作业帮matlab求解常微分y=dsolve('D3y-3*D2y-Dy*y=0','y(0)=1 Dy(0)=-1 D2y(
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matlab求解常微分y=dsolve('D3y-3*D2y-Dy*y=0','y(0)=1 Dy(0)=-1 D2y(0)=0','t')
错误如下
? Error using ==> dsolve
at offset 84, `=` unexpected
Error in ==> fun1 at 1
y=dsolve('D3y-3*D2y-Dy*y=0','y(0)=1 Dy(0)=-1 D2y(0)=0','t')
求大神啊
错误如下
? Error using ==> dsolve
at offset 84, `=` unexpected
Error in ==> fun1 at 1
y=dsolve('D3y-3*D2y-Dy*y=0','y(0)=1 Dy(0)=-1 D2y(0)=0','t')
求大神啊
第一,你有语法错误
y=dsolve('D3y-3*D2y-Dy*y=0','y(0)=1','Dy(0)=-1','D2y(0)=0','t')
第二,没有显式解
只能把初始条件去掉可得隐式解
y=dsolve('D3y-3*D2y-Dy*y=0','y(0)=1','Dy(0)=-1','D2y(0)=0','t')
第二,没有显式解
只能把初始条件去掉可得隐式解
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