/// <summary>
///
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public Matrix <float> Forward(Matrix <float> input)
{
m_inputActivations = input;
m_inputActivations.CopyTo(OutputActivations); // possible to avoid copy and use input directly?
m_activation.Activation(OutputActivations.Data());
return(OutputActivations);
}