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| Are you considering polynomials only? Then would MonomialList be enough? MonomialList[a x^2 + b x y + c y^2, {x, y}] Out[]= {a x^2, b x y, c y^2} |
| Now, I have made some changes introducing Block, and running x -> as i, and y -> as j,, see below:[mcode]$HistoryLength = 0; ClearSystemCache[]; ClearAll["Global`*"]; SetDirectory["/home/marcelo/Documentos/Tomlinson/2D"]; Block[{x, y, i, j, FmolaX,... |
| I got you guys. Thanks, I appreciate it. |
| Solve can do this work for you. Give it the equations, tell it to solve for Pc, while eliminating what you don't want:[mcode]eqs = {Gs == HVs/HHs, Gb == HVb/HHb, Ps == (VVs - VHs*Gs)/(VVs + VHs*Gs), Pb == (VVb - VHb*Gb)/(VVb + VHb*Gb), Pc... |
| Many patterns can be gathered into one structure with a Switch statement,[mcode]function1[{a_, b_, c_}] := Switch[{a, b, c}, {_?NumberQ, _?NumberQ, _String}, {a, b, a + b + 1}, {_String, _?NumberQ, _?NumberQ}, {b + c - 1, b, c}, {_?NumberQ,... |
| Todd - Thanks for checking in on me. I've been off the forums for a bit and just saw your last two posts. That is a good idea to flatten the objective function values and plot them. I was trying to figure out how to visualize five-dimensional data... |
| Simon, I believe I figured out why that happened. In my first attempt to use the DSolve routine, I mistakenly used '=' for '=='. That assignment side effect ruin all later computations. Thank you guys. Now the expressions work perfectly! I am still... |
| FindRoot seems to work somewhat, given two starting values for each variable. In[9]:= FindRoot[{EnEqZeroF==0,partBalZero==0},{{TcineV,2.4,2.6},{nccm3,1.1 10^14, 1.3 10^14}}] During evaluation of In[9]:= FindRoot::cvmit: Failed to converge to the... |
| Now I understand R and rff and that theta is your variable. Thank you. I apologize for not understanding your problem defining theta+s1. If you can explain more I will try to understand. Would you show me your definition for Bscatheta, Escatheta? ... |
| If you can show the simplest example of your integral that generates the enourmous number of terms and conditionals then someone might be able to offer a few suggestions to help get you started. |