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wwwyasu

金虫 (正式写手)

[交流] 【求助】奇异值分解程序(SVD分解程序) 已有10人参与

重金求一奇异值分解源程序(SVD分解程序),C语言编的源程序,不是MATLAB的SVD调用程序,谢谢大家的参与

[ Last edited by wwwyasu on 2010-5-13 at 20:41 ]
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xcenxcen

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小木虫: 金币+0.5, 给个红包,谢谢回帖
lapack里有 开源的 可以自己看源代码 如果你看得懂的话
待我长发及腰,遮住一身肥膘。纵然虎背熊腰,也要高冷傲娇。
9楼2014-10-14 17:14:53
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snoopyzhao

至尊木虫 (职业作家)

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余泽成(金币+1):谢谢参与应助! 2010-05-09 12:40:50
Matlab 中有现成的函数可以做啊,这个几乎是数值软件必备的……
3楼2010-05-09 10:23:57
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dont

银虫 (小有名气)


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余泽成(金币+2):谢谢参与应助! 2010-05-09 12:41:13
wwwyasu(金币+1):谢谢参与,但是我要的C语言编的源程序,不是MATLAB的调用程序 2010-05-13 20:44:02
奇异值分解,在matlab里面一个语句就实现了。


SVD    Singular value decomposition.
    [U,S,V] = SVD(X) produces a diagonal matrix S, of the same
    dimension as X and with nonnegative diagonal elements in
    decreasing order, and unitary matrices U and V so that
    X = U*S*V'.

    S = SVD(X) returns a vector containing the singular values.

    [U,S,V] = SVD(X,0) produces the "economy size"
    decomposition. If X is m-by-n with m > n, then only the
    first n columns of U are computed and S is n-by-n.
    For m <= n, SVD(X,0) is equivalent to SVD(X).

    [U,S,V] = SVD(X,'econ') also produces the "economy size"
    decomposition. If X is m-by-n with m >= n, then it is
    equivalent to SVD(X,0). For m < n, only the first m columns
    of V are computed and S is m-by-m.

    See also svds, gsvd.

    Overloaded functions or methods (ones with the same name in other directories)
       help sym/svd.m
       help frd/svd.m

    Reference page in Help browser
       doc svd
4楼2010-05-09 11:49:08
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yujun2010

wwwyasu(金币+1):是源程序吗,能不能发我邮箱里,谢谢,wwwyasu@hotmail.com 2010-05-23 11:23:06
C++数值算法里好像有,不过我实在不知道怎么上传,谁告诉下我吧
5楼2010-05-18 13:22:18
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