4.1.3　矩阵的分解及线性方程组求解

可参考“Help ” → “ Contents”→“MATLAB”→“Mathematics”→“Matrices and linear algebra”→“Solving Linear Systems of Equations”和“Help”→“Contents”→“MATLAB”→“ Mathematics”→“Matrices and linear algebra”→“Cholesky，LU，and QR Factorizations”。