(PECL fann >= 1.0.0)
fann_get_rprop_delta_min — Returns the minimum step-size
$ann
) : floatThe minimum step-size is a small positive number determining how small the minimum step-size may be.
The default value delta min is 0.0.
annニューラルネットワークリソース。
The minimum step-size, or FALSE on error.