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MatrixOperations.cpp

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// MatrixOperations.cpp: implementation of the CMatrixOperations class.
//

#include "MatrixOperations.h"

// Construction/Destruction

CMatrixOperations::CMatrixOperations()
{

}

CMatrixOperations::~CMatrixOperations()
{

}

double CMatrixOperations::DotProduct(double *v1, double *v2, int size)
{
        double sum = 0.0;
        for(int i = 0; i < size; i++)
        {
                sum += v1[i]*v2[i];
        }
        return sum;
}

double CMatrixOperations::VectorL2Norm(double *v, int size)
{
        double norm = 0.0;
        for(int i = 0; i < size; i++)
        {
                norm += v[i]*v[i];
        }
        return sqrt(norm);
}

double CMatrixOperations::VectorSupNorm(double *v, int size)
{
        double norm = 0.0;
        for(int i = 0; i < size; i++)
        {
                norm = __max(norm,fabs(v[i]));
        }
        return norm;
}

void CMatrixOperations::ElementCopy(double *vsource, double *vtarget, int size)
{
        for(int i = 0; i < size; i++)
        {
                vtarget[i] = vsource[i];
        }
        return;
}

void CMatrixOperations::RescaleVector(double *v, double scale, int size)
{
        for(int i = 0; i < size; i++)
        {
                v[i] = scale*v[i];
        }
        return;
}

void CMatrixOperations::TwoVectorLC(double a, double *x, double b, double *y, double *z, int size)
{
        for(int i = 0; i < size; i++)
        {
                z[i] = a*x[i] + b*y[i];
        }
        return;
}

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