Hi,

Can you open an issue in our issue tracker for this?

Aaron Meurer

On Wed, Jan 11, 2012 at 3:42 PM, Robert <[email protected]> wrote:
> 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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