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| 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 =... |
| Hi dears does anyone know what is the problem when i define this function in mathematica? b[a_ , t_] := a'[t] Sin[a[t]]; it gives : SetDelayed::write: Tag Times in (sin'[a[t]] a'[t])[a_ ,t_] is Protected. >> i want to define a... |