Exercise 1.13. Show that the hat function basis {i}"o of Vh is almost orthogonal. How can we see that it is almost orthogonal by looking at the non-zero elements of the mass matrix? What can we say about the mass matrix if we had a fully orthogo- nal basis?
Exercise 1.13. Show that the hat function basis {i}"o of Vh is almost orthogonal. How can we see that it is almost orthogonal by looking at the non-zero elements of the mass matrix? What can we say about the mass matrix if we had a fully orthogo- nal basis?
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Transcribed Image Text:Exercise 1.13. Show that the hat function basis {i}"o of Vh is almost orthogonal.
How can we see that it is almost orthogonal by looking at the non-zero elements of
the mass matrix? What can we say about the mass matrix if we had a fully orthogo-
nal basis?
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