matlab五对角矩阵

Question

怎么随机生成三对角矩阵（矩阵为30*30）
Randomly generate tridiagonal matrix (30 * 30), and use Jacobi iteration and Gauss Seidel iteration to solve them respectively. The error of the solution in terms of norm is required to be less than 1/1000.就是这个

Answer 1

• 可以看下matlab参考手册中的 matlab 确定矩阵是否为对角矩阵 isdiag