#NEWLINE# def _eval_rewrite_as_uppergamma( self , z ) : #NEWLINE# #INDENT# from sympy import uppergamma #NEWLINE# return ( ( sqrt ( ( - ( z ** 2 ) ) ) / z ) * ( ( uppergamma ( S . Half , ( - ( z ** 2 ) ) ) / sqrt ( S . Pi ) ) - S . One ) )