Why does there is no numerical solution but a structure.

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Archit Asthana
Archit Asthana 2018-7-18
编辑： madhan ravi 2018-8-2
syms vc(t) vin Rc Cc Vc1 Lk Lin ip(t) il(t) ic(t)
eq1=((-1)*vin+Lin*diff(il, t)+ vc == 0);
eq2= (vc-Lk*diff(ip , t) == 0);
eq3= (Cc*diff(vc, t)+(1/Rc)*(vc-vin)- il+ip == 0);
cond=[vc(0)==Vc1];
svc=dsolve(eq1,eq2,eq3,cond)

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madhan ravi
madhan ravi 2018-7-18
编辑：madhan ravi 2018-8-2
Hi,
It’s because the solution is too long plus the solution output is one that’s why and all the variables are symbolic.
if you want to view the solution type
svc.ip
svc.il
svc.vc
if you want to view the solution without structure then use the following code which has three outputs:
[ip,il ,vc ]=dsolve(eq1,eq2,eq3,cond)

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