESHAPE the number of elements must not change.
>
>
> help plz

What is Nt?
And for future reference, don't go inside MATLAB functions and edit them!!!
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