/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="matrix"></param>
/// <returns></returns>
public static T[][] MatrixColumns <T>(Span2D <T> matrix)
{
var rows = matrix.Height;
var vectors = new T[rows][];
for (int i = 0; i < rows; i++)
{
vectors[i] = matrix.GetColumn(i).ToArray();
}
return(vectors);
}
