Hello,
I don't think that's so great to make [5, 4] the empty set because one
interval can also be seen like one convex hull : [a;b] = {k a + (1 - k)b |
0 <= k <= 1} .Best regards. Christophe. -- 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.
