| private sigmoidDerivate ( double val, double lambda = 0.2 ) : double | ||
| val | double | |
| lambda | double | |
| 리턴 | double | |
private double sigmoidDerivate(double val, double lambda = 0.2)
{
return -System.Math.Exp(-lambda * val) / System.Math.Pow((1 + System.Math.Exp(-lambda * val)), 2);
}