fem2d_project_function_test, a C++ code which calls fem2d_project_function(), which projects a function W(X,Y), given as a formula, into a given finite element method (FEM) space of piecewise linear triangular elements.
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fem2d_project_function, a C++ code which projects a function f(x,y), given as a formula, into a given finite element method (FEM) space of piecewise linear triangular elements.