83 Jacobi Gauss-Seidel Iterative Methods A mathematician about his colleague: He made a lot of mistakes but he made them in a good direction. I tried to copy this, but I found U out that it is very difficult to make good mistakes. 注:二种方法都存在收敛性问题。 有例子表明: Gauss-Seidel法收敛时, Jacobi法可能 不收敛)而 Jacobi法收敛时, Gauss-Seidel法也可能 不收敛。 p76#2给出了例子。 收敛性分析将在下节课讨论。A mathematician about his colleague: " He made a lot of mistakes, but he made them in a good direction. I tried to copy this, but I found out that it is very difficult to make good mistakes. " §3 Jacobi & Gauss-Seidel Iterative Methods 注：二种方法都存在收敛性问题。 有例子表明：Gauss-Seidel法收敛时，Jacobi法可能 不收敛；而Jacobi法收敛时， Gauss-Seidel法也可能 不收敛。 p.76 #2 给出了例子。 收敛性分析将在下节课讨论