数值分析方法,主要里面涵盖了计算方法方面matlab程序！

				%ErFen二分法
				clear
				clc
				eps=5e-6;
				delta=1e-6;
				a=1;
				b=2;
				fa=f2_1(a);
				fb=f2_1(b);
				n=1;
				while(1)
				    if(fa*fb>0)
				        break;
				    end
				    c=(a+b)/2;
				    fc=f2_1(c);
				    if(abs(fc)				        break;
				    elseif(fa*fc				        b=c;
				        fb=fc;
				    else
				        a=c;
				        fa=fc;
				    end
				    if(b-a				        break;
				    end
				    n=n+1;
				end
				n
				c
				fc