The Numerical Treatment of Time Varying Differential Algebraic Equations
REN Lei;WANG Wen-wu;Department of Mathematics,Shangqiu Normal University;
The numerical treatment of time varying differential algebraic equations is dicussed. Drazin inverse is given to solve the time varying differential algebraic equations. This method is tested on a index-1 differential algebraic system. According to the obtained solutions,it is inferred that Drazin inverse is a powerful tool for solving this kind of problems. It is shown that the precision of the Drazin inverse method is higher than the Radau IIA method,but the Drazin inverse method is implemented more complex than the Radau IIA method.