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Channel: COMSOL Forums: Meaning of "node" vs. "vertex" vs. "degree of freedom" for linear finite elements.
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Re: Meaning of "node" vs. "vertex" vs. "degree of freedom" for linear finite elements.

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Hey Josh,

thank you so much for this picture. That was a real eye opener. I always assumed that there must be more vertices/nodes than tetrahedra. That is why outputs like
==========
Results:
~400k linear elems
~69k DoF (nodes)
==========
confused me in the first place. I just didn't have a proper counter example. Thank you so much. Now my FEM world view is back to normal again. :)

Btw, do you have any idea where the ratio 0.2 is coming from?

Greetings Joerg

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