If there is keyword item UIC in. TRAN Card the transient analysis will use the initial conditions directly and if there is no keyword item UIC, SPICE will use the initial, conditions indirectly.

• 作瞬态分析时如TRAN卡中有关键字UIC；则直接使用这些初始条件；无UIC时；SPICE将间接使用这些初始条件.