111.sagews

x = var('x')
y = var('y')
integrate((2*x-1)^(1/3), x  1.. 4)

line 6 integrate(ellipsis_iter((_sage_const_2 *x-_sage_const_1 )**(_sage_const_1 /_sage_const_3 ), x _sage_const_1 ,Ellipsis, _sage_const_4 )) ^ SyntaxError: invalid syntax