(PECL fann >= 1.0.0)
fann_set_quickprop_decay — ����quickprop�㷨˥������
$ann
, float $quickprop_decay
) : bool����quickprop�㷨˥�����ӡ�
annNeural network resource.
quickprop_decayquickprop�㷨˥�����ӡ�
Returns TRUE on success, or FALSE otherwise.