def _int0oo_1(g, x):
 from sympy import gamma, combsimp, unpolarify
 (eta, _) = _get_coeff_exp(g.argument, x)
 res = (1 / eta)
 for b in g.bm:
  res *= gamma((b + 1))
 for a in g.an:
  res *= gamma(((1 - a) - 1))
 for b in g.bother:
  res /= gamma(((1 - b) - 1))
 for a in g.aother:
  res /= gamma((a + 1))
 return combsimp(unpolarify(res))

def _int0oo_1 ( g , x ) : from sympy import gamma , combsimp , unpolarify ( eta , _ ) = _get_coeff_exp ( g . argument , x ) res = ( 1 / eta ) for b in g . bm : res *= gamma ( ( b + 1 ) ) for a in g . an : res *= gamma ( ( ( 1 - a ) - 1 ) ) for b in g . bother : res /= gamma ( ( ( 1 - b ) - 1 ) ) for a in g . aother : res /= gamma ( ( a + 1 ) ) return combsimp ( unpolarify ( res ) )
evaluate int_0^infty g dx using g functions .