Hello list, I feel a bit embarrassed as probably I am doing something blatantly wrong, but I cannot understand what is going here. Consider this snippet (copy pasted from an Ipython notebook):
""" import sympy sympy.init_printing() from sympy import Symbol,sqrt,cos,sin,solve,Function,atan,apart,S # Some symbols h,n,m,M,g,t,xi_s,eta_s = [Symbol(_) for _ in ['h','n','m','M','g','t',r'\xi',r'\eta']] pxi,peta = [Symbol(_) for _ in [r'p_\xi',r'p_\eta']] # A rational expression foo = 32*eta_s**8*g*m/(eta_s**2+xi_s**2)**3-64*eta_s**6*g*m/(eta_s**2+xi_s**2)**2-23*g/2*eta_s**2*m-7*g/2*xi_s**2*m+(320*eta_s**4*g*m**2+peta**2+pxi**2)/(8*m*(eta_s**2+xi_s**2)) """ Now if I do "foo_apart(xi_s)", it seems like there are two parts of the expression that disappear. (specifically, -23*g/2*eta_s**2*m-7*g/2*xi_s**2*m is not there any more). Indeed, if I do: """ foo.apart(xi_s).expand() == foo.expand() """ This returns False. My brain is a bit fried at the moment :) So what am I overlooking here? Cheers, Francesco. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAHExjCsbts1UA_p%3DB6g-%2B6H7ny_MJomiaCjb5YgzSMAgDTs08g%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
