8 #if sys.stdout.encoding is None:
9 # sys.stdout = codecs.open("/dev/stdout", "w", 'utf-8')
11 init_printing(use_unicode=False)
13 r, theta, s, la, mu = symbols('r theta s la mu')
17 # start original formulation
26 p_rightvars = p_start.subs(theta, s/r).subs(r, 1/la)