Non-Tensor-Power Formal Two-dimensional Wavelet FEM

Based on two-dimensional Daubechies wavelet constructed by profession Jin Jian-ming, this paper we compute the function and differential of two-dimensional Daubechies wavelet, do some exercise about non-tensor-power formal two-dimensional wavelet FEM.The paper consists of two part. In part I, we recommend some result about two-dimensional Daubechies wavelet constructed by profession Jin Jian-ming, based on it, we give value of two-dimensional Daubechies wavelet and its differential. In Part II, we know value of two-dimensional Daubechies wavelet and its differential, so with the example of sheet, discuss non-tensor-power formal two-dimensional wavelet FEM with two-dimensional Daubechies wavelet.