File list (Check if you may need any files):
wavelet_duofenbian
..................\chebyshev_data
..................\..............\C1_da.txt
..................\..............\C1_xiao.txt
..................\..............\C2_da.txt
..................\..............\C2_xiao.txt
..................\..............\normal.txt
..................\..............\PSO_chebyshev.m
..................\..............\R2_da.txt
..................\..............\R2_xiao.txt
..................\..............\R3_da.txt
..................\..............\R3_xiao.txt
..................\wavelet_fenbian.m