Weak Form of the Partial Differential Equation - Lesson 5

The discussion continues the analytical solutions and needs for approximate solutions is introduced. Use of the finite difference method to solve any differential equation is introduced. The weak form of a linear elliptic partial differential equation is introduced, and the weak form is solved with one Dirichlet boundary condition.



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The weak form is the basis of the finite element method and other variational-based numerical methods. The equivalence between the strong and the weak form is demonstrated. A strong form will lead to a weak form. The weighting function is introduced.



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