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A means of solving ordinary and partial differential equations. The domain of the problem is broken up into elements, and the solution in each element is expanded in a basis of functions. The Finite Element Method lends itself well to adaptive refinement, irregular geometry, and good error estimates.

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Problem with my Octave code (unsteady heat equation with FEM)

I want help with my Octave code regarding the unsteady heat equation. My geometry and mesh are generated with FreeFEM++, so there is no problem with that (I tried it with the steady problem with no fo …