public override List <Matrix <T> > BackPropagate(List <Matrix <T> > targets, bool needInputSens = false)
{
List <Matrix <T> > prop = OutLayer.ErrorPropagate(targets);
if (LayersList.Count < 2)
{
return(prop);
}
for (int i = LayersList.Count - 2; i > 0; i--)
{
var layer = LayersList[i];
prop = layer.BackPropagate(prop, true);
}
return(InLayer.BackPropagate(prop, needInputSens));
}