def test_difficult_univariate():
 x = Normal('x', 0, 1)
 assert density((x ** 3))
 assert density(exp((x ** 2)))
 assert density(log(x))

def test_difficult_univariate ( ) : x = Normal ( 'x' , 0 , 1 ) assert density ( ( x ** 3 ) ) assert density ( exp ( ( x ** 2 ) ) ) assert density ( log ( x ) )
since using solve in place of deltaintegrate were able to perform substantially more complex density computations on single continuous random variables .