def copula_bv_ev(u, v, transform, args=()):
 return np.exp((np.log((u * v)) * transform((np.log(v) / np.log((u * v))), *args)))

def copula_bv_ev ( u , v , transform , args = ( ) ) : return np . exp ( ( np . log ( ( u * v ) ) * transform ( ( np . log ( v ) / np . log ( ( u * v ) ) ) , * args ) ) )
generic bivariate extreme value copula .