wsjdd1987628 发表于 2011-3-29 22:20

请教高手matlab求解方程组，出现warning

求解恰定方程Ax=b, 若A得条件数很大，出现这样Warning: Matrix is close to singular or badly scaled.
   Results may be inaccurate. RCOND = 1.761521e-018. 请教高手， 可以用什么方法来求解呢，从而得到较真实的解。
谢谢啦

ChaChing 发表于 2011-3-31 00:18

Ref:
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
...

meiyongyuandeze 发表于 2011-3-31 09:07

ChaChing 发表于 2011-3-31 00:18 static/image/common/back.gif
Ref:
http://www.mathworks.com/matlabcentral/newsreader/view_thread/170919
http://groups.google.com ...

谢谢，学习了!{:{39}:}
页: [1]
查看完整版本: 请教高手matlab求解方程组，出现warning