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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-datematlab4阶龙格库塔法程序matlab编的4阶龙格库塔法解微分方程的程序function varargout=saxplaxliu(varargin)clc,clearx0=0;xn=1.2;y0=1;h=0.1;y,x=lgkt4j(x0,xn,y0,h); n=length(x);fprintf( i x(i) y(i)n);for i=1:n fprintf
2、(%2d %4.4f %4.4fn,i,x(i),y(i);endfunction z=f(x,y) z=-2*x*y2;function y,x=lgkt4j(x0,xn,y0,h) x=x0:h:xn;n=length(x);y1=x;y1(1)=y0;for i=1:n-1 K1=f(x(i),y1(i); K2=f(x(i)+h/2,y1(i)+h/2*K1); K3=f(x(i)+h/2,y1(i)+h/2*K2); K4=f(x(i)+h,y1(i)+h*K3); y1(i+1)=y1(i)+h/6*(K1+2*K2+2*K3+K4);end y=y1;结果：i x(i) y(i)1 0.0000 1.00002 0.1000 0.99013 0.2000 0.96154 0.3000 0.91745 0.4000 0.86216 0.5000 0.80007 0.6000 0.73538 0.7000 0.67119 0.8000 0.609810 0.9000 0.552511 1.0000 0.500012 1.1000 0.452513 1.2000 0.4098-
matlab4阶龙格库塔法程序
