Why does there is no numerical solution but a structure.

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)

Answer 1

[madhan ravi]

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)