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/*******************************************************
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 *
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 * Author: Shinsaku Hiura, Hirokazu Kato
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 *
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 *         shinsaku@sys.es.osaka-u.ac.jp
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 *         kato@sys.im.hiroshima-cu.ac.jp
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 *
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 * Revision: 2.1
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 * Date: 99/07/16
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 *
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*******************************************************/
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#include <stdlib.h>
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#include <stdio.h>
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#include <math.h>
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#include <AR/matrix.h>
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double arVecInnerproduct( ARVec *x, ARVec *y )
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{
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    double   result = 0.0;
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    int      i;
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    if( x->clm != y->clm ) exit(0);
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    for( i = 0; i < x->clm; i++ ) {
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        result += x->v[i] * y->v[i];
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    }
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    return( result );
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}