[Numpy-discussion] LU factorization?

Robert Kern robert.kern@gmail....
Wed Oct 15 15:04:47 CDT 2008


On Wed, Oct 15, 2008 at 14:49, Charles R Harris
<charlesr.harris@gmail.com> wrote:
>
> On Wed, Oct 15, 2008 at 1:06 PM, Robert Kern <robert.kern@gmail.com> wrote:
>>
>> On Wed, Oct 15, 2008 at 00:23, Charles R Harris
>> <charlesr.harris@gmail.com> wrote:
>> > Hi All,
>> >
>> > numpy.linalg has qr and cholesky factorizations, but LU factorization is
>> > only available in scipy. That doesn't seem quite right. I think is would
>> > make sense to include the LU factorization in numpy among the basic
>> > linalg
>> > operations, and probably LU_solve also. Thoughts?
>>
>> -1. As far as I am concerned, numpy.linalg exists because Numeric had
>> LinearAlgebra, and we had to provide it to allow people to upgrade. I
>> do not want to see an expansion of functionality to maintain.
>
> I would be happier with that argument if scipy was broken into separately
> downloadable modules and released on a regular schedule.

Then that is the deficiency that we should spend time on, not
duplicating the functionality again.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
  -- Umberto Eco


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