Hello everyone, I am new to sage (thanks for it ! it looks excellent !) and have been trying to re-factor some long expressions. As an example :
sage: var('x,y,a,b,c,d') (x, y, a, b, c, d) sage: T=expand((x^2+y^2)*(a*b+a^2-2*d*c+c^2-3*b^2));T a^2*x^2 + a^2*y^2 + a*b*x^2 + a*b*y^2 - 3*b^2*x^2 - 3*b^2*y^2 + c^2*x^2 + c^2*y^2 - 2*c*d*x^2 - 2*c*d*y^2 sage: T.collect(x^2+y^2) a^2*x^2 + a^2*y^2 + a*b*x^2 + a*b*y^2 - 3*b^2*x^2 - 3*b^2*y^2 + c^2*x^2 + c^2*y^2 - 2*c*d*x^2 - 2*c*d*y^2 I've played a bit and got lost in the doc... but could not find a way to have sage re-factor a given sub-expression out. (also it seems that T.coeffs(x^2+y^2) makes sage hanging...) Thanks for any help ! Cheers, P.A. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---