bipolar sigmoid function . concode_field_sep double sigmoPrecomputed[] concode_elem_sep double SIGMO_RANGE concode_field_sep double sigmoidBiFast concode_elem_sep double lim concode_elem_sep boolean insideInclusive concode_elem_sep double sqr concode_elem_sep int sqr concode_elem_sep double sigmoidUniFast concode_elem_sep boolean inside concode_elem_sep boolean inside concode_elem_sep double sigmoidUni
double function ( double arg0 ) { return 2.0 / ( 1.0 + Math . exp ( - arg0 ) ) - 1.0 ; }