# [SciPy-user] any symbolic manipulation of eigenvalue in Scipy?

Ivo Maljevic ivo.maljevic@gmail....
Tue Jun 9 19:12:34 CDT 2009

```I had a missmatching brackets which didn't seem to matter. Anyway, a better
way to write your query is to input:

eigenvalue{{ a,     b,   a*b  },{a+b,  0,    0    } ,{c,     a,     c+b}}

Ivo

2009/6/9 Ivo Maljevic <ivo.maljevic@gmail.com>

> If you need to find a quick result than the easiest way is to go through
> wolfram alpha. Just enter:
> eig{{ a,     b,   a*b  ]},{a+b,  0,    0    } ,{c,     a,     c+b}}
>
> or use the following link:
>
>
> http://www06.wolframalpha.com/input/?i=eig{{+a%2C+++++b%2C+++a*b++]}%2C{a%2Bb%2C++0%2C++++0++++}+%2C{c%2C+++++a%2C+++++c%2Bb}}<http://www06.wolframalpha.com/input/?i=eig%7B%7B+a%2C+++++b%2C+++a*b++%5D%7D%2C%7Ba%2Bb%2C++0%2C++++0++++%7D+%2C%7Bc%2C+++++a%2C+++++c%2Bb%7D%7D>
>
> (put the line together if broken).
>
> Ivo
>
> 2009/6/9 Xiaojian Wang <wangxj.uc@gmail.com>
>
>> Hi,
>> I would like to know if there is any module in Scipy (or Numpy?),  which
>> has capability
>> of symbolic manipulation and can generate matrix's
>> eigenvalues/eigenvectors.
>> My matrix is symbolic, such as a 3x3 matrix:
>>
>> [ a,     b,   a*b  ]
>> [a+b,  0,    0    ]
>> [c,     a,     c+b]
>>
>> a,b,c could be any values in my future applications.
>> if not, do you guy know any other programs can do this?
>>
>> Many thanks for your help in advance!
>>
>> Xiaoijan
>>
>>
>> _______________________________________________
>> SciPy-user mailing list
>> SciPy-user@scipy.org
>> http://mail.scipy.org/mailman/listinfo/scipy-user
>>
>>
>
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