mcdewey wrote:
>> min is a builtin python function and isn't smart
>> about symbolic functions; it just returns the first thing when it comes
>> to symbolic expressions:
>>
> ...
>> I would do this like:
>>
>> sage: min(f(-10,-10) for f in [e1,e2,e3])
>> -127
>>
>> In other words, evaluate the functions before calling min.
>>
>> Jason
>
> Thanks - that explains the problem but doesn't quite get where I
> wanted to go.
> Is there a version of min that understands symbolic functions?
> I would like to be able to send the resulting equation to plot3d.
You could define a function that calls the min:
def mymin(x,y):
return min(f(-10,-10) for f in [e1,e2,e3])
Then plot mymin.
Jason
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