Revision history [back]

Regarding 1, see the answer of https://ask.sagemath.org/question/47851/optimization-under-constraint

Regarding 2, which factorization would you expect ?

Regarding 3, you ar lucky because in the tree of the representation of the expression, alpha+beta appears as subtrees, so the following works:

sage: U1.subs({alpha+beta:1})
A*(R*alpha/p_x)^alpha*(R*beta/p_y)^beta

Regarding 4, if you are using jupyter notebook, you can add the following in the first cell:

%display latex