I have defined my device assigning the current equations in EDD model. When I am trying to execute the simulation, it is showing error “Error in ‘OFET’: Operation expected in equation “(Vds>0)?((Vgs-Vt0)>0)?0.5*beta*(abs(Vt0)^n)(abs(((abs(Vgs)/abs(Vt0))-1))^n)*tanh((alpha*Vds)/(Vgs-Vt0)):0:0″.”