f.m

用matlab实现Romberg积分

function y=f(x)
%y=log10(x+2);
%y=x-10.^x+2;
%y=10.^x-2;
%y=x^4+5*x^3-9*x^2-85*x-136;
%y=600*x^4-550*x^3+200*x^2-20*x-1;
%y=3*(x-sin(x));
%y=(x-sin(x))*(1-cos(x));
%y=x.^2;
%y=-w+t+1;
%y=sqrt(1+cos(x)^2);
y=sin(x);
%y=Composite_Simpson(0,x,4);