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 Author Comment/Response Rahul Sharma 09/20/11 07:56am Hi, I am using Mathematica version 6.0 to solve a equation by FindRoot. i am getting a error message which says; FindRoot::nlnum: The function value {(0.01^Xrad Arad+1.*10^-9 \ 2.71828^(-1.*10^-6 To) Adi (1.+Power[<<2>>] Bdi)) Rat-(1000. \ 2.71828^(-1.*10^-6 Tcol) Acol)/(1.+(1.*10^6 ai)/Tcol)} is not a list \ of numbers with dimensions {1} at {T} = {1.*10^6}. >> My complete notebook looks like: In[1]:= Arad == 4.10*10^(-11); In[2]:= Xrad == 7.42*10^(-1); In[3]:= Adi == 6.23*10^(-2); In[4]:= To == 7.01*10^6; In[5]:= Bdi == 3.04*10 (-1); In[6]:= Ti == 1.47*10^6; In[7]:= Acol == 1.15*10^(-12); In[8]:= ai == 0.1; In[9]:= Tcol == 1.60*10^6; In[10]:= Rat == 0.047; In[11]:= FindRoot[ Rat*(Arad*(T/10^4)^(-Xrad) + (Adi*((T)^(-3/2))*Exp[-To/T])*(1 + Bdi*Exp[-Ti/T])) - (Acol*((T)^(1/ 2))*((1 + (ai*T)/(Tcol))^(-1))*Exp[-Tcol/T]), {T, 10^6}] During evaluation of In[11]:= FindRoot::nlnum: The function value \ {(0.01^Xrad Arad+1.*10^-9 2.71828^(-1.*10^-6 To) Adi (1.+Power[<<2>>] \ Bdi)) Rat-(1000. 2.71828^(-1.*10^-6 Tcol) Acol)/(1.+(1.*10^6 \ ai)/Tcol)} is not a list of numbers with dimensions {1} at {T} = \ {1.*10^6}. >> Out[11]= FindRoot[ Rat (Arad (T/ 10^4)^-Xrad + (Adi T^(-3/2) E^(-(To/T))) (1 + Bdi E^(-(Ti/T)))) - (Acol Sqrt[T] E^(-(Tcol/T)))/( 1 + (ai T)/Tcol), {T, 10^6}] A copy of my notebook with original is also attached. I would be heartily grateful to anyone who could help me in getting this equation solved. Many thanks. Rahul. Attachment: notebook.JPG, URL: ,

 Subject (listing for 'FindRoot error message') Author Date Posted FindRoot error message Rahul Sharma 09/20/11 07:56am Re: FindRoot error message Patrick 09/22/11 11:52am Re: Re: FindRoot error message Rahul Sharma 09/26/11 02:30am
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