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#pragma once
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#include "Defines.h"
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#include "iAlgMath_global.h"
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// <20><><EFBFBD><EFBFBD>α<EFBFBD><CEB1><EFBFBD><EFBFBD><EFBFBD>ⷽ<EFBFBD><E2B7BD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>SVD<56>㷨 <20>÷<EFBFBD><C3B7><EFBFBD>ֻΪ<D6BB>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
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// SVD<56>㷨ͨ<E3B7A8><CDA8><EFBFBD>漰<EFBFBD><E6BCB0><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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// <20><><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>˼<EFBFBD><CBBC><EFBFBD>Jacobi<62><69><EFBFBD><EFBFBD>SVD<56>㷨<EFBFBD>Ŀ<EFBFBD><C4BF>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>ľ<EFBFBD><C4BE><EFBFBD><EFBFBD><EFBFBD>
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// <20><><EFBFBD>ڴ˻<DAB4><CBBB><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>־<EFBFBD><D6BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>棨<EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣩<EFBFBD><E2A3A9>
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// <20><>ע<EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ܶ<EFBFBD><DCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>н<EFBFBD><D0BD><EFBFBD><EFBFBD>Ż<EFBFBD><C5BB>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ȶ<EFBFBD><C8B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡣
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϴ<CFB4><F3A3ACB1>һ<E0B2BB><D2BB><EFBFBD><EFBFBD><EFBFBD>ʡ<EFBFBD>
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class I_ALGMATH_EXPORT zxAlgMatrixPsInvSVD
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{
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public:
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zxAlgMatrixPsInvSVD();
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~zxAlgMatrixPsInvSVD();
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#ifdef QT_DEBUG
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void test();
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#endif
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public:
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// <20><><EFBFBD><EFBFBD>α<EFBFBD><CEB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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VVecDouble pseudoInverse(VVecDouble& A);
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private:
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// svg
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bool svd(VVecDouble& A);
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// sqrt(a^2 + b^2) without under/overflow
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double hypot(double a, double b);
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private:
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// <20><><EFBFBD><EFBFBD>
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VVecDouble U;
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VVecDouble V;
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VecDouble s;
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int m;
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int n;
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};
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