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[ÇóÖú] matlab½âʱ¼ä×îÓÅ¿ØÖÆÊ¹ÓÃbvp4c½â¹þÃܶٷ½³Ì×éʱ³öÏÖ´íÎó

ÓÉÓÚÄ©¶Ëʱ¿Ìδ֪£¬ÎÒ½«Ê±¼ä±ä»»³ÉÄ©¶Ë¹Ì¶¨Ê±¿ÌµÄÎÊÌâʱ¼äÇø¼ä£¨0£¬T£©±ä»»³É£¨0,1£©£¬ÏàÓ¦µÄ״̬·½³Ì³ËÒÔT
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T=22;%²Â²â×îÓÅʱ¼ä
x=linspace(0,1,10);
solinit=bvpinit(x,[0 0 0 0 0 -1/4] ,T);
sol=bvp4c(@ode,@bc,solinit);
%״̬·½³Ì
function dydt=ode(t,y,T);
b=400;
v0=3;
a=4;
dydt=[T*y(3)*y(4)/sqrt(y(4)^2+y(5)^2)
    T*4/b^2*y(1)*(b-y(1))*v0+T*y(3)*y(5)/sqrt(y(4)^2+y(5)^2)
    T*sign(y(6))*-1*a;
    T*-1*4*y(5)/b^2*v0*(-2*y(1)+b)
    0
    T*-1*sqrt(y(4)^2+y(5)^2)]
%±ß½çÌõ¼þ
function res=bc(ya,yb,T);
res=[ ya(1)
      ya(2)
      ya(3)
      yb(1)-400
      yb(2)
      yb(3)];
  %%%%%%%%%%%%%%
ÔËÐкó·¢ÏÖ´íÎóΪ£ºError using bvparguments (line 112)
Error in calling BVP4C(ODEFUN,BCFUN,SOLINIT):
  The boundary condition function BCFUN should return a column vector of length 7.
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