In vertex-centred arrangements, the variables at the vertices are only known. How is the variation of variables in these elements calculated?

Shape functions or Fourier series expansion

Interpolation profiles or Taylor series expansion

Shape functions or Taylor series expansion

Shape functions or interpolation profiles

Shape functions or Fourier series expansion

In vertex-centred arrangements, the variables at the vertices are only

1.	In vertex-centred arrangements, the variables at the vertices are only known. How is the variation of variables in these elements calculated?
A.	Interpolation profiles or Taylor series expansion
B.	Shape functions or Taylor series expansion
C.	Shape functions or interpolation profiles
D.	Shape functions or Fourier series expansion
Answer» D. Shape functions or Fourier series expansion