k=1:10;
t=（k-1）/10;
y=erf（t）;

fun0=@（x）1;
fun1=@（x）x;
fun2=@（x）x*x;
fun3=@（x）power（x3）;
fun4=@（x）power（x4）;
fun5=@（x）power（x5）;
fun6=@（x）power（x6）;
fun7=@（x）power（x7）;
fun8=@（x）power（x8）;
fun9=@（x）power（x9）;
fun10=@（x）power（x10）;
fun11=@（x）exp（-x*x）;
fun12=@（x）exp（-x*x）/（1+x）;
fun13=@（x）exp（-x*x）/（1+x）/（1+x）;
fun14=@（x）exp（-x*x）/（1+x）/（1+x）/（1+x）;

phi1={fun0fun1};
phi2={fun0fun1fun2};
phi3={fun0fun1fun2fun3};
phi4={fun0fun1fun2fun3fun4};
phi5={fun0fun1fun2fun3fun4fun5};
phi6={fun0fun1fun2fun3fun4fun5fun6};
phi7={fun0fun1fun2fun3fun4fun5fun6fun7};
phi8={fun0fun1fun2fun3fun4fun5fun6fun7fun8};
phi9={fun0fun1fun2fun3fun4fun5fun6fun7fun8fun9};
phi10={fun0fun1fun2fun3fun4fun5fun6fun7fun8fun9fun10};

phi11={fun1fun3};
phi12={fun1fun3fun5};
phi13={fun1fun3fun5fun7};
phi14={fun1fun3fun5fun7fun9};

phi15={fun0fun11fun12fun13fun14};

err=zeros（151）;
[~err（1）]=leastsquareEstimation（phi1yt）;
[~err（2）]=leastsquareEstimation（phi2yt）;
[~err（3）]=leastsquareEstimation（phi3yt）;
[~err（4）]=leastsquareEstimation（phi4yt）;
[~err（5）]=leastsquareEstimation（phi5yt）;
[~err（6）]=leastsquareEstimation（phi6yt）;
[~err（7）]=leastsquareEstimation（phi7yt）;
[~err（8）]=leastsquareEstimation（phi8yt）;
[~err（9）]=leastsquareEstimation（phi9yt）;
[~err（10）]=leastsquareEstimation（phi10yt）;
[~err（11）]=leastsquareEstimation（phi11yt）;
[~err（12）]=leastsquareEstimation（phi12yt）;
[~err（13）]=leastsquareEstimation（phi13yt）;
[~err（14）]=leastsquareEstimation（phi14yt）;
[~err（15）]=leastsquareEstimation（phi15yt）;

format?long
err

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1677??2017-11-10?10:14??最小二乘函數擬合\Ex3_1.m
?????文件?????????638??2017-11-10?09:52??最小二乘函數擬合\leastsquareEstimation.m
?????文件???????24561??2018-12-15?14:13??最小二乘函數擬合\示例題目.docx