myfitcurve.m

a function called fit least square in mathematics with an excel sheet

function  myfitcurve(x,y,n)
p=polyfit(x,y,n);
z=polyval(p,x);
y1=p(1)*z+p(2);
plot(x,y,'bo',z,y1);
mcc -m myfitcurve.m