this function tests if the value x is a positive integer concode_field_sep double[] COEFFICIENTS concode_elem_sep double SQRT_2PI concode_field_sep double logValue concode_elem_sep boolean isInteger concode_elem_sep double series concode_elem_sep double factorial concode_elem_sep boolean isNegativeInteger concode_elem_sep double value concode_elem_sep double leadingTerm
boolean function ( double arg0 ) { return isInteger ( arg0 ) && arg0 > 0 ; }