混合方程递推公式的直接列写法

DIRECT WRITING METHOD OF RECURRENCE FORMULA OF MIXED EQUATION

本文导出了混合方程递推公式的直接列写法。由于该方法的导出，使得计算机用暂态伴随模型法求解动态电路时，可以直接形成电路在不同时刻的混合方程。避免了重复、繁琐的矩阵运算，从而大大减少了计算工作量、节省了机时和内存，使暂态伴随模型法有更加广泛的使用价值。

This paper derives a direct writing method of recurrence formula of mixed equa-tion. It may form mixed requation in the various moment when the computer solves dy-namic circuits with the transient companion model method.Because the method greatly re-duces operating time of the heavy and complicated matrix operation,it has a widespreaduse value.