Question: Chap 2 . Exercise 1 7 Consider a finite element with three nodes, as shown in the figure. When the solution is approximated using u

Chap2.
Exercise 17
Consider a finite element with three nodes, as shown in the figure. When the solution
is approximated using u(x)=N1(x)u1+N2(x)u2+N3(x)u3, calculate the
interpolation functions N1(x),N2(x), and N3(x). Hint: Start with an assumed
solution in the following form: u(x)=c0+c1x+c2x2.
Chap 2 . Exercise 1 7 Consider a finite element

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