I dont want this . this i can do directly by str(sympify(expr)) My question was to distinguish "x+x+y" and 2*x+y (which i can do by evaluate=False) and equality identification of "x+x+y" and "x+y+x" (which fails if evaluate=False)
anyways i am using that workaround which i posted in my previous mail. On Fri, Nov 11, 2011 at 12:49 PM, Chris Smith <[email protected]> wrote: > Something like this might work, then: > > >>> from sympy.utilities.iterables import cart > >>> terms = [x, x+y, x-y] > >>> for e in cartes(terms, ["+","-"], terms): > ... expr = ' '.join([str(x) for x in e]) > ... ans = S(expr) > ... print expr,';',ans > ... > x - y + x - y ; 2*x - 2*y > x - y + x ; 2*x - y > x - y + x - 2*y ; 2*x - 3*y > x - y - x - y ; -2*y > x - y - x ; -y > x - y - x - 2*y ; -3*y > x + x - y ; 2*x - y > x + x ; 2*x > x + x - 2*y ; 2*x - 2*y > x - x - y ; -y > x - x ; 0 > x - x - 2*y ; -2*y > x - 2*y + x - y ; 2*x - 3*y > x - 2*y + x ; 2*x - 2*y > x - 2*y + x - 2*y ; 2*x - 4*y > x - 2*y - x - y ; -3*y > x - 2*y - x ; -2*y > x - 2*y - x - 2*y ; -4*y > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
