[交流] 【求助】help里面的例子怎么运行不了

function pdex1 m = 0; x = linspace(0,1,20); t = linspace(0,2,5); sol = pdepe(m,@pdex1pde,@pdex1ic,@pdex1bc,x,t); % Extract the first solution component as u. u = sol(:,:,1); % A surface plot is often a good way to study a solution. surf(x,t,u)    title('Numerical solution computed with 20 mesh points.') xlabel('Distance x') ylabel('Time t') % A solution profile can also be illuminating. figure plot(x,u(end,) title('Solution at t = 2') xlabel('Distance x') ylabel('u(x,2)') % -------------------------------------------------------------- function [c,f,s] = pdex1pde(x,t,u,DuDx) c = pi^2; f = DuDx; s = 0; % -------------------------------------------------------------- function u0 = pdex1ic(x) u0 = sin(pi*x); % -------------------------------------------------------------- function [pl,ql,pr,qr] = pdex1bc(xl,ul,xr,ur,t) pl = ul; ql = 0; pr = pi * exp(-t); qr = 1; 在help里面调出pdepe，这是里面的第一例子。为什么第一个surf图正常，第二个平面图出错呢？大家帮忙试试 ??? Error using ==> plot Too many input arguments. Error in ==> pdex1 at 19 plot(x,u(end,) [ Last edited by monitor2885 on 2009-9-23 at 16:24 ]

回复此楼