The Complete SPRLIB & ANNLIB

DerTransDblSigmoid

- first derivative of transfer function

SYNOPSIS

double DerTransDblSigmoid (unit)

ARGUMENTS

UNIT *unit A pointer to a UNIT structure.

RETURNS

The output of unit as calculated using the Value.Activation field value.

FUNCTION

The return value is 2 * g * (1-g), where g is TransSigmoid (unit).

SEE ALSO

TransDblSigmoid, DerDerTransDblSigmoid, TransLinear, TransTanH, TransParTanH, TransGauss, TransSigmoid, get_trans_func_name, get_trans_func_ptr, get_trans_func_no_pars

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