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+clc
+//Example 14.9
+//Install Symbolic toolbox
+//Find the voltage v(t)
+syms s
+s=%s
+//From figure 14.6
+//Writing the KCL equation and taking the Laplace transform
+V=4/(s*(s+4))+9/(s+4)
+V1=4/(s*(s+4))
+V2=9/(s+4)
+V1p=pfss(V1)
+v1=ilaplace(V1p(1))
+v2=ilaplace(V1p(2)+V2)
+v=v1+v2
+disp(v,'v(t)=')
+\ No newline at end of file