public static double Trace(Matrix m)
{
double t = 0;
for (int i = 0; i < m.Rows && i < m.Cols; i++)
t += m[i, i];
return t;
}
/// <summary>Computes the trace of a matrix.</summary>
/// <param name="m">Matrix.</param>
/// <returns>trace.</returns>
public static double Trace(this Matrix m)
{
return(Matrix.Trace(m));
}