Question: no output???

Question:no output???

casperyc 962 Maple

Hi,

I am using Maple 11.02 on win xp sp2 in classical worksheet

 

I put

 

restart:

ode:=2*diff(y(x),x$2)-y(x)/x+y(x)^3*cos(x);
 

dsolve(ode,y(x));

 

 

maple give me nothing at all  ?? just like I typed  " : " instead of  "  ;   "

 

why?

 

Thanks

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