> Here's the same sort of thing in Mathematica. > > In[3]:= 12 == 2 > > Out[3]= False > > In[4]:= 1 == 1 > > Out[4]= True > > In[5]:= AcrSin[x] == 2 ArcTan[x/(1+Sqrt[1+x^2])] > > x > Out[5]= AcrSin[x] == 2 ArcTan[----------------] > 2 > 1 + Sqrt[1 + x ] > > > In[7]:= x^3 == x x^2 > > Out[7]= True > > As you can see, when Mathematica does not know if the expression is > true or false, it returns the expression, not "True" or "False".
Here's the same thing in Sage: sage: 12 == 2 False sage: 1 == 1 True sage: arcsin(x) == 2*arctan(x/(1+sqrt(1-x^2))) arcsin(x) == 2*arctan(x/(sqrt(-x^2 + 1) + 1)) sage: x^3 == x*x^2 x^3 == x^3 As you see, Sage does the exact same thing; although, it doesn't even try to determine if x^3 is equal x^3. But, the user is _explicitly_ asking to return either a True or False value -- that's what "bool" does in Python. --Mike -- 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
