The jacobin matrix and its elements for differential - algebraic equation simultaneous solution with newton method are formed . the network injection current and its partial differential coefficient are also derived . so , the basic calculation formulas for the full dynandc simulation are established 導(dǎo)出了牛頓法聯(lián)立求解微分方程組和代數(shù)方程組的雅可比矩陣,以及雅可比矩陣各元素的計算公式;導(dǎo)出了網(wǎng)絡(luò)方程中電流注入量及偏導(dǎo)數(shù)的計算公式。