[SciPy-user] Easy way to make a block diagonal matrix?
Joshua Stults
joshua.stults@gmail....
Wed May 20 16:58:52 CDT 2009
Probably numpy.kron() already provides this functionality plus easily
generating more general block matrices:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.kron.html
On Wed, May 20, 2009 at 5:40 PM, Joseph Smidt <josephsmidt@gmail.com> wrote:
> Actually, I don't know if you could submit this routine for inclusion
> into scipy itself. I'm sure there are lots of people who need to
> create block diagonal arrays like this. Plus, your script looks
> really well written.
>
> Joseph Smidt
>
> On Wed, May 20, 2009 at 2:37 PM, Joseph Smidt <josephsmidt@gmail.com> wrote:
>> Thank you, this looks exactly what I need.
>>
>> Joseph Smidt
>>
>> 2009/5/20 Stéfan van der Walt <stefan@sun.ac.za>:
>>> Hi Joseph
>>>
>>> 2009/5/20 Joseph Smidt <josephsmidt@gmail.com>:
>>>> Is there an easy way to create a block diagonal matrix from
>>>> existing matrices? For example, lets assume I have three 2x2 matrices
>>>> a, b and c. Is there something like d = block_diag(a,b,c) which would
>>>> create a 6x6 block diagonal matrix from a, b and c? If not, is there
>>>> a straight forward way to accomplish the same thing?
>>>
>>> The attached function should do the trick.
>>>
>>> Regards
>>> Stéfan
>>>
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>>>
>>
>>
>>
>> --
>> ------------------------------------------------------------------------
>> Joseph Smidt <josephsmidt@gmail.com>
>>
>> Physics and Astronomy
>> 4129 Frederick Reines Hall
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>> Office: 949-824-3269
>>
>
>
>
> --
> ------------------------------------------------------------------------
> Joseph Smidt <josephsmidt@gmail.com>
>
> Physics and Astronomy
> 4129 Frederick Reines Hall
> Irvine, CA 92697-4575
> Office: 949-824-3269
> _______________________________________________
> SciPy-user mailing list
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--
Joshua Stults
Website: http://j-stults.blogspot.com
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