On Aug 22, 2009, at 3:13 AM, Mani chandra wrote:
>
> Mani chandra wrote:
>> Hi,
>>
>> How does one define a variable in sage and make sure the it's
>> conjugate is the same as the variable itself?
>>
>> Thanks,
>> Mani chandra
>>
>>>
>>
>>
> Hi,
>
> Perhaps I wasn't specific.
>
> sage: var('a')
> sage: a.conjugate()
> conjugate(a)
>
> What I want is for SAGE to return a, instead of conjugate(a). Does
> "var"
> take any arguments that forces a variable to be real?
You have to invoke simplify for it to look at assumptions.
sage: var('a')
sage: assume(a, 'real')
sage: a.conjugate().simplify()
a
- Robert
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