%?數據
x?=?[565.454?562.058?561.39?563.782?567.941?571.255?571.938?569.5].‘;
y?=?[528.012?525.544?521.447?518.108?517.407?519.857?523.953?527.356].‘;
z?=?[...].‘;
%?擬合
x?=?x（:）;?y?=?y（:）;