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40 lines
1004 B
40 lines
1004 B
// svd.cpp : Defines the entry point for the console application.
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//
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#include "svd.h"
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namespace SVD
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{
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void Test()
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{
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SvdIterator<float> test;
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for ( int nTest = 0; nTest< 100; ++nTest )
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{
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Matrix3<float> a;
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for ( int i = 0; i < 3; ++i )
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for ( int j = 0; j < 3; ++j )
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a.m[ i ][ j ] = i * 3 + j;//float( rand() ) / RAND_MAX - 0.5f;
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test.Init( a );
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Msg( "%d", nTest );
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for ( int i = 0; i < 5; ++i )
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{
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Matrix3< float > v = test.ComputeV();
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// B = US = AV
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Matrix3< float > us = a * v;
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//float flOrtho = OrthogonalityError( us );
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Matrix3< float > reconstruction = MulT( us, v );
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//float flRec = ( reconstruction - a ).FrobeniusNorm();
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SymMatrix3< float > ata = AtA( a );
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float flOffDiagError = ata.OffDiagNorm() / ata.DiagNorm();
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// Msg( "\t%g", logf( flRec ) / logf( 10 ) );
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// Msg( "\t%g", logf( flOrtho ) / logf( 10 ) );
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Msg( "\t%g", logf( flOffDiagError ) / logf( 10 ) );
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test.Iterate( 1 );
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}
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Msg( "\n" );
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}
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}
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}
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