>> clear
>> syms X Y;
>> [x,y]=ode45('D2X-(3.0813E+009)*X^2+(8.7260E+011)*Y^2-(1.3143E+009)*X*Y-(5.7908E+009)*X+(9.8032E+009)*Y+(2.1081E+009)=0','D2Y-300.59*X^2+448.1487*Y^2-(9.7960E+005)*X*Y-(2.1748E+005)*X+(1.2322E+007)*Y-(4.5759E+004)=0',[-19,19],[0,0.9]')
??? Error using ==> funfun\private\odearguments
Correct syntax is ode45(D2X-(3.0813E+009)*X^2+(8.7260E+011)*Y^2-(1.3143E+009)*X*Y-(5.7908E+009)*X+(9.8032E+009)*Y+(2.1081E+009)=0,tspan,y0,options).
不好意思,这个错误在哪里喔 |