ex17ch3.m

来自「these codes are for solving OED with mat」· M 代码 · 共 16 行

function sol = ex17ch3
solinit = bvpinit(linspace(0,1,5),[0.5 0]);
sol = bvp4c(@odes,@bcs,solinit);
plot(sol.x,sol.y(1,:));
fprintf('Other authors report y(0) = 0.63678, y(1) = 0.45759.\n');
fprintf('Values computed are  y(0) = %7.5f, y(1) = %7.5f\n',...
        sol.y(1,1),sol.y(1,end));
%=================================================
function dydx = odes(x,y)
dydx = [ y(2)
         y(2) + 2*y(1)^2 ];

function res = bcs(ya,yb)
res = [ ya(2) - (ya(1) - 1)
        yb(2) ];