C# or C++ functions to return Eigen Values and Eigen Vectors of 2x2 and 3x3 Matrix

I need two functions written in either C# or C++ to return the Eigen Values and Eigen Vectors of a 2x2 or 3x3 Matrix.

I would expect the function calls to look something like:

public static double [] EigenValues(double [,] A)

{

if ([url removed, login to view] == 2) {

// px^2 + qx + r = 0 // Determinant of A ??" lambaI = 0

double p = 1;

double q = -A[0,0] ??" A[1,1];

double r = A[0,0]*A[1,1] ??" A[1,0]*A[0,1];

double[] v = new double[2];

v[0] = ??;

v[1] = ??;

} else if ([url removed, login to view] == 3) {

…

}

return v;

}

public static double [][] EigenVector(double[,] A)

{

double[] B = EigenValues(A);

}

## Deliverables

1) Two classes that compile in Miscrosft Visual Studio 2005 in either C# or C++

3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).

## Platform

C++ or C#

Microsoft Visual Studio 2005

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