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 Author Comment/Response jf 05/23/13 11:00am The problem is upstream from Plot. Look at DR for a typical value of T, In[8]:= DR[0.12, 1, 1, 0.08, 0.05] Out[8]= -1.*Log[(63.98528749321458*ˆ)/2.718281828459045^(4.8540672474690165*ˆ)] The exponent has a number times a caret symbol. I converted the inputs to simpler formatting (Cell menu - ConvertTo - RawInputForm) and saw an oddity. B[Alpha_, Gamma_, Sigma_, t_, T_] := ((2*(Exp[Eta[Alpha, Sigma]*(T - t)] - 1))/ ((Alpha + Eta[Alpha, Sigma])*(Exp[Eta[Alpha, Sigma]*(T - t)] - 1) + 2*Eta[Alpha, Sigma]))*ˆ*(2*Alpha*(Gamma/Sigma^2)); Note "..Sigma]))*ˆ*(2*Alpha.." - the caret is treated as a separate symbol. Function A has a similar glitch. The thing that you are using as a caret (^) is different than the shorthand for Power. I suggest retyping that character. The standard caret on most American keyboards is a Shift-6. Since DR is not giving just a number, Plot cannot plot it. URL: ,

 Subject (listing for 'Problem with Plot') Author Date Posted Problem with Plot Thibault 05/23/13 04:20am Re: Problem with Plot jf 05/23/13 11:00am Re: Problem with Plot Bill Simpson 05/23/13 12:02pm
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