判断一个IP地址是否合法，并判断该地址是否属于一个给定子网。从而考察读者是否对IP地址概念及其子网划分有非常清楚的认识。-To determine the legality of an IP address and determine whether the address belongs to a network to the stator. In order to study whether the reader the concept of IP addresses and subnett

you have an AC tachometer. this program ask you about machine parameters in per unit consist of stator resistance,reactance, rotor resistance,reactance,magnetizing reactance, voltage, frequency, min speed and max speed. so,voltage output,tourqe a