# How to use the Finite elements method with Mathematica?

Posted 9 years ago
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 Hi Every one,I'm actually trying to solve numerically some 3D Partial Differential Equations, such as the heat equation for example. Thus I wanted to use the Finite Elements Method for that. So I had a look on the wolfram tuto: http://reference.wolfram.com/language/FEMDocumentation/tutorial/SolvingPDEwithFEM.html#509267359If I understood well, I need first to download the [NDSolve'FEM'] package, don't I ? So I tried: Needs["NDSolveFEM"]But each time I try I got an error message :Get::noopen: Cannot open NDSolveFEM. >> Needs::nocont: "Context \!(\"NDSolveFEM\") was not created when Needs was evaluated."Does that means that this package is not included with Mathematica? (I'm using the 8.0.4 version) Do I need first to download this package from the internet? If yes do you know where I can find it, because I could not fin it anywhere -_-Because this package I cannot even solve the first example of the tuto :/ uif = NDSolveValue[{Laplacian[u[x, y], {x, y}] == 0, u[x, 0] == 0, u[x, 1] == 1, u[0, y] == 0, u[1, y] == 0}, u, {x, 0, 1}, {y, 0, 1}]; Plot3D[uif[x, y], {x, 0, 1}, {y, 0, 1}, ColorFunction -> "TemperatureMap"] (Nothing's plotted when I type the same text of the tuto)Thanks for your help!PS: I know that this is certainly not the first time that this question is asked but trust me I tried to find it on the forum and I couldn't fin anything. Also I'm not an informatic expert and english is not my native language so yeah I might have missed some points which may sound obvious for you ^^
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Posted 9 years ago
 Erf, I don't have a licence for this one snif -_- Thanks for your answer :)
Posted 9 years ago
 It's a new feature in Version 10:http://www.wolfram.com/mathematica/new-in-10/pdes-and-finite-elements/
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