求解决这个警告！Matrix is close to singular or badly scaled.
inv(M1)%输入这个命令 提示警告，怎么解决啊Warning: Matrix is close to singular or badly scaled.
Results may be inaccurate. RCOND = 2.308810e-022.
为什么会这样啊？ help inv
INV Matrix inverse.
INV(X) is the inverse of the square matrix X.
A warning message is printed if X is badly scaled or
nearly singular.
是你矩阵的问题，接近奇异或严重结垢 可能需要归一化等方法解决，或者求广义逆。
另：http://www.mathworks.cn/matlabcentral/newsreader/view_thread/294643
Matrix is close to singular or badly scaled
http://www.mathworks.com/matlabcentral/newsreader/view_thread/170919
http://groups.google.com/group/comp.soft-sys.matlab/browse_thread/thread/f640ae64aa62fbe6
http://dmpeli.mcmaster.ca/Matlab/Math1J03/LectureNotes/Lecture2_4.htm
from http://forum.vibunion.com/home-space-uid-63979-do-blog-id-18250.html
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