Question: Answer Exercise 11.6.5 when the finite element subspace W consists of all periodic piecewise affine functions of period 1, so (x + 1) = (x).

Answer Exercise 11.6.5 when the finite element subspace W" consists of all periodic piecewise affine functions of period 1, so φ(x + 1) = φ(x). Which version is better?

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