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Dear David do you know what the problem is when i run the code below : ---- For[k = 1, k fitnessfnew[[i - 1, k]], pbest1[[k]] = xx1[[k]]; pbest2[[k]] = xx2[[k]];pbest3[[k]] = xx3[[k]]; pbest4[[k]] = xx4[[k]];] vv1[[k]] = vv1[[k]] + c1...
Hello Dears i recently tried to find a root with "FindRoot" in Mathematica. I know that the problem has a solution, but when using FindRoot, this error appears : FindRoot::lstol: The line search decreased the step size to within tolerance...
Dears most recently i encountered with another problem in mathematica NDSolve i had defined some equations "lagrangeo1" ,"lagrangei1", and "lagrangei2" that are differential equations. but when it started to solve: lagrangesolve =...
Dear George most recently i encountered with another problem in mathematica NDSolve i had defined some equations "lagrangeo1" ,"lagrangei1", and "lagrangei2" that are differential equations. but when started to solve: lagrangesolve = ...