matlab做常系数微分方程时 syms x y;y=dsolve(['d3y+3*d1y-4*y=','x'])出现如下错误Error using ==> mapleat offset 2,`}` unexpected

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matlab做常系数微分方程时 syms x y;y=dsolve(['d3y+3*d1y-4*y=','x'])出现如下错误Error using ==> mapleat offset 2,`}` unexpected

matlab做常系数微分方程时 syms x y;y=dsolve(['d3y+3*d1y-4*y=','x'])出现如下错误Error using ==> mapleat offset 2,`}` unexpected
matlab做常系数微分方程时 syms x y;y=dsolve(['d3y+3*d1y-4*y=','x'])出现如下错误
Error using ==> maple
at offset 2,`}` unexpected

matlab做常系数微分方程时 syms x y;y=dsolve(['d3y+3*d1y-4*y=','x'])出现如下错误Error using ==> mapleat offset 2,`}` unexpected
y=dsolve('D3y+3*Dy-4*y=x','x')
y =
C4*exp(x) - x/4 + (C2*cos((15^(1/2)*x)/2))/exp(x/2) + (C3*sin((15^(1/2)*x)/2))/exp(x/2) - 3/16

help dsolve
你这个命令调用格式错了

括号应该是半角