public NDarray <double> Backward(NDarray <double> accumGrad)
{
var x = activation.Grad(LastInput);
for (int i = 0; i < accumGrad.Count; ++i)
{
accumGrad.Data[i] *= x.Data[i];
}
return(accumGrad);
}
public NDarray <Type> Backward(NDarray <Type> accumGrad) => accumGrad *activation.Grad(LayerInput);
public NDarray <U> Backward(NDarray <U> accumGrad)
{
var x = activation.Grad(LastInput);
return(ND.Mul(x, accumGrad));
}