I wonder how one can do foo in FEniCS

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Jun 5, 2013, 8:03:20 AM6/5/13

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I have always wondered how I can assemble a vector in FEniCS. I thought:

mesh =UnitCube(10,10,10)
V = FunctionSpace(mesh, "CG", 1)
u = Function(V)

v = assemble(u)

would work, but it doesn't.

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Jun 5, 2013, 7:49:34 AM6/5/13

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Well have you tried:

v = TestFunction(V)
b = assemble(u*v*dx)

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Jun 5, 2013, 8:13:20 AM6/5/13

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You can only assemble forms.

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Jun 5, 2013, 8:27:00 AM6/5/13

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What do you mean, forms?

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Jun 5, 2013, 8:28:47 AM6/5/13

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Jun 5, 2013, 2:05:35 PM6/5/13

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Hmm... I'm not impressed by this interface...

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