heh there is a workaround...

max(a,b)  == (a+b-min(a,b))

In [51]: (sympy.Max(a, 1)*(a +2 - sympy.Min(a, 2)))
Out[51]: (a - Min(2, a) + 2)*Max(1, a)

works

however Min also appears to fail
In [58]: sympy.Min(a,3)*sympy.Min(a,4)
...
TypeError: cannot compare sets using cmp()




On Jan 11, 4:29 pm, Robert <[email protected]> wrote:
> Hey everyone!
>
> I've found another bug related to my upgrading to .7.1.
>
> Max(a, 1)*Max(a,2) raises a strange error. Has anyone encountered
> this? I did a search in the group and the issues but it doesn't look
> to be noticed.
>
> In [34]: a=sympy.Symbol('a')
>
> In [39]: sympy.Max(a, 1)*sympy.Max(a, 2)
>
> ...
>
> TypeError: cannot compare sets using cmp()
>
> In [40]: sympy.Max(a, 1)*sympy.Max(a, 1)
> Out[40]: Max(1, a)**2
>
> appears to work however.
>
> For the time being can anyone think of a work around?
>
> Thanks,
> Rob

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