/// <summary>
/// Euclidean distance squared.
/// </summary>
public static double Dist2Squared(Floatarray a, Floatarray b)
{
if (!a.SameDims(b))
{
throw new Exception("Dist2Squared: !a.SameDims(b)");
}
double total = 0.0;
for (int i = 0; i < a.Length1d(); i++)
{
float val = a.At1d(i) - b.At1d(i);
total += val * val;
}
if (double.IsNaN(total))
{
throw new Exception("Dist2Squared: total is NaN !");
}
return(total);
}