Hi all forum people, I need use the maple for symbolic solutions, I am a beginner user.

I read about the isolate, solve, equations, expressions and functions in maple, I have a great confusion in my head.

My needs are, make a equations (with currents and voltages) and isolate any variable in a time, and combine them with another equations.

  ic=vin/L*Ton+im

if=(vin-vo)/L*Toff+im

dil/dt=(if-im)/T

another case: